Jens Axboe b5959be936 UPSTREAM: task_work: add helper for more targeted task_work canceling ...

[ Upstream commit c7aab1a7c52b82d9afd7e03c398eb03dc2aa0507 ]

The only exported helper we have right now is task_work_cancel(), which
cancels any task_work from a given task where func matches the queued
work item. This is a bit too coarse for some use cases. Add a
task_work_cancel_match() that allows to more specifically target
individual work items outside of purely the callback function used.

task_work_cancel() can be trivially implemented on top of that, hence do
so.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Change-Id: Ia33480d209b26d433a3ca196972d6931aa4f8dde
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit ed30050329)
Bug: 268174392
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

2023-02-16 12:00:51 +00:00

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