In already hwpoisoned case, memory_failure() is supposed to return with
releasing the page refcount taken for error handling. But currently the
refcount is not released when called with MF_COUNT_INCREASED, which makes
page refcount inconsistent. This should be rare and non-critical, but it
might be inconvenient in testing (unpoison doesn't work).
Link: https://lkml.kernel.org/r/20220408135323.1559401-3-naoya.horiguchi@linux.dev
Signed-off-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Suggested-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
No need cast (void*) to (struct hwp_walk*).
Link: https://lkml.kernel.org/r/20220322142826.25939-1-liqiong@nfschina.com
Signed-off-by: liqiong <liqiong@nfschina.com>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Move pageblock migratetype check code in the while loop to simplify the
logic. It also saves redundant buddy page checking code.
Link: https://lkml.kernel.org/r/20220401230804.1658207-1-zi.yan@sent.com
Link: https://lore.kernel.org/linux-mm/27ff69f9-60c5-9e59-feb2-295250077551@suse.cz/
Signed-off-by: Zi Yan <ziy@nvidia.com>
Suggested-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
To make node order in round-robin in the same distance group, we add a
penalty to the first node we got in each round.
To get a round-robin order in the same distance group, we don't need to
decrease the penalty since:
* find_next_best_node() always iterates node in the same order
* distance matters more then penalty in find_next_best_node()
* in nodes with the same distance, the first one would be picked up
So it is fine to increase same penalty when we get the first node in the
same distance group. Since we just increase a constance of 1 to node
penalty, it is not necessary to multiply MAX_NODE_LOAD for preference.
[richard.weiyang@gmail.com: remove remove MAX_NODE_LOAD, per Vlastimil]
Link: https://lkml.kernel.org/r/20220412001319.7462-1-richard.weiyang@gmail.com
Link: https://lkml.kernel.org/r/20220123013537.20491-1-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Oscar Salvador <osalvador@suse.de>
Cc: David Rientjes <rientjes@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Krupa Ramakrishnan <krupa.ramakrishnan@amd.com>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
commit 5ef64cc898 ("mm: allow a controlled amount of unfairness in the
page lock") introduced a new systctl but no accompanying documentation.
Add a simple entry to the documentation.
Link: https://lkml.kernel.org/r/20220325164437.120246-1-jsavitz@redhat.com
Signed-off-by: Joel Savitz <jsavitz@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: "zhangyi (F)" <yi.zhang@huawei.com>
Cc: Charan Teja Reddy <charante@codeaurora.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
vmap() takes struct page *pages as one of arguments, and user may provide
an invalid pointer which may lead to corrupted translation table.
An example of such behaviour is erroneous usage of virt_to_page():
vaddr1 = dma_alloc_coherent()
page = virt_to_page() // Wrong here
...
vaddr2 = vmap(page)
memset(vaddr2) // Faulting here
virt_to_page() returns a wrong pointer if vaddr1 is not a linear kernel
address. The problem is that vmap() populates pte with bad pfn
successfully, and it's much harder to debug at memory access time. This
case should be caught by DEBUG_VIRTUAL being that enabled, but it's not
enabled in popular distros.
Kernel already checks the pages against NULL. In the case mentioned
above, however, the address is not NULL, and it's big enough so that the
hardware generated Address Size Abort on arm64:
[ 665.484101] Unhandled fault at 0xffff8000252cd000
[ 665.488807] Mem abort info:
[ 665.491617] ESR = 0x96000043
[ 665.494675] EC = 0x25: DABT (current EL), IL = 32 bits
[ 665.499985] SET = 0, FnV = 0
[ 665.503039] EA = 0, S1PTW = 0
[ 665.506167] Data abort info:
[ 665.509047] ISV = 0, ISS = 0x00000043
[ 665.512882] CM = 0, WnR = 1
[ 665.515851] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000818cb000
[ 665.522550] [ffff8000252cd000] pgd=000000affcfff003, pud=000000affcffe003, pmd=0000008fad8c3003, pte=00688000a5217713
[ 665.533160] Internal error: level 3 address size fault: 96000043 [#1] SMP
[ 665.539936] Modules linked in: [...]
