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Commit 1973adcb authored by Shen Feng's avatar Shen Feng Committed by Theodore Ts'o
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ext4: Make ext4_ext_find_extent fills ext_path completely 



When pos=0 or depth, the fields of ext4_ext_path is are not
completely filled.  This patch also removes some unnecessary code.

Signed-off-by: default avatarShen Feng <shen@cn.fujitsu.com>
Signed-off-by: default avatarMingming Cao <cmm@us.ibm.com>
Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
parent 787e0981

fs/ext4/extents.c

+4 −1
Original line number Diff line number Diff line
@@ -524,6 +524,7 @@ ext4_ext_find_extent(struct inode *inode, ext4_lblk_t block, 
		alloc = 1;

	}

	path[0].p_hdr = eh;

	path[0].p_bh = NULL;



	i = depth;

	/* walk through the tree */
@@ -552,12 +553,14 @@ ext4_ext_find_extent(struct inode *inode, ext4_lblk_t block, 
	}



	path[ppos].p_depth = i;

	path[ppos].p_hdr = eh;

	path[ppos].p_ext = NULL;

	path[ppos].p_idx = NULL;



	/* find extent */

	ext4_ext_binsearch(inode, path + ppos, block);

	/* if not an empty leaf */

	if (path[ppos].p_ext)

		path[ppos].p_block = ext_pblock(path[ppos].p_ext);



	ext4_ext_show_path(inode, path);