The hot path is IO completing on the first try. Reshuffle io_rw_reissue() so
it's checked first.
Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
---
fs/io_uring.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 4bcabc51fc5a..7f4bc5092b5c 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2713,12 +2713,13 @@ static bool io_resubmit_prep(struct io_kiocb *req, int error)
static bool io_rw_reissue(struct io_kiocb *req, long res)
{
#ifdef CONFIG_BLOCK
- umode_t mode = file_inode(req->file)->i_mode;
+ umode_t mode;
int ret;
- if (!S_ISBLK(mode) && !S_ISREG(mode))
+ if (res != -EAGAIN && res != -EOPNOTSUPP)
return false;
- if ((res != -EAGAIN && res != -EOPNOTSUPP) || io_wq_current_is_worker())
+ mode = file_inode(req->file)->i_mode;
+ if ((!S_ISBLK(mode) && !S_ISREG(mode)) || io_wq_current_is_worker())
return false;
lockdep_assert_held(&req->ctx->uring_lock);
--
2.24.0
