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authorLinus Torvalds <torvalds@linux-foundation.org>2020-03-22 10:46:50 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-03-22 10:46:50 -0700
commitb3c03db67e844bb418e50c3e4de12eb11763e425 (patch)
tree3cdbb651827b3769b3ca2488c00a413784194b96 /fs
parentb74b991fb8b9d642b8fea20d6245c6e19125a305 (diff)
parent763802b53a427ed3cbd419dbba255c414fdd9e7c (diff)
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton: "10 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: x86/mm: split vmalloc_sync_all() mm, slub: prevent kmalloc_node crashes and memory leaks mm/mmu_notifier: silence PROVE_RCU_LIST warnings epoll: fix possible lost wakeup on epoll_ctl() path mm: do not allow MADV_PAGEOUT for CoW pages mm, memcg: throttle allocators based on ancestral memory.high mm, memcg: fix corruption on 64-bit divisor in memory.high throttling page-flags: fix a crash at SetPageError(THP_SWAP) mm/hotplug: fix hot remove failure in SPARSEMEM|!VMEMMAP case memcg: fix NULL pointer dereference in __mem_cgroup_usage_unregister_event
Diffstat (limited to 'fs')
-rw-r--r--fs/eventpoll.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index b041b66002db..eee3c92a9ebf 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1854,9 +1854,9 @@ fetch_events:
waiter = true;
init_waitqueue_entry(&wait, current);
- spin_lock_irq(&ep->wq.lock);
+ write_lock_irq(&ep->lock);
__add_wait_queue_exclusive(&ep->wq, &wait);
- spin_unlock_irq(&ep->wq.lock);
+ write_unlock_irq(&ep->lock);
}
for (;;) {
@@ -1904,9 +1904,9 @@ send_events:
goto fetch_events;
if (waiter) {
- spin_lock_irq(&ep->wq.lock);
+ write_lock_irq(&ep->lock);
__remove_wait_queue(&ep->wq, &wait);
- spin_unlock_irq(&ep->wq.lock);
+ write_unlock_irq(&ep->lock);
}
return res;