The MDS reserves a set of inodes for its own usage, and these should
never be accessible to clients. Add a new helper to vet a proposed
inode number against that range, and complain loudly and refuse to
create or look it up if it's in it.
Also, ensure that the MDS doesn't try to delegate inodes that are in
that range or lower. Print a warning if it does, and don't save the
range in the xarray.
URL: https://tracker.ceph.com/issues/49922
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
We need to use i_size_read(), which properly handles the torn read
case on 32-bit arches.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Start preparing to allow the use of THPs in the pagecache with ceph by
making it use thp_size() in lieu of PAGE_SIZE in the appropriate places.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Add support for grabbing the rsnaps value out of the inode info in
traces, and exposing that via ceph.dir.rsnaps xattr.
Signed-off-by: Yanhu Cao <gmayyyha@gmail.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
All of the existing callers that don't set this to NULL just drop the
page reference at some arbitrary point later in processing. There's no
point in keeping a page reference that we don't use, so just drop the
reference immediately after checking the Uptodate flag.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Fixes: 878dabb641 ("ceph: don't return -ESTALE if there's still an open file")
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
There is no need to do a ceph_pool_perm_check() on anything that isn't a
regular file, as the MDS is what handles talking to the OSD in those
cases. Just return 0 if it's not a regular file.
Reported-by: Luis Henriques <lhenriques@suse.de>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
For the old ceph version, if it received this metric info, it will just
ignore them.
URL: https://tracker.ceph.com/issues/46866
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
If the request will retry, skip updating the latency metric.
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
There is some ambiguity around the use of PagePrivate. It's
generally expected in core code that if PagePrivate is set then
you have a reference to it. It's not clear that ceph always
does (and I believe it may not).
Change ceph to use attach/detach_page_private so that we keep a
reference to the page until the snap context is detached.
Link: https://lore.kernel.org/ceph-devel/2503810.1616508988@warthog.procyon.org.uk/T/#mf29e5abbb0ec8035cde0de30778690de7d956f84
Reported-by: David Howells <dhowells@redhat.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
It's possible ceph_get_snapdir could end up finding a (disconnected)
inode that already exists in the cache. Change the prototype for
ceph_handle_snapdir to return a dentry pointer and have it use
d_splice_alias so we don't end up with an aliased dentry in the cache.
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
We want the snapdir to mirror the non-snapped directory's attributes for
most things, but i_snap_caps represents the caps granted on the snapshot
directory by the MDS itself. A misbehaving MDS could issue different
caps for the snapdir and we lose them here.
Only reset i_snap_caps when the inode is I_NEW. Also, move the setting
of i_op and i_fop inside the if block since they should never change
anyway.
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
In preparation to enable -Wimplicit-fallthrough for Clang, fix a couple
of warnings by explicitly adding a break and a goto statements instead
of just letting the code fall through to the next case.
URL: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Convert ceph_readpages to ceph_readahead and make it use
netfs_readahead. With this we can rip out a lot of the old
readpage/readpages infrastructure.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Convert ceph_write_begin to use the netfs_write_begin helper. Most of
the ops we need for it are already in place from the readpage conversion
but we do add a new check_write_begin op since ceph needs to be able to
vet whether there is an incompatible writeback already in flight before
reading in the page.
With this, we can also remove the old ceph_do_readpage helper.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Have the ceph KConfig select NETFS_SUPPORT. Add a new netfs ops
structure and the operations for it. Convert ceph_readpage to use
the new netfs_readpage helper.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Ensure that we invalidate the fscache whenever we invalidate the
pagecache.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
With the new fscache API, the PageFsCache bit now indicates that the
page is being written to the cache and shouldn't be modified or released
until it's finished.
Change releasepage and invalidatepage to wait on that bit before
returning.
Also define FSCACHE_USE_NEW_IO_API so that we opt into the new fscache
API.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
With the new netfs read helper functions, we won't need a lot of this
infrastructure as it handles the pagecache pages itself. Rip out the
read handling for now, and much of the old infrastructure that deals in
individual pages.
The cookie handling is mostly unchanged, however.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Fix some miscellaneous things in the new netfs lib[1]:
(1) The kerneldoc for netfs_readpage() shouldn't say netfs_page().
(2) netfs_readpage() can get an integer overflow on 32-bit when it
multiplies page_index(page) by PAGE_SIZE. It should use
page_file_offset() instead.
(3) netfs_write_begin() should use page_offset() to avoid the same
overflow.
Note that netfs_readpage() needs to use page_file_offset() rather than
page_offset() as it may see swap-over-NFS.
