Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 9 insertions, 3 deletions

diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 24f609c9ef9..6f3a18f9e17 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -68,6 +68,12 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb)
 
 	sb->s_fs_info = sdp;
 	sdp->sd_vfs = sb;
+	sdp->sd_lkstats = alloc_percpu(struct gfs2_pcpu_lkstats);
+	if (!sdp->sd_lkstats) {
+		kfree(sdp);
+		return NULL;
+	}
+
 	set_bit(SDF_NOJOURNALID, &sdp->sd_flags);
 	gfs2_tune_init(&sdp->sd_tune);
 
@@ -77,7 +83,6 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb)
 	spin_lock_init(&sdp->sd_statfs_spin);
 
 	spin_lock_init(&sdp->sd_rindex_spin);
-	mutex_init(&sdp->sd_rindex_mutex);
 	sdp->sd_rindex_tree.rb_node = NULL;
 
 	INIT_LIST_HEAD(&sdp->sd_jindex_list);
@@ -431,10 +436,9 @@ static int gfs2_lookup_root(struct super_block *sb, struct dentry **dptr,
 		fs_err(sdp, "can't read in %s inode: %ld\n", name, PTR_ERR(inode));
 		return PTR_ERR(inode);
 	}
-	dentry = d_alloc_root(inode);
+	dentry = d_make_root(inode);
 	if (!dentry) {
 		fs_err(sdp, "can't alloc %s dentry\n", name);
-		iput(inode);
 		return -ENOMEM;
 	}
 	*dptr = dentry;
@@ -1221,6 +1225,7 @@ fail_sys:
 	gfs2_sys_fs_del(sdp);
 fail:
 	gfs2_delete_debugfs_file(sdp);
+	free_percpu(sdp->sd_lkstats);
 	kfree(sdp);
 	sb->s_fs_info = NULL;
 	return error;
@@ -1393,6 +1398,7 @@ static void gfs2_kill_sb(struct super_block *sb)
 	shrink_dcache_sb(sb);
 	kill_block_super(sb);
 	gfs2_delete_debugfs_file(sdp);
+	free_percpu(sdp->sd_lkstats);
 	kfree(sdp);
 }