[ 665.616212] CPU: 178 PID: 13199 Comm: test Tainted: P OE 5.4.0-84-generic #94~18.04.1-Ubuntu
[ 665.626806] Hardware name: HPE Apollo 70 /C01_APACHE_MB , BIOS L50_5.13_1.0.6 07/10/2018
[ 665.636618] pstate: 80400009 (Nzcv daif +PAN -UAO)
[ 665.641407] pc : __memset+0x38/0x188
[ 665.645146] lr : test+0xcc/0x3f8
[ 665.650184] sp : ffff8000359bb840
[ 665.653486] x29: ffff8000359bb840 x28: 0000000000000000
[ 665.658785] x27: 0000000000000000 x26: 0000000000231000
[ 665.664083] x25: ffff00ae660f6110 x24: ffff00ae668cb800
[ 665.669382] x23: 0000000000000001 x22: ffff00af533e5000
[ 665.674680] x21: 0000000000001000 x20: 0000000000000000
[ 665.679978] x19: ffff00ae66950000 x18: ffffffffffffffff
[ 665.685276] x17: 00000000588636a5 x16: 0000000000000013
[ 665.690574] x15: ffffffffffffffff x14: 000000000007ffff
[ 665.695872] x13: 0000000080000000 x12: 0140000000000000
[ 665.701170] x11: 0000000000000041 x10: ffff8000652cd000
[ 665.706468] x9 : ffff8000252cf000 x8 : ffff8000252cd000
[ 665.711767] x7 : 0303030303030303 x6 : 0000000000001000
[ 665.717065] x5 : ffff8000252cd000 x4 : 0000000000000000
[ 665.722363] x3 : ffff8000252cdfff x2 : 0000000000000001
[ 665.727661] x1 : 0000000000000003 x0 : ffff8000252cd000
[ 665.732960] Call trace:
[ 665.735395] __memset+0x38/0x188
[...]
Interestingly, this abort happens even if copy_from_kernel_nofault() is
used, which is quite inconvenient for debugging purposes.
This patch adds a pfn_valid() check into vmap() path, so that invalid
mapping will not be created; WARN_ON() is used to let client code know
that something goes wrong, and it's not a regular EINVAL situation.
Link: https://lkml.kernel.org/r/20220422220410.1308706-1-yury.norov@gmail.com
Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
Suggested-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Alexey Klimov <aklimov@redhat.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Ding Tianhong <dingtianhong@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The sentence
"but the mempolcy want to alloc memory by interleaving"
should be rephrased with
"but the mempolicy wants to alloc memory by interleaving"
where "mempolicy" is a struct name.
This work is coauthored by
Yinan Zhang
Jiajian Ye
Shenghong Han
Chongxi Zhao
Yuhong Feng
Yongqiang Liu
Link: https://lkml.kernel.org/r/20220401064543.4447-1-caoyixuan2019@email.szu.edu.cn
Signed-off-by: Yixuan Cao <caoyixuan2019@email.szu.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
There is no use for the private value, __OOM_TYPE and OOM notifier
OOM_CONTROL. Therefore remove them to make the code clean.
Link: https://lkml.kernel.org/r/20220421122755.40899-1-lujialin4@huawei.com
Signed-off-by: Lu Jialin <lujialin4@huawei.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
cgroup_memory_noswap is only used in mm/memcontrol.c, therefore just make
it static, and remove export in include/linux/memcontrol.h
Link: https://lkml.kernel.org/r/20220421124736.62180-1-lujialin4@huawei.com
Signed-off-by: Lu Jialin <lujialin4@huawei.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
List memory control and kernel memory control kselftests in the memory
resource controller entry.
Link: https://lkml.kernel.org/r/20220415000133.3955987-5-roman.gushchin@linux.dev
Signed-off-by: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Chris Down <chris@chrisdown.name>
Cc: David Vernet <void@manifault.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Zefan Li <lizefan.x@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
List cgroup kselftests in the cgroup MAINTAINERS entry. These are tests
covering core, freezer and cgroup.kill functionality.
Link: https://lkml.kernel.org/r/20220415000133.3955987-4-roman.gushchin@linux.dev
Signed-off-by: Roman Gushchin <roman.gushchin@linux.dev>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Zefan Li <lizefan.x@bytedance.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Chris Down <chris@chrisdown.name>
Cc: David Vernet <void@manifault.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
After commit 0e4b01df86 ("mm, memcg: throttle allocators when failing
reclaim over memory.high") allocating memory over memory.high became very
time consuming. But it's exactly what the memory.high test from cgroup
kselftests is doing: it tries to allocate 100M with 30M memory.high value.
It takes forever to complete.
In order to keep it passing (or failing) in a reasonable amount of time
let's try to allocate only a little over 30M: 31M to be precise.
With this change test_memcontrol finishes in a reasonable amount of
time:
$ time ./test_memcontrol
ok 1 test_memcg_subtree_control
ok 2 test_memcg_current
ok 3 test_memcg_min
ok 4 test_memcg_low
ok 5 test_memcg_high
ok 6 test_memcg_max
ok 7 test_memcg_oom_events
ok 8 test_memcg_swap_max
ok 9 test_memcg_sock
ok 10 test_memcg_oom_group_leaf_events
ok 11 test_memcg_oom_group_parent_events
ok 12 test_memcg_oom_group_score_events
real 0m2.273s
user 0m0.064s
sys 0m0.739s
Link: https://lkml.kernel.org/r/20220415000133.3955987-3-roman.gushchin@linux.dev
Signed-off-by: Roman Gushchin <roman.gushchin@linux.dev>
Reviewed-by: David Vernet <void@manifault.com>
Cc: Chris Down <chris@chrisdown.name>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Zefan Li <lizefan.x@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Patch series "mm: memcg kselftests fixes".
