linux-kernel - Re: [PATCH v2] erofs: fix memory leak on short-lived bounced pages

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Message-ID: <47790c53-cfe0-4731-99d6-cd6ec2fec9be@kernel.org>
Date:   Thu, 14 Dec 2023 23:00:07 +0800
From:   Chao Yu <chao@...nel.org>
To:     Gao Xiang <hsiangkao@...ux.alibaba.com>,
        linux-erofs@...ts.ozlabs.org
Cc:     LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] erofs: fix memory leak on short-lived bounced pages

On 2023/11/29 2:04, Gao Xiang wrote:
> Both MicroLZMA and DEFLATE algorithms can use short-lived pages on
> demand for overlap inplace I/O decompression.
> 
> However, those short-lived pages are actually added to
> `be->compressed_pages`.  Thus, it should be checked instead of
> `pcl->compressed_bvecs`.
> 
> The LZ4 algorithm doesn't work like this, so it won't be impacted.
> 
> Fixes: 67139e36d970 ("erofs: introduce `z_erofs_parse_in_bvecs'")
> Signed-off-by: Gao Xiang <hsiangkao@...ux.alibaba.com>

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

Thanks,