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mm: don't automatically unregister bdis 

All BDI users now unregister explicitly.

Link: https://lkml.kernel.org/r/20211021124441.668816-5-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Hellwig 2021-11-05 13:37:01 -07:00 committed by Linus Torvalds
parent 0b3ea0926a
commit 702f2d1e3b
1 changed files with 1 additions and 2 deletions
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3
mm/backing-dev.c
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@ -965,8 +965,7 @@ static void release_bdi(struct kref *ref)
struct backing_dev_info *bdi =
container_of(ref, struct backing_dev_info, refcnt);
if (test_bit(WB_registered, &bdi->wb.state))
bdi_unregister(bdi);
WARN_ON_ONCE(test_bit(WB_registered, &bdi->wb.state));
WARN_ON_ONCE(bdi->dev);
wb_exit(&bdi->wb);
kfree(bdi);