github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-30 18:13:41 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

io_uring/rsrc: remove redundant check for valid imu

Browse Source 
The only caller to io_buffer_unmap already checks if the node's buf is
not null, so no need to check again.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250224213116.3509093-2-kbusch@meta.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Keith Busch 2025-02-24 13:31:06 -08:00 committed by Jens Axboe
parent 7a9b0d6925
commit c5b47d5a8c
1 changed files with 8 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
io_uring/rsrc.c
View File

@ -103,19 +103,16 @@ static int io_buffer_validate(struct iovec *iov)
static void io_buffer_unmap(struct io_ring_ctx *ctx, struct io_rsrc_node *node)
{
struct io_mapped_ubuf *imu = node->buf;
unsigned int i;
if (node->buf) {
struct io_mapped_ubuf *imu = node->buf;
if (!refcount_dec_and_test(&imu->refs))
return;
for (i = 0; i < imu->nr_bvecs; i++)
unpin_user_page(imu->bvec[i].bv_page);
if (imu->acct_pages)
io_unaccount_mem(ctx, imu->acct_pages);
kvfree(imu);
}
if (!refcount_dec_and_test(&imu->refs))
return;
for (i = 0; i < imu->nr_bvecs; i++)
unpin_user_page(imu->bvec[i].bv_page);
if (imu->acct_pages)
io_unaccount_mem(ctx, imu->acct_pages);
kvfree(imu);
}
struct io_rsrc_node *io_rsrc_node_alloc(int type)