From: Liang Chen <liangchen.linux@gmail.com>
To: colyli@suse.de
Cc: kent.overstreet@gmail.com, linux-kernel@vger.kernel.org,
linux-bcache@vger.kernel.org,
Liang Chen <liangchen.linux@gmail.com>
Subject: [PATCH 1/2] [PATCH] bcache: cached_dev_free needs to put the sb page
Date: Fri, 6 Dec 2019 16:55:42 +0800 [thread overview]
Message-ID: <1575622543-22470-1-git-send-email-liangchen.linux@gmail.com> (raw)
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>
---
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 77e9869345e7..a573ce1d85aa 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1275,6 +1275,9 @@ 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);
--
2.17.0
next reply other threads:[~2019-12-06 8:56 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-06 8:55 Liang Chen [this message]
2019-12-06 8:55 ` [PATCH 2/2] [PATCH] bcache: __write_super to handle page sizes other than 4k Liang Chen
2019-12-06 9:23 ` Christoph Hellwig
2019-12-06 11:23 ` Liang C
2019-12-06 9:44 ` Coly Li
2019-12-06 11:22 ` Liang C
2019-12-09 7:37 ` Christoph Hellwig
2019-12-09 9:52 ` Coly Li
2019-12-09 10:21 ` Liang C
2019-12-06 9:27 ` [PATCH 1/2] [PATCH] bcache: cached_dev_free needs to put the sb page Christoph Hellwig
2019-12-06 11:27 ` Liang C
2019-12-06 9:42 ` Coly Li
2019-12-06 23:08 ` Eric Wheeler
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