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.co... 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 a7e6847f6f8f..c9ae96467d98 100644 --- a/fs/erofs/zdata.c +++ b/fs/erofs/zdata.c @@ -815,7 +815,6 @@ 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(fe->inode->i_sb, map->m_pa); pcl->tailpacking_size = map->m_plen; } else { pcl->obj.index = map->m_pa >> PAGE_SHIFT; @@ -893,6 +892,7 @@ static int z_erofs_pcluster_begin(struct z_erofs_decompress_frontend *fe) } get_page(map->buf.page); WRITE_ONCE(fe->pcl->compressed_bvecs[0].page, map->buf.page); + fe->pcl->pageofs_in = map->m_pa & ~PAGE_MASK; fe->mode = Z_EROFS_PCLUSTER_FOLLOWED_NOINPLACE; } /* file-backed inplace I/O pages are traversed in reverse order */