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3f08a302f5
921455 Commits
Author | SHA1 | Message | Date | |
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Mike Rapoport
|
3f08a302f5 |
mm: remove CONFIG_HAVE_MEMBLOCK_NODE_MAP option
CONFIG_HAVE_MEMBLOCK_NODE_MAP is used to differentiate initialization of nodes and zones structures between the systems that have region to node mapping in memblock and those that don't. Currently all the NUMA architectures enable this option and for the non-NUMA systems we can presume that all the memory belongs to node 0 and therefore the compile time configuration option is not required. The remaining few architectures that use DISCONTIGMEM without NUMA are easily updated to use memblock_add_node() instead of memblock_add() and thus have proper correspondence of memblock regions to NUMA nodes. Still, free_area_init_node() must have a backward compatible version because its semantics with and without CONFIG_HAVE_MEMBLOCK_NODE_MAP is different. Once all the architectures will use the new semantics, the entire compatibility layer can be dropped. To avoid addition of extra run time memory to store node id for architectures that keep memblock but have only a single node, the node id field of the memblock_region is guarded by CONFIG_NEED_MULTIPLE_NODES and the corresponding accessors presume that in those cases it is always 0. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Hoan Tran <hoan@os.amperecomputing.com> [arm64] Acked-by: Catalin Marinas <catalin.marinas@arm.com> [arm64] Cc: Baoquan He <bhe@redhat.com> Cc: Brian Cain <bcain@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Mark Salter <msalter@redhat.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Nick Hu <nickhu@andestech.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/20200412194859.12663-4-rppt@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Rapoport
|
6f24fbd38c |
mm: make early_pfn_to_nid() and related defintions close to each other
early_pfn_to_nid() and its helper __early_pfn_to_nid() are spread around include/linux/mm.h, include/linux/mmzone.h and mm/page_alloc.c. Drop unused stub for __early_pfn_to_nid() and move its actual generic implementation close to its users. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Hoan Tran <hoan@os.amperecomputing.com> [arm64] Reviewed-by: Baoquan He <bhe@redhat.com> Cc: Brian Cain <bcain@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Mark Salter <msalter@redhat.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Nick Hu <nickhu@andestech.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/20200412194859.12663-3-rppt@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Rapoport
|
d622abf74f |
mm: memblock: replace dereferences of memblock_region.nid with API calls
Patch series "mm: rework free_area_init*() funcitons". After the discussion [1] about removal of CONFIG_NODES_SPAN_OTHER_NODES and CONFIG_HAVE_MEMBLOCK_NODE_MAP options, I took it a bit further and updated the node/zone initialization. Since all architectures have memblock, it is possible to use only the newer version of free_area_init_node() that calculates the zone and node boundaries based on memblock node mapping and architectural limits on possible zone PFNs. The architectures that still determined zone and hole sizes can be switched to the generic code and the old code that took those zone and hole sizes can be simply removed. And, since it all started from the removal of CONFIG_NODES_SPAN_OTHER_NODES, the memmap_init() is now updated to iterate over memblocks and so it does not need to perform early_pfn_to_nid() query for every PFN. [1] https://lore.kernel.org/lkml/1585420282-25630-1-git-send-email-Hoan@os.amperecomputing.com This patch (of 21): There are several places in the code that directly dereference memblock_region.nid despite this field being defined only when CONFIG_HAVE_MEMBLOCK_NODE_MAP=y. Replace these with calls to memblock_get_region_nid() to improve code robustness and to avoid possible breakage when CONFIG_HAVE_MEMBLOCK_NODE_MAP will be removed. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Hoan Tran <hoan@os.amperecomputing.com> [arm64] Reviewed-by: Baoquan He <bhe@redhat.com> Cc: Brian Cain <bcain@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Mark Salter <msalter@redhat.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Mike Rapoport <rppt@kernel.org> Cc: Nick Hu <nickhu@andestech.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/20200412194859.12663-1-rppt@kernel.org Link: http://lkml.kernel.org/r/20200412194859.12663-2-rppt@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Michal Hocko
|
574c1ae66c |
mm: clarify __GFP_MEMALLOC usage
It seems that the existing documentation is not explicit about the expected usage and potential risks enough. While it is calls out that users have to free memory when using this flag it is not really apparent that users have to careful to not deplete memory reserves and that they should implement some sort of throttling wrt. freeing process. This is partly based on Neil's explanation [1]. Let's also call out that a pre allocated pool allocator should be considered. [1] http://lkml.kernel.org/r/877dz0yxoa.fsf@notabene.neil.brown.name [akpm@linux-foundation.org: coding style fixes] [mhocko@kernel.org: update] Link: http://lkml.kernel.org/r/20200406070137.GC19426@dhcp22.suse.cz Signed-off-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: David Rientjes <rientjes@google.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: Neil Brown <neilb@suse.de> Cc: Paul E. McKenney <paulmck@kernel.org> Cc: John Hubbard <jhubbard@nvidia.com> Link: http://lkml.kernel.org/r/20200403083543.11552-2-mhocko@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Daniel Axtens
|
47227d27e2 |
string.h: fix incompatibility between FORTIFY_SOURCE and KASAN
The memcmp KASAN self-test fails on a kernel with both KASAN and FORTIFY_SOURCE. When FORTIFY_SOURCE is on, a number of functions are replaced with fortified versions, which attempt to check the sizes of the operands. However, these functions often directly invoke __builtin_foo() once they have performed the fortify check. Using __builtins may bypass KASAN checks if the compiler decides to inline it's own implementation as sequence of instructions, rather than emit a function call that goes out to a KASAN-instrumented implementation. Why is only memcmp affected? ============================ Of the string and string-like functions that kasan_test tests, only memcmp is replaced by an inline sequence of instructions in my testing on x86 with gcc version 9.2.1 20191008 (Ubuntu 9.2.1-9ubuntu2). I believe this is due to compiler heuristics. For example, if I annotate kmalloc calls with the alloc_size annotation (and disable some fortify compile-time checking!), the compiler will replace every memset except the one in kmalloc_uaf_memset with inline instructions. (I have some WIP patches to add this annotation.) Does this affect other functions in string.h? ============================================= Yes. Anything that uses __builtin_* rather than __real_* could be affected. This looks like: - strncpy - strcat - strlen - strlcpy maybe, under some circumstances? - strncat under some circumstances - memset - memcpy - memmove - memcmp (as noted) - memchr - strcpy Whether a function call is emitted always depends on the compiler. Most bugs should get caught by FORTIFY_SOURCE, but the missed memcmp test shows that this is not always the case. Isn't FORTIFY_SOURCE disabled with KASAN? ========================================- The string headers on all arches supporting KASAN disable fortify with kasan, but only when address sanitisation is _also_ disabled. For example from x86: #if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__) /* * For files that are not instrumented (e.g. mm/slub.c) we * should use not instrumented version of mem* functions. */ #define memcpy(dst, src, len) __memcpy(dst, src, len) #define memmove(dst, src, len) __memmove(dst, src, len) #define memset(s, c, n) __memset(s, c, n) #ifndef __NO_FORTIFY #define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */ #endif #endif This comes from commit |
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Daniel Axtens
|
adb72ae191 |
kasan: stop tests being eliminated as dead code with FORTIFY_SOURCE
Patch series "Fix some incompatibilites between KASAN and FORTIFY_SOURCE", v4.
3 KASAN self-tests fail on a kernel with both KASAN and FORTIFY_SOURCE:
memchr, memcmp and strlen.
When FORTIFY_SOURCE is on, a number of functions are replaced with
fortified versions, which attempt to check the sizes of the operands.
However, these functions often directly invoke __builtin_foo() once they
have performed the fortify check. The compiler can detect that the
results of these functions are not used, and knows that they have no other
side effects, and so can eliminate them as dead code.
Why are only memchr, memcmp and strlen affected?
================================================
Of string and string-like functions, kasan_test tests:
* strchr -> not affected, no fortified version
* strrchr -> likewise
* strcmp -> likewise
* strncmp -> likewise
* strnlen -> not affected, the fortify source implementation calls the
underlying strnlen implementation which is instrumented, not
a builtin
* strlen -> affected, the fortify souce implementation calls a __builtin
version which the compiler can determine is dead.
* memchr -> likewise
* memcmp -> likewise
* memset -> not affected, the compiler knows that memset writes to its
first argument and therefore is not dead.
Why does this not affect the functions normally?
================================================
In string.h, these functions are not marked as __pure, so the compiler
cannot know that they do not have side effects. If relevant functions are
marked as __pure in string.h, we see the following warnings and the
functions are elided:
lib/test_kasan.c: In function `kasan_memchr':
lib/test_kasan.c:606:2: warning: statement with no effect [-Wunused-value]
memchr(ptr, '1', size + 1);
^~~~~~~~~~~~~~~~~~~~~~~~~~
lib/test_kasan.c: In function `kasan_memcmp':
lib/test_kasan.c:622:2: warning: statement with no effect [-Wunused-value]
memcmp(ptr, arr, size+1);
^~~~~~~~~~~~~~~~~~~~~~~~
lib/test_kasan.c: In function `kasan_strings':
lib/test_kasan.c:645:2: warning: statement with no effect [-Wunused-value]
strchr(ptr, '1');
^~~~~~~~~~~~~~~~
...
This annotation would make sense to add and could be added at any point,
so the behaviour of test_kasan.c should change.
The fix
=======
Make all the functions that are pure write their results to a global,
which makes them live. The strlen and memchr tests now pass.
The memcmp test still fails to trigger, which is addressed in the next
patch.
