diff options
| -rw-r--r-- | fs/gfs2/bmap.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c index 22ad413213ca..834cd9442a1d 100644 --- a/fs/gfs2/bmap.c +++ b/fs/gfs2/bmap.c @@ -831,7 +831,7 @@ static int recursive_scan(struct gfs2_inode *ip, struct buffer_head *dibh, { struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); struct buffer_head *bh = NULL; - __be64 *top, *bottom; + __be64 *top, *bottom, *t2; u64 bn; int error; int mh_size = sizeof(struct gfs2_meta_header); @@ -859,7 +859,27 @@ static int recursive_scan(struct gfs2_inode *ip, struct buffer_head *dibh, if (error) goto out; - if (height < ip->i_height - 1) + if (height < ip->i_height - 1) { + struct buffer_head *rabh; + + for (t2 = top; t2 < bottom; t2++, first = 0) { + if (!*t2) + continue; + + bn = be64_to_cpu(*t2); + rabh = gfs2_getbuf(ip->i_gl, bn, CREATE); + if (trylock_buffer(rabh)) { + if (buffer_uptodate(rabh)) { + unlock_buffer(rabh); + brelse(rabh); + continue; + } + rabh->b_end_io = end_buffer_read_sync; + submit_bh(READA | REQ_META, rabh); + continue; + } + brelse(rabh); + } for (; top < bottom; top++, first = 0) { if (!*top) continue; @@ -871,7 +891,7 @@ static int recursive_scan(struct gfs2_inode *ip, struct buffer_head *dibh, if (error) break; } - + } out: brelse(bh); return error; |