[PATCH 02/20] aio: clear IOCB_HIPRI
From: Jens Axboe <axboe@kernel.dk>
Date: 2018-11-27 03:40:31
Also in:
linux-fsdevel
Subsystem:
aio, filesystems (vfs and infrastructure), the rest · Maintainers:
Benjamin LaHaise, Alexander Viro, Christian Brauner, Linus Torvalds
From: Christoph Hellwig <hch@lst.de> No one is going to poll for aio (yet), so we must clear the HIPRI flag, as we would otherwise send it down the poll queues, where no one will be polling for completions. Signed-off-by: Christoph Hellwig <hch@lst.de> IOCB_HIPRI, not RWF_HIPRI. Signed-off-by: Jens Axboe <axboe@kernel.dk> --- fs/aio.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/fs/aio.c b/fs/aio.c
index 205390c0c1bb..05647d352bf3 100644
--- a/fs/aio.c
+++ b/fs/aio.c@@ -1436,8 +1436,7 @@ static int aio_prep_rw(struct kiocb *req, struct iocb *iocb) ret = ioprio_check_cap(iocb->aio_reqprio); if (ret) { pr_debug("aio ioprio check cap error: %d\n", ret); - fput(req->ki_filp); - return ret; + goto out_fput; } req->ki_ioprio = iocb->aio_reqprio;
@@ -1446,7 +1445,13 @@ static int aio_prep_rw(struct kiocb *req, struct iocb *iocb) ret = kiocb_set_rw_flags(req, iocb->aio_rw_flags); if (unlikely(ret)) - fput(req->ki_filp); + goto out_fput; + + req->ki_flags &= ~IOCB_HIPRI; /* no one is going to poll for this I/O */ + return 0; + +out_fput: + fput(req->ki_filp); return ret; }
--
2.17.1