From: Steven Whitehouse <swhiteho@redhat.com>
Date: Tue, 16 May 2006 17:37:11 +0000 (-0400)
Subject: [GFS2] Fix ref count bug that used to bite us on umount
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=64c14ea73b58e2c3759682d67eeb00d088355f08;p=deliverable%2Flinux.git

[GFS2] Fix ref count bug that used to bite us on umount

The ref count of certain glock's got elevated too far during unlink
which caused umount to fail. This fixes it.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 5522fa747297..5bc9542c7fcb 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -297,19 +297,13 @@ static int inode_create(struct gfs2_glock *i_gl, const struct gfs2_inum *inum,
 	if (!ip)
 		return -ENOMEM;
 	memset(ip, 0, sizeof(struct gfs2_inode));
-
 	ip->i_num = *inum;
-
 	atomic_set(&ip->i_count, 1);
-
 	ip->i_vn = i_gl->gl_vn - 1;
-
 	ip->i_gl = i_gl;
 	ip->i_sbd = sdp;
-
 	spin_lock_init(&ip->i_spin);
 	init_rwsem(&ip->i_rw_mutex);
-
 	ip->i_greedy = gfs2_tune_get(sdp, gt_greedy_default);
 
 	if (need_lock) {
@@ -318,27 +312,23 @@ static int inode_create(struct gfs2_glock *i_gl, const struct gfs2_inum *inum,
 					   &ip->i_iopen_gh);
 		if (error)
 			goto fail;
-	}
 
-	spin_lock(&io_gl->gl_spin);
-	gfs2_glock_hold(i_gl);
-	io_gl->gl_object = i_gl;
-	spin_unlock(&io_gl->gl_spin);
+		spin_lock(&io_gl->gl_spin);
+		gfs2_glock_hold(i_gl);
+		io_gl->gl_object = i_gl;
+		spin_unlock(&io_gl->gl_spin);
+	}
 
 	gfs2_glock_hold(i_gl);
 	i_gl->gl_object = ip;
-
 	atomic_inc(&sdp->sd_inode_count);
-
 	*ipp = ip;
-
 	return 0;
 
- fail:
+fail:
 	gfs2_meta_cache_flush(ip);
 	kmem_cache_free(gfs2_inode_cachep, ip);
 	*ipp = NULL;
-
 	return error;
 }