6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chenliang Li <cliang01.li@xxxxxxxxxxx>
[ Upstream commit a23800f08a60787dfbf2b87b2e6ed411cb629859 ]
In io_import_fixed when advancing the iter within the first bvec, the
iter->nr_segs is set to bvec->bv_len. nr_segs should be the number of
bvecs, plus we don't need to adjust it here, so just remove it.
Fixes: b000ae0ec2d7 ("io_uring/rsrc: optimise single entry advance")
Signed-off-by: Chenliang Li <cliang01.li@xxxxxxxxxxx>
Reviewed-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
Link: https://lore.kernel.org/r/20240619063819.2445-1-cliang01.li@xxxxxxxxxxx
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
io_uring/rsrc.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c
index 2e88b6658e4e0..0f9dcde72ebff 100644
--- a/io_uring/rsrc.c
+++ b/io_uring/rsrc.c
@@ -1108,7 +1108,6 @@ int io_import_fixed(int ddir, struct iov_iter *iter,
* branch doesn't expect non PAGE_SIZE'd chunks.
*/
iter->bvec = bvec;
- iter->nr_segs = bvec->bv_len;
iter->count -= offset;
iter->iov_offset = offset;
} else {
--
2.43.0
