diff options
Diffstat (limited to 'fs/gfs2/bmap.c')
-rw-r--r-- | fs/gfs2/bmap.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c index fd5bea55fd60..9c418249734d 100644 --- a/fs/gfs2/bmap.c +++ b/fs/gfs2/bmap.c @@ -1652,10 +1652,16 @@ static int punch_hole(struct gfs2_inode *ip, u64 offset, u64 length) if (ret < 0) goto out; - /* issue read-ahead on metadata */ - if (mp.mp_aheight > 1) { - for (; ret > 1; ret--) { - metapointer_range(&mp, mp.mp_aheight - ret, + /* On the first pass, issue read-ahead on metadata. */ + if (mp.mp_aheight > 1 && strip_h == ip->i_height - 1) { + unsigned int height = mp.mp_aheight - 1; + + /* No read-ahead for data blocks. */ + if (mp.mp_aheight - 1 == strip_h) + height--; + + for (; height >= mp.mp_aheight - ret; height--) { + metapointer_range(&mp, height, start_list, start_aligned, end_list, end_aligned, &start, &end); |