[GFS2] Finally get ref counting correct
The last patch missed some other instances of incorrect ref counting,
this fixes all of those too.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index 316eed6..100672d 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -776,9 +776,9 @@
goto got_dent;
leaf = (struct gfs2_leaf *)bh->b_data;
ln = be64_to_cpu(leaf->lf_next);
- brelse(bh);
if (!ln)
break;
+ brelse(bh);
error = get_leaf(ip, ln, &bh);
} while(!error);
@@ -789,9 +789,11 @@
if (error)
return ERR_PTR(error);
dent = gfs2_dirent_scan(inode, bh->b_data, bh->b_size, scan, name, NULL);
- brelse(bh);
-
got_dent:
+ if (unlikely(IS_ERR(dent))) {
+ brelse(bh);
+ bh = NULL;
+ }
*pbh = bh;
return dent;
}
@@ -1475,6 +1477,7 @@
brelse(bh);
return 0;
}
+ brelse(bh);
return -ENOENT;
}
@@ -1616,6 +1619,7 @@
previous entry otherwise */
dent = gfs2_dirent_search(dip->i_vnode, name, gfs2_dirent_prev, &bh);
if (!dent) {
+ brelse(bh);
gfs2_consist_inode(dip);
return -EIO;
}
@@ -1636,8 +1640,8 @@
if (!entries)
gfs2_consist_inode(dip);
leaf->lf_entries = cpu_to_be16(--entries);
- brelse(bh);
}
+ brelse(bh);
error = gfs2_meta_inode_buffer(dip, &bh);
if (error)
@@ -1676,6 +1680,7 @@
dent = gfs2_dirent_search(dip->i_vnode, filename, gfs2_dirent_find, &bh);
if (!dent) {
+ brelse(bh);
gfs2_consist_inode(dip);
return -EIO;
}
@@ -1955,8 +1960,10 @@
struct buffer_head *bh;
dent = gfs2_dirent_search(inode, name, gfs2_dirent_find_space, &bh);
- if (!dent)
+ if (!dent) {
+ brelse(bh);
return 1;
+ }
if (IS_ERR(dent))
return PTR_ERR(dent);
brelse(bh);
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index cadfef1..0b26d6a 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -196,7 +196,6 @@
void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks)
{
- up_read(&sdp->sd_log_flush_lock);
gfs2_log_lock(sdp);
sdp->sd_log_blks_free += blks;
@@ -204,6 +203,7 @@
gfs2_assert_withdraw(sdp,
sdp->sd_log_blks_free <= sdp->sd_jdesc->jd_blocks);
gfs2_log_unlock(sdp);
+ up_read(&sdp->sd_log_flush_lock);
}
static uint64_t log_bmap(struct gfs2_sbd *sdp, unsigned int lbn)