This patch (of 4):
Commit 9852ae3fe5 ("mm, memcg: consider subtrees in memory.events") made
memory.events recursive: all events are propagated upwards by the tree.
It was a change in semantics.
It broke the oom group leaf events test: it assumes that after an OOM the
oom_kill counter is zero on parent's level.
Let's adjust the test: it should have similar expectations for the child
and parent levels.
The test passes after this fix.
Link: https://lkml.kernel.org/r/20220415000133.3955987-2-roman.gushchin@linux.dev
Link: https://lkml.kernel.org/r/20220415000133.3955987-1-roman.gushchin@linux.dev
Signed-off-by: Roman Gushchin <roman.gushchin@linux.dev>
Reviewed-by: David Vernet <void@manifault.com>
Cc: Chris Down <chris@chrisdown.name>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Zefan Li <lizefan.x@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
After commit bef8620cd8 ("mm: memcg: deprecate the non-hierarchical
mode"), we won't have a NULL parent except root_mem_cgroup. And this case
is handled when (memcg == root).
Link: https://lkml.kernel.org/r/20220403020833.26164-1-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
For each round-trip, we assign generation on first invocation and compare
it on subsequent invocations.
Let's move them together to make it more self-explaining. Also this
reduce a check on prev.
[hannes@cmpxchg.org: better comment to explain reclaim model]
Link: https://lkml.kernel.org/r/20220330234719.18340-4-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
During mem_cgroup_iter, there are two ways to get iteration position:
reclaim vs non-reclaim mode.
Let's do it explicitly for reclaim vs non-reclaim mode.
Link: https://lkml.kernel.org/r/20220330234719.18340-3-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Patch series "mm/memcg: some cleanup for mem_cgroup_iter()", v2.
No functional change, try to make it more readable.
This patch (of 3):
Instead of resetting memcg when css is either not verified or not got
reference, we can set it after these process.
No functional change, just simplified the code a little.
Link: https://lkml.kernel.org/r/20220330234719.18340-1-richard.weiyang@gmail.com
Link: https://lkml.kernel.org/r/20220330234719.18340-2-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
When mz is not NULL, it means mz can either come from
mem_cgroup_largest_soft_limit_node or
__mem_cgroup_largest_soft_limit_node. And both of them have removed this
node by __mem_cgroup_remove_exceeded().
Not necessary to call __mem_cgroup_remove_exceeded() again.
[mhocko@suse.com: refine changelog]
Link: https://lkml.kernel.org/r/20220314233030.12334-1-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The local variable nr_scanned is unneeded as mem_cgroup_soft_reclaim
always does *total_scanned += nr_scanned. So we can pass total_scanned
directly to the mem_cgroup_soft_reclaim to simplify the code and save some
cpu cycles of adding nr_scanned to total_scanned.
Link: https://lkml.kernel.org/r/20220328114144.53389-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Reviewed-by: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The return value of shmem_init is never used. So we can make it return
void now.
[akpm@linux-foundation.org: remove `return;' from void-returning function, per Muchun Song]
Link: https://lkml.kernel.org/r/20220328112707.22217-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
In function bdi_set_min_ratio, min_ratio is unsigned int, it will
result underflow when setting min_ratio below bdi->min_ratio, it
is confusing. Rework it, no functional change.
Link: https://lkml.kernel.org/r/20220422095159.2858305-1-chenwandun@huawei.com
Signed-off-by: Chen Wandun <chenwandun@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
I noticed a detail that needs to be adjusted. When judging whether a page
is allocated by vmalloc, the value of the variable "tmp" was repeatedly
judged, so the code was adjusted.
This work is coauthored by Yinan Zhang, Jiajian Ye, Shenghong Han, Chongxi
Zhao, Yuhong Feng and Yongqiang Liu.
Link: https://lkml.kernel.org/r/20220414042744.13896-1-caoyixuan2019@email.szu.edu.cn
Signed-off-by: Yixuan Cao <caoyixuan2019@email.szu.edu.cn>
Cc: Chongxi Zhao <zhaochongxi2019@email.szu.edu.cn>
Cc: Haowen Bai <baihaowen@meizu.com>
Cc: Jiajian Ye <yejiajian2018@email.szu.edu.cn>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Shenghong Han <hanshenghong2019@email.szu.edu.cn>
Cc: Yinan Zhang <zhangyinan2019@email.szu.edu.cn>
Cc: Yongqiang Liu <liuyongqiang13@huawei.com>
Cc: Yuhong Feng <yuhongf@szu.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
An application is suspected of having memory leak when its memory
consumption is high and keeps increasing. There are several commonly used
memory allocators: slab, cma, vmalloc, etc. The memory leak
identification can be sped up if the page information allocated by an
allocator can be analyzed separately.
This patch provides supports for memory allocator labelling for slab,
vmalloc, and cma. The pages allocated by slab and cma can be confirmed
from the "PFN" line according to the kernel codes, and the label of the
vmalloc allocator can be obtained by analyzing the stack trace. Thanks
for Vlastimil Babka's constructive suggestions.
Based on Yinan Zhang's study, the call chain of vmalloc() is vmalloc() ->
... -> __vmalloc_node_range() -> __vmalloc_area_node().
__vmalloc_area_node() requests memory through the interface of buddy
allocation system. In the current version, __vmalloc_area_node() uses
four interfaces: alloc_pages_bulk_array_mempolicy(),
alloc_pages_bulk_array_node(), alloc_pages() and alloc_pages_node(). By
disassembling the code, we find that __vmalloc_area_node() is expanded in
__vmalloc_node_range(). So __vmalloc_area_node is not in the stack trace.
On the test machine, the stack trace of pages allocated by vmalloc has the
following four forms:
__alloc_pages_bulk+0x230/0x6a0
__vmalloc_node_range+0x19c/0x598
alloc_pages_bulk_array_mempolicy+0xbc/0x278
__vmalloc_node_range+0x1e8/0x598
__alloc_pages+0x160/0x2b0
__vmalloc_node_range+0x234/0x598
alloc_pages+0xac/0x150
__vmalloc_node_range+0x44c/0x598
Therefore, in two consecutive lines of stacktrace, if the first line
contains the word "alloc_pages" and the second line contains the word
"__vmalloc_node_range", it can be determined that the page is allocated by
vmalloc. And the function offset and size are not the same on different
machines, so there is no need to match them.
At the same time, this patch updates the --cull and --sort options to
support allocator-based merge statistics and sorting. The added functions
are fully compatible with the original work. When using, you can use
"allocator", or abbreviated as "ator". Relevant updates have also been
made in the documentation(Documentation/vm/page_owner.rst).
Example:
./page_owner_sort <input> <output> --cull=st,pid,name,allocator
./page_owner_sort <input> <output> --sort=ator,pid,name
This work is coauthored by Jiajian Ye, Yinan Zhang, Shenghong Han,
Chongxi Zhao, Yuhong Feng and Yongqiang Liu.
Link: https://lkml.kernel.org/r/20220410132932.9402-1-caoyixuan2019@email.szu.edu.cn
Signed-off-by: Yixuan Cao <caoyixuan2019@email.szu.edu.cn>
Cc: Chongxi Zhao <zhaochongxi2019@email.szu.edu.cn>
Cc: Haowen Bai <baihaowen@meizu.com>
Cc: Jiajian Ye <yejiajian2018@email.szu.edu.cn>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Shenghong Han <hanshenghong2019@email.szu.edu.cn>
Cc: Yinan Zhang <zhangyinan2019@email.szu.edu.cn>
Cc: Yongqiang Liu <liuyongqiang13@huawei.com>
Cc: Yuhong Feng <yuhongf@szu.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
As normal usage, tool will print huge parser log and spend a lot of time
printing, so it would be preferable add "-d" debug control to avoid this
problem.
Link: https://lkml.kernel.org/r/1649672446-5685-1-git-send-email-baihaowen@meizu.com
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Cc: Chongxi Zhao <zhaochongxi2019@email.szu.edu.cn>
Cc: Jiajian Ye <yejiajian2018@email.szu.edu.cn>
Cc: Shenghong Han <hanshenghong2019@email.szu.edu.cn>
Cc: Yinan Zhang <zhangyinan2019@email.szu.edu.cn>
Cc: Yixuan Cao <caoyixuan2019@email.szu.edu.cn>
Cc: Yongqiang Liu <liuyongqiang13@huawei.com>
Cc: Yuhong Feng <yuhongf@szu.edu.cn>
Cc: Sean Anderson <seanga2@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
When viewing page owner information, we may want to sort blocks of
information by multiple keys, since one single key does not uniquely
identify a block. Therefore, following adjustments are made:
1. Add a new --sort option to support sorting blocks of information by
multiple keys.
./page_owner_sort <input> <output> --sort=<order>
./page_owner_sort <input> <output> --sort <order>
<order> is a single argument in the form of a comma-separated list,
which offers a way to specify sorting order.
Sorting syntax is [+|-]key[,[+|-]key[,...]]. The ascending or descending
order can be specified by adding the + (ascending, default) or - (descend
-ing) prefix to the key:
./page_owner_sort <input> <output> [option] --sort -key1,+key2,key3...
