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authorPavel Begunkov <asml.silence@gmail.com>2021-04-01 16:43:59 +0200
committerJens Axboe <axboe@kernel.dk>2021-04-12 03:30:34 +0200
commitdf9727affa058f4f18e388b30247650f8ae13cd8 (patch)
tree107c5a4dea2d0d7af8bf12aee6da072a73629fff
parentio_uring: simplify overflow handling (diff)
downloadlinux-df9727affa058f4f18e388b30247650f8ae13cd8.tar.xz
linux-df9727affa058f4f18e388b30247650f8ae13cd8.zip
io_uring: put link timeout req consistently
Don't put linked timeout req in io_async_find_and_cancel() but do it in io_link_timeout_fn(), so we have only one point for that and won't have to do it differently as it's now (put vs put_deferred). Btw, improve a bit io_async_find_and_cancel()'s locking. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/d75b70957f245275ab7cba83e0ac9c1b86aae78a.1617287883.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--fs/io_uring.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 99f5252ff2dc..d575d0d15df5 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -5766,12 +5766,9 @@ static void io_async_find_and_cancel(struct io_ring_ctx *ctx,
int ret;
ret = io_async_cancel_one(req->task->io_uring, sqe_addr, ctx);
- if (ret != -ENOENT) {
- spin_lock_irqsave(&ctx->completion_lock, flags);
- goto done;
- }
-
spin_lock_irqsave(&ctx->completion_lock, flags);
+ if (ret != -ENOENT)
+ goto done;
ret = io_timeout_cancel(ctx, sqe_addr);
if (ret != -ENOENT)
goto done;
@@ -5786,7 +5783,6 @@ done:
if (ret < 0)
req_set_fail_links(req);
- io_put_req(req);
}
static int io_async_cancel_prep(struct io_kiocb *req,
@@ -6361,8 +6357,8 @@ static enum hrtimer_restart io_link_timeout_fn(struct hrtimer *timer)
io_put_req_deferred(prev, 1);
} else {
io_req_complete_post(req, -ETIME, 0);
- io_put_req_deferred(req, 1);
}
+ io_put_req_deferred(req, 1);
return HRTIMER_NORESTART;
}