Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (57 commits)
  [GFS2] make gfs2_writepages() static
  [GFS2] Unlock page on prepare_write try lock failure
  [GFS2] nfsd readdirplus assertion failure
  [DLM] fix softlockup in dlm_recv
  [DLM] zero new user lvbs
  [DLM/GFS2] indent help text
  [GFS2] Fix unlink deadlocks
  [GFS2] Put back semaphore to avoid umount problem
  [GFS2] more CURRENT_TIME_SEC
  [GFS2/DLM] fix GFS2 circular dependency
  [GFS2/DLM] use sysfs
  [GFS2] make lock_dlm drop_count tunable in sysfs
  [GFS2] increase default lock limit
  [GFS2] Fix list corruption in lops.c
  [GFS2] Fix recursive locking attempt with NFS
  [DLM] can miss clearing resend flag
  [DLM] saved dlm message can be dropped
  [DLM] Make sock_sem into a mutex
  [GFS2] Fix typo in glock.c
  [GFS2] use CURRENT_TIME_SEC instead of get_seconds in gfs2
  ...

1 files changed, 43 insertions, 12 deletions

diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c
index 636dda4c7d3..f40a84807d7 100644
--- a/fs/gfs2/ops_inode.c
+++ b/fs/gfs2/ops_inode.c
@@ -264,13 +264,23 @@ static int gfs2_unlink(struct inode *dir, struct dentry *dentry)
 	struct gfs2_inode *dip = GFS2_I(dir);
 	struct gfs2_sbd *sdp = GFS2_SB(dir);
 	struct gfs2_inode *ip = GFS2_I(dentry->d_inode);
-	struct gfs2_holder ghs[2];
+	struct gfs2_holder ghs[3];
+	struct gfs2_rgrpd *rgd;
+	struct gfs2_holder ri_gh;
 	int error;
 
+	error = gfs2_rindex_hold(sdp, &ri_gh);
+	if (error)
+		return error;
+
 	gfs2_holder_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs);
-	gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1);
+	gfs2_holder_init(ip->i_gl,  LM_ST_EXCLUSIVE, 0, ghs + 1);
 
-	error = gfs2_glock_nq_m(2, ghs);
+	rgd = gfs2_blk2rgrpd(sdp, ip->i_num.no_addr);
+	gfs2_holder_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, ghs + 2);
+
+
+	error = gfs2_glock_nq_m(3, ghs);
 	if (error)
 		goto out;
 
@@ -291,10 +301,12 @@ static int gfs2_unlink(struct inode *dir, struct dentry *dentry)
 out_end_trans:
 	gfs2_trans_end(sdp);
 out_gunlock:
-	gfs2_glock_dq_m(2, ghs);
+	gfs2_glock_dq_m(3, ghs);
 out:
 	gfs2_holder_uninit(ghs);
 	gfs2_holder_uninit(ghs + 1);
+	gfs2_holder_uninit(ghs + 2);
+	gfs2_glock_dq_uninit(&ri_gh);
 	return error;
 }
 
@@ -449,13 +461,22 @@ static int gfs2_rmdir(struct inode *dir, struct dentry *dentry)
 	struct gfs2_inode *dip = GFS2_I(dir);
 	struct gfs2_sbd *sdp = GFS2_SB(dir);
 	struct gfs2_inode *ip = GFS2_I(dentry->d_inode);
-	struct gfs2_holder ghs[2];
+	struct gfs2_holder ghs[3];
+	struct gfs2_rgrpd *rgd;
+	struct gfs2_holder ri_gh;
 	int error;
 
+
+	error = gfs2_rindex_hold(sdp, &ri_gh);
+	if (error)
+		return error;
 	gfs2_holder_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs);
 	gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1);
 
-	error = gfs2_glock_nq_m(2, ghs);
+	rgd = gfs2_blk2rgrpd(sdp, ip->i_num.no_addr);
+	gfs2_holder_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, ghs + 2);
+
+	error = gfs2_glock_nq_m(3, ghs);
 	if (error)
 		goto out;
 
@@ -483,10 +504,12 @@ static int gfs2_rmdir(struct inode *dir, struct dentry *dentry)
 	gfs2_trans_end(sdp);
 
 out_gunlock:
-	gfs2_glock_dq_m(2, ghs);
+	gfs2_glock_dq_m(3, ghs);
 out:
 	gfs2_holder_uninit(ghs);
 	gfs2_holder_uninit(ghs + 1);
+	gfs2_holder_uninit(ghs + 2);
+	gfs2_glock_dq_uninit(&ri_gh);
 	return error;
 }
 
@@ -547,7 +570,8 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
 	struct gfs2_inode *ip = GFS2_I(odentry->d_inode);
 	struct gfs2_inode *nip = NULL;
 	struct gfs2_sbd *sdp = GFS2_SB(odir);
-	struct gfs2_holder ghs[4], r_gh;
+	struct gfs2_holder ghs[5], r_gh;
+	struct gfs2_rgrpd *nrgd;
 	unsigned int num_gh;
 	int dir_rename = 0;
 	int alloc_required;
@@ -587,6 +611,13 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
 	if (nip) {
 		gfs2_holder_init(nip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + num_gh);
 		num_gh++;
+		/* grab the resource lock for unlink flag twiddling 
+		 * this is the case of the target file already existing
+		 * so we unlink before doing the rename
+		 */
+		nrgd = gfs2_blk2rgrpd(sdp, nip->i_num.no_addr);
+		if (nrgd)
+			gfs2_holder_init(nrgd->rd_gl, LM_ST_EXCLUSIVE, 0, ghs + num_gh++);
 	}
 
 	error = gfs2_glock_nq_m(num_gh, ghs);
@@ -684,12 +715,12 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
 		error = gfs2_trans_begin(sdp, sdp->sd_max_dirres +
 					 al->al_rgd->rd_ri.ri_length +
 					 4 * RES_DINODE + 4 * RES_LEAF +
-					 RES_STATFS + RES_QUOTA, 0);
+					 RES_STATFS + RES_QUOTA + 4, 0);
 		if (error)
 			goto out_ipreserv;
 	} else {
 		error = gfs2_trans_begin(sdp, 4 * RES_DINODE +
-					 5 * RES_LEAF, 0);
+					 5 * RES_LEAF + 4, 0);
 		if (error)
 			goto out_gunlock;
 	}
@@ -728,7 +759,7 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
 		error = gfs2_meta_inode_buffer(ip, &dibh);
 		if (error)
 			goto out_end_trans;
-		ip->i_inode.i_ctime.tv_sec = get_seconds();
+		ip->i_inode.i_ctime = CURRENT_TIME_SEC;
 		gfs2_trans_add_bh(ip->i_gl, dibh, 1);
 		gfs2_dinode_out(ip, dibh->b_data);
 		brelse(dibh);
@@ -1018,7 +1049,7 @@ static int gfs2_getattr(struct vfsmount *mnt, struct dentry *dentry,
 	}
 
 	generic_fillattr(inode, stat);
-	if (unlock);
+	if (unlock)
 		gfs2_glock_dq_uninit(&gh);
 
 	return 0;