From 41be53e94fb04cc69fdf2f524c2a05d8069e047b Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Sat, 13 Feb 2021 09:11:04 -0700
Subject: [PATCH] io_uring: kill cached requests from exiting task closing the
ring
Be nice and prune these upfront, in case the ring is being shared and
one of the tasks is going away. This is a bit more important now that
we account the allocations.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
fs/io_uring.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 1895fc1322527..a9d094f7060f4 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -9232,8 +9232,10 @@ static int io_uring_flush(struct file *file, void *data)
struct io_uring_task *tctx = current->io_uring;
struct io_ring_ctx *ctx = file->private_data;
- if (fatal_signal_pending(current) || (current->flags & PF_EXITING))
+ if (fatal_signal_pending(current) || (current->flags & PF_EXITING)) {
io_uring_cancel_task_requests(ctx, NULL);
+ io_req_caches_free(ctx, current);
+ }
if (!tctx)
return 0;
--
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