For example, to sort the blocks first by task command name in lexicographic
order and then by pid in ascending numerical order, use the following:
./page_owner_sort <input> <output> --sort=name,+pid
To sort the blocks first by pid in ascending order and then by timestamp
of the page when it is allocated in descending order, use the following:
./page_owner_sort <input> <output> --sort=pid,-alloc_ts
2. Add explanations of a newly added --sort option in the function usage()
and the document(Documentation/vm/page_owner.rst).
This work is coauthored by
Yixuan Cao
Shenghong Han
Yinan Zhang
Chongxi Zhao
Yuhong Feng
Yongqiang Liu
Link: https://lkml.kernel.org/r/20220401024856.767-3-yejiajian2018@email.szu.edu.cn
Signed-off-by: Jiajian Ye <yejiajian2018@email.szu.edu.cn>
Cc: Chongxi Zhao <zhaochongxi2019@email.szu.edu.cn>
Cc: Shenghong Han <hanshenghong2019@email.szu.edu.cn>
Cc: Yinan Zhang <zhangyinan2019@email.szu.edu.cn>
Cc: Yixuan Cao <caoyixuan2019@email.szu.edu.cn>
Cc: Yongqiang Liu <liuyongqiang13@huawei.com>
Cc: Yuhong Feng <yuhongf@szu.edu.cn>
Cc: Haowen Bai <baihaowen@meizu.com>
Cc: Sean Anderson <seanga2@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
When viewing page owner information, we may want to select blocks whose
PID/TGID/TASK_COMM_NAME appears in a user-specified list for data analysis
and aggregation. But currently page_owner_sort only supports selecting
blocks associated with only one specified PID/TGID/TASK_COMM_NAME.
Therefore, following adjustments are made to fix the problem:
1. Enhance selecting function to support the selection of multiple
PIDs/TGIDs/TASK_COMM_NAMEs.
The enhanced usages are as follows:
--pid <pidlist> Select by pid. This selects the blocks whose PID
numbers appear in <pidlist>.
--tgid <tgidlist> Select by tgid. This selects the blocks whose
TGID numbers appear in <tgidlist>.
--name <cmdlist> Select by task command name. This selects the
blocks whose task command name appear in <cmdlist>.
Where <pidlist>, <tgidlist>, <cmdlist> are single arguments in the form of
a comma-separated list,which offers a way to specify individual selecting
rules.
For example, if you want to select blocks whose tgids are 1, 2 or 3, you
have to use 4 commands as follows:
./page_owner_sort <input> <output1> --tgid=1
./page_owner_sort <input> <output2> --tgid=2
./page_owner_sort <input> <output3> --tgid=3
cat <output1> <output2> <output3> > <output>
With this patch, you can use only 1 command to obtain the same result as
above:
./page_owner_sort <input> <output1> --tgid=1,2,3
2. Update explanations of --pid, --tgid and --name in the function
usage() and the document(Documents/vm/page_owner.rst).
This work is coauthored by
Yixuan Cao
Shenghong Han
Yinan Zhang
Chongxi Zhao
Yuhong Feng
Yongqiang Liu
Link: https://lkml.kernel.org/r/20220401024856.767-2-yejiajian2018@email.szu.edu.cn
Signed-off-by: Jiajian Ye <yejiajian2018@email.szu.edu.cn>
Cc: Chongxi Zhao <zhaochongxi2019@email.szu.edu.cn>
Cc: Shenghong Han <hanshenghong2019@email.szu.edu.cn>
Cc: Yinan Zhang <zhangyinan2019@email.szu.edu.cn>
Cc: Yixuan Cao <caoyixuan2019@email.szu.edu.cn>
Cc: Yongqiang Liu <liuyongqiang13@huawei.com>
Cc: Yuhong Feng <yuhongf@szu.edu.cn>
Cc: Haowen Bai <baihaowen@meizu.com>
Cc: Sean Anderson <seanga2@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Error messages should be send to stderr using fprintf() instead of
printf().
This work is coauthored by
Yixuan Cao
Shenghong Han
Yinan Zhang
Chongxi Zhao
Yuhong Feng
Yongqiang Liu
Link: https://lkml.kernel.org/r/20220401024856.767-1-yejiajian2018@email.szu.edu.cn
Signed-off-by: Jiajian Ye <yejiajian2018@email.szu.edu.cn>
Cc: Shenghong Han <hanshenghong2019@email.szu.edu.cn>
Cc: Yixuan Cao <caoyixuan2019@email.szu.edu.cn>
Cc: Yinan Zhang <zhangyinan2019@email.szu.edu.cn>
Cc: Chongxi Zhao <zhaochongxi2019@email.szu.edu.cn>
Cc: Yuhong Feng <yuhongf@szu.edu.cn>
Cc: Yongqiang Liu <liuyongqiang13@huawei.com>
Cc: Haowen Bai <baihaowen@meizu.com>
Cc: Sean Anderson <seanga2@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
and netfilter.
