mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-13 07:44:00 +08:00
sched/wait: assert the wait_queue_head lock is held in __wake_up_common
Better ensure we actually hold the lock using lockdep than just commenting on it. Due to the various exported _locked interfaces it is far too easy to get the locking wrong. Link: http://lkml.kernel.org/r/20171214152344.6880-4-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jason Baron <jbaron@akamai.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Davidlohr Bueso <dave@stgolabs.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
c430d1e848
commit
e05a8e4d88
@ -69,6 +69,8 @@ static int __wake_up_common(struct wait_queue_head *wq_head, unsigned int mode,
|
||||
wait_queue_entry_t *curr, *next;
|
||||
int cnt = 0;
|
||||
|
||||
lockdep_assert_held(&wq_head->lock);
|
||||
|
||||
if (bookmark && (bookmark->flags & WQ_FLAG_BOOKMARK)) {
|
||||
curr = list_next_entry(bookmark, entry);
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user