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, 6 insertions, 19 deletions

diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
index 2f0aa0f700e..849357c1045 100644
--- a/drivers/oprofile/oprofilefs.c
+++ b/drivers/oprofile/oprofilefs.c
@@ -117,25 +117,17 @@ static ssize_t ulong_write_file(struct file *file, char const __user *buf, size_
 }
 
 
-static int default_open(struct inode *inode, struct file *filp)
-{
-	if (inode->i_private)
-		filp->private_data = inode->i_private;
-	return 0;
-}
-
-
 static const struct file_operations ulong_fops = {
 	.read		= ulong_read_file,
 	.write		= ulong_write_file,
-	.open		= default_open,
+	.open		= simple_open,
 	.llseek		= default_llseek,
 };
 
 
 static const struct file_operations ulong_ro_fops = {
 	.read		= ulong_read_file,
-	.open		= default_open,
+	.open		= simple_open,
 	.llseek		= default_llseek,
 };
 
@@ -187,7 +179,7 @@ static ssize_t atomic_read_file(struct file *file, char __user *buf, size_t coun
 
 static const struct file_operations atomic_ro_fops = {
 	.read		= atomic_read_file,
-	.open		= default_open,
+	.open		= simple_open,
 	.llseek		= default_llseek,
 };
 
@@ -238,7 +230,6 @@ struct dentry *oprofilefs_mkdir(struct super_block *sb,
 static int oprofilefs_fill_super(struct super_block *sb, void *data, int silent)
 {
 	struct inode *root_inode;
-	struct dentry *root_dentry;
 
 	sb->s_blocksize = PAGE_CACHE_SIZE;
 	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
@@ -251,15 +242,11 @@ static int oprofilefs_fill_super(struct super_block *sb, void *data, int silent)
 		return -ENOMEM;
 	root_inode->i_op = &simple_dir_inode_operations;
 	root_inode->i_fop = &simple_dir_operations;
-	root_dentry = d_alloc_root(root_inode);
-	if (!root_dentry) {
-		iput(root_inode);
+	sb->s_root = d_make_root(root_inode);
+	if (!sb->s_root)
 		return -ENOMEM;
-	}
-
-	sb->s_root = root_dentry;
 
-	oprofile_create_files(sb, root_dentry);
+	oprofile_create_files(sb, sb->s_root);
 
 	// FIXME: verify kill_litter_super removes our dentries
 	return 0;