From: Chao Yu <yuchao0@huawei.com>
To: <jaegeuk@kernel.org>
Cc: <linux-f2fs-devel@lists.sourceforge.net>,
<linux-kernel@vger.kernel.org>, <chao@kernel.org>
Subject: Re: [PATCH] f2fs: compress: fix to avoid memory leak on cc->cpages
Date: Mon, 20 Jul 2020 20:28:35 +0800 [thread overview]
Message-ID: <a24a282f-895f-39b1-181b-1208d6f1803c@huawei.com> (raw)
In-Reply-To: <20200720085250.47279-1-yuchao0@huawei.com>
On 2020/7/20 16:52, Chao Yu wrote:
> Memory allocated for storing compressed pages' poitner should be
> released after f2fs_write_compressed_pages(), otherwise it will
> cause memory leak issue.
Jaegeuk,
Please help to add below tag when merging, thanks.
Fixes: 4c8ff7095bef ("f2fs: support data compression")
>
> Signed-off-by: Chao Yu <yuchao0@huawei.com>
> ---
> fs/f2fs/compress.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
> index 3a847bc36748..a20c9f3272af 100644
> --- a/fs/f2fs/compress.c
> +++ b/fs/f2fs/compress.c
> @@ -1385,6 +1385,8 @@ int f2fs_write_multi_pages(struct compress_ctx *cc,
> err = f2fs_write_compressed_pages(cc, submitted,
> wbc, io_type);
> cops->destroy_compress_ctx(cc);
> + kfree(cc->cpages);
> + cc->cpages = NULL;
> if (!err)
> return 0;
> f2fs_bug_on(F2FS_I_SB(cc->inode), err != -EAGAIN);
>
prev parent reply other threads:[~2020-07-20 12:28 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-20 8:52 [PATCH] f2fs: compress: fix to avoid memory leak on cc->cpages Chao Yu
2020-07-20 12:28 ` Chao Yu [this message]
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=a24a282f-895f-39b1-181b-1208d6f1803c@huawei.com \
--to=yuchao0@huawei.com \
--cc=chao@kernel.org \
--cc=jaegeuk@kernel.org \
--cc=linux-f2fs-devel@lists.sourceforge.net \
--cc=linux-kernel@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).