Current release - new code bugs:
- bridge: switchdev: check br_vlan_group() return value
- use this_cpu_inc() to increment net->core_stats, fix preempt-rt
Previous releases - regressions:
- eth: stmmac: fix write to sgmii_adapter_base
Previous releases - always broken:
- netfilter: nf_conntrack_tcp: re-init for syn packets only,
resolving issues with TCP fastopen
- tcp: md5: fix incorrect tcp_header_len for incoming connections
- tcp: fix F-RTO may not work correctly when receiving DSACK
- tcp: ensure use of most recently sent skb when filling rate samples
- tcp: fix potential xmit stalls caused by TCP_NOTSENT_LOWAT
- virtio_net: fix wrong buf address calculation when using xdp
- xsk: fix forwarding when combining copy mode with busy poll
- xsk: fix possible crash when multiple sockets are created
- bpf: lwt: fix crash when using bpf_skb_set_tunnel_key() from
bpf_xmit lwt hook
- sctp: null-check asoc strreset_chunk in sctp_generate_reconf_event
- wireguard: device: check for metadata_dst with skb_valid_dst()
- netfilter: update ip6_route_me_harder to consider L3 domain
- gre: make o_seqno start from 0 in native mode
- gre: switch o_seqno to atomic to prevent races in collect_md mode
Misc:
- add Eric Dumazet to networking maintainers
- dt: dsa: realtek: remove realtek,rtl8367s string
- netfilter: flowtable: Remove the empty file
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bluetooth, bpf and netfilter.
Current release - new code bugs:
- bridge: switchdev: check br_vlan_group() return value
- use this_cpu_inc() to increment net->core_stats, fix preempt-rt
Previous releases - regressions:
- eth: stmmac: fix write to sgmii_adapter_base
Previous releases - always broken:
- netfilter: nf_conntrack_tcp: re-init for syn packets only,
resolving issues with TCP fastopen
- tcp: md5: fix incorrect tcp_header_len for incoming connections
- tcp: fix F-RTO may not work correctly when receiving DSACK
- tcp: ensure use of most recently sent skb when filling rate samples
- tcp: fix potential xmit stalls caused by TCP_NOTSENT_LOWAT
- virtio_net: fix wrong buf address calculation when using xdp
- xsk: fix forwarding when combining copy mode with busy poll
- xsk: fix possible crash when multiple sockets are created
- bpf: lwt: fix crash when using bpf_skb_set_tunnel_key() from
bpf_xmit lwt hook
- sctp: null-check asoc strreset_chunk in sctp_generate_reconf_event
- wireguard: device: check for metadata_dst with skb_valid_dst()
- netfilter: update ip6_route_me_harder to consider L3 domain
- gre: make o_seqno start from 0 in native mode
- gre: switch o_seqno to atomic to prevent races in collect_md mode
Misc:
- add Eric Dumazet to networking maintainers
- dt: dsa: realtek: remove realtek,rtl8367s string
- netfilter: flowtable: Remove the empty file"
* tag 'net-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (65 commits)
tcp: fix F-RTO may not work correctly when receiving DSACK
Revert "ibmvnic: Add ethtool private flag for driver-defined queue limits"
net: enetc: allow tc-etf offload even with NETIF_F_CSUM_MASK
ixgbe: ensure IPsec VF<->PF compatibility
MAINTAINERS: Update BNXT entry with firmware files
netfilter: nft_socket: only do sk lookups when indev is available
net: fec: add missing of_node_put() in fec_enet_init_stop_mode()
bnx2x: fix napi API usage sequence
tls: Skip tls_append_frag on zero copy size
Add Eric Dumazet to networking maintainers
netfilter: conntrack: fix udp offload timeout sysctl
netfilter: nf_conntrack_tcp: re-init for syn packets only
net: dsa: lantiq_gswip: Don't set GSWIP_MII_CFG_RMII_CLK
net: Use this_cpu_inc() to increment net->core_stats
Bluetooth: hci_sync: Cleanup hci_conn if it cannot be aborted
Bluetooth: hci_event: Fix creating hci_conn object on error status
Bluetooth: hci_event: Fix checking for invalid handle on error status
ice: fix use-after-free when deinitializing mailbox snapshot
ice: wait 5 s for EMP reset after firmware flash
ice: Protect vf_state check by cfg_lock in ice_vc_process_vf_msg()
...
- Stop warning about deprecation of the userspace thermal governor
and cooling device status interface, because there are cases in
which user space has to drive thermal management with the help
of them (Daniel Lezcano).
- Fix attr.show callback prototype in the int340x thermal driver (Kees
Cook).
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Merge tag 'thermal-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"These take back recent chages that started to confuse users and fix up
an attr.show callback prototype in a driver.
Specifics:
- Stop warning about deprecation of the userspace thermal governor
and cooling device status interface, because there are cases in
which user space has to drive thermal management with the help of
them (Daniel Lezcano)
- Fix attr.show callback prototype in the int340x thermal driver
(Kees Cook)"
* tag 'thermal-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal/governor: Remove deprecated information
Revert "thermal/core: Deprecate changing cooling device state from userspace"
thermal: int340x: Fix attr.show callback prototype
- Fix issues with the Qualcomm's cpufreq driver (Dmitry Baryshkov,
Vladimir Zapolskiy).
- Fix memory leak with the Sun501 driver (Xiaobing Luo).
- Make intel_idle enable C1E promotion on all CPUs when C1E is
preferred to C1 (Artem Bityutskiy).
- Make C6 optimization on Sapphire Rapids added recently work as
expected if both C1E and C1 are "preferred" (Artem Bityutskiy).
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Merge tag 'pm-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix up recent intel_idle driver changes and fix some ARM cpufreq
driver issues.
Specifics:
- Fix issues with the Qualcomm's cpufreq driver (Dmitry Baryshkov,
Vladimir Zapolskiy).
- Fix memory leak with the Sun501 driver (Xiaobing Luo).
- Make intel_idle enable C1E promotion on all CPUs when C1E is
preferred to C1 (Artem Bityutskiy).
- Make C6 optimization on Sapphire Rapids added recently work as
expected if both C1E and C1 are "preferred" (Artem Bityutskiy)"
* tag 'pm-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
intel_idle: Fix SPR C6 optimization
intel_idle: Fix the 'preferred_cstates' module parameter
cpufreq: qcom-cpufreq-hw: Clear dcvs interrupts
cpufreq: fix memory leak in sun50i_cpufreq_nvmem_probe
cpufreq: qcom-cpufreq-hw: Fix throttle frequency value on EPSS platforms
cpufreq: qcom-hw: provide online/offline operations
cpufreq: qcom-hw: fix the opp entries refcounting
cpufreq: qcom-hw: fix the race between LMH worker and cpuhp
cpufreq: qcom-hw: drop affinity hint before freeing the IRQ
- Make the ACPI processor driver avoid falling back to C3 type of
C-states when C3 cannot be requested (Ville Syrjälä).
- Revert a quirk that is not necessary any more after fixing the
underlying issue properly (Ville Syrjälä).
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Merge tag 'acpi-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael WysockiL
"These fix up the ACPI processor driver after a change made during the
5.16 cycle that inadvertently broke falling back to shallower C-states
when C3 cannot be used.
Specifics:
- Make the ACPI processor driver avoid falling back to C3 type of
C-states when C3 cannot be requested (Ville Syrjälä)
- Revert a quirk that is not necessary any more after fixing the
underlying issue properly (Ville Syrjälä)"
* tag 'acpi-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "ACPI: processor: idle: fix lockup regression on 32-bit ThinkPad T40"
ACPI: processor: idle: Avoid falling back to C3 type C-states
Highlights:
- asus-wmi bug-fixes
- intel-sdsu bug-fixes
- build (warning) fixes
- couple of hw-id additions
The following is an automated git shortlog grouped by driver:
asus-wmi:
- Fix driver not binding when fan curve control probe fails
- Potential buffer overflow in asus_wmi_evaluate_method_buf()
dell-laptop:
- Add quirk entry for Latitude 7520
gigabyte-wmi:
- added support for B660 GAMING X DDR4 motherboard
intel-uncore-freq:
- Prevent driver loading in guests
platform/x86/intel:
- pmc/core: change pmc_lpm_modes to static
platform/x86/intel/sdsi:
- Fix bug in multi packet reads
- Poll on ready bit for writes
- Handle leaky bucket
tools/power/x86/intel-speed-select:
- fix build failure when using -Wl,--as-needed
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Merge tag 'platform-drivers-x86-v5.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
"Highlights:
- asus-wmi bug-fixes
- intel-sdsu bug-fixes
- build (warning) fixes
- couple of hw-id additions"
* tag 'platform-drivers-x86-v5.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86/intel: pmc/core: change pmc_lpm_modes to static
platform/x86/intel/sdsi: Fix bug in multi packet reads
platform/x86/intel/sdsi: Poll on ready bit for writes
platform/x86/intel/sdsi: Handle leaky bucket
platform/x86: intel-uncore-freq: Prevent driver loading in guests
platform/x86: gigabyte-wmi: added support for B660 GAMING X DDR4 motherboard
platform/x86: dell-laptop: Add quirk entry for Latitude 7520
platform/x86: asus-wmi: Fix driver not binding when fan curve control probe fails
platform/x86: asus-wmi: Potential buffer overflow in asus_wmi_evaluate_method_buf()
tools/power/x86/intel-speed-select: fix build failure when using -Wl,--as-needed
A minor fix for the DT binding documentation of the rt5190a driver.
