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authorChristoph Hellwig <hch@lst.de>2021-10-12 13:12:20 +0200
committerJens Axboe <axboe@kernel.dk>2021-10-18 06:17:36 -0600
commitd729cf9acb9311956c8a37113dcfa0160a2d9665 (patch)
treedb98a1f9ce4a4ddf9e454bc8660a87dacb616061 /fs
parentef99b2d37666b7a600baab9e1c4944436652b0a2 (diff)
io_uring: don't sleep when polling for I/O
There is no point in sleeping for the expected I/O completion timeout in the io_uring async polling model as we never poll for a specific I/O. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Mark Wunderlich <mark.wunderlich@intel.com> Link: https://lore.kernel.org/r/20211012111226.760968-11-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs')
-rw-r--r--fs/io_uring.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 541fec2bd49a..c5066146b8de 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2457,7 +2457,7 @@ static int io_do_iopoll(struct io_ring_ctx *ctx, unsigned int *nr_events,
long min)
{
struct io_kiocb *req, *tmp;
- unsigned int poll_flags = 0;
+ unsigned int poll_flags = BLK_POLL_NOSLEEP;
LIST_HEAD(done);
/*