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oprofilefs_mkdir() doesn't need superblock argument

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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>
This commit is contained in:
Al Viro
2013-07-19 15:58:27 +04:00
parent 40437c718a
commit ecde28237e
11 changed files with 21 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/oprofile/oprofile_perf.c
+1 -1
View File
@@ -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);
drivers/oprofile/oprofile_stats.c
+2 -2
View File
@@ -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
drivers/oprofile/oprofilefs.c
+7 -8
View File
@@ -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;
}