superrob1500
/
mirror-linux
mirror of https://github.com/torvalds/linux
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

io_uring/rsrc: skip NULL file/buffer checks in io_free_rsrc_node() 

io_rsrc_node's of type IORING_RSRC_FILE always have a file attached
immediately after they are allocated. IORING_RSRC_BUFFER nodes won't be
returned from io_sqe_buffer_register()/io_buffer_register_bvec() until
they have a io_mapped_ubuf attached.

So remove the checks for a NULL file/buffer in io_free_rsrc_node().

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://lore.kernel.org/r/20250228235916.670437-5-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
pull/1188/head
Caleb Sander Mateos 2025-02-28 16:59:14 -07:00 committed by Jens Axboe
parent 6e5d321a08
commit fe21a4532e
1 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
io_uring/rsrc.c
View File

@ -500,12 +500,10 @@ void io_free_rsrc_node(struct io_ring_ctx *ctx, struct io_rsrc_node *node)
switch (node->type) {
case IORING_RSRC_FILE:
if (io_slot_file(node))
fput(io_slot_file(node));
fput(io_slot_file(node));
break;
case IORING_RSRC_BUFFER:
if (node->buf)
io_buffer_unmap(ctx, node->buf);
io_buffer_unmap(ctx, node->buf);
break;
default:
WARN_ON_ONCE(1);