github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-27 01:32:21 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

Revert "io_uring: grab RCU read lock marking task run"

Browse Source 
This reverts commit ed64f5c546.

Since commit:

648790e095 ("io_uring: restore RCU read section in io_req_local_work_add()")

io_ctx_mark_taskrun() is only ever called with the RCU read lock
already held, like previously. Hence's there's no need for this commit
anymore, which grabbed the RCU read lock inside io_ctx_mark_taskrun().

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2026-07-09 11:43:07 -06:00
parent 648790e095
commit f3176c8ac4
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
io_uring/tw.c
View File

@ -139,11 +139,11 @@ void tctx_task_work(struct callback_head *cb)
*/
static void io_ctx_mark_taskrun(struct io_ring_ctx *ctx)
{
if (ctx->flags & IORING_SETUP_TASKRUN_FLAG) {
struct io_rings *rings;
lockdep_assert_in_rcu_read_lock();
if (ctx->flags & IORING_SETUP_TASKRUN_FLAG) {
struct io_rings *rings = rcu_dereference(ctx->rings_rcu);
guard(rcu)();
rings = rcu_dereference(ctx->rings_rcu);
atomic_or(IORING_SQ_TASKRUN, &rings->sq_flags);
}
}