diff options
| author | Liang Chen <liangchen.linux@gmail.com> | 2020-01-23 20:01:26 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-24 10:34:51 +0300 |
| commit | 4fdf57e5dd38194dbb98c9d9b7254a71742aca6a (patch) | |
| tree | 76fab5c167515401dbc9763675a745664cbde996 /drivers/md | |
| parent | daa58bde67a2e8d6e03ed0fb27adf6fe00847063 (diff) | |
| download | linux-4fdf57e5dd38194dbb98c9d9b7254a71742aca6a.tar.xz | |
bcache: cached_dev_free needs to put the sb page
[ 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>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/bcache/super.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index c45d9ad01077..5b5cbfadd003 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -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); |