linux-kernel - Re: [PATCH v2] f2fs: fix to avoid page count leak

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Message-ID: <634e3958-ee48-90b1-f32f-60e2bc4ca88e@huawei.com>
Date:   Tue, 21 Apr 2020 10:19:37 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     <jaegeuk@...nel.org>
CC:     <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>, <chao@...nel.org>
Subject: Re: [PATCH v2] f2fs: fix to avoid page count leak

Hi Jaegeuk,

Let's drop this patch, I encounter bad page state (nonzero refcount) reported
by vm w/ this patch.

On 2020/4/15 10:13, Chao Yu wrote:
> In f2fs_read_data_pages(), once we add page into radix tree, we need to
> release reference count of that page, however when f2fs_read_multi_pages()
> fails, we didn't handle that case correctly, fix it.
> 
> Fixes: 4c8ff7095bef ("f2fs: support data compression")
> Signed-off-by: Chao Yu <yuchao0@...wei.com>