Reported-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Link: https://lore.kernel.org/r/161789062190.6155.12711584466338493050.stgit@warthog.procyon.org.uk/ [1]
Fix four things[1] in the patch that adds ITER_XARRAY[2]:
(1) Remove the address_space struct predeclaration. This is a holdover
from when it was ITER_MAPPING.
(2) Fix _copy_mc_to_iter() so that the xarray segment updates count and
iov_offset in the iterator before returning.
(3) Fix iov_iter_alignment() to not loop in the xarray case. Because the
middle pages are all whole pages, only the end pages need be
considered - and this can be reduced to just looking at the start
position in the xarray and the iteration size.
(4) Fix iov_iter_advance() to limit the size of the advance to no more
than the remaining iteration size.
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Tested-by: Jeff Layton <jlayton@redhat.com>
Tested-by: Dave Wysochanski <dwysocha@redhat.com>
Link: https://lore.kernel.org/r/YIVrJT8GwLI0Wlgx@zeniv-ca.linux.org.uk [1]
Link: https://lore.kernel.org/r/161918448151.3145707.11541538916600921083.stgit@warthog.procyon.org.uk [2]
- Fix potential NULL pointer dereference in the auxtrace option parser.
- Fix access to PID in an array when setting a PID filter in 'perf ftrace'.
- Fix error return code in the 'perf data' tool and in maps__clone(),
found using a static analysis tool from Huawei.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQR2GiIUctdOfX2qHhGyPKLppCJ+JwUCYIV2gQAKCRCyPKLppCJ+
JxlaAP9OUoT+/2lsgnMcU5b+m18TNR4RSTZwfmPszpeyOlfaEgD/YDB8OErUA5VT
VxtLeyOisker3EwZFHzYhN7hxqh9sgU=
=wvGY
-----END PGP SIGNATURE-----
Merge tag 'perf-tools-fixes-for-v5.12-2021-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fix potential NULL pointer dereference in the auxtrace option parser
- Fix access to PID in an array when setting a PID filter in 'perf ftrace'
- Fix error return code in the 'perf data' tool and in maps__clone(),
found using a static analysis tool from Huawei
* tag 'perf-tools-fixes-for-v5.12-2021-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf map: Fix error return code in maps__clone()
perf ftrace: Fix access to pid in array when setting a pid filter
perf auxtrace: Fix potential NULL pointer dereference
perf data: Fix error return code in perf_data__create_dir()
- Fix a panic when initializing perf uncore machinery on HSW and BDW servers
-----BEGIN PGP SIGNATURE-----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=H1RU
-----END PGP SIGNATURE-----
Merge tag 'perf_urgent_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 perf fixes from Borislav Petkov:
- Fix Broadwell Xeon's stepping in the PEBS isolation table of CPUs
- Fix a panic when initializing perf uncore machinery on Haswell and
Broadwell servers
* tag 'perf_urgent_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/kvm: Fix Broadwell Xeon stepping in isolation_ucodes[]
perf/x86/intel/uncore: Remove uncore extra PCI dev HSWEP_PCI_PCU_3
-----BEGIN PGP SIGNATURE-----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=oSCg
-----END PGP SIGNATURE-----
Merge tag 'x86_urgent_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Borislav Petkov:
"Fix an out-of-bounds memory access when setting up a crash kernel with
kexec"
* tag 'x86_urgent_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/crash: Fix crash_setup_memmap_entries() out-of-bounds access
-----BEGIN PGP SIGNATURE-----
iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmCDNcIUHHBib256aW5p
QHJlZGhhdC5jb20ACgkQv/vSX3jHroOiHwf/Za0UAgNc3Vuk+8PU6tBHOuLYt87o
Td1LHbiuBjbNMC17NRCD5maZ+E2d5+5kvOSBLykcZ7/O/hCrdnAsGp5WdIJ+1gz6
Z3xMUHxzvlD3nFBIH+osQGaHFauNkoLzIBs4KQvGgWG1Lck38MKdJ+8P44uoTPHx
Iz+vWX3Y2uN707XO7sciyl8R9jVI3RQYYMZyaf+kCjQCB1loFGvLd+37b4dwwB9c
MIA8AkGWV0es+QFIkgc6TriA2zh02rRkCGzmuwsh2KpzgPHSFf96QZiSoCPFL/YP
t8EstrsXiCUikLRkcS4QFSDqLhiDAnG8SQeNM+8V5YENNRZoXrmyC3E9ww==
=bBbH
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fix from Paolo Bonzini:
"Fix SRCU bug introduced in the merge window"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86/xen: Take srcu lock when accessing kvm_memslots()
This reverts commit 0c85a7e874.
The games with 'rm' are on (two separate instances) of a local variable,
and make no difference.
Quoting Aditya Pakki:
"I was the author of the patch and it was the cause of the giant UMN
revert.
The patch is garbage and I was unaware of the steps involved in
retracting it. I *believed* the maintainers would pull it, given it
was already under Greg's list. The patch does not introduce any bugs
but is pointless and is stupid. I accept my incompetence and for not
requesting a revert earlier."
Link: https://lwn.net/Articles/854319/
Requested-by: Aditya Pakki <pakki001@umn.edu>
Cc: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Fix the number of pins in the community of the Intel
Lewisburg SoC.
- Show pin numbers for controllers with base = 0 in the
new debugfs feature.
-----BEGIN PGP SIGNATURE-----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=zhfn
-----END PGP SIGNATURE-----
Merge tag 'pinctrl-v5.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Late pin control fixes, would have been in the main pull request
normally but hey I got lucky and we got another week to polish up
v5.12 so here we go.
One driver fix and one making the core debugfs work:
- Fix the number of pins in the community of the Intel Lewisburg SoC
- Show pin numbers for controllers with base = 0 in the new debugfs
feature"
* tag 'pinctrl-v5.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: core: Show pin numbers for the controllers with base = 0
pinctrl: lewisburg: Update number of pins in community
Merge misc fixes from Andrew Morton:
"5 patches.
Subsystems affected by this patch series: coda, overlayfs, and
mm (pagecache and memcg)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
tools/cgroup/slabinfo.py: updated to work on current kernel
mm/filemap: fix mapping_seek_hole_data on THP & 32-bit
mm/filemap: fix find_lock_entries hang on 32-bit THP
ovl: fix reference counting in ovl_mmap error path
coda: fix reference counting in coda_file_mmap error path
-----BEGIN PGP SIGNATURE-----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=ZAUT
-----END PGP SIGNATURE-----
Merge tag 'block-5.12-2021-04-23' of git://git.kernel.dk/linux-block
Pull block fix from Jens Axboe:
"A single fix for a behavioral regression in this series, when
re-reading the partition table with partitions open"
* tag 'block-5.12-2021-04-23' of git://git.kernel.dk/linux-block:
block: return -EBUSY when there are open partitions in blkdev_reread_part
slabinfo.py script does not work with actual kernel version.
First, it was unable to recognise SLUB susbsytem, and when I specified
it manually it failed again with
AttributeError: 'struct page' has no member 'obj_cgroups'
.. and then again with
File "tools/cgroup/memcg_slabinfo.py", line 221, in main
memcg.kmem_caches.address_of_(),
AttributeError: 'struct mem_cgroup' has no member 'kmem_caches'
Link: https://lkml.kernel.org/r/cec1a75e-43b4-3d64-2084-d9f98fda037f@virtuozzo.com
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Tested-by: Roman Gushchin <guro@fb.com>
Acked-by: Roman Gushchin <guro@fb.com>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
No problem on 64-bit, or without huge pages, but xfstests generic/285
and other SEEK_HOLE/SEEK_DATA tests have regressed on huge tmpfs, and on
32-bit architectures, with the new mapping_seek_hole_data(). Several
different bugs turned out to need fixing.
u64 cast to stop losing bits when converting unsigned long to loff_t
(and let's use shifts throughout, rather than mixed with * and /).
Use round_up() when advancing pos, to stop assuming that pos was already
THP-aligned when advancing it by THP-size. (This use of round_up()
assumes that any THP has THP-aligned index: true at present and true
going forward, but could be recoded to avoid the assumption.)
Use xas_set() when iterating away from a THP, so that xa_index stays in
synch with start, instead of drifting away to return bogus offset.
Check start against end to avoid wrapping 32-bit xa_index to 0 (and to
handle these additional cases, seek_data or not, it's easier to break
the loop than goto: so rearrange exit from the function).
[hughd@google.com: remove unneeded u64 casts, per Matthew]
Link: https://lkml.kernel.org/r/alpine.LSU.2.11.2104221347240.1170@eggly.anvils
Link: https://lkml.kernel.org/r/alpine.LSU.2.11.2104211737410.3299@eggly.anvils
Fixes: 41139aa4c3 ("mm/filemap: add mapping_seek_hole_data")
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dave Chinner <dchinner@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: Yang Shi <yang.shi@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
No problem on 64-bit, or without huge pages, but xfstests generic/308
hung uninterruptibly on 32-bit huge tmpfs.
