ich777/linux_media
1
0
Fork 0
mirror of https://github.com/tbsdtv/linux_media.git synced 2025-07-23 12:43:29 +02:00
Code Issues Packages Projects Releases Wiki Activity

io_uring: dont remove file from msg_ring reqs

Browse Source 
We should not be messing with req->file outside of core paths. Clearing
it makes msg_ring non reentrant, i.e. luckily io_msg_send_fd() fails the
request on failed io_double_lock_ctx() but clearly was originally
intended to do retries instead.

Cc: stable@vger.kernel.org
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/e5ac9edadb574fe33f6d727cb8f14ce68262a684.1670384893.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov
2022-12-07 03:53:26 +00:00
committed by Jens Axboe
parent 7500194a63
commit ef0ec1ad03
4 changed files with 10 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
io_uring/msg_ring.c
View File

@@ -167,9 +167,5 @@ done:
if (ret < 0)
req_set_fail(req);
io_req_set_res(req, ret, 0);
/* put file to avoid an attempt to IOPOLL the req */
if (!(req->flags & REQ_F_FIXED_FILE))
io_put_file(req->file);
req->file = NULL;
return IOU_OK;
}