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-rw-r--r--fs/aio.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/aio.c b/fs/aio.c
index 1b7893ecc296..c428871f1093 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1140,6 +1140,13 @@ static long aio_read_events_ring(struct kioctx *ctx,
1140 long ret = 0; 1140 long ret = 0;
1141 int copy_ret; 1141 int copy_ret;
1142 1142
1143 /*
1144 * The mutex can block and wake us up and that will cause
1145 * wait_event_interruptible_hrtimeout() to schedule without sleeping
1146 * and repeat. This should be rare enough that it doesn't cause
1147 * peformance issues. See the comment in read_events() for more detail.
1148 */
1149 sched_annotate_sleep();
1143 mutex_lock(&ctx->ring_lock); 1150 mutex_lock(&ctx->ring_lock);
1144 1151
1145 /* Access to ->ring_pages here is protected by ctx->ring_lock. */ 1152 /* Access to ->ring_pages here is protected by ctx->ring_lock. */