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Merge tag 'regulator-fix-v5.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fix from Mark Brown:
"A minor fix for the DT binding documentation of the rt5190a driver"
* tag 'regulator-fix-v5.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: dt-bindings: Revise the rt5190a buck/ldo description
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
1) Fix incorrect TCP connection tracking window reset for non-syn
packets, from Florian Westphal.
2) Incorrect dependency on CONFIG_NFT_FLOW_OFFLOAD, from Volodymyr Mytnyk.
3) Fix nft_socket from the output path, from Florian Westphal.
* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
netfilter: nft_socket: only do sk lookups when indev is available
netfilter: conntrack: fix udp offload timeout sysctl
netfilter: nf_conntrack_tcp: re-init for syn packets only
====================
Link: https://lore.kernel.org/r/20220428142109.38726-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- No short reads or writes upon glock contention
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Merge tag 'gfs2-v5.18-rc4-fix2' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 fix from Andreas Gruenbacher:
- No short reads or writes upon glock contention
* tag 'gfs2-v5.18-rc4-fix2' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: No short reads or writes upon glock contention
This reverts commit 723ad91613
When client requests channel or ring size larger than what the server
can support the server will cap the request to the supported max. So,
the client would not be able to successfully request resources that
exceed the server limit.
Fixes: 723ad91613 ("ibmvnic: Add ethtool private flag for driver-defined queue limits")
Signed-off-by: Dany Madden <drt@linux.ibm.com>
Link: https://lore.kernel.org/r/20220427235146.23189-1-drt@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The Time-Specified Departure feature is indeed mutually exclusive with
TX IP checksumming in ENETC, but TX checksumming in itself is broken and
was removed from this driver in commit 82728b91f1 ("enetc: Remove Tx
checksumming offload code").
The blamed commit declared NETIF_F_HW_CSUM in dev->features to comply
with software TSO's expectations, and still did the checksumming in
software by calling skb_checksum_help(). So there isn't any restriction
for the Time-Specified Departure feature.
However, enetc_setup_tc_txtime() doesn't understand that, and blindly
looks for NETIF_F_CSUM_MASK.
Instead of checking for things which can literally never happen in the
current code base, just remove the check and let the driver offload
tc-etf qdiscs.
Fixes: acede3c5da ("net: enetc: declare NETIF_F_HW_CSUM and do it in software")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20220427203017.1291634-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The VF driver can forward any IPsec flags and such makes the function
is not extendable and prone to backward/forward incompatibility.
If new software runs on VF, it won't know that PF configured something
completely different as it "knows" only XFRM_OFFLOAD_INBOUND flag.
Fixes: eda0333ac2 ("ixgbe: add VF IPsec management")
Reviewed-by: Raed Salem <raeds@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Shannon Nelson <snelson@pensando.io>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20220427173152.443102-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
There appears to be a maintainer gap for BNXT TEE firmware files which
causes some patches to be missed. Update the entry for the BNXT Ethernet
controller with its companion firmware files.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20220427163606.126154-1-f.fainelli@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Merge a fix for the attr.show callback prototype in the int340x thermal
driver (Kees Cook).
* thermal-int340x:
thermal: int340x: Fix attr.show callback prototype
Check if the incoming interface is available and NFT_BREAK
in case neither skb->sk nor input device are set.
Because nf_sk_lookup_slow*() assume packet headers are in the
'in' direction, use in postrouting is not going to yield a meaningful
result. Same is true for the forward chain, so restrict the use
to prerouting, input and output.
Use in output work if a socket is already attached to the skb.
Fixes: 554ced0a6e ("netfilter: nf_tables: add support for native socket matching")
Reported-and-tested-by: Topi Miettinen <toiwoton@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Merge cpuidle fixes for 5.18-rc5:
- Make intel_idle enable C1E promotion on all CPUs when C1E is
preferred to C1 (Artem Bityutskiy).
- Make C6 optimization on Sapphire Rapids added recently work as
expected if both C1E and C1 are "preferred" (Artem Bityutskiy).
* pm-cpuidle:
intel_idle: Fix SPR C6 optimization
intel_idle: Fix the 'preferred_cstates' module parameter
Commit 00bfe02f47 ("gfs2: Fix mmap + page fault deadlocks for buffered
I/O") changed gfs2_file_read_iter() and gfs2_file_buffered_write() to
allow dropping the inode glock while faulting in user buffers. When the
lock was dropped, a short result was returned to indicate that the
operation was interrupted.
As pointed out by Linus (see the link below), this behavior is broken
and the operations should always re-acquire the inode glock and resume
the operation instead.
Link: https://lore.kernel.org/lkml/CAHk-=whaz-g_nOOoo8RRiWNjnv2R+h6_xk2F1J4TuSRxk1MtLw@mail.gmail.com/
Fixes: 00bfe02f47 ("gfs2: Fix mmap + page fault deadlocks for buffered I/O")
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