Since commit 0cc3b0ec23 ("Clarify (and fix) in 4.13 MAX_LFS_FILESIZE
macros"), MAX_LFS_FILESIZE is only a PAGE_SIZE away from wrapping 32-bit
xa_index to 0, so the new find_lock_entries() has to be extra careful
when handling a THP.
Link: https://lkml.kernel.org/r/alpine.LSU.2.11.2104211735430.3299@eggly.anvils
Fixes: 5c211ba29d ("mm: add and use find_lock_entries")
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@suse.cz>
Cc: Dave Chinner <dchinner@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Yang Shi <yang.shi@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mmap_region() now calls fput() on the vma->vm_file.
Fix this by using vma_set_file() so it doesn't need to be handled
manually here any more.
Link: https://lkml.kernel.org/r/20210421132012.82354-2-christian.koenig@amd.com
Fixes: 1527f926fd ("mm: mmap: fix fput in error path v2")
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jan Harkes <jaharkes@cs.cmu.edu>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: <stable@vger.kernel.org> [5.11+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mmap_region() now calls fput() on the vma->vm_file.
So we need to drop the extra reference on the coda file instead of the
host file.
Link: https://lkml.kernel.org/r/20210421132012.82354-1-christian.koenig@amd.com
Fixes: 1527f926fd ("mm: mmap: fix fput in error path v2")
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Jan Harkes <jaharkes@cs.cmu.edu>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: <stable@vger.kernel.org> [5.11+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kvm_memslots() will be called by kvm_write_guest_offset_cached() so we should
take the srcu lock. Let's pull the srcu lock operation from kvm_steal_time_set_preempted()
again to fix xen part.
Fixes: 30b5c851af ("KVM: x86/xen: Add support for vCPU runstate information")
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1619166200-9215-1-git-send-email-wanpengli@tencent.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
These should be the final fixes for v5.12. There is one fix for SD card
detection on one Allwinner board, and a few fixes for the Tegra
platform that I had already queued up for v5.13 due to a communication
problem. This addresses MMC device ordering on multiple machines,
audio support on Jetson AGX Xavier and suspend/resume on Jetson TX2.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEo6/YBQwIrVS28WGKmmx57+YAGNkFAmCC3jQACgkQmmx57+YA
GNkE+BAAgUmXANlNbhZmjqFacupOTQzp0XMjjym8HMPMF6WdjWU9v99Pl4ozB3rs
CqNJRZR6/b4rdE1d/F4Mdxg1tLy8JYol444wqkxFavYk+VZpugLEMRqiRtTw9w0V
cQZrQGXn5gCwrIO3RefxwxNoDoFWxMJ0w6IYxPXezqfWkT0NlgJigfI5cAq7NVPB
Hz9u7NYBmJC3FXLsG5Fzo+YVLJ5Hsq3CnJOnOuo9n0cerqxay9rlPw2bBes9HwZA
7cv94rRaBWumSZoGe7JFRcZXPrE5i79ke9CBvc8eLtloWa57K1Hr3AqPMVhok2Sb
zAma3FUszKYGS3mlMtZ3Vj6oMse/kDnRuJ9bv0Qy3yZKDiSDz0Xe/6IkCcKFb92r
xZTL+q+U7XrQKUIAfabsVqr56VnPx3Be0ToyWqaKeBmAoM0OsSoNoMaKROJMYHFv
Ifw5cJn/iTjGmJ1rFa6EAiO/a8KxxgWQTEBoegJZPFUG5zqIFHeKzkXkr+9nPpdr
MlWLZblxx3cRLB99jiSwg3GTTJ1H6g6SJ7JYGtTN+k2xRhs/mhQZEWPfM2TQjT7x
i4B9s5hMacqrddGBq4vb0cYJw4iwe5BLmjdGCnfDKntcZJOifbud9FYojxwgpYrW
AZM/p5z0ire75bsduWtD2nasYGnJCTURqo3Hu2grthuUVKPzeTA=
=kooC
-----END PGP SIGNATURE-----
Merge tag 'arm-fixes-5.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"These should be the final fixes for v5.12.
