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authorJeff Layton <jlayton@kernel.org>2024-02-18 08:33:28 -0500
committerChristian Brauner <brauner@kernel.org>2024-02-20 09:53:33 +0100
commit14786d949a3b8cf00cc32456363b7db22894a0e6 (patch)
tree01ad61ea133dd50892b29e906d3e19234ff1c840 /fs/smb/client/cifsfs.c
parent582a3bf999df662c0e0fa4717ce7559f16d7b93b (diff)
filelock: fix deadlock detection in POSIX locking
The FL_POSIX check in __locks_insert_block was inadvertantly broken recently and is now inserting only OFD locks instead of only legacy POSIX locks. This breaks deadlock detection in POSIX locks, and may also be the root cause of a performance regression noted by the kernel test robot. Restore the proper sense of the test. Fixes: b6be3714005c ("filelock: convert __locks_insert_block, conflict and deadlock checks to use file_lock_core") Reported-by: kernel test robot <oliver.sang@intel.com> Closes: https://lore.kernel.org/oe-lkp/202402181229.f8147f40-oliver.sang@intel.com Signed-off-by: Jeff Layton <jlayton@kernel.org> Link: https://lore.kernel.org/r/20240218-flsplit4-v1-1-26454fc090f2@kernel.org Reviewed-by: NeilBrown <neilb@suse.de> Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs/smb/client/cifsfs.c')
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