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authorAl Viro <viro@zeniv.linux.org.uk>2015-01-22 02:16:49 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2015-01-23 00:22:19 -0500
commitfa14a0b8d2bca1d2226afaa04bdf80200d8e9b03 (patch)
tree49fcb2bac6382b86cf68b777a6e944ccd97bb1f1 /fs/namei.c
parentb1940cd21c0f4abdce101253e860feff547291b0 (diff)
downloadlwn-fa14a0b8d2bca1d2226afaa04bdf80200d8e9b03.tar.gz
lwn-fa14a0b8d2bca1d2226afaa04bdf80200d8e9b03.zip
cut down the number of do_path_lookup() callers
... and don't bother with new struct filename when we already have one Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namei.c')
-rw-r--r--fs/namei.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/fs/namei.c b/fs/namei.c
index bc35b02883bb..73fcf4280d6e 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2046,7 +2046,8 @@ struct dentry *kern_path_locked(const char *name, struct path *path)
{
struct nameidata nd;
struct dentry *d;
- int err = do_path_lookup(AT_FDCWD, name, LOOKUP_PARENT, &nd);
+ struct filename filename = {.name = name};
+ int err = filename_lookup(AT_FDCWD, &filename, LOOKUP_PARENT, &nd);
if (err)
return ERR_PTR(err);
if (nd.last_type != LAST_NORM) {
@@ -3290,7 +3291,7 @@ struct file *do_file_open_root(struct dentry *dentry, struct vfsmount *mnt,
return file;
}
-struct dentry *kern_path_create(int dfd, const char *pathname,
+static struct dentry *filename_create(int dfd, struct filename *name,
struct path *path, unsigned int lookup_flags)
{
struct dentry *dentry = ERR_PTR(-EEXIST);
@@ -3305,7 +3306,7 @@ struct dentry *kern_path_create(int dfd, const char *pathname,
*/
lookup_flags &= LOOKUP_REVAL;
- error = do_path_lookup(dfd, pathname, LOOKUP_PARENT|lookup_flags, &nd);
+ error = filename_lookup(dfd, name, LOOKUP_PARENT|lookup_flags, &nd);
if (error)
return ERR_PTR(error);
@@ -3359,6 +3360,13 @@ out:
path_put(&nd.path);
return dentry;
}
+
+struct dentry *kern_path_create(int dfd, const char *pathname,
+ struct path *path, unsigned int lookup_flags)
+{
+ struct filename filename = {.name = pathname};
+ return filename_create(dfd, &filename, path, lookup_flags);
+}
EXPORT_SYMBOL(kern_path_create);
void done_path_create(struct path *path, struct dentry *dentry)
@@ -3377,7 +3385,7 @@ struct dentry *user_path_create(int dfd, const char __user *pathname,
struct dentry *res;
if (IS_ERR(tmp))
return ERR_CAST(tmp);
- res = kern_path_create(dfd, tmp->name, path, lookup_flags);
+ res = filename_create(dfd, tmp, path, lookup_flags);
putname(tmp);
return res;
}