[PATCH] assorted path_lookup() -> kern_path() conversions

more nameidata eviction

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 9 insertions, 14 deletions

diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index 046e027a4cb1..64d2ba980df4 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -471,31 +471,26 @@ out:
  */
 static int ecryptfs_read_super(struct super_block *sb, const char *dev_name)
 {
+        struct path path;
         int rc;
-        struct nameidata nd;
-        struct dentry *lower_root;
-        struct vfsmount *lower_mnt;
 
-        memset(&nd, 0, sizeof(struct nameidata));
-        rc = path_lookup(dev_name, LOOKUP_FOLLOW | LOOKUP_DIRECTORY, &nd);
+        rc = kern_path(dev_name, LOOKUP_FOLLOW | LOOKUP_DIRECTORY, &path);
         if (rc) {
                 ecryptfs_printk(KERN_WARNING, "path_lookup() failed\n");
                 goto out;
         }
-        lower_root = nd.path.dentry;
-        lower_mnt = nd.path.mnt;
-        ecryptfs_set_superblock_lower(sb, lower_root->d_sb);
-        sb->s_maxbytes = lower_root->d_sb->s_maxbytes;
-        sb->s_blocksize = lower_root->d_sb->s_blocksize;
-        ecryptfs_set_dentry_lower(sb->s_root, lower_root);
-        ecryptfs_set_dentry_lower_mnt(sb->s_root, lower_mnt);
-        rc = ecryptfs_interpose(lower_root, sb->s_root, sb, 0);
+        ecryptfs_set_superblock_lower(sb, path.dentry->d_sb);
+        sb->s_maxbytes = path.dentry->d_sb->s_maxbytes;
+        sb->s_blocksize = path.dentry->d_sb->s_blocksize;
+        ecryptfs_set_dentry_lower(sb->s_root, path.dentry);
+        ecryptfs_set_dentry_lower_mnt(sb->s_root, path.mnt);
+        rc = ecryptfs_interpose(path.dentry, sb->s_root, sb, 0);
         if (rc)
                 goto out_free;
         rc = 0;
         goto out;
 out_free:
-        path_put(&nd.path);
+        path_put(&path);
 out:
         return rc;
 }