ext4_find_extent(), stripped down to the parts relevant to this patch,
reads as
ppos = 0;
i = depth;
while (i) {
--i;
++ppos;
if (unlikely(ppos > depth)) {
...
ret = -EFSCORRUPTED;
goto err;
}
}
Due to the loop's bounds, the condition ppos > depth can never be met.
Remove this dead code.
Signed-off-by: Nicolai Stange <nicstange@xxxxxxxxx>
---
Applicable to linux-next-20150415.
fs/ext4/extents.c | 7 -------
1 file changed, 7 deletions(-)
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 95bf467..d01a405 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -907,13 +907,6 @@ ext4_find_extent(struct inode *inode, ext4_lblk_t block,
eh = ext_block_hdr(bh);
ppos++;
- if (unlikely(ppos > depth)) {
- put_bh(bh);
- EXT4_ERROR_INODE(inode,
- "ppos %d > depth %d", ppos, depth);
- ret = -EFSCORRUPTED;
- goto err;
- }
path[ppos].p_bh = bh;
path[ppos].p_hdr = eh;
}
--
2.8.1
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