- 17 Feb, 2023 1 commit
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Mike Snitzer authored
Otherwise on resource constrained systems these workqueues may be too greedy. Signed-off-by:Mike Snitzer <snitzer@kernel.org>
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- 16 Feb, 2023 2 commits
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Mike Snitzer authored
Otherwise the while() loop in dm_wq_requeue_work() can result in a "dead loop" on systems that have preemption disabled. This is particularly problematic on single cpu systems. Fixes: 8b211aac ("dm: add two stage requeue mechanism") Cc: stable@vger.kernel.org Signed-off-by:
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Pingfan Liu authored
Otherwise the while() loop in dm_wq_work() can result in a "dead loop" on systems that have preemption disabled. This is particularly problematic on single cpu systems. Cc: stable@vger.kernel.org Signed-off-by:
Pingfan Liu <piliu@redhat.com> Acked-by:
Ming Lei <ming.lei@redhat.com> Signed-off-by:
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- 14 Feb, 2023 37 commits
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Thomas Weißschuh authored
Since commit ee6d3dd4 ("driver core: make kobj_type constant.") the driver core allows the usage of const struct kobj_type. Take advantage of this to constify the structure definition to prevent modification at runtime. Signed-off-by:
Thomas Weißschuh <linux@weissschuh.net> Signed-off-by:
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Tetsuo Handa authored
Flushing system-wide workqueues is dangerous and will be forbidden. Use a local workqueue in dm-mpath.c, dm-raid1.c, and dm-stripe.c. Link: https://lkml.kernel.org/r/49925af7-78a8-a3dd-bce6-cfc02e1a9236@I-love.SAKURA.ne.jpSigned-off-by:
Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by:
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Mike Snitzer authored
Commit acfe0ad7 ("dm: allocate a special workqueue for deferred device removal") switched from using system workqueue to a single workqueue local to DM. But it didn't eliminate the call to flush_scheduled_work() that was introduced purely for the benefit of deferred device removal with commit 2c140a24 ("dm: allow remove to be deferred"). Since DM core uses its own workqueue (and queue_work) there is no need to call flush_scheduled_work() from local_exit(). local_exit()'s destroy_workqueue(deferred_remove_workqueue) handles flushing work started with queue_work(). Fixes: acfe0ad7 ("dm: allocate a special workqueue for deferred device removal") Signed-off-by:
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Heinz Mauelshagen authored
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