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authorChenliang Li <cliang01.li@samsung.com>2024-06-19 14:38:19 +0800
committerJens Axboe <axboe@kernel.dk>2024-06-20 06:51:56 -0600
commita23800f08a60787dfbf2b87b2e6ed411cb629859 (patch)
tree7696cecea2cccecf89684dcce94eb7ae95451c99
parentf4a1254f2a076afb0edd473589bf40f9b4d36b41 (diff)
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: b000ae0ec2d7 ("io_uring/rsrc: optimise single entry advance") Signed-off-by: Chenliang Li <cliang01.li@samsung.com> Reviewed-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/20240619063819.2445-1-cliang01.li@samsung.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--io_uring/rsrc.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c
index edb9c5baf2e2..570bfa6a31aa 100644
--- a/io_uring/rsrc.c
+++ b/io_uring/rsrc.c
@@ -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 {