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dm: fix comment in __dm_suspend()

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Fix stale references to functions that have been renamed and fix typo.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Mike Snitzer 2020-09-30 15:12:04 -04:00
parent b2abdb1b4b
commit 0cede372ce
1 changed files with 4 additions and 5 deletions
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9
drivers/md/dm.c
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@ -2518,13 +2518,12 @@ static int __dm_suspend(struct mapped_device *md, struct dm_table *map,
/*
* Here we must make sure that no processes are submitting requests
* to target drivers i.e. no one may be executing
* __split_and_process_bio. This is called from dm_request and
* dm_wq_work.
* __split_and_process_bio from dm_submit_bio.
*
* To get all processes out of __split_and_process_bio in dm_request,
* To get all processes out of __split_and_process_bio in dm_submit_bio,
* we take the write lock. To prevent any process from reentering
* __split_and_process_bio from dm_request and quiesce the thread
* (dm_wq_work), we set BMF_BLOCK_IO_FOR_SUSPEND and call
* __split_and_process_bio from dm_submit_bio and quiesce the thread
* (dm_wq_work), we set DMF_BLOCK_IO_FOR_SUSPEND and call
* flush_workqueue(md->wq).
*/
set_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags);