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/[email protected]
Signed-off-by: Jason Baron <[email protected]>
Reviewed-by: Roman Penyaev <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: Al Viro <[email protected]>
Cc: Eric Wong <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
1 file changed
