From: Shen Feng <shen@xxxxxxxxxxxxxx> 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: Shen Feng <shen@xxxxxxxxxxxxxx> Signed-off-by: Mingming Cao <cmm@xxxxxxxxxx> Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx> --- fs/ext4/extents.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index bc17ed7..3e966da 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -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); -- 1.5.6.rc3.1.g36b7.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