[dja@axtens.net: drop patch 3]
Link: http://lkml.kernel.org/r/20200424145521.8203-2-dja@axtens.net
Fixes:
|
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John Hubbard
|
f81cd178ec |
mm/gup: might_lock_read(mmap_sem) in get_user_pages_fast()
Instead of scattering these assertions across the drivers, do this assertion inside the core of get_user_pages_fast*() functions. That also includes pin_user_pages_fast*() routines. Add a might_lock_read(mmap_sem) call to internal_get_user_pages_fast(). Suggested-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Matthew Wilcox <willy@infradead.org> Cc: Michel Lespinasse <walken@google.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Link: http://lkml.kernel.org/r/20200522010443.1290485-1-jhubbard@nvidia.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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John Hubbard
|
2170ecfa76 |
drm/i915: convert get_user_pages() --> pin_user_pages()
This code was using get_user_pages*(), in a "Case 2" scenario (DMA/RDMA), using the categorization from [1]. That means that it's time to convert the get_user_pages*() + put_page() calls to pin_user_pages*() + unpin_user_pages() calls. There is some helpful background in [2]: basically, this is a small part of fixing a long-standing disconnect between pinning pages, and file systems' use of those pages. [1] Documentation/core-api/pin_user_pages.rst [2] "Explicit pinning of user-space pages": https://lwn.net/Articles/807108/ Signed-off-by: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Souptick Joarder <jrdr.linux@gmail.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: "Joonas Lahtinen" <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Matthew Auld <matthew.auld@intel.com> Link: http://lkml.kernel.org/r/20200519002124.2025955-5-jhubbard@nvidia.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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John Hubbard
|
104acc3276 |
mm/gup: introduce pin_user_pages_fast_only()
This is the FOLL_PIN equivalent of __get_user_pages_fast(), except with a more descriptive name, and gup_flags instead of a boolean "write" in the argument list. Signed-off-by: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: David Airlie <airlied@linux.ie> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: "Joonas Lahtinen" <joonas.lahtinen@linux.intel.com> Cc: Matthew Auld <matthew.auld@intel.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Souptick Joarder <jrdr.linux@gmail.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://lkml.kernel.org/r/20200519002124.2025955-4-jhubbard@nvidia.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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John Hubbard
|
376a34efa4 |
mm/gup: refactor and de-duplicate gup_fast() code
There were two nearly identical sets of code for gup_fast() style of walking the page tables with interrupts disabled. This has lead to the usual maintenance problems that arise from having duplicated code. There is already a core internal routine in gup.c for gup_fast(), so just enhance it very slightly: allow skipping the fall-back to "slow" (regular) get_user_pages(), via the new FOLL_FAST_ONLY flag. Then, just call internal_get_user_pages_fast() from __get_user_pages_fast(), and adjust the API to match pre-existing API behavior. There is a change in behavior from this refactoring: the nested form of interrupt disabling is used in all gup_fast() variants now. That's because there is only one place that interrupt disabling for page walking is done, and so the safer form is required. This should, if anything, eliminate possible (rare) bugs, because the non-nested form of enabling interrupts was fragile at best. [jhubbard@nvidia.com: fixup] Link: http://lkml.kernel.org/r/20200521233841.1279742-1-jhubbard@nvidia.com Signed-off-by: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: David Airlie <airlied@linux.ie> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: "Joonas Lahtinen" <joonas.lahtinen@linux.intel.com> Cc: Matthew Auld <matthew.auld@intel.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Souptick Joarder <jrdr.linux@gmail.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://lkml.kernel.org/r/20200519002124.2025955-3-jhubbard@nvidia.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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John Hubbard
|
9e1f0580d3 |
mm/gup: move __get_user_pages_fast() down a few lines in gup.c
Patch series "mm/gup, drm/i915: refactor gup_fast, convert to pin_user_pages()", v2. In order to convert the drm/i915 driver from get_user_pages() to pin_user_pages(), a FOLL_PIN equivalent of __get_user_pages_fast() was required. That led to refactoring __get_user_pages_fast(), with the following goals: 1) As above: provide a pin_user_pages*() routine for drm/i915 to call, in place of __get_user_pages_fast(), 2) Get rid of the gup.c duplicate code for walking page tables with interrupts disabled. This duplicate code is a minor maintenance problem anyway. 3) Make it easy for an upcoming patch from Souptick, which aims to convert __get_user_pages_fast() to use a gup_flags argument, instead of a bool writeable arg. Also, if this series looks good, we can ask Souptick to change the name as well, to whatever the consensus is. My initial recommendation is: get_user_pages_fast_only(), to match the new pin_user_pages_only(). This patch (of 4): This is in order to avoid a forward declaration of internal_get_user_pages_fast(), in the next patch. This is code movement only--all generated code should be identical. Signed-off-by: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: David Airlie <airlied@linux.ie> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: "Joonas Lahtinen" <joonas.lahtinen@linux.intel.com> Cc: Matthew Auld <matthew.auld@intel.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Souptick Joarder <jrdr.linux@gmail.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://lkml.kernel.org/r/20200522051931.54191-1-jhubbard@nvidia.com Link: http://lkml.kernel.org/r/20200519002124.2025955-1-jhubbard@nvidia.com Link: http://lkml.kernel.org/r/20200519002124.2025955-2-jhubbard@nvidia.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Shakeel Butt
|
dd8657b6c1 |
mm/memcg: optimize memory.numa_stat like memory.stat
Currently reading memory.numa_stat traverses the underlying memcg tree multiple times to accumulate the stats to present the hierarchical view of the memcg tree. However the kernel already maintains the hierarchical view of the stats and use it in memory.stat. Just use the same mechanism in memory.numa_stat as well. I ran a simple benchmark which reads root_mem_cgroup's memory.numa_stat file in the presense of 10000 memcgs. The results are: Without the patch: $ time cat /dev/cgroup/memory/memory.numa_stat > /dev/null real 0m0.700s user 0m0.001s sys 0m0.697s With the patch: $ time cat /dev/cgroup/memory/memory.numa_stat > /dev/null real 0m0.001s user 0m0.001s sys 0m0.000s [akpm@linux-foundation.org: avoid forcing out-of-line code generation] Signed-off-by: Shakeel Butt <shakeelb@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Roman Gushchin <guro@fb.com> Cc: Michal Hocko <mhocko@kernel.org> Link: http://lkml.kernel.org/r/20200304022058.248270-1-shakeelb@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Wang Hai
|
dde3c6b72a |
mm/slub: fix a memory leak in sysfs_slab_add()
syzkaller reports for memory leak when kobject_init_and_add() returns an
error in the function sysfs_slab_add() [1]
When this happened, the function kobject_put() is not called for the
corresponding kobject, which potentially leads to memory leak.
This patch fixes the issue by calling kobject_put() even if
kobject_init_and_add() fails.
[1]
BUG: memory leak
unreferenced object 0xffff8880a6d4be88 (size 8):
comm "syz-executor.3", pid 946, jiffies 4295772514 (age 18.396s)
hex dump (first 8 bytes):
70 69 64 5f 33 00 ff ff pid_3...
backtrace:
kstrdup+0x35/0x70 mm/util.c:60
kstrdup_const+0x3d/0x50 mm/util.c:82
kvasprintf_const+0x112/0x170 lib/kasprintf.c:48
kobject_set_name_vargs+0x55/0x130 lib/kobject.c:289
kobject_add_varg lib/kobject.c:384 [inline]
kobject_init_and_add+0xd8/0x170 lib/kobject.c:473
sysfs_slab_add+0x1d8/0x290 mm/slub.c:5811
__kmem_cache_create+0x50a/0x570 mm/slub.c:4384
create_cache+0x113/0x1e0 mm/slab_common.c:407
kmem_cache_create_usercopy+0x1a1/0x260 mm/slab_common.c:505
kmem_cache_create+0xd/0x10 mm/slab_common.c:564
create_pid_cachep kernel/pid_namespace.c:54 [inline]
create_pid_namespace kernel/pid_namespace.c:96 [inline]
copy_pid_ns+0x77c/0x8f0 kernel/pid_namespace.c:148
create_new_namespaces+0x26b/0xa30 kernel/nsproxy.c:95
unshare_nsproxy_namespaces+0xa7/0x1e0 kernel/nsproxy.c:229
ksys_unshare+0x3d2/0x770 kernel/fork.c:2969
__do_sys_unshare kernel/fork.c:3037 [inline]
__se_sys_unshare kernel/fork.c:3035 [inline]
__x64_sys_unshare+0x2d/0x40 kernel/fork.c:3035
do_syscall_64+0xa1/0x530 arch/x86/entry/common.c:295
Fixes:
|
||
Linus Torvalds
|
d6f9469a03 |
Changes since last update:
- Convert to use the new mount apis; - Some random cleanup patches. -----BEGIN PGP SIGNATURE----- iIsEABYIADMWIQThPAmQN9sSA0DVxtI5NzHcH7XmBAUCXtbfOhUcaHNpYW5na2Fv QHJlZGhhdC5jb20ACgkQOTcx3B+15gTvZgD6Ap8mYxRaW7Qta+HEyFuyRrxWZ/XZ pq/hYiouGosDdaMBAOUNl8pGlPX54T+Y9VZv0wV0Dp4pan6NApdgtL9fIQUE =QhQh -----END PGP SIGNATURE----- Merge tag 'erofs-for-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs Pull erofs updates from Gao Xiang: "The most interesting part is the new mount api conversion, which is actually a old patch already pending for several cycles. And the others are recent trivial cleanups here. Summary: - Convert to use the new mount apis - Some random cleanup patches" * tag 'erofs-for-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs: erofs: suppress false positive last_block warning erofs: convert to use the new mount fs_context api erofs: code cleanup by removing ifdef macro surrounding |
||
Linus Torvalds
|
cadf32234b |
Replace zero-length array in JFS
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEIodevzQLVs53l6BhNqiEXrVAjGQFAl7WbbAACgkQNqiEXrVA jGRBvg//aff/q785MyIKlv2icnWJTFIfkFhdKBfD36OI5Obur3ko17gJiRQ7BvIl 07yBTOpcqYyq4pThFXA8TfiZyRxKv0faHeFYmtmEum6gZNtHPmpvfy1JFr12vjHZ SWSpylW6nprQJa61KwGHcRqTGuWe0sco6BBAQ/E015wJLKrtIpNCH5H3x3eDv8we nBPSHSu1BsJFTcf94ECZhjbsiLgLgTaYVFUU8tw7eTp7EkZz9xq6wYmhZ6e5Z6Ki AGbIQ/c16Nk5B3/8A1bU0pm7BHz9Zx1ucNy4KZqyFl2fWEmQiv1ofa3cfLI+ZAF2 /TFzLW+rpvesc+Byk7PgzRrLNXAMBk+botzdlN8JPaPDFYcm6whnRKstmjYGAzCI /bpTI9wyEPzlfWtt5h2ws1KaP5HNl1OLd3sJCzfwH+nKaeJpdBBSaZRQ0yZWIsg5 hzt9WnJ10351sbLbAA4ybsOlWJvhPtSo8jSiGUGzu7aFyfa7H82nslWHuFjeI3F0 qgcA5j6LJ8qAviMnhxX5jrqIMNZzyf+P5/oJvXjfSeWft1yD6EUqRqb7i0FREjh6 qzxiX6xhRSh8AIr3XlToG3W7KULQkBJKwZumSTQ2X03yJRhelqKAs3LvvyXoZuG3 oFvGgiGNph0VSTTPdOSrZZ3tOCDiONXfHHOFpghk4qKdWgFoWtg= =yNwD -----END PGP SIGNATURE----- Merge tag 'jfs-5.8' of git://github.com/kleikamp/linux-shaggy Pull JFS update from David Kleikamp: "Replace zero-length array in JFS" * tag 'jfs-5.8' of git://github.com/kleikamp/linux-shaggy: jfs: Replace zero-length array with flexible-array member |
||
Linus Torvalds
|
f3cdc8ae11 |
for-5.8-tag
-----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE8rQSAMVO+zA4DBdWxWXV+ddtWDsFAl7U50AACgkQxWXV+ddt WDtK1g//RXeNsTguYQr1N9R5eUPThjLEI0+4J0l4SYfCPU8Ou3C7nqpOEJJQgm8F ezZE+16cWi9U5uGueOc+w0rfyz4AuIXKgzoz+c0/GG2+yV5jp6DsAMbWqojAb96L V/N3HxEzR66jqwgVUBE/x5okb2SyY7//B1l/O0amc66XDO7KTMImpIwThere6zWZ o2SNpYpHAPQeUYJQx8h+FAW3w1CxrCZmnifazU9Jqe9J7QeQLg7rbUlJDV38jySm ZOA8ohKN9U1gPZy+dTU3kdyyuBIq1etkIaSPJANyTo5TczPKiC0IMg75cXtS4ae/ NSxhccMpSIjVMcIHARzSFGYKNP3sGNRsmaTUg/2Cx/9GoHOhYMiCAVc8qtBBpwJO UI0siexrCe64RuTBMRRc128GdFv7IjmSImcdi8xaR62bCcUiNdEa3zvjRe/9tOEH ET7Z85oBnKpSzpC3MdhSUU4dtHY5XLawP8z3oUU1VSzSWM2DVjlHf79/VzbOfp18 miCVpt94lCn/gUX7el6qcnbuvMAjDyeC6HmfD+TwzQgGwyV6TLgKN9lRXeH/Oy6/ VgjGQSavGHMll3zIGURmrBCXKudjJg0J+IP4wN1TimmSEMfwKH+7tnekQd8y5qlF eXEIqlWNykKeDzEnmV9QJy+/cV83hVWM/mUslcTx39tLN/3B/Us= =qTt8 -----END PGP SIGNATURE----- Merge tag 'for-5.8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull btrfs updates from David Sterba: "Highlights: - speedup dead root detection during orphan cleanup, eg. when there are many deleted subvolumes waiting to be cleaned, the trees are now looked up in radix tree instead of a O(N^2) search - snapshot creation with inherited qgroup will mark the qgroup inconsistent, requires a rescan - send will emit file capabilities after chown, this produces a stream that does not need postprocessing to set the capabilities again - direct io ported to iomap infrastructure, cleaned up and simplified code, notably removing last use of struct buffer_head in btrfs code Core changes: - factor out backreference iteration, to be used by ordinary backreferences and relocation code - improved global block reserve utilization * better logic to serialize requests * increased maximum available for unlink * improved handling on large pages (64K) - direct io cleanups and fixes * simplify layering, where cloned bios were unnecessarily created for some cases * error handling fixes (submit, endio) * remove repair worker thread, used to avoid deadlocks during repair - refactored block group reading code, preparatory work for new type of block group storage that should improve mount time on large filesystems Cleanups: - cleaned up (and slightly sped up) set/get helpers for metadata data structure members - root bit REF_COWS got renamed to SHAREABLE to reflect the that the blocks of the tree get shared either among subvolumes or with the relocation trees Fixes: - when subvolume deletion fails due to ENOSPC, the filesystem is not turned read-only - device scan deals with devices from other filesystems that changed ownership due to overwrite (mkfs) - fix a race between scrub and block group removal/allocation - fix long standing bug of a runaway balance operation, printing the same line to the syslog, caused by a stale status bit on a reloc tree that prevented progress - fix corrupt log due to concurrent fsync of inodes with shared extents - fix space underflow for NODATACOW and buffered writes when it for some reason needs to fallback to COW mode" * tag 'for-5.8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (133 commits) btrfs: fix space_info bytes_may_use underflow during space cache writeout btrfs: fix space_info bytes_may_use underflow after nocow buffered write btrfs: fix wrong file range cleanup after an error filling dealloc range btrfs: remove redundant local variable in read_block_for_search btrfs: open code key_search btrfs: split btrfs_direct_IO to read and write part btrfs: remove BTRFS_INODE_READDIO_NEED_LOCK fs: remove dio_end_io() btrfs: switch to iomap_dio_rw() for dio iomap: remove lockdep_assert_held() iomap: add a filesystem hook for direct I/O bio submission fs: export generic_file_buffered_read() btrfs: turn space cache writeout failure messages into debug messages btrfs: include error on messages about failure to write space/inode caches btrfs: remove useless 'fail_unlock' label from btrfs_csum_file_blocks() btrfs: do not ignore error from btrfs_next_leaf() when inserting checksums btrfs: make checksum item extension more efficient btrfs: fix corrupt log due to concurrent fsync of inodes with shared extents btrfs: unexport btrfs_compress_set_level() btrfs: simplify iget helpers ... |
||
Linus Torvalds
|
8eeae5bae1 |
(More) new code for 5.8:
- Introduce DONTCACHE flags for dentries and inodes. This hint will cause the VFS to drop the associated objects immediately after the last put, so that we can change the file access mode (DAX or page cache) on the fly. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEUzaAxoMeQq6m2jMV+H93GTRKtOsFAl68FowACgkQ+H93GTRK tOtNzA/9FkXXQYAlTWK/toHfJV8DQT/Kx1fvf8Ng0EphBUQa/rNzlcMzFg7Gw5Cs Rzis96+xj4q//iseLZN5LLxaoxqT2Qipza0GWCMJpQG/4wTWM0Ar7BnG/Vc87lUV F0mXnILZOUMFzr8Zj9q4ka6UGRTDSXXtwNXqBuPpIZyVbMQvPtXHhM3lWV5RUQwm fznBxDAEGoVXiyID2OrZD5tS4BMd16uFWAWLjWphpcy18zfC7zp0+0MQik4v/9oi 54pZdtPT9/dQOu/BI8tfLP45XzZ6f++gXy2p/G96dy7ism1u40ML77ojEkadVVFe Bf7t+EswNxrx/em/ugWbcJDtrxttSqU47g2AXsbJJB2+aHCih6Cfid41lMyRvlhR d4cumoteX7IF/PpT3YaKHWQBo5OxHK0a2CBPd6czrCBw5yXrEUagdmw1XQ//bw5e FRCg4eMcEW0UgINvBCHWdWRx6VaL8ngMMsflVJ/lY7FeVvM10ZYRFzJoryoebSPm /yWcoHFsTPC8K0nWVmbwPazVE19I0g4y6Wiw39YvZDzZRzM9PcQI4DBxQcab+Va/ FPfXEXkpz0GiC6zjs/QfkPtg60GI1IG5Um4JUzdv6ce1P0p1rGcu5WiNYearahE7 7V/44WGIEAd4NP7R0JPTI0Fqv7v6uuDzMoCp7YDn8gE4FCJTt6M= =ebl3 -----END PGP SIGNATURE----- Merge tag 'vfs-5.8-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux Pull DAX updates part two from Darrick Wong: "This time around, we're hoisting the DONTCACHE flag from XFS into the VFS so that we can make the incore DAX mode changes become effective sooner. We can't change the file data access mode on a live inode because we don't have a safe way to change the file ops pointers. The incore state change becomes effective at inode loading time, which can happen if the inode is evicted. Therefore, we're making it so that filesystems can ask the VFS to evict the inode as soon as the last holder drops. The per-fs changes to make this call this will be in subsequent pull requests from Ted and myself. Summary: - Introduce DONTCACHE flags for dentries and inodes. This hint will cause the VFS to drop the associated objects immediately after the last put, so that we can change the file access mode (DAX or page cache) on the fly" * tag 'vfs-5.8-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: fs: Introduce DCACHE_DONTCACHE fs: Lift XFS_IDONTCACHE to the VFS layer |
||
Linus Torvalds
|
96ed320d52 |
New code for 5.8:
- Clean up io_is_direct. - Add a new statx flag to indicate when file data access is being done via DAX (as opposed to the page cache). - Update the documentation for how system administrators and application programmers can take advantage of the (still experimental DAX) feature. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEUzaAxoMeQq6m2jMV+H93GTRKtOsFAl6wO7UACgkQ+H93GTRK tOtEaw//eShC2YE0S+GS7ihQ3x71PJa4Is0VZOIpTHl01aqMSegwB3QbDQbVUhn1 TzLhUw4pZsz3R9GbUOrfHOYRt+aSP2t0WNhIulDeBp41CYJQSaFt85KnfM9hoBOi VYssum3Lu7/6ReKrDD/mumzWYkts+JDCuXRmt7nOQeZJVNXOCBBbvN354V4/IKLY wB4Wnaq3f3gYniXYW/23aCX+kocaOIUZtK6aFKyeD0KvfP5toDlpw1cBVMoM9CmO bmEy8vKf4lgFZDLeDMqmWOecMgEH5h0baN5Psu13WuDCiCd6maBl0KpxVpVlwsep yVz6mMbZjmLOJ2lqyw+lZb+XicD+K3yRVSTGKxV3VbuRjeX9tjVG5Im13VesNvJB WWJq/CkOU8W0Zs7Q5RbUDGbFFWDJSI/OStAU+UeuWvL9Gndv7hqv6H904qbPPtEu 4m4Y34ARzrEaKpkABKKwQ53cLClNxmmgUN9N3cXK3mk8idlX4zM3j6+HJYUxXTO+ fBjhOlyUy2KaWmzZoJp28QvaU4iegGmMSuRnQ9HAvXmdxUA2K6+wjS6LCZGh04vz z7SbzTBlo2kvsKdRMwJ306s2QA0/HvmKHHLI+p8OQANce9hjhE3XdJayzhitd0fk k0D/y8OY+fbCSgI8C4g66lA8Zf2sos/ulD0QTTNBPfU2rRWkKUc= =rS19 -----END PGP SIGNATURE----- Merge tag 'vfs-5.8-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux Pull DAX updates part one from Darrick Wong: "After many years of LKML-wrangling about how to enable programs to query and influence the file data access mode (DAX) when a filesystem resides on storage devices such as persistent memory, Ira Weiny has emerged with a proposed set of standard behaviors that has not been shot down by anyone! We're more or less standardizing on the current XFS behavior and adapting ext4 to do the same. This is the first of a handful pull requests that will make ext4 and XFS present a consistent interface for user programs that care about DAX. We add a statx attribute that programs can check to see if DAX is enabled on a particular file. Then, we update the DAX documentation to spell out the user-visible behaviors that filesystems will guarantee (until the next storage industry shakeup). The on-disk inode flag has been in XFS for a few years now. Summary: - Clean up io_is_direct. - Add a new statx flag to indicate when file data access is being done via DAX (as opposed to the page cache). - Update the documentation for how system administrators and application programmers can take advantage of the (still experimental DAX) feature" Link: https://lore.kernel.org/lkml/20200505002016.1085071-1-ira.weiny@intel.com/ * tag 'vfs-5.8-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: Documentation/dax: Update Usage section fs/stat: Define DAX statx attribute fs: Remove unneeded IS_DAX() check in io_is_direct() |
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Linus Torvalds
|
16d91548d1 |
New code for 5.8:
- Various cleanups to remove dead code, unnecessary conditionals, asserts, etc. - Fix a linker warning caused by xfs stuffing '-g' into CFLAGS redundantly. - Tighten up our dmesg logging to ensure that everything is prefixed with 'XFS' for easier grepping. - Kill a bunch of typedefs. - Refactor the deferred ops code to reduce indirect function calls. - Increase type-safety with the deferred ops code. - Make the DAX mount options a tri-state. - Fix some error handling problems in the inode flush code and clean up other inode flush warts. - Refactor log recovery so that each log item recovery functions now live with the other log item processing code. - Fix some SPDX forms. - Fix quota counter corruption if the fs crashes after running quotacheck but before any dquots get logged. - Don't fail metadata verification on zero-entry attr leaf blocks, since they're just part of the disk format now due to a historic lack of log atomicity. - Don't allow SWAPEXT between files with different [ugp]id when quotas are enabled. - Refactor inode fork reading and verification to run directly from the inode-from-disk function. This means that we now actually guarantee that _iget'ted inodes are totally verified and ready to go. - Move the incore inode fork format and extent counts to the ifork structure. - Scalability improvements by reducing cacheline pingponging in struct xfs_mount. - More scalability improvements by removing m_active_trans from the hot path. - Fix inode counter update sanity checking to run /only/ on debug kernels. - Fix longstanding inconsistency in what error code we return when a program hits project quota limits (ENOSPC). - Fix group quota returning the wrong error code when a program hits group quota limits. - Fix per-type quota limits and grace periods for group and project quotas so that they actually work. - Allow extension of individual grace periods. - Refactor the non-reclaim inode radix tree walking code to remove a bunch of stupid little functions and straighten out the inconsistent naming schemes. - Fix a bug in speculative preallocation where we measured a new allocation based on the last extent mapping in the file instead of looking farther for the last contiguous space allocation. - Force delalloc writes to unwritten extents. This closes a stale disk contents exposure vector if the system goes down before the write completes. - More lockdep whackamole. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEUzaAxoMeQq6m2jMV+H93GTRKtOsFAl7OjhgACgkQ+H93GTRK tOuGeBAApuP9ohtvrJT9FW7U+OrRsK3lw/3R+MEYpJu8GKLpGbJ6j+SKrTHxxLvu Rp63YLIlHBOz2rNa4brm/wW8gGJIGXOnGpuiGq0Irl01xEmwqmjOLfLcYkYhno1E i+rG0PiKYZeo/xhLtTKGl+NAwHHxmbOmxUtYHnbinHtPzDyYLQ0wff+oUkmQ7ydg bMYFMXohoJ3Pc5UjmUrCuJj1cvYOUwl0P4LGKiq5Zud61AkBCSskEpk+oo5xFcEX JJc1xkn5MPi+oGpSYqhnSZ6aSjwp53/i44O9volp5vCRXXv1eLVni2u/ScZ85L72 HXxoDyuZOUupirIfMBQFHsazDGPGyFIqtPhGlXoTJjrwX+ymimY6CU/0e+Xu9DEu krlxajfUssH30zyG2q/2TaxslU35CROH6hVBXFe0Y5cEEsOIf2aOpErUhhw2YyS7 onN9gb2NBBQdYtHqIMwsbhcgq60g5H6JfGriB5dJimXXLmpuTfAREGCY2AqIoB1x +8QFod0WwsMn6FYhi/UpZjC9qp/WTvojBUEt8Ci3ketUFwO1CLf9qm6Hj71RL3fs fCEDHx/ZMMft7Bdbf36lICoMAhF/KfNcRn1PsQdpW4LY1Aml/7qjFNZthSVRDW+E rhzNu+RIzGEQsSemBvccRaaTP3HFqN+qPATu2K0sALaa1LRFxzQ= =/NYc -----END PGP SIGNATURE----- Merge tag 'xfs-5.8-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux Pull xfs updates from Darrick Wong: "Most of the changes this cycle are refactoring of existing code in preparation for things landing in the future. We also fixed various problems and deficiencies in the quota implementation, and (I hope) the last of the stale read vectors by forcing write allocations to go through the unwritten state until the write completes. Summary: - Various cleanups to remove dead code, unnecessary conditionals, asserts, etc. - Fix a linker warning caused by xfs stuffing '-g' into CFLAGS redundantly. - Tighten up our dmesg logging to ensure that everything is prefixed with 'XFS' for easier grepping. - Kill a bunch of typedefs. - Refactor the deferred ops code to reduce indirect function calls. - Increase type-safety with the deferred ops code. - Make the DAX mount options a tri-state. - Fix some error handling problems in the inode flush code and clean up other inode flush warts. - Refactor log recovery so that each log item recovery functions now live with the other log item processing code. - Fix some SPDX forms. - Fix quota counter corruption if the fs crashes after running quotacheck but before any dquots get logged. - Don't fail metadata verification on zero-entry attr leaf blocks, since they're just part of the disk format now due to a historic lack of log atomicity. - Don't allow SWAPEXT between files with different [ugp]id when quotas are enabled. - Refactor inode fork reading and verification to run directly from the inode-from-disk function. This means that we now actually guarantee that _iget'ted inodes are totally verified and ready to go. - Move the incore inode fork format and extent counts to the ifork structure. - Scalability improvements by reducing cacheline pingponging in struct xfs_mount. - More scalability improvements by removing m_active_trans from the hot path. - Fix inode counter update sanity checking to run /only/ on debug kernels. - Fix longstanding inconsistency in what error code we return when a program hits project quota limits (ENOSPC). - Fix group quota returning the wrong error code when a program hits group quota limits. - Fix per-type quota limits and grace periods for group and project quotas so that they actually work. - Allow extension of individual grace periods. - Refactor the non-reclaim inode radix tree walking code to remove a bunch of stupid little functions and straighten out the inconsistent naming schemes. - Fix a bug in speculative preallocation where we measured a new allocation based on the last extent mapping in the file instead of looking farther for the last contiguous space allocation. - Force delalloc writes to unwritten extents. This closes a stale disk contents exposure vector if the system goes down before the write completes. - More lockdep whackamole" * tag 'xfs-5.8-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (129 commits) xfs: more lockdep whackamole with kmem_alloc* xfs: force writes to delalloc regions to unwritten xfs: refactor xfs_iomap_prealloc_size xfs: measure all contiguous previous extents for prealloc size xfs: don't fail unwritten extent conversion on writeback due to edquot xfs: rearrange xfs_inode_walk_ag parameters xfs: straighten out all the naming around incore inode tree walks xfs: move xfs_inode_ag_iterator to be closer to the perag walking code xfs: use bool for done in xfs_inode_ag_walk xfs: fix inode ag walk predicate function return values xfs: refactor eofb matching into a single helper xfs: remove __xfs_icache_free_eofblocks xfs: remove flags argument from xfs_inode_ag_walk xfs: remove xfs_inode_ag_iterator_flags xfs: remove unused xfs_inode_ag_iterator function xfs: replace open-coded XFS_ICI_NO_TAG xfs: move eofblocks conversion function to xfs_ioctl.c xfs: allow individual quota grace period extension xfs: per-type quota timers and warn limits xfs: switch xfs_get_defquota to take explicit type ... |
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Linus Torvalds
|
d9afbb3509 |
Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull lockdown update from James Morris: "An update for the security subsystem to allow unprivileged users to see the status of the lockdown feature. From Jeremy Cline" Also an added comment to describe CAP_SETFCAP. * 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: capabilities: add description for CAP_SETFCAP lockdown: Allow unprivileged users to see lockdown status |
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Linus Torvalds
|
f41030a20b |
selinux/stable-5.8 PR 20200601
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Linus Torvalds
|
9d99b1647f |
audit/stable-5.8 PR 20200601
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Linus Torvalds
|
91681e8480 |
One patch for suppressing coccicheck's warning.
tomoyo: use true for bool variable security/tomoyo/common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAABAgAGBQJe1Gl6AAoJEEJfEo0MZPUqLeEQAIzmGMKXvt1eFtJzpBWDJe6K Z9IPCZ2LvNKuY/Ph8pDhv49PzhbBwpyW/z9ixLjShZXfqPPUkhepBbsM5HU0IgbQ bAUGFEd2YTYKZmLArVghzP9jxaKohUnU4d6XsEzvXdcZ9r5yZuTf3QnTlM+DI6Ht 11tOp8ybG/D1y1LsuLvDvSq4Z7y45ZE6aGD/JosjrIjJTsXqiLmbPvC5f2XL3/jH 7B0i5QAyv4egj4YtWwY7kY0mLj/6U596pSCakalyvJV30L3r42LddVwSN14uvKxY K+OyVJ23B7ytqYynKQVLleY70fhoN3v52D20BQ/IpFkgvD9wMjXariLrNcJPGcPH vA/iZZ/Bawc2XUIB5a2Q7K2TjiDQa2RMTJCWouEJm67ybaG+cDnmn/3OG9YXR5Yi joJ7F9eIXWtINee8lE9kRzSHsDqA06bYkY+MncoLtzXhzOfFDbrKIoNiRnyuI0qb Rr+AUCCigcEjQFz0bc/I3Z+Ab94BaZovO0iELQvsdiMtnvA4wzmG8zddHUOH089z UcGEXMknut6ioMZqZWt+FDd4Is5oeqySfv1XvXEY6bui5qbVtXNxfZSj6HctvzJX AtJ8/9Tuf/82e5Fs1Sqmzo1hKE4qi8VJWdAGCe2dwcwdgR1vrbimDUMvg0DomAIf +Ap0aHQMV5b3pjbMuq91 =VyNS -----END PGP SIGNATURE----- Merge tag 'tomoyo-pr-20200601' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1 Pull tomoyo update from Tetsuo Handa: "One patch for suppressing coccicheck's warning" * tag 'tomoyo-pr-20200601' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1: tomoyo: use true for bool variable |
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Stefan Hajnoczi
|
56f2e3b7d8 |
capabilities: add description for CAP_SETFCAP
Document the purpose of CAP_SETFCAP. For some reason this capability had no description while the others did. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: James Morris <jmorris@namei.org> |
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Linus Torvalds
|
1ee08de1e2 |
for-5.8/io_uring-2020-06-01
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Linus Torvalds
|
bce159d734 |
for-5.8/drivers-2020-06-01
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Linus Torvalds
|
750a02ab8d |
for-5.8/block-2020-06-01
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Hugh Dickins
|
1966391fa5 |
mm/migrate.c: attach_page_private already does the get_page
Just finished bisecting mmotm, to find why a test which used to take
four minutes now took more than an hour: the __buffer_migrate_page()
cleanup left behind a get_page() which attach_page_private() now does.
Fixes:
|
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Linus Torvalds
|
faa392181a |
drm pull for 5.8-rc1
core: - uapi: error out EBUSY when existing master - uapi: rework SET/DROP MASTER permission handling - remove drm_pci.h - drm_pci* are now legacy - introduced managed DRM resources - subclassing support for drm_framebuffer - simple encoder helper - edid improvements - vblank + writeback documentation improved - drm/mm - optimise tree searches - port drivers to use devm_drm_dev_alloc dma-buf: - add flag for p2p buffer support mst: - ACT timeout improvements - remove drm_dp_mst_has_audio - don't use 2nd TX slot - spec recommends against it bridge: - dw-hdmi various improvements - chrontel ch7033 support - fix stack issues with old gcc hdmi: - add unpack function for drm infoframe fbdev: - misc fbdev driver fixes i915: - uapi: global sseu pinning - uapi: OA buffer polling - uapi: remove generated perf code - uapi: per-engine default property values in sysfs - Tigerlake GEN12 enabled. - Lots of gem refactoring - Tigerlake enablement patches - move to drm_device logging - Icelake gamma HW readout - push MST link retrain to hotplug work - bandwidth atomic helpers - ICL fixes - RPS/GT refactoring - Cherryview full-ppgtt support - i915 locking guidelines documented - require linear fb stride to be 512 multiple on gen9 - Tigerlake SAGV support amdgpu: - uapi: encrypted GPU memory handling - uapi: add MEM_SYNC IB flag - p2p dma-buf support - export VRAM dma-bufs - FRU chip access support - RAS/SR-IOV updates - Powerplay locking fixes - VCN DPG (powergating) enablement - GFX10 clockgating fixes - DC fixes - GPU reset fixes - navi SDMA fix - expose FP16 for modesetting - DP 1.4 compliance fixes - gfx10 soft recovery - Improved Critical Thermal Faults handling - resizable BAR on gmc10 amdkfd: - uapi: GWS resource management - track GPU memory per process - report PCI domain in topology radeon: - safe reg list generator fixes nouveau: - HD audio fixes on recent systems - vGPU detection (fail probe if we're on one, for now) - Interlaced mode fixes (mostly avoidance on Turing, which doesn't support it) - SVM improvements/fixes - NVIDIA format modifier support - Misc other fixes. adv7511: - HDMI SPDIF support ast: - allocate crtc state size - fix double assignment - fix suspend bochs: - drop connector register cirrus: - move to tiny drivers. exynos: - fix imported dma-buf mapping - enable runtime PM - fixes and cleanups mediatek: - DPI pin mode swap - config mipi_tx current/impedance lima: - devfreq + cooling device support - task handling improvements - runtime PM support pl111: - vexpress init improvements - fix module auto-load rcar-du: - DT bindings conversion to YAML - Planes zpos sanity check and fix - MAINTAINERS entry for LVDS panel driver mcde: - fix return value mgag200: - use managed config init stm: - read endpoints from DT vboxvideo: - use PCI managed functions - drop WC mtrr vkms: - enable cursor by default rockchip: - afbc support virtio: - various cleanups qxl: - fix cursor notify port hisilicon: - 128-byte stride alignment fix sun4i: - improved format handling -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJe1edsAAoJEAx081l5xIa+bKEQAJAZv/8OMM2rx+p+GyKgrNpl ihTX/oyToy8dw97s1kWF7V5kKU+qjF8aWlKoPS0xovzaMAzYSFz9FRNEUgqtTXMI zIAzSXioqP21oL9/ZTHcXDULtz8Gk3uiPomgXMWLlNBdt3X5qvCwsmPRIYSwG0GJ 00VCvxDbVxGSM3wzcvbfyRwHCq3SrFvIusXv5jHnnxEFGH0C7Mj2/FLYMKLNjvli Q8VEI2wQPZj1QdA8fLFVneIQsR6YUSko9OfFMANP8VJGpPMnUkvVxTJ5ACGJspvn U/h6NYqJeUU2Y3BSKqtjIC3a1LY51tp5tL9q4H9TD1hqMckt6F2V7T2IeFU8i6+V YzUsSiT4q1xB+uiFVcgopx2hyIp8INOEyWrVdYgw2JviROeRD+pDHvJd13ZNMnTe GvLWQ/PfBFrcz8eligjiYjOf66ZTU+j/rivaOBFyrs9gdlsaEW2QRurFrcNX+0lZ kDbLsIFjhYnPXsvHP87x4BuQCKQIEh8wWuxXuJjunBPdqVrJyltZWbBiKO571b5/ BtX6xj6ztUOffR2RdiVanzY546I2hEi7SHMUuWnMqXsOV46GBN0QvlpZad/47n9x ZUy8HDDD0/qWuGwvPOJGIeAnUteWge9AhWXTeN5+1h5m+QEOzYkPKqC3Hp8TW1pM gToTWgAhnu731fhzLWyt =H7IS -----END PGP SIGNATURE----- Merge tag 'drm-next-2020-06-02' of git://anongit.freedesktop.org/drm/drm Pull drm updates from Dave Airlie: "Highlights: - Core DRM had a lot of refactoring around managed drm resources to make drivers simpler. - Intel Tigerlake support is on by default - amdgpu now support p2p PCI buffer sharing and encrypted GPU memory Details: core: - uapi: error out EBUSY when existing master - uapi: rework SET/DROP MASTER permission handling - remove drm_pci.h - drm_pci* are now legacy - introduced managed DRM resources - subclassing support for drm_framebuffer - simple encoder helper - edid improvements - vblank + writeback documentation improved - drm/mm - optimise tree searches - port drivers to use devm_drm_dev_alloc dma-buf: - add flag for p2p buffer support mst: - ACT timeout improvements - remove drm_dp_mst_has_audio - don't use 2nd TX slot - spec recommends against it bridge: - dw-hdmi various improvements - chrontel ch7033 support - fix stack issues with old gcc hdmi: - add unpack function for drm infoframe fbdev: - misc fbdev driver fixes i915: - uapi: global sseu pinning - uapi: OA buffer polling - uapi: remove generated perf code - uapi: per-engine default property values in sysfs - Tigerlake GEN12 enabled. - Lots of gem refactoring - Tigerlake enablement patches - move to drm_device logging - Icelake gamma HW readout - push MST link retrain to hotplug work - bandwidth atomic helpers - ICL fixes - RPS/GT refactoring - Cherryview full-ppgtt support - i915 locking guidelines documented - require linear fb stride to be 512 multiple on gen9 - Tigerlake SAGV support amdgpu: - uapi: encrypted GPU memory handling - uapi: add MEM_SYNC IB flag - p2p dma-buf support - export VRAM dma-bufs - FRU chip access support - RAS/SR-IOV updates - Powerplay locking fixes - VCN DPG (powergating) enablement - GFX10 clockgating fixes - DC fixes - GPU reset fixes - navi SDMA fix - expose FP16 for modesetting - DP 1.4 compliance fixes - gfx10 soft recovery - Improved Critical Thermal Faults handling - resizable BAR on gmc10 amdkfd: - uapi: GWS resource management - track GPU memory per process - report PCI domain in topology radeon: - safe reg list generator fixes nouveau: - HD audio fixes on recent systems - vGPU detection (fail probe if we're on one, for now) - Interlaced mode fixes (mostly avoidance on Turing, which doesn't support it) - SVM improvements/fixes - NVIDIA format modifier support - Misc other fixes. adv7511: - HDMI SPDIF support ast: - allocate crtc state size - fix double assignment - fix suspend bochs: - drop connector register cirrus: - move to tiny drivers. exynos: - fix imported dma-buf mapping - enable runtime PM - fixes and cleanups mediatek: - DPI pin mode swap - config mipi_tx current/impedance lima: - devfreq + cooling device support - task handling improvements - runtime PM support pl111: - vexpress init improvements - fix module auto-load rcar-du: - DT bindings conversion to YAML - Planes zpos sanity check and fix - MAINTAINERS entry for LVDS panel driver mcde: - fix return value mgag200: - use managed config init stm: - read endpoints from DT vboxvideo: - use PCI managed functions - drop WC mtrr vkms: - enable cursor by default rockchip: - afbc support virtio: - various cleanups qxl: - fix cursor notify port hisilicon: - 128-byte stride alignment fix sun4i: - improved format handling" * tag 'drm-next-2020-06-02' of git://anongit.freedesktop.org/drm/drm: (1401 commits) drm/amd/display: Fix potential integer wraparound resulting in a hang drm/amd/display: drop cursor position check in atomic test drm/amdgpu: fix device attribute node create failed with multi gpu drm/nouveau: use correct conflicting framebuffer API drm/vblank: Fix -Wformat compile warnings on some arches drm/amdgpu: Sync with VM root BO when switching VM to CPU update mode drm/amd/display: Handle GPU reset for DC block drm/amdgpu: add apu flags (v2) drm/amd/powerpay: Disable gfxoff when setting manual mode on picasso and raven drm/amdgpu: fix pm sysfs node handling (v2) drm/amdgpu: move gpu_info parsing after common early init drm/amdgpu: move discovery gfx config fetching drm/nouveau/dispnv50: fix runtime pm imbalance on error drm/nouveau: fix runtime pm imbalance on error drm/nouveau: fix runtime pm imbalance on error drm/nouveau/debugfs: fix runtime pm imbalance on error drm/nouveau/nouveau/hmm: fix migrate zero page to GPU drm/nouveau/nouveau/hmm: fix nouveau_dmem_chunk allocations drm/nouveau/kms/nv50-: Share DP SST mode_valid() handling with MST drm/nouveau/kms/nv50-: Move 8BPC limit for MST into nv50_mstc_get_modes() ... |
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Linus Torvalds
|
cfa3b8068b |
hmm related patches for 5.8
This series adds a selftest for hmm_range_fault() and several of the DEVICE_PRIVATE migration related actions, and another simplification for hmm_range_fault()'s API. - Simplify hmm_range_fault() with a simpler return code, no HMM_PFN_SPECIAL, and no customizable output PFN format - Add a selftest for hmm_range_fault() and DEVICE_PRIVATE related functionality -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfB7FMLh+8QxL+6i3OG33FX4gmxoFAl7VQr8ACgkQOG33FX4g mxrpcg/+O+oZ2p8FDTZi/0BTaU0crUiKwJngmmv78UuvD8nzhOZ0fkhK2lsXn9Uo 70lYbfDUSX2TbReP7y39VArW0v+Bj7wo9/7AZ+R2o5A0ajC6kccjGdnb7uEc3L6v CR+uumRYf/ZNz13cbuRBbYEz477DGnz+3vhBb4FLNTFj9XiNAC61jA1WUI0ep6x3 lDrkhDatqmdBJ+EqZDMq2+UH+lWbkptQT7hPqgEp6o7FqdnySxRd+rT3hALz5wNP fbryfWXM7V1eh7Kxr2mBJJqIkgbdhGLj2yLl1Iz11BbG6u7AT20r23WTvJ7hUCyt 18574twdltZ81gheqqN7KVYYAo+5seMfP14QdthqzzBMo3pOeLG0JMVqQNisDPgn Tf4lWF/GR7ajKxyRbLdvUgRE7pFQ9VMAiP86GoIpBFmSZQQDwcecnoYxg60zsTwR yuf60gopfNsSWNmDqKT3td12PQyFQYHYT6ue1eW6Rb9P+yA++tZaGkvGFn7kHeNV ZeUqsKEy6a9l6cDrFzNmsCcdNZg/qmw9mKFfa/4RRulU5jlskt/e52NiLaLU2rsr 0Tot3j5tMufLLorZPprMI3Z/M9ohVAS5DkX6ttcZDs5v0iGQEUOOnq0cXmwlJQ9I 0CHr2ImjiDr9v2fS+5ixaRNSHfnQWnHxcqq79UZiTjtPW1Daauo= =twev -----END PGP SIGNATURE----- Merge tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma Pull hmm updates from Jason Gunthorpe: "This series adds a selftest for hmm_range_fault() and several of the DEVICE_PRIVATE migration related actions, and another simplification for hmm_range_fault()'s API. - Simplify hmm_range_fault() with a simpler return code, no HMM_PFN_SPECIAL, and no customizable output PFN format - Add a selftest for hmm_range_fault() and DEVICE_PRIVATE related functionality" * tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: MAINTAINERS: add HMM selftests mm/hmm/test: add selftests for HMM mm/hmm/test: add selftest driver for HMM mm/hmm: remove the customizable pfn format from hmm_range_fault mm/hmm: remove HMM_PFN_SPECIAL drm/amdgpu: remove dead code after hmm_range_fault() mm/hmm: make hmm_range_fault return 0 or -1 |
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Linus Torvalds
|
194098915a |
PNP update for 5.8-rc1
Replace a zero-length array with a flexible-array (Gustavo A. R. Silva). -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAl7VGx8SHHJqd0Byand5 c29ja2kubmV0AAoJEILEb/54YlRxPG4P/i7HmvEzcKD2Bi2oNscTluGa3e6sOCDm d3O8dBVgXjF3cVEJUR6/gs5wct8z4NGgVdK5+ms0AVkZloSrGD9eFykZcJFf0j05 z6oJXIQNPWRcdOah40lUm1u99iPBRQ5WjRs97+/O/3rm5NiBJUukJ8RApleD9Tue ANymVze8Ob06ZyRXrhxJ/gcbGjoaeRO0sGQDBfguQ3EWqzm9bemtmUOIrOxbbY8Z jjkojrT8AW76POMomsfwbPlrmXn7cWozTpwqMKmTaBjiBxpCtcRtMmUBd7jLCoXI 58d9bsIT3q4p9KGl0Ks6JXFmFYaIiY0wivKa1U5Ku7lveHdf7C76clY0e7AFoTxN doSf45ABq42wFKOroE9bsoJw4XpNuCtL9/EWdiDK8A59F4fMKYx1G9oscL0MADiz AvWdHInxejZDChCDRi2pobOKFXFwoF+PseAT0bXfwu8gumxqdvVaxilikZTCJdzU yhkv2cf5sib1eXuQAYEHjgcY69BI9wCQ4jzLzcVtuykSzqXV2pRaWBpRy3zyCAeC QbGfro8+Emi9+A3LQqfTgq3TqvYnx4cP3eCOa5PzybYVrZPQjwdF0JF+NUishImF HjSmHP4VT3trsfXwxHjpsnfQuJpXOr0LLu0JbCgIeU3fcVczzsFhbGSojAEBYjWy owat+NBpbQ4R =xRvl -----END PGP SIGNATURE----- Merge tag 'pnp-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull PNP update from Rafael Wysocki: "Replace a zero-length array with a flexible-array (Gustavo A. R. Silva)" * tag 'pnp-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PNPBIOS: Replace zero-length array with flexible-array |
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Linus Torvalds
|
118d6e9829 |
ACPI updates for 5.8-rc1
- Update the ACPICA code in the kernel to upstream revision 20200430: * Move acpi_gbl_next_cmd_num definition (Erik Kaneda). * Ignore AE_ALREADY_EXISTS status in the disassembler when parsing create operators (Erik Kaneda). * Add status checks to the dispatcher (Erik Kaneda). * Fix required parameters for _NIG and _NIH (Erik Kaneda). * Make acpi_protocol_lengths static (Yue Haibing). - Fix ACPI table reference counting errors in several places, mostly in error code paths (Hanjun Guo). - Extend the Generic Event Device (GED) driver to support _Exx and _Lxx handler methods (Ard Biesheuvel). - Add new acpi_evaluate_reg() helper and modify the ACPI PCI hotplug code to use it (Hans de Goede). - Add new DPTF battery participant driver and make the DPFT power participant driver create more sysfs device attributes (Srinivas Pandruvada). - Improve the handling of memory failures in APEI (James Morse). - Add new blacklist entry for Acer TravelMate 5735Z to the backlight driver (Paul Menzel). - Add i2c address for thermal control to the PMIC driver (Mauro Carvalho Chehab). - Allow the ACPI processor idle driver to work on platforms with only one ACPI C-state present (Zhang Rui). - Fix kobject reference count leaks in error code paths in two places (Qiushi Wu). - Delete unused proc filename macros and make some symbols static (Pascal Terjan, Zheng Zengkai, Zou Wei). -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAl7VHb8SHHJqd0Byand5 c29ja2kubmV0AAoJEILEb/54YlRxVboQAIjYda2RhQANIlIvoEa+Qd2/FBd3HXgU Mv0LZ6y1xxxEZYeKne7zja1hzt5WetuZ1hZHGfg8YkXyrLqZGxfCIFbbhSA90BGG PGzFerGmOBNzB3I9SN6iQY7vSqoFHvQEV1PVh24d+aHWZqj2lnaRRq+GT54qbRLX /U3Hy5glFl8A/DCBP4cpoEjDr4IJHY68DathkDK2Ep2ybXV6B401uuqx8Su/OBd/ MQmJTYI1UK/RYBXfdzS9TIZahnkxBbU1cnLFy08Ve2mawl5YsHPEbvm77a0yX2M6 sOAerpgyzYNivAuOLpNIwhUZjpOY66nQuKAQaEl2cfRUkqt4nbmq7yDoH3d2MJLC /Ccz955rV2YyD1DtyV+PyT+HB+/EVwH/+UCZ+gsSbdHvOiwdFU6VaTc2eI1qq8K9 4m5eEZFrAMPlvTzj/xVxr2Hfw1lbm23J5B5n7sM5HzYbT6MUWRQpvfV4zM3jTGz0 rQd8JmcHVvZk/MV1mGrYHrN5TnGTLWpbS4Yv1lAQa6FP0N0NxzVud7KRfLKnCnJ1 vh5yzW2fCYmVulJpuqxJDfXSqNV7n40CFrIewSp6nJRQXnWpImqHwwiA8fl51+hC fBL72Ey08EHGFnnNQqbebvNglsodRWJddBy43ppnMHtuLBA/2GVKYf2GihPbpEBq NHtX+Rd3vlWW =xH3i -----END PGP SIGNATURE----- Merge tag 'acpi-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI updates from Rafael Wysocki: "These update the ACPICA code in the kernel to upstream revision 20200430, fix several reference counting errors related to ACPI tables, add _Exx / _Lxx support to the GED driver, add a new acpi_evaluate_reg() helper, add new DPTF battery participant driver and extend the DPFT power participant driver, improve the handling of memory failures in the APEI code, add a blacklist entry to the backlight driver, update the PMIC driver and the processor idle driver, fix two kobject reference count leaks, and make a few janitory changes. Specifics: - Update the ACPICA code in the kernel to upstream revision 20200430: - Move acpi_gbl_next_cmd_num definition (Erik Kaneda). - Ignore AE_ALREADY_EXISTS status in the disassembler when parsing create operators (Erik Kaneda). - Add status checks to the dispatcher (Erik Kaneda). - Fix required parameters for _NIG and _NIH (Erik Kaneda). - Make acpi_protocol_lengths static (Yue Haibing). - Fix ACPI table reference counting errors in several places, mostly in error code paths (Hanjun Guo). - Extend the Generic Event Device (GED) driver to support _Exx and _Lxx handler methods (Ard Biesheuvel). - Add new acpi_evaluate_reg() helper and modify the ACPI PCI hotplug code to use it (Hans de Goede). - Add new DPTF battery participant driver and make the DPFT power participant driver create more sysfs device attributes (Srinivas Pandruvada). - Improve the handling of memory failures in APEI (James Morse). - Add new blacklist entry for Acer TravelMate 5735Z to the backlight driver (Paul Menzel). - Add i2c address for thermal control to the PMIC driver (Mauro Carvalho Chehab). - Allow the ACPI processor idle driver to work on platforms with only one ACPI C-state present (Zhang Rui). - Fix kobject reference count leaks in error code paths in two places (Qiushi Wu). - Delete unused proc filename macros and make some symbols static (Pascal Terjan, Zheng Zengkai, Zou Wei)" * tag 'acpi-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits) ACPI: CPPC: Fix reference count leak in acpi_cppc_processor_probe() ACPI: sysfs: Fix reference count leak in acpi_sysfs_add_hotplug_profile() ACPI: GED: use correct trigger type field in _Exx / _Lxx handling ACPI: DPTF: Add battery participant driver ACPI: DPTF: Additional sysfs attributes for power participant driver ACPI: video: Use native backlight on Acer TravelMate 5735Z arm64: acpi: Make apei_claim_sea() synchronise with APEI's irq work ACPI: APEI: Kick the memory_failure() queue for synchronous errors mm/memory-failure: Add memory_failure_queue_kick() ACPI / PMIC: Add i2c address for thermal control ACPI: GED: add support for _Exx / _Lxx handler methods ACPI: Delete unused proc filename macros ACPI: hotplug: PCI: Use the new acpi_evaluate_reg() helper ACPI: utils: Add acpi_evaluate_reg() helper ACPI: debug: Make two functions static ACPI: sleep: Put the FACS table after using it ACPI: scan: Put SPCR and STAO table after using it ACPI: EC: Put the ACPI table after using it ACPI: APEI: Put the HEST table for error path ACPI: APEI: Put the error record serialization table for error path ... |
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Linus Torvalds
|
355ba37d75 |
Power management updates for 5.8-rc1
- Rework the system-wide PM driver flags to make them easier to understand and use and update their documentation (Rafael Wysocki, Alan Stern). - Allow cpuidle governors to be switched at run time regardless of the kernel configuration and update the related documentation accordingly (Hanjun Guo). - Improve the resume device handling in the user space hibernarion interface code (Domenico Andreoli). - Document the intel-speed-select sysfs interface (Srinivas Pandruvada). - Make the ACPI code handing suspend to idle print more debug messages to help diagnose issues with it (Rafael Wysocki). - Fix a helper routine in the cpufreq core and correct a typo in the struct cpufreq_driver kerneldoc comment (Rafael Wysocki, Wang Wenhu). - Update cpufreq drivers: * Make the intel_pstate driver start in the passive mode by default on systems without HWP (Rafael Wysocki). * Add i.MX7ULP support to the imx-cpufreq-dt driver and add i.MX7ULP to the cpufreq-dt-platdev blacklist (Peng Fan). * Convert the qoriq cpufreq driver to a platform one, make the platform code create a suitable device object for it and add platform dependencies to it (Mian Yousaf Kaukab, Geert Uytterhoeven). * Fix wrong compatible binding in the qcom driver (Ansuel Smith). * Build the omap driver by default for ARCH_OMAP2PLUS (Anders Roxell). * Add r8a7742 SoC support to the dt cpufreq driver (Lad Prabhakar). - Update cpuidle core and drivers: * Fix three reference count leaks in error code paths in the cpuidle core (Qiushi Wu). * Convert Qualcomm SPM to a generic cpuidle driver (Stephan Gerhold). * Fix up the execution order when entering a domain idle state in the PSCI driver (Ulf Hansson). - Fix a reference counting issue related to clock management and clean up two oddities in the PM-runtime framework (Rafael Wysocki, Andy Shevchenko). - Add ElkhartLake support to the Intel RAPL power capping driver and remove an unused local MSR definition from it (Jacob Pan, Sumeet