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authorAl Viro <viro@zeniv.linux.org.uk>2011-06-27 16:35:45 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2011-07-20 01:44:10 -0400
commit69753a0f14d3cb2e8a70e559ef8d409e4deeac8a (patch)
treee00ca40e65892ff9383bbf2d301d4269dd9327e9 /drivers/base/devtmpfs.c
parent2780f1ff6aec0cf708a61c022d475bfcaa648965 (diff)
switch devtmpfs to kern_path_create()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/base/devtmpfs.c')
-rw-r--r--drivers/base/devtmpfs.c83
1 files changed, 36 insertions, 47 deletions
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index 1a16e1fd7f8..a49897d0532 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -144,27 +144,21 @@ int devtmpfs_delete_node(struct device *dev)
static int dev_mkdir(const char *name, mode_t mode)
{
- struct nameidata nd;
struct dentry *dentry;
+ struct path path;
int err;
- err = kern_path_parent(name, &nd);
- if (err)
- return err;
-
- dentry = lookup_create(&nd, 1);
- if (!IS_ERR(dentry)) {
- err = vfs_mkdir(nd.path.dentry->d_inode, dentry, mode);
- if (!err)
- /* mark as kernel-created inode */
- dentry->d_inode->i_private = &thread;
- dput(dentry);
- } else {
- err = PTR_ERR(dentry);
- }
-
- mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
- path_put(&nd.path);
+ dentry = kern_path_create(AT_FDCWD, name, &path, 1);
+ if (IS_ERR(dentry))
+ return PTR_ERR(dentry);
+
+ err = vfs_mkdir(path.dentry->d_inode, dentry, mode);
+ if (!err)
+ /* mark as kernel-created inode */
+ dentry->d_inode->i_private = &thread;
+ dput(dentry);
+ mutex_unlock(&path.dentry->d_inode->i_mutex);
+ path_put(&path);
return err;
}
@@ -203,42 +197,37 @@ out:
static int handle_create(const char *nodename, mode_t mode, struct device *dev)
{
- struct nameidata nd;
struct dentry *dentry;
+ struct path path;
int err;
- err = kern_path_parent(nodename, &nd);
- if (err == -ENOENT) {
+ dentry = kern_path_create(AT_FDCWD, nodename, &path, 0);
+ if (dentry == ERR_PTR(-ENOENT)) {
create_path(nodename);
- err = kern_path_parent(nodename, &nd);
+ dentry = kern_path_create(AT_FDCWD, nodename, &path, 0);
}
- if (err)
- return err;
-
- dentry = lookup_create(&nd, 0);
- if (!IS_ERR(dentry)) {
- err = vfs_mknod(nd.path.dentry->d_inode,
- dentry, mode, dev->devt);
- if (!err) {
- struct iattr newattrs;
-
- /* fixup possibly umasked mode */
- newattrs.ia_mode = mode;
- newattrs.ia_valid = ATTR_MODE;
- mutex_lock(&dentry->d_inode->i_mutex);
- notify_change(dentry, &newattrs);
- mutex_unlock(&dentry->d_inode->i_mutex);
-
- /* mark as kernel-created inode */
- dentry->d_inode->i_private = &thread;
- }
- dput(dentry);
- } else {
- err = PTR_ERR(dentry);
+ if (IS_ERR(dentry))
+ return PTR_ERR(dentry);
+
+ err = vfs_mknod(path.dentry->d_inode,
+ dentry, mode, dev->devt);
+ if (!err) {
+ struct iattr newattrs;
+
+ /* fixup possibly umasked mode */
+ newattrs.ia_mode = mode;
+ newattrs.ia_valid = ATTR_MODE;
+ mutex_lock(&dentry->d_inode->i_mutex);
+ notify_change(dentry, &newattrs);
+ mutex_unlock(&dentry->d_inode->i_mutex);
+
+ /* mark as kernel-created inode */
+ dentry->d_inode->i_private = &thread;
}
+ dput(dentry);
- mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
- path_put(&nd.path);
+ mutex_unlock(&path.dentry->d_inode->i_mutex);
+ path_put(&path);
return err;
}