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blk-cgroup: store a gendisk to throttle in struct task_struct

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Switch from a request_queue pointer and reference to a gendisk once
for the throttle information in struct task_struct.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Andreas Herrmann <aherrmann@suse.de>
Link: https://lore.kernel.org/r/20230203150400.3199230-8-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig
2023-02-03 16:03:48 +01:00
committed by Jens Axboe
parent 84d7d462b1
commit f05837ed73
4 changed files with 18 additions and 20 deletions
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kernel/fork.c
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@@ -1044,7 +1044,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig, int node)
#endif
#ifdef CONFIG_BLK_CGROUP
tsk->throttle_queue = NULL;
tsk->throttle_disk = NULL;
tsk->use_memdelay = 0;
#endif