From: Qu Wenruo <wqu@suse.com>
To: linux-btrfs@vger.kernel.org
Subject: [PATCH v3 1/3] btrfs: block-group: Fix a memory leak due to missing btrfs_put_block_group()
Date: Thu, 10 Oct 2019 10:39:26 +0800 [thread overview]
Message-ID: <20191010023928.24586-2-wqu@suse.com> (raw)
In-Reply-To: <20191010023928.24586-1-wqu@suse.com>
In btrfs_read_block_groups(), if we have an invalid block group which
has mixed type (DATA|METADATA) while the fs doesn't have MIX_BGS
feature, we error out without freeing the block group cache.
This patch will add the missing btrfs_put_block_group() to prevent
memory leak.
Fixes: 49303381f19a ("Btrfs: bail out if block group has different mixed flag")
Signed-off-by: Qu Wenruo <wqu@suse.com>
---
fs/btrfs/block-group.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c
index bf7e3f23bba7..c906a2b6c2cf 100644
--- a/fs/btrfs/block-group.c
+++ b/fs/btrfs/block-group.c
@@ -1762,6 +1762,7 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info)
"bg %llu is a mixed block group but filesystem hasn't enabled mixed block groups",
cache->key.objectid);
ret = -EINVAL;
+ btrfs_put_block_group(cache);
goto error;
}
--
2.23.0
next prev parent reply other threads:[~2019-10-10 2:39 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-10 2:39 [PATCH v3 0/3] btrfs: Introduce new incompat feature BG_TREE to hugely reduce mount time Qu Wenruo
2019-10-10 2:39 ` Qu Wenruo [this message]
2019-10-10 2:51 ` [PATCH v3 1/3] btrfs: block-group: Fix a memory leak due to missing btrfs_put_block_group() Anand Jain
2019-10-10 7:20 ` Johannes Thumshirn
2019-10-11 19:23 ` David Sterba
2019-10-10 2:39 ` [PATCH v3 2/3] btrfs: block-group: Refactor btrfs_read_block_groups() Qu Wenruo
2019-10-10 2:52 ` Anand Jain
2019-10-30 4:59 ` Qu WenRuo
2019-11-04 19:53 ` David Sterba
2019-11-04 21:44 ` David Sterba
2019-11-05 0:47 ` Qu Wenruo
2019-11-04 19:55 ` David Sterba
2019-10-10 2:39 ` [PATCH v3 3/3] btrfs: Introduce new incompat feature, BG_TREE, to speed up mount time Qu Wenruo
2019-10-10 5:21 ` Naohiro Aota
2019-10-11 13:23 ` Josef Bacik
2019-10-14 9:08 ` Anand Jain
2019-10-10 2:40 ` [PATCH v3 0/3] btrfs: Introduce new incompat feature BG_TREE to hugely reduce " Qu WenRuo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20191010023928.24586-2-wqu@suse.com \
--to=wqu@suse.com \
--cc=linux-btrfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).