sched: change wake_up_bit() and related function to expect unsigned long *

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wake_up_bit() currently allows a "void *".  While this isn't strictly a
problem as the address is never dereferenced, it is inconsistent with
the corresponding wait_on_bit() which requires "unsigned long *" and
does dereference the pointer.

Any code that needs to wait for a change in something other than an
unsigned long would be better served by wake_up_var()/wait_var_event().

This patch changes all related "void *" to "unsigned long *".

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240925053405.3960701-2-neilb@suse.de

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NeilBrown 2024-09-25 15:31:38 +10:00 • committed by Peter Zijlstra

parent 8cf0b93919

commit 2382d68d7d

2 changed files with 14 additions and 14 deletions

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16

include/linux/wait_bit.h

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12

kernel/sched/wait_bit.c

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