There is one fix for SD card detection on one Allwinner board, and a
few fixes for the Tegra platform that I had already queued up for
v5.13 due to a communication problem. This addresses MMC device
ordering on multiple machines, audio support on Jetson AGX Xavier and
suspend/resume on Jetson TX2"
* tag 'arm-fixes-5.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
arm64: dts: allwinner: Revert SD card CD GPIO for Pine64-LTS
arm64: tegra: Move clocks from RT5658 endpoint to device node
arm64: tegra: Fix mmc0 alias for Jetson Xavier NX
arm64: tegra: Set fw_devlink=on for Jetson TX2
arm64: tegra: Add unit-address for ACONNECT on Tegra186
Although 'err' has been initialized to -ENOMEM, but it will be reassigned
by the "err = unwind__prepare_access(...)" statement in the for loop. So
that, the value of 'err' is unknown when map__clone() failed.
Fixes: 6c50258443 ("perf unwind: Call unwind__prepare_access for forked thread")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: zhen lei <thunder.leizhen@huawei.com>
Link: http://lore.kernel.org/lkml/20210415092744.3793-1-thunder.leizhen@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Command 'perf ftrace -v -- ls' fails in s390 (at least 5.12.0rc6).
The root cause is a missing pointer dereference which causes an
array element address to be used as PID.
Fix this by extracting the PID.
Output before:
# ./perf ftrace -v -- ls
function_graph tracer is used
write '-263732416' to tracing/set_ftrace_pid failed: Invalid argument
failed to set ftrace pid
#
Output after:
./perf ftrace -v -- ls
function_graph tracer is used
# tracer: function_graph
#
# CPU DURATION FUNCTION CALLS
# | | | | | | |
4) | rcu_read_lock_sched_held() {
4) 0.552 us | rcu_lockdep_current_cpu_online();
4) 6.124 us | }
Reported-by: Alexander Schmidt <alexschm@de.ibm.com>
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: http://lore.kernel.org/lkml/20210421120400.2126433-1-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
In the function auxtrace_parse_snapshot_options(), the callback pointer
"itr->parse_snapshot_options" can be NULL if it has not been set during
the AUX record initialization. This can cause tool crashing if the
callback pointer "itr->parse_snapshot_options" is dereferenced without
performing NULL check.
Add a NULL check for the pointer "itr->parse_snapshot_options" before
invoke the callback.
Fixes: d20031bb63 ("perf tools: Add AUX area tracing Snapshot Mode")
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Link: http://lore.kernel.org/lkml/20210420151554.2031768-1-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
amdgpu:
- Fix gpuvm page table update issue
- Modifier fixes
- Register fix for dimgrey cavefish
i915:
- GVT's BDW regression fix for cmd parser
- Fix modesetting in case of unexpected AUX timeouts
-----BEGIN PGP SIGNATURE-----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=1isH
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-2021-04-23' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Just some small i915 and amdgpu fixes this week, should be all until
you open the merge window.
amdgpu:
- Fix gpuvm page table update issue
- Modifier fixes
- Register fix for dimgrey cavefish
i915:
- GVT's BDW regression fix for cmd parser
- Fix modesetting in case of unexpected AUX timeouts"
* tag 'drm-fixes-2021-04-23' of git://anongit.freedesktop.org/drm/drm:
drm/amdgpu: fix GCR_GENERAL_CNTL offset for dimgrey_cavefish
amd/display: allow non-linear multi-planar formats
drm/amd/display: Update modifier list for gfx10_3
drm/amdgpu: reserve fence slot to update page table
drm/i915: Fix modesetting in case of unexpected AUX timeouts
drm/i915/gvt: Fix BDW command parser regression
- save and restore the sysconfig register in gpio-omap
-----BEGIN PGP SIGNATURE-----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=zaJj
-----END PGP SIGNATURE-----
Merge tag 'gpio-fixes-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fix from Bartosz Golaszewski:
"Save and restore the sysconfig register in gpio-omap to fix a
power-management issue"
* tag 'gpio-fixes-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: omap: Save and restore sysconfig
arm64: tegra: Device tree fixes for v5.12-rc6
This contains a couple of device tree fixes for the v5.12 release cycle.
These are needed for proper audio support on Jetson AGX Xavier, to boot
the Jetson Xavier NX from an SD card and to be able to suspend/resume
the Jetson TX2.
* tegra/dt64:
arm64: tegra: Move clocks from RT5658 endpoint to device node
arm64: tegra: Fix mmc0 alias for Jetson Xavier NX
arm64: tegra: Set fw_devlink=on for Jetson TX2
arm64: tegra: Add unit-address for ACONNECT on Tegra186
Link: https://lore.kernel.org/linux-arm-kernel/YILD4yyPXuiYbHW1@orome.fritz.box/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
