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authorJens Axboe <axboe@kernel.dk>2024-05-21 20:31:12 +0200
committerJens Axboe <axboe@kernel.dk>2024-05-21 21:41:14 +0200
commitd13ddd9c893f0e8498526bf88c6b5fad01f0edd8 (patch)
treec07343b3fc397338045c3726e91b396f466e2174 /io_uring
parentMerge tag 'soundwire-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff)
downloadlinux-d13ddd9c893f0e8498526bf88c6b5fad01f0edd8.tar.xz
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io_uring/sqpoll: ensure that normal task_work is also run timely
With the move to private task_work, SQPOLL neglected to also run the normal task_work, if any is pending. This will eventually get run, but we should run it with the private task_work to ensure that things like a final fput() is processed in a timely fashion. Cc: stable@vger.kernel.org Link: https://lore.kernel.org/all/313824bc-799d-414f-96b7-e6de57c7e21d@gmail.com/ Reported-by: Andrew Udvare <audvare@gmail.com> Fixes: af5d68f8892f ("io_uring/sqpoll: manage task_work privately") Tested-by: Christian Heusel <christian@heusel.eu> Tested-by: Andrew Udvare <audvare@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring')
-rw-r--r--io_uring/sqpoll.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/io_uring/sqpoll.c b/io_uring/sqpoll.c
index 554c7212aa46..b3722e5275e7 100644
--- a/io_uring/sqpoll.c
+++ b/io_uring/sqpoll.c
@@ -238,11 +238,13 @@ static unsigned int io_sq_tw(struct llist_node **retry_list, int max_entries)
if (*retry_list) {
*retry_list = io_handle_tw_list(*retry_list, &count, max_entries);
if (count >= max_entries)
- return count;
+ goto out;
max_entries -= count;
}
-
*retry_list = tctx_task_work_run(tctx, max_entries, &count);
+out:
+ if (task_work_pending(current))
+ task_work_run();
return count;
}