VisionFive2 Linux kernel

author: Matthew Wilcox <mawilcox@microsoft.com> 2018-08-21 21:56:30 -0700 committer: Linus Torvalds <torvalds@linux-foundation.org> 2018-08-22 10:52:47 -0700 commit: c430d1e848ff1240d126e79780f3c26208b8aed9 parent: ee8ef0a4b167c1f2605bc9b5701c603224673d53

Commit Summary:

userfaultfd: use fault_wqh lock

Diffstat:

1 file changed, 3 insertions, 3 deletions

diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 15c265d450bf..f649023b19b5 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -910,7 +910,7 @@ wakeup:
 	 */
 	spin_lock(&ctx->fault_pending_wqh.lock);
 	__wake_up_locked_key(&ctx->fault_pending_wqh, TASK_NORMAL, &range);
-	__wake_up_locked_key(&ctx->fault_wqh, TASK_NORMAL, &range);
+	__wake_up(&ctx->fault_wqh, TASK_NORMAL, 1, &range);
 	spin_unlock(&ctx->fault_pending_wqh.lock);
 
 	/* Flush pending events that may still wait on event_wqh */
@@ -1066,7 +1066,7 @@ static ssize_t userfaultfd_ctx_read(struct userfaultfd_ctx *ctx, int no_wait,
 			 * anyway.
 			 */
 			list_del(&uwq->wq.entry);
-			__add_wait_queue(&ctx->fault_wqh, &uwq->wq);
+			add_wait_queue(&ctx->fault_wqh, &uwq->wq);
 
 			write_seqcount_end(&ctx->refile_seq);
 
@@ -1215,7 +1215,7 @@ static void __wake_userfault(struct userfaultfd_ctx *ctx,
 		__wake_up_locked_key(&ctx->fault_pending_wqh, TASK_NORMAL,
 				     range);
 	if (waitqueue_active(&ctx->fault_wqh))
-		__wake_up_locked_key(&ctx->fault_wqh, TASK_NORMAL, range);
+		__wake_up(&ctx->fault_wqh, TASK_NORMAL, 1, range);
 	spin_unlock(&ctx->fault_pending_wqh.lock);
 }