Pawnikar). - Update devfreq core and drivers: * Replace strncpy() with strscpy() in the devfreq core and use lockdep asserts instead of manual checks for a locked mutex in it (Dmitry Osipenko, Krzysztof Kozlowski). * Add a generic imx bus scaling driver and make it register an interconnect device (Leonard Crestez, Gustavo A. R. Silva). * Make the cpufreq notifier in the tegra30 driver take boosting into account and delete an unuseful error message from that driver (Dmitry Osipenko, Markus Elfring). - Remove unneeded semicolon from the cpupower code (Zou Wei). -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAl7VGjwSHHJqd0Byand5 c29ja2kubmV0AAoJEILEb/54YlRx46gP/jGAXlddFEQswi6qUT3Cff0A9mb8CdcX dyKrjX4xxo/wtBIAwSN4achxrgse//ayo2dYTzWRDd31W9Azbv+5F+46XsDRz4hL pH29u/E66NMtFWnHCmt78NEJn0FzSa0YBC43ZzwFwKktCK9skYIpGN2z6iuXUBSX Q5GHqop3zvDsdKQFBGL62xvUw/AmOTPG7ohIZvqWBN2mbOqEqMcoFHT+aUF/NbLj +i14dvTH767eDZGRVASmXWQyljjaRWm+SIw4+m8zT1D1Y3d5IFObuMN+9RQl1Tif BYjkgJ2oDDMhCJLW7TBuJB+g7exiyaSQds3nMr2ZR+eZbJipICjU4eehNEKIUopU DM17tHQfnwZfS/7YbCx3vYQwLkNq37AJyXS9uqCAIFM+0n4xN4/mIVmgWYISLDTs 1v9olFxtwMRNpjGGQWPJAO7ebB8Zz9qhQv7pIkSQEfwp93/SzvlVf4vvruTeFN9J qqG60cDumXWAm+s43eQHJNn5nOd5ocWv0FBpo/cxqKbzxFVWwdB42Cm0SY+rK2ID uHdnc2DJcK2c78UVbz3Cmk4272foJt2zxchqjFXXAZPLrOsFfzmti4B28VxGxjmP LG3MhH5sdbF4yl/1aSC1Bnrt+PV9Lus6ut/VKhjwIpw8cqiXgpwSbMoDoaBd9UMQ ubGz2rplGAtB =APdj -----END PGP SIGNATURE----- Merge tag 'pm-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "These rework the system-wide PM driver flags, make runtime switching of cpuidle governors easier, improve the user space hibernation interface code, add intel-speed-select interface documentation, add more debug messages to the ACPI code handling suspend to idle, update the cpufreq core and drivers, fix a minor issue in the cpuidle core and update two cpuidle drivers, improve the PM-runtime framework, update the Intel RAPL power capping driver, update devfreq core and drivers, and clean up the cpupower utility. Specifics: - Rework the system-wide PM driver flags to make them easier to understand and use and update their documentation (Rafael Wysocki, Alan Stern). - Allow cpuidle governors to be switched at run time regardless of the kernel configuration and update the related documentation accordingly (Hanjun Guo). - Improve the resume device handling in the user space hibernarion interface code (Domenico Andreoli). - Document the intel-speed-select sysfs interface (Srinivas Pandruvada). - Make the ACPI code handing suspend to idle print more debug messages to help diagnose issues with it (Rafael Wysocki). - Fix a helper routine in the cpufreq core and correct a typo in the struct cpufreq_driver kerneldoc comment (Rafael Wysocki, Wang Wenhu). - Update cpufreq drivers: - Make the intel_pstate driver start in the passive mode by default on systems without HWP (Rafael Wysocki). - Add i.MX7ULP support to the imx-cpufreq-dt driver and add i.MX7ULP to the cpufreq-dt-platdev blacklist (Peng Fan). - Convert the qoriq cpufreq driver to a platform one, make the platform code create a suitable device object for it and add platform dependencies to it (Mian Yousaf Kaukab, Geert Uytterhoeven). - Fix wrong compatible binding in the qcom driver (Ansuel Smith). - Build the omap driver by default for ARCH_OMAP2PLUS (Anders Roxell). - Add r8a7742 SoC support to the dt cpufreq driver (Lad Prabhakar). - Update cpuidle core and drivers: - Fix three reference count leaks in error code paths in the cpuidle core (Qiushi Wu). - Convert Qualcomm SPM to a generic cpuidle driver (Stephan Gerhold). - Fix up the execution order when entering a domain idle state in the PSCI driver (Ulf Hansson). - Fix a reference counting issue related to clock management and clean up two oddities in the PM-runtime framework (Rafael Wysocki, Andy Shevchenko). - Add ElkhartLake support to the Intel RAPL power capping driver and remove an unused local MSR definition from it (Jacob Pan, Sumeet Pawnikar). - Update devfreq core and drivers: - Replace strncpy() with strscpy() in the devfreq core and use lockdep asserts instead of manual checks for a locked mutex in it (Dmitry Osipenko, Krzysztof Kozlowski). - Add a generic imx bus scaling driver and make it register an interconnect device (Leonard Crestez, Gustavo A. R. Silva). - Make the cpufreq notifier in the tegra30 driver take boosting into account and delete an unuseful error message from that driver (Dmitry Osipenko, Markus Elfring). - Remove unneeded semicolon from the cpupower code (Zou Wei)" * tag 'pm-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (51 commits) cpuidle: Fix three reference count leaks PM: runtime: Replace pm_runtime_callbacks_present() PM / devfreq: Use lockdep asserts instead of manual checks for locked mutex PM / devfreq: imx-bus: Fix inconsistent IS_ERR and PTR_ERR PM / devfreq: Replace strncpy with strscpy PM / devfreq: imx: Register interconnect device PM / devfreq: Add generic imx bus scaling driver PM / devfreq: tegra30: Delete an error message in tegra_devfreq_probe() PM / devfreq: tegra30: Make CPUFreq notifier to take into account boosting PM: hibernate: Restrict writes to the resume device PM: runtime: clk: Fix clk_pm_runtime_get() error path cpuidle: Convert Qualcomm SPM driver to a generic CPUidle driver ACPI: EC: PM: s2idle: Extend GPE dispatching debug message ACPI: PM: s2idle: Print type of wakeup debug messages powercap: RAPL: remove unused local MSR define PM: runtime: Make clear what we do when conditions are wrong in rpm_suspend() Documentation: admin-guide: pm: Document intel-speed-select PM: hibernate: Split off snapshot dev option PM: hibernate: Incorporate concurrency handling Documentation: ABI: make current_governer_ro as a candidate for removal ... |
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Linus Torvalds
|
a5a82e0a59 |
platform-drivers-x86 for v5.8-1
* Add a support of the media keys on the ASUS laptop UX325JA/UX425JA * ASUS WMI driver can now handle 2-in-1 models T100TA, T100CHI, T100HA, T200TA * Big refactoring of Intel SCU driver with Elkhart Lake support has been added * Slim Bootloarder firmware update signaling WMI driver has been added * Thinkpad ACPI driver can handle dual fan configuration on new P and X models * Touchscreen DMI driver has been extended to support - MP-man MPWIN895CL tablet - ONDA V891 v5 tablet - techBite Arc 11.6 - Trekstor Twin 10.1 - Trekstor Yourbook C11B - Vinga J116 * Virtual Button driver got a few fixes to detect mode of 2-in-1 tablet models * Intel Speed Select tools update * Plenty of small cleanups here and there The following is an automated git shortlog grouped by driver: acerhdf: - replace space by * in modalias New drivers: - Add Elkhart Lake SCU/PMC support - Add Slim Bootloader firmware update signaling driver asus-laptop: - Drop duplicate check for led_classdev_unregister() asus-nb-wmi: - Revert "Do not load on Asus T100TA and T200TA" - Do not load on Asus T100TA and T200TA asus-wmi: - Ignore WMI events with code 0x79 - Add support for SW_TABLET_MODE - Move asus_wmi_input_init and _exit lower in the file - Drop duplicate check for led_classdev_unregister() - Reserve more space for struct bias_args - remove redundant initialization of variable status dcdbas: - Check SMBIOS for protected buffer address dell-laptop: - don't register micmute LED if there is no token dell-wmi: - Ignore keyboard attached / detached events device property: - export set_secondary_fwnode() to modules eeepc-laptop: - Drop duplicate check for led_classdev_unregister() hp-wmi: - Introduce HPWMI_POWER_FW_OR_HW as convenient shortcut - Convert simple_strtoul() to kstrtou32() - Refactor postcode_store() to follow standard patterns intel_cht_int33fe: - Fix spelling issues - Switch to use acpi_dev_hid_uid_match() - Convert to use set_secondary_fwnode() - Convert software node array to group intel-hid: - Add a quirk to support HP Spectre X2 (2015) intel_mid_powerbtn: - Convert to use new SCU IPC API intel_pmc_core: - avoid unused-function warnings - Change Jasper Lake S0ix debug reg map back to ICL intel_pmc_ipc: - Convert to MFD - Move PCI IDs to intel_scu_pcidrv.c - Drop intel_pmc_ipc_command() - Start using SCU IPC intel_scu_ipc: - Add managed function to register SCU IPC - Introduce new SCU IPC API - Move legacy SCU IPC API to a separate header - Log more information if SCU IPC command fails - Split out SCU IPC functionality from the SCU driver intel_scu_ipcutil: - Convert to use new SCU IPC API intel-speed-select: - Fix speed-select-base-freq-properties output on CLX-N intel_telemetry: - Add telemetry_get_pltdata() - Convert to use new SCU IPC API intel-vbtn: - Only blacklist SW_TABLET_MODE on the 9 / "Laptop" chasis-type - Detect switch position before registering the input-device - Move detect_tablet_mode() to higher in the file - Fix probe failure on devices with only switches - Also handle tablet-mode switch on "Detachable" and "Portable" chassis-types - Do not advertise switches to userspace if they are not there - Split keymap into buttons and switches parts - Use acpi_evaluate_integer() ISST: - Increase timeout lg-laptop: - Drop duplicate check for led_classdev_unregister() MAINTAINERS: - Add me as maintainer of Intel SCU drivers - Update entry for Intel Broxton PMC driver Merges of immutable branches: - Merge branch 'for-next' - Merge branch 'ib-mfd-x86-usb-watchdog-v5.7' - Merge branch 'ib-pdx86-properties' mfd: - intel_soc_pmic_mrfld: Convert to use new SCU IPC API - intel_soc_pmic_bxtwc: Convert to use new SCU IPC API - intel_soc_pmic: Add SCU IPC member to struct intel_soc_pmic samsung-laptop: - Drop duplicate check for led_classdev_unregister() software node: - Allow register and unregister software node groups sony-laptop: - Make resuming thermal profile safer - SNC calls should handle BUFFER types thinkpad_acpi: - Replace custom approach by kstrtoint() - Use strndup_user() in dispatch_proc_write() - Replace next_cmd(&buf) with strsep(&buf, ",") - Drop duplicate check for led_classdev_unregister() - Remove always false 'value < 0' statement - Add support for dual fan control tools/power/x86/intel-speed-select: - Fix invalid core mask - Increase CPU count - Fix json perf-profile output output - Update version - Enable clos for turbo-freq enable - Fix CLX-N package information output - Check support status before enable - Change debug to error toshiba_acpi: - Drop duplicate check for led_classdev_unregister() touchscreen_dmi: - Update Trekstor Twin 10.1 entry - Add info for the Trekstor Yourbook C11B - Drop comma in terminator line - add Vinga J116 touchscreen - Add info for the ONDA V891 v5 tablet - Add touchscreen info for techBite Arc 11.6. - Add info for the MP-man MPWIN895CL tablet usb: - typec: mux: Convert the Intel PMC Mux driver to use new SCU IPC API watchdog: - iTCO: fix link error - intel-mid_wdt: Convert to use new SCU