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io_uring: clean up io_uring_cancel_files() 

We don't use the return value anymore, drop it. Also drop the
unecessary double cancel_req value check.

Signed-off-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Bob Liu 2019-11-13 18:06:24 +08:00 committed by Jens Axboe
parent e61df66c69
commit 2f6d9b9d63
1 changed files with 3 additions and 6 deletions
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9
fs/io_uring.c
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@ -4303,7 +4303,6 @@ static void io_uring_cancel_files(struct io_ring_ctx *ctx,
DEFINE_WAIT(wait); DEFINE_WAIT(wait);
while (!list_empty_careful(&ctx->inflight_list)) { while (!list_empty_careful(&ctx->inflight_list)) {
enum io_wq_cancel ret = IO_WQ_CANCEL_NOTFOUND;
struct io_kiocb *cancel_req = NULL; struct io_kiocb *cancel_req = NULL;
spin_lock_irq(&ctx->inflight_lock); spin_lock_irq(&ctx->inflight_lock);
@ -4321,14 +4320,12 @@ static void io_uring_cancel_files(struct io_ring_ctx *ctx,
TASK_UNINTERRUPTIBLE); TASK_UNINTERRUPTIBLE);
spin_unlock_irq(&ctx->inflight_lock); spin_unlock_irq(&ctx->inflight_lock);
if (cancel_req) {
ret = io_wq_cancel_work(ctx->io_wq, &cancel_req->work);
io_put_req(cancel_req);
}
/* We need to keep going until we don't find a matching req */ /* We need to keep going until we don't find a matching req */
if (!cancel_req) if (!cancel_req)
break; break;
io_wq_cancel_work(ctx->io_wq, &cancel_req->work);
io_put_req(cancel_req);
schedule(); schedule();
} }
finish_wait(&ctx->inflight_wait, &wait); finish_wait(&ctx->inflight_wait, &wait);