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| author |   Jason Baron <jbaron@akamai.com> | 2019-12-04 16:52:12 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2019-12-04 19:44:13 -0800 |
| commit | f6520c520842c532059c380d7a5b30b6e0e72ced (patch) | |
| tree | 9108154e662d305cec3c7494110147299e07c826 /fs/nsfs.c | |
| parent | checkpatch: reduce is_maintained_obsolete lookup runtime (diff) | |
| download | linux-dev-f6520c520842c532059c380d7a5b30b6e0e72ced.tar.xz linux-dev-f6520c520842c532059c380d7a5b30b6e0e72ced.zip | |
epoll: simplify ep_poll_safewake() for CONFIG_DEBUG_LOCK_ALLOC
Currently, ep_poll_safewake() in the CONFIG_DEBUG_LOCK_ALLOC case uses
ep_call_nested() in order to pass the correct subclass argument to
spin_lock_irqsave_nested(). However, ep_call_nested() adds unnecessary
checks for epoll depth and loops that are already verified when doing
EPOLL_CTL_ADD. This mirrors a conversion that was done for
!CONFIG_DEBUG_LOCK_ALLOC in: commit 37b5e5212a44 ("epoll: remove
ep_call_nested() from ep_eventpoll_poll()")
Link: http://lkml.kernel.org/r/1567628549-11501-1-git-send-email-jbaron@akamai.com
Signed-off-by: Jason Baron <jbaron@akamai.com>
Reviewed-by: Roman Penyaev <rpenyaev@suse.de>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nsfs.c')
0 files changed, 0 insertions, 0 deletions