IPC API wmi: - Describe function parameters - Fix indentation in some cases - Replace UUID redefinitions by their originals x86/platform/intel-mid: - Add empty stubs for intel_scu_devices_[create|destroy]() -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEqaflIX74DDDzMJJtb7wzTHR8rCgFAl7WCcoACgkQb7wzTHR8 rCi+Pg//dDpMXTxCcXivHZPJHwuAxbwPeJRV9uDKKBSnKqfxyYu37oQf8AQiLTsL PZOAIiwlrXw0Jd+EH79zN2DyCujBg16B6mf4dx3fMK95OWhPoslofyKRwl8kOBP5 QRZVpuwo6ayKwXV3cyFwWjXyWYJFL7+J3x+jjBmufBsoDJTn9edOCUa3oeHG0BYB 4A91pVKwtfNqqdL/pwd+A9mEZrFJnVilyPRoxTipbpPJqvWQi9dYgb3wHKt/1NM3 xPNd1GQHCI0Of4NGChszY0XdN4SyxFuyLmn1mogYq82r084QA4pLROb0+VFD2npd DQ4jxJqOwQDtC3gm789OeN6bZ0qnkO9HBwEmzVH7rwiajZxGW7U5rCgNYBahlTgr gY4kXIBXyOCO2/bItmrSvWDNBvVxD/THCfL4Q/cn6bNTy4TLTHAl2psQcsXIBT6/ Z5SdmHMhxc80eDAOTtSJj0ODeDGvAgbV20n+X260FFAsefDBuXkYMHEaRBf9n2LJ 8k9tauXZ6JdIc4K8/K+BaVl761Okl6PJPMTL7JsFqueHpyzZS7WclCYH5QQ1iN56 10QzddSGp+4HfFFCG2cVkjXG2AnUgT3kQgEOHyLIxp6yKY1PghFXHTEmrLuheYum jK93qSva5tvvZzy9UejXXsIkDyg76zaIla3rmEEYAmgzPDawR9I= =pprB -----END PGP SIGNATURE----- Merge tag 'platform-drivers-x86-v5.8-1' of git://git.infradead.org/linux-platform-drivers-x86 Pull x86 platform driver updates from Andy Shevchenko: - Add a support of the media keys on the ASUS laptop UX325JA/UX425JA - ASUS WMI driver can now handle 2-in-1 models T100TA, T100CHI, T100HA, T200TA - Big refactoring of Intel SCU driver with Elkhart Lake support has been added - Slim Bootloarder firmware update signaling WMI driver has been added - Thinkpad ACPI driver can handle dual fan configuration on new P and X models - Touchscreen DMI driver has been extended to support - MP-man MPWIN895CL tablet - ONDA V891 v5 tablet - techBite Arc 11.6 - Trekstor Twin 10.1 - Trekstor Yourbook C11B - Vinga J116 - Virtual Button driver got a few fixes to detect mode of 2-in-1 tablet models - Intel Speed Select tools update - Plenty of small cleanups here and there * tag 'platform-drivers-x86-v5.8-1' of git://git.infradead.org/linux-platform-drivers-x86: (89 commits) platform/x86: dcdbas: Check SMBIOS for protected buffer address platform/x86: asus_wmi: Reserve more space for struct bias_args platform/x86: intel-vbtn: Only blacklist SW_TABLET_MODE on the 9 / "Laptop" chasis-type platform/x86: intel-hid: Add a quirk to support HP Spectre X2 (2015) platform/x86: touchscreen_dmi: Update Trekstor Twin 10.1 entry platform/x86: touchscreen_dmi: Add info for the Trekstor Yourbook C11B platform/x86: hp-wmi: Introduce HPWMI_POWER_FW_OR_HW as convenient shortcut platform/x86: hp-wmi: Convert simple_strtoul() to kstrtou32() platform/x86: hp-wmi: Refactor postcode_store() to follow standard patterns platform/x86: acerhdf: replace space by * in modalias platform/x86: ISST: Increase timeout tools/power/x86/intel-speed-select: Fix invalid core mask tools/power/x86/intel-speed-select: Increase CPU count tools/power/x86/intel-speed-select: Fix json perf-profile output output platform/x86: dell-wmi: Ignore keyboard attached / detached events platform/x86: dell-laptop: don't register micmute LED if there is no token platform/x86: thinkpad_acpi: Replace custom approach by kstrtoint() platform/x86: thinkpad_acpi: Use strndup_user() in dispatch_proc_write() platform/x86: thinkpad_acpi: Replace next_cmd(&buf) with strsep(&buf, ",") platform/x86: intel-vbtn: Detect switch position before registering the input-device ... |
||
Linus Torvalds
|
c5d6c13843 |
MMC core:
- Enable erase/discard/trim support for all (e)MMC/SD hosts - Export information through sysfs about enhanced RPMB support (eMMC v5.1+) - Align the initialization commands for SDIO cards - Fix SDIO initialization to prevent memory leaks and NULL pointer errors - Do not export undefined MMC_NAME/MODALIAS for SDIO cards - Export device/vendor field from common CIS for SDIO cards - Move SDIO IDs from functional drivers to the common SDIO header - Introduce the ->request_atomic() host ops MMC host: - Improve support for HW busy signaling for several hosts - Converting some DT bindings to the json-schema - meson-mx-sdhc: Add driver and DT doc for the Amlogic Meson SDHC controller - meson-mx-sdio: Run a soft reset to recover from timeout/CRC error - mmci: Convert to use mmc_regulator_set_vqmmc() - mmci_stm32_sdmmc: Fix a couple of DMA bugs - mmci_stm32_sdmmc: Fix power on issue - renesas,mmcif,sdhci: Document r8a7742 DT bindings - renesas_sdhi: Add support for M3-W ES1.2 and 1.3 revisions - renesas_sdhi: Improvements to the TAP selection - renesas_sdhi/tmio: Further fixup runtime PM management at ->remove() - sdhci: Introduce ops to dump vendor specific registers - sdhci-cadence: Fix PHY write sequence - sdhci-esdhc-imx: Improve tunings - sdhci-esdhc-imx: Enable GPIO card detect as system wakeup - sdhci-esdhc-imx: Add HS400 support for i.MX6SLL - sdhci-esdhc-mcf: Add driver for the Coldfire/M5441X esdhc controller - m68k: mcf5441x: Add platform data to enable esdhc mmc controller - sdhci-msm: Improve HS400 tuning - sdhci-msm: Dump vendor specific registers at error - sdhci-msm: Add support for DLL/DDR properties provided from DT - sdhci-msm: Add support for the sm8250 variant - sdhci-msm: Add support for DVFS by converting to dev_pm_opp_set_rate() - sdhci-of-arasan: Add support for Intel Keem Bay variant - sdhci-of-arasan: Add support for Xilinx Versal SD variant - sdhci-of-dwcmshc: Add support for system suspend/resume - sdhci-of-dwcmshc: Fix UHS signaling support - sdhci-of-esdhc: Fix tuning for eMMC HS400 mode - sdhci-pci-gli: Add Genesys Logic GL9763E support - sdhci-sprd: Add support for the ->request_atomic() ops - sdhci-tegra: Avoid reading autocal timeout values when not applicable MEMSTICK: - Minor trivial update. -----BEGIN PGP SIGNATURE----- iQJLBAABCgA1FiEEugLDXPmKSktSkQsV/iaEJXNYjCkFAl7UuIIXHHVsZi5oYW5z c29uQGxpbmFyby5vcmcACgkQ/iaEJXNYjCnzog/9GLeCHnaXan3uKU0NwWBpbiP0 RIqty/wYJpnWwL1J+otWLjVamuy/DSF4Bv4Fz+L+lXTzXWK+htXpWUragsvOeCj5 KHxSl/rASVo/zg5FOCCcq1+rYfRitAFqkWTYv0uFX+G/jcAcrspVJET3SfVYpVI4 fT2VP3zWXEh4yxJUCwnzqVPR3rsTdRob9csvpz2tuBRBUt0Vg+Kfc+NLi2EZzdsJ GDmiYOlch4Lx+8tUtRQQUX4MTVYMWCCkfL0RhYH8+kgcD8xK/LorN0Xb6FPTln95 hVPFTP3siojnj41UWQETqVnps7nsD+1ekLqehvNq6oLy7X4JDhWxu6bk3w7Gb2ox fk/L5x1ZFP+NFN8bvb3KPESfCKf4miuQ3fgRNad+FES7oqjN8ec55gB3oC2q5K8/ RrBFrtrcFTWBqxeYPxBMdBdj1tS7yfNPOavQg9iVGjzqJfnoMXfsKHrrTeZmGdZZ 4HudtV4BzSNUCmkvqho6TvFbLslfJ2a1RkV3tXijgbFknDoqD5rclm7KPp/ZQhH6 5ExnQpqd2EsHykJE2Zu4UxWW5f8TUBT2iBhVmTyQzrzijCtdmUkpbViaJXU0/yLD /k+MbiiJQ4ZTpcOFMeZ73J2WFU4xLyjY4magtWtBlPUZiONQy68zQ2GVdQ0AlXEt kbWvC7mMAYXiMJyAF9c= =1bkc -----END PGP SIGNATURE----- Merge tag 'mmc-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC updates from Ulf Hansson: "MMC core: - Enable erase/discard/trim support for all (e)MMC/SD hosts - Export information through sysfs about enhanced RPMB support (eMMC v5.1+) - Align the initialization commands for SDIO cards - Fix SDIO initialization to prevent memory leaks and NULL pointer errors - Do not export undefined MMC_NAME/MODALIAS for SDIO cards - Export device/vendor field from common CIS for SDIO cards - Move SDIO IDs from functional drivers to the common SDIO header - Introduce the ->request_atomic() host ops MMC host: - Improve support for HW busy signaling for several hosts - Converting some DT bindings to the json-schema - meson-mx-sdhc: Add driver and DT doc for the Amlogic Meson SDHC controller - meson-mx-sdio: Run a soft reset to recover from timeout/CRC error - mmci: Convert to use mmc_regulator_set_vqmmc() - mmci_stm32_sdmmc: Fix a couple of DMA bugs - mmci_stm32_sdmmc: Fix power on issue - renesas,mmcif,sdhci: Document r8a7742 DT bindings - renesas_sdhi: Add support for M3-W ES1.2 and 1.3 revisions - renesas_sdhi: Improvements to the TAP selection - renesas_sdhi/tmio: Further fixup runtime PM management at ->remove() - sdhci: Introduce ops to dump vendor specific registers - sdhci-cadence: Fix PHY write sequence - sdhci-esdhc-imx: Improve tunings - sdhci-esdhc-imx: Enable GPIO card detect as system wakeup - sdhci-esdhc-imx: Add HS400 support for i.MX6SLL - sdhci-esdhc-mcf: Add driver for the Coldfire/M5441X esdhc controller - m68k: mcf5441x: Add platform data to enable esdhc mmc controller - sdhci-msm: Improve HS400 tuning - sdhci-msm: Dump vendor specific registers at error - sdhci-msm: Add support for DLL/DDR properties provided from DT - sdhci-msm: Add support for the sm8250 variant - sdhci-msm: Add support for DVFS by converting to dev_pm_opp_set_rate() - sdhci-of-arasan: Add support for Intel Keem Bay variant - sdhci-of-arasan: Add support for Xilinx Versal SD variant - sdhci-of-dwcmshc: Add support for system suspend/resume - sdhci-of-dwcmshc: Fix UHS signaling support - sdhci-of-esdhc: Fix tuning for eMMC HS400 mode - sdhci-pci-gli: Add Genesys Logic GL9763E support - sdhci-sprd: Add support for the ->request_atomic() ops - sdhci-tegra: Avoid reading autocal timeout values when not applicable MEMSTICK: - Minor trivial update" * tag 'mmc-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (127 commits) dt-bindings: mmc: Convert sdhci-pxa to json-schema mmc: sdhci-msm: Clear tuning done flag while hs400 tuning mmc: core: Export device/vendor ids from Common CIS for SDIO cards mmc: core: Do not export MMC_NAME= and MODALIAS=mmc:block for SDIO cards mmc: sdhci-of-at91: fix CALCR register being rewritten mmc: sdhci-esdhc-imx: disable the CMD CRC check for standard tuning mmc: sdhci-esdhc-imx: fix the mask for tuning start point mmc: host: sdhci-esdhc-imx: add wakeup feature for GPIO CD pin mmc: mmci_sdmmc: fix DMA API warning max segment size mmc: mmci_sdmmc: fix DMA API warning overlapping mappings mmc: sdhci-of-arasan: Add support for Intel Keem Bay dt-bindings: mmc: arasan: Add compatible strings for Intel Keem Bay mmc: sdhci-cadence: fix PHY write mmc: sdio: Sort all SDIO IDs in common include file mmc: sdio: Fix Cypress SDIO IDs macros in common include file mmc: sdio: Move SDIO IDs from b43-sdio driver to common include file mmc: sdio: Move SDIO IDs from ath10k driver to common include file mmc: sdio: Move SDIO IDs from ath6kl driver to common include file mmc: sdio: Move SDIO IDs from smssdio driver to common include file mmc: sdio: Move SDIO IDs from btmtksdio driver to common include file ... |
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Linus Torvalds
|
94709049fb |
