Commit d6421a46 authored Aug 21, 2018 by Gao Xiang Committed by Greg Kroah-Hartman Aug 27, 2018

staging: erofs: fix compression mapping beyond EOF



Logical address of EOF LTP mapping should start at
`inode->i_size' rather than `inode->i_size - 1' to
`m_la(in)', fix it.

Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 390c642e

drivers/staging/erofs/unzip_vle.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1548,7 +1548,7 @@ int z_erofs_map_blocks_iter(struct inode *inode,
		if (unlikely(map->m_la >= inode->i_size)) {
		BUG_ON(!initial);
		map->m_llen = map->m_la + 1 - inode->i_size;
		map->m_la = inode->i_size - 1;
		map->m_la = inode->i_size;
		map->m_flags = 0;
		goto out;
		}

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