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| author |   Christopher Lameter <cl@linux.com> | 2020-06-01 21:45:53 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-02 10:59:06 -0700 |
| commit | aa456c7aebb14a4ff47611586397b5b3e84fbf37 (patch) | |
| tree | 6b39f7c734fc0375495bb493c711a078a91dc631 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | slub: Remove userspace notifier for cache add/remove (diff) | |
| download | wireguard-linux-aa456c7aebb14a4ff47611586397b5b3e84fbf37.tar.xz wireguard-linux-aa456c7aebb14a4ff47611586397b5b3e84fbf37.zip | |
slub: remove kmalloc under list_lock from list_slab_objects() V2
list_slab_objects() is called when a slab is destroyed and there are
objects still left to list the objects in the syslog. This is a pretty
rare event.
And there it seems we take the list_lock and call kmalloc while holding
that lock.
Perform the allocation in free_partial() before the list_lock is taken.
Fixes: bbd7d57bfe852d9788bae5fb171c7edb4021d8ac ("slub: Potential stack overflow")
Signed-off-by: Christopher Lameter <cl@linux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: Yu Zhao <yuzhao@google.com>
Link: http://lkml.kernel.org/r/alpine.DEB.2.21.2002031721250.1668@www.lameter.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions