From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>, Yue Hu <huyue2@coolpad.com>,
Gao Xiang <hsiangkao@linux.alibaba.com>,
linux-erofs@lists.ozlabs.org
Subject: [PATCH AUTOSEL 6.1 09/14] erofs: fix ztailpacking for subpage compressed blocks
Date: Mon, 15 Jan 2024 19:24:51 -0500 [thread overview]
Message-ID: <20240116002512.215607-9-sashal@kernel.org> (raw)
In-Reply-To: <20240116002512.215607-1-sashal@kernel.org>
From: Gao Xiang <hsiangkao@linux.alibaba.com>
[ Upstream commit e5aba911dee5e20fa82efbe13e0af8f38ea459e7 ]
`pageofs_in` should be the compressed data offset of the page rather
than of the block.
Acked-by: Chao Yu <chao@kernel.org>
Reviewed-by: Yue Hu <huyue2@coolpad.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20231214161337.753049-1-hsiangkao@linux.alibaba.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/erofs/zdata.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 1b91ac5be961..914897d9aeac 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -652,7 +652,6 @@ static int z_erofs_register_pcluster(struct z_erofs_decompress_frontend *fe)
if (ztailpacking) {
pcl->obj.index = 0; /* which indicates ztailpacking */
- pcl->pageofs_in = erofs_blkoff(map->m_pa);
pcl->tailpacking_size = map->m_plen;
} else {
pcl->obj.index = map->m_pa >> PAGE_SHIFT;
@@ -852,6 +851,7 @@ static int z_erofs_do_read_page(struct z_erofs_decompress_frontend *fe,
get_page(fe->map.buf.page);
WRITE_ONCE(fe->pcl->compressed_bvecs[0].page,
fe->map.buf.page);
+ fe->pcl->pageofs_in = map->m_pa & ~PAGE_MASK;
fe->mode = Z_EROFS_PCLUSTER_FOLLOWED_NOINPLACE;
} else {
/* bind cache first when cached decompression is preferred */
--
2.43.0
parent reply other threads:[~2024-01-16 0:25 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20240116002512.215607-1-sashal@kernel.org>]
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