linux-kernel - Re: [f2fs-dev] [PATCH 1/2] f2fs: deallocate compressed pages when error happens

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Message-ID: <d7268523-aa56-323a-d5a8-bef7fc69f126@kernel.org>
Date:   Tue, 31 Aug 2021 09:57:03 +0800
From:   Chao Yu <chao@...nel.org>
To:     Jaegeuk Kim <jaegeuk@...nel.org>, linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Subject: Re: [f2fs-dev] [PATCH 1/2] f2fs: deallocate compressed pages when
 error happens

On 2021/8/31 8:53, Jaegeuk Kim wrote:
> In f2fs_write_multi_pages(), f2fs_compress_pages() allocates pages for
> compression work in cc->cpages[]. Then, f2fs_write_compressed_pages() initiates
> bio submission. But, if there's any error before submitting the IOs like early
> f2fs_cp_error(), previously it didn't free cpages by f2fs_compress_free_page().
> Let's fix memory leak by putting that just before deallocating cc->cpages.
> 

Fixes: 4c8ff7095bef ("f2fs: support data compression")

> Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>

Reviewed-by: Chao Yu <chao@...nel.org>

Thanks,