From: Jens Axboe <axboe@xxxxxxxxx>
[ Upstream commit b5b0ecb736f1ce1e68eb50613c0cfecff10198eb ]
The callback can only be armed, if we get -EIOCBQUEUED returned. It's
important that we clear the WAITQ bit for other cases, otherwise we can
queue for async retry and filemap will assume that we're armed and
return -EAGAIN instead of just blocking for the IO.
Cc: stable@xxxxxxxxxxxxxxx # 5.9+
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/io_uring.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 7625b3e2db2c..06e9c2181995 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -3501,6 +3501,7 @@ static int io_read(struct io_kiocb *req, bool force_nonblock,
goto out_free;
} else if (ret > 0 && ret < io_size) {
/* we got some bytes, but not all. retry. */
+ kiocb->ki_flags &= ~IOCB_WAITQ;
goto retry;
}
done:
--
2.30.1
