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authorAl Viro <viro@zeniv.linux.org.uk>2013-07-19 15:58:27 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2013-09-03 22:52:47 -0400
commitecde28237e10de3750a97579f42bc2ec65b8a0e1 (patch)
treefb893491060703f58c982ed73a6c5c4886188bb4 /drivers/oprofile
parent40437c718a69562bafaf9e5c9d17b6628e2576b1 (diff)
downloadkernel-ecde28237e10de3750a97579f42bc2ec65b8a0e1.tar.gz
oprofilefs_mkdir() doesn't need superblock argument
it's always equal to ->d_sb of the second argument (parent dentry), due to either being literally that, or ->d_sb of parent's parent. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/oprofile')
-rw-r--r--drivers/oprofile/oprofile_perf.c2
-rw-r--r--drivers/oprofile/oprofile_stats.c4
-rw-r--r--drivers/oprofile/oprofilefs.c15
3 files changed, 10 insertions, 11 deletions
diff --git a/drivers/oprofile/oprofile_perf.c b/drivers/oprofile/oprofile_perf.c
index 52ad942df04e..923a245774fa 100644
--- a/drivers/oprofile/oprofile_perf.c
+++ b/drivers/oprofile/oprofile_perf.c
@@ -147,7 +147,7 @@ static int oprofile_perf_create_files(struct dentry *root)
char buf[4];
snprintf(buf, sizeof buf, "%d", i);
- dir = oprofilefs_mkdir(root->d_sb, root, buf);
+ dir = oprofilefs_mkdir(root, buf);
oprofilefs_create_ulong(root->d_sb, dir, "enabled", &counter_config[i].enabled);
oprofilefs_create_ulong(root->d_sb, dir, "event", &counter_config[i].event);
oprofilefs_create_ulong(root->d_sb, dir, "count", &counter_config[i].count);
diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c
index 627dce478311..8cf2fa9710a4 100644
--- a/drivers/oprofile/oprofile_stats.c
+++ b/drivers/oprofile/oprofile_stats.c
@@ -46,14 +46,14 @@ void oprofile_create_stats_files(struct dentry *root)
char buf[10];
int i;
- dir = oprofilefs_mkdir(root->d_sb, root, "stats");
+ dir = oprofilefs_mkdir(root, "stats");
if (!dir)
return;
for_each_possible_cpu(i) {
cpu_buf = &per_cpu(op_cpu_buffer, i);
snprintf(buf, 10, "cpu%d", i);
- cpudir = oprofilefs_mkdir(root->d_sb, dir, buf);
+ cpudir = oprofilefs_mkdir(dir, buf);
/* Strictly speaking access to these ulongs is racy,
* but we can't simply lock them, and they are
diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
index 2e2dd5ca7211..6a345724637f 100644
--- a/drivers/oprofile/oprofilefs.c
+++ b/drivers/oprofile/oprofilefs.c
@@ -211,28 +211,27 @@ int oprofilefs_create_file_perm(struct super_block *sb, struct dentry *root,
}
-struct dentry *oprofilefs_mkdir(struct super_block *sb,
- struct dentry *root, char const *name)
+struct dentry *oprofilefs_mkdir(struct dentry *parent, char const *name)
{
struct dentry *dentry;
struct inode *inode;
- mutex_lock(&root->d_inode->i_mutex);
- dentry = d_alloc_name(root, name);
+ mutex_lock(&parent->d_inode->i_mutex);
+ dentry = d_alloc_name(parent, name);
if (!dentry) {
- mutex_unlock(&root->d_inode->i_mutex);
+ mutex_unlock(&parent->d_inode->i_mutex);
return NULL;
}
- inode = oprofilefs_get_inode(sb, S_IFDIR | 0755);
+ inode = oprofilefs_get_inode(parent->d_sb, S_IFDIR | 0755);
if (!inode) {
dput(dentry);
- mutex_unlock(&root->d_inode->i_mutex);
+ mutex_unlock(&parent->d_inode->i_mutex);
return NULL;
}
inode->i_op = &simple_dir_inode_operations;
inode->i_fop = &simple_dir_operations;
d_add(dentry, inode);
- mutex_unlock(&root->d_inode->i_mutex);
+ mutex_unlock(&parent->d_inode->i_mutex);
return dentry;
}