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton: "A few little subsystems and a start of a lot of MM patches. Subsystems affected by this patch series: squashfs, ocfs2, parisc, vfs. With mm subsystems: slab-generic, slub, debug, pagecache, gup, swap, memcg, pagemap, memory-failure, vmalloc, kasan" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (128 commits) kasan: move kasan_report() into report.c mm/mm_init.c: report kasan-tag information stored in page->flags ubsan: entirely disable alignment checks under UBSAN_TRAP kasan: fix clang compilation warning due to stack protector x86/mm: remove vmalloc faulting mm: remove vmalloc_sync_(un)mappings() x86/mm/32: implement arch_sync_kernel_mappings() x86/mm/64: implement arch_sync_kernel_mappings() mm/ioremap: track which page-table levels were modified mm/vmalloc: track which page-table levels were modified mm: add functions to track page directory modifications s390: use __vmalloc_node in stack_alloc powerpc: use __vmalloc_node in alloc_vm_stack arm64: use __vmalloc_node in arch_alloc_vmap_stack mm: remove vmalloc_user_node_flags mm: switch the test_vmalloc module to use __vmalloc_node mm: remove __vmalloc_node_flags_caller mm: remove both instances of __vmalloc_node_flags mm: remove the prot argument to __vmalloc_node mm: remove the pgprot argument to __vmalloc ... |
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Andrey Konovalov
|
4fba37586e |
kasan: move kasan_report() into report.c
The kasan_report() functions belongs to report.c, as it's a common functions that does error reporting. Reported-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Leon Romanovsky <leon@kernel.org> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Leon Romanovsky <leonro@mellanox.com> Link: http://lkml.kernel.org/r/78a81fde6eeda9db72a7fd55fbc33173a515e4b1.1589297433.git.andreyknvl@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jing Xia
|
86fea8b494 |
mm/mm_init.c: report kasan-tag information stored in page->flags
The pageflags_layout_usage shows incorrect message by means of mminit_loglevel when Kasan runs in the mode of software tag-based enabled with CONFIG_KASAN_SW_TAGS. This patch corrects it and reports kasan-tag information. Signed-off-by: Jing Xia <jing.xia@unisoc.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Chunyan Zhang <chunyan.zhang@unisoc.com> Cc: Orson Zhai <orson.zhai@unisoc.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Link: http://lkml.kernel.org/r/1586929370-10838-1-git-send-email-jing.xia.mail@gmail.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Kees Cook
|
9380ce246a |
ubsan: entirely disable alignment checks under UBSAN_TRAP
Commit |
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Andrey Konovalov
|
ca734cc67e |
kasan: fix clang compilation warning due to stack protector
KASAN uses a single cc-option invocation to disable both conserve-stack and stack-protector flags. The former flag is not present in Clang, which causes cc-option to fail, and results in stack-protector being enabled. Fix by using separate cc-option calls for each flag. Also collect all flags in a variable to avoid calling cc-option multiple times for different files. Reported-by: Qian Cai <cai@lca.pw> Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Marco Elver <elver@google.com> Link: http://lkml.kernel.org/r/c2f0c8e4048852ae014f4a391d96ca42d27e3255.1590779332.git.andreyknvl@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Joerg Roedel
|
7f0a002b5a |
x86/mm: remove vmalloc faulting
Remove fault handling on vmalloc areas, as the vmalloc code now takes care of synchronizing changes to all page-tables in the system. Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Andy Lutomirski <luto@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "H . Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Link: http://lkml.kernel.org/r/20200515140023.25469-8-joro@8bytes.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Joerg Roedel
|
73f693c3a7 |
mm: remove vmalloc_sync_(un)mappings()
These functions are not needed anymore because the vmalloc and ioremap mappings are now synchronized when they are created or torn down. Remove all callers and function definitions. Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Acked-by: Andy Lutomirski <luto@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "H . Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Link: http://lkml.kernel.org/r/20200515140023.25469-7-joro@8bytes.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Joerg Roedel
|
86cf69f1d8 |
x86/mm/32: implement arch_sync_kernel_mappings()
Implement the function to sync changes in vmalloc and ioremap ranges to all page-tables. Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Andy Lutomirski <luto@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "H . Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Link: http://lkml.kernel.org/r/20200515140023.25469-6-joro@8bytes.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Joerg Roedel
|
8e19843c36 |
x86/mm/64: implement arch_sync_kernel_mappings()
Implement the function to sync changes in vmalloc and ioremap ranges to all page-tables. Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Andy Lutomirski <luto@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "H . Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Link: http://lkml.kernel.org/r/20200515140023.25469-5-joro@8bytes.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Joerg Roedel
|
6c0c7d2b36 |
mm/ioremap: track which page-table levels were modified
Track at which levels in the page-table entries were modified by ioremap_page_range(). After the page-table has been modified, use that information do decide whether the new arch_sync_kernel_mappings() needs to be called. The iounmap path re-uses vunmap(), which has already been taken care of. Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Andy Lutomirski <luto@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "H . Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Link: http://lkml.kernel.org/r/20200515140023.25469-4-joro@8bytes.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Joerg Roedel
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2ba3e6947a |
mm/vmalloc: track which page-table levels were modified
Track at which levels in the page-table entries were modified by vmap/vunmap. After the page-table has been modified, use that information do decide whether the new arch_sync_kernel_mappings() needs to be called. [akpm@linux-foundation.org: map_kernel_range_noflush() needs the arch_sync_kernel_mappings() call] Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Andy Lutomirski <luto@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "H . Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Link: http://lkml.kernel.org/r/20200515140023.25469-3-joro@8bytes.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Joerg Roedel
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d862613800 |
mm: add functions to track page directory modifications
Patch series "mm: Get rid of vmalloc_sync_(un)mappings()", v3. After the recent issue with vmalloc and tracing code[1] on x86 and a long history of previous issues related to the vmalloc_sync_mappings() interface, I thought the time has come to remove it. Please see [2], [3], and [4] for some other issues in the past. The patches add tracking of page-table directory changes to the vmalloc and ioremap code. Depending on which page-table levels changes have been made, a new per-arch function is called: arch_sync_kernel_mappings(). On x86-64 with 4-level paging, this function will not be called more than 64 times in a systems runtime (because vmalloc-space takes 64 PGD entries which are only populated, but never cleared). As a side effect this also allows to get rid of vmalloc faults on x86, making it safe to touch vmalloc'ed memory in the page-fault handler. Note that this potentially includes per-cpu memory. This patch (of 7): Add page-table allocation functions which will keep track of changed directory entries. They are needed for new PGD, P4D, PUD, and PMD entries and will be used in vmalloc and ioremap code to decide whether any changes in the kernel mappings need to be synchronized between page-tables in the system. Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Andy Lutomirski <luto@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: "H . Peter Anvin" <hpa@zytor.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Michal Hocko <mhocko@kernel.org> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Christoph Hellwig <hch@lst.de> Link: http://lkml.kernel.org/r/20200515140023.25469-1-joro@8bytes.org Link: http://lkml.kernel.org/r/20200515140023.25469-2-joro@8bytes.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Christoph Hellwig
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b200f5b58c |
s390: use __vmalloc_node in stack_alloc
stack_alloc can use a slightly higher level vmalloc function. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: Wei Liu <wei.liu@kernel.org> Cc: David Airlie <airlied@linux.ie> Cc: Laura Abbott <labbott@redhat.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Sakari Ailus <sakari.ailus@linux.intel.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Gao Xiang <xiang@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Kelley <mikelley@microsoft.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mackerras <paulus@ozlabs.org> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Will Deacon <will@kernel.org> Link: http://lkml.kernel.org/r/20200414131348.444715-30-hch@lst.de Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Christoph Hellwig
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cb0849a990 |
powerpc: use __vmalloc_node in alloc_vm_stack
alloc_vm_stack can use a slightly higher level vmalloc function. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: David Airlie <airlied@linux.ie> Cc: Gao Xiang <xiang@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Laura Abbott <labbott@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Kelley <mikelley@microsoft.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Sakari Ailus <sakari.ailus@linux.intel.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Wei Liu <wei.liu@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mackerras <paulus@ozlabs.org> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Will Deacon <will@kernel.org> Link: http://lkml.kernel.org/r/20200414131348.444715-29-hch@lst.de Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Christoph Hellwig
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ebcdd3074a |
arm64: use __vmalloc_node in arch_alloc_vmap_stack
arch_alloc_vmap_stack can use a slightly higher level vmalloc function. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: David Airlie <airlied@linux.ie> Cc: Gao Xiang <xiang@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Laura Abbott <labbott@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Kelley <mikelley@microsoft.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Sakari Ailus <sakari.ailus@linux.intel.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Wei Liu <wei.liu@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mackerras <paulus@ozlabs.org> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Will Deacon <will@kernel.org> Link: http://lkml.kernel.org/r/20200414131348.444715-28-hch@lst.de Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |