[Devel] [PATCH 1/3] fuse: Kill fasync only if interrupt is queued in queue_interrupt()

Kirill Tkhai ktkhai at virtuozzo.com
Tue Apr 2 12:16:32 MSK 2019


ms commit 8da6e9183275

We should sent signal only in case of interrupt is really queued.  Not a
real problem, but this makes the code clearer and intuitive.

Signed-off-by: Kirill Tkhai <ktkhai at virtuozzo.com>
Signed-off-by: Miklos Szeredi <mszeredi at redhat.com>
Signed-off-by: Kirill Tkhai <ktkhai at virtuozzo.com>
---
 fs/fuse/dev.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index dc21886ee55d..eb5c62e3170f 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -479,9 +479,9 @@ static void queue_interrupt(struct fuse_iqueue *fiq, struct fuse_req *req)
 	if (list_empty(&req->intr_entry)) {
 		list_add_tail(&req->intr_entry, &fiq->interrupts);
 		wake_up_locked(&fiq->waitq);
+		kill_fasync(&fiq->fasync, SIGIO, POLL_IN);
 	}
 	spin_unlock(&fiq->waitq.lock);
-	kill_fasync(&fiq->fasync, SIGIO, POLL_IN);
 }
 
 static void request_wait_answer(struct fuse_conn *fc, struct fuse_req *req)



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