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io_uring: refactor io_sq_thread()

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Move needs_sched declaration into the block where it's used, so it's
harder to misuse/wrongfully reuse.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/e4a07db1353ee38b924dd1b45394cf8e746130b4.1624543113.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2021-06-24 15:09:56 +01:00 committed by Jens Axboe
parent 948e19479c
commit 1a924a8082
1 changed files with 3 additions and 3 deletions
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6
fs/io_uring.c
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@ -6876,7 +6876,7 @@ static int io_sq_thread(void *data)
mutex_lock(&sqd->lock);
while (1) {
bool cap_entries, sqt_spin, needs_sched;
bool cap_entries, sqt_spin = false;
if (io_sqd_events_pending(sqd) || signal_pending(current)) {
if (io_sqd_handle_event(sqd))
@ -6885,7 +6885,6 @@ static int io_sq_thread(void *data)
continue;
}
sqt_spin = false;
cap_entries = !list_is_singular(&sqd->ctx_list);
list_for_each_entry(ctx, &sqd->ctx_list, sqd_list) {
int ret = __io_sq_thread(ctx, cap_entries);
@ -6904,7 +6903,8 @@ static int io_sq_thread(void *data)
prepare_to_wait(&sqd->wait, &wait, TASK_INTERRUPTIBLE);
if (!io_sqd_events_pending(sqd) && !io_run_task_work()) {
needs_sched = true;
bool needs_sched = true;
list_for_each_entry(ctx, &sqd->ctx_list, sqd_list) {
io_ring_set_wakeup_flag(ctx);