Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 5.4 389/459] bcache: cached_dev_free needs to put the sb page | Date | Fri, 14 Feb 2020 11:00:39 -0500 |
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From: Liang Chen <liangchen.linux@gmail.com>
[ 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> --- drivers/md/bcache/super.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index 64999c7a8033f..b86cf72033401 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -1274,6 +1274,9 @@ 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); -- 2.20.1
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