iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

bcache: cached_dev_free needs to put the sb page

Browse Source 
[ Upstream commit e8547d42095e58bee658f00fef8e33d2a185c927 ]

Same as cache device, the buffer page needs to be put while
freeing cached_dev.  Otherwise a page would be leaked every
time a cached_dev is stopped.

Signed-off-by: Liang Chen <liangchen.linux@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Liang Chen 2020-01-24 01:01:26 +08:00 committed by Greg Kroah-Hartman
parent daa58bde67
commit 4fdf57e5dd
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/md/bcache/super.c
View File

@ -1226,6 +1226,9 @@ static void cached_dev_free(struct closure *cl)
mutex_unlock(&bch_register_lock);
if (dc->sb_bio.bi_inline_vecs[0].bv_page)
put_page(bio_first_page_all(&dc->sb_bio));
if (!IS_ERR_OR_NULL(dc->bdev))
blkdev_put(dc->bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL);