Commit a23800f0 authored by Chenliang Li's avatar Chenliang Li Committed by Jens Axboe
Browse files

io_uring/rsrc: fix incorrect assignment of iter->nr_segs in io_import_fixed 



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: b000ae0e ("io_uring/rsrc: optimise single entry advance")
Signed-off-by: default avatarChenliang Li <cliang01.li@samsung.com>
Reviewed-by: default avatarPavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/20240619063819.2445-1-cliang01.li@samsung.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent f4a1254f

io_uring/rsrc.c

+0 −1
Original line number Diff line number Diff line
@@ -1068,7 +1068,6 @@ 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 {