Make set_fs_{root,pwd} take a struct path

In nearly all cases the set_fs_{root,pwd}() calls work on a struct
path. Change the function to reflect this and use path_get() here.

Signed-off-by: Jan Blunck <jblunck@suse.de>
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 8 deletions

diff --git a/fs/open.c b/fs/open.c
index ca8ac4bbd3bd..54198538b67e 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -490,7 +490,7 @@ asmlinkage long sys_chdir(const char __user * filename)
         if (error)
                 goto dput_and_out;
 
-        set_fs_pwd(current->fs, nd.path.mnt, nd.path.dentry);
+        set_fs_pwd(current->fs, &nd.path);
 
 dput_and_out:
         path_put(&nd.path);
@@ -501,9 +501,7 @@ out:
 asmlinkage long sys_fchdir(unsigned int fd)
 {
         struct file *file;
-        struct dentry *dentry;
         struct inode *inode;
-        struct vfsmount *mnt;
         int error;
 
         error = -EBADF;
@@ -511,9 +509,7 @@ asmlinkage long sys_fchdir(unsigned int fd)
         if (!file)
                 goto out;
 
-        dentry = file->f_path.dentry;
-        mnt = file->f_path.mnt;
-        inode = dentry->d_inode;
+        inode = file->f_path.dentry->d_inode;
 
         error = -ENOTDIR;
         if (!S_ISDIR(inode->i_mode))
@@ -521,7 +517,7 @@ asmlinkage long sys_fchdir(unsigned int fd)
 
         error = file_permission(file, MAY_EXEC);
         if (!error)
-                set_fs_pwd(current->fs, mnt, dentry);
+                set_fs_pwd(current->fs, &file->f_path);
 out_putf:
         fput(file);
 out:
@@ -545,7 +541,7 @@ asmlinkage long sys_chroot(const char __user * filename)
         if (!capable(CAP_SYS_CHROOT))
                 goto dput_and_out;
 
-        set_fs_root(current->fs, nd.path.mnt, nd.path.dentry);
+        set_fs_root(current->fs, &nd.path);
         set_fs_altroot();
         error = 0;
 dput_and_out: