pid namespaces: round up the API

[linux-2.6] / fs / namei.c

diff --git a/fs/namei.c b/fs/namei.c
index 2792e0ca01d4f03effa44a304e477da9b5e706c0..1e5c7166916415b53abf5908e045dcb28f6bc072 100644 (file)
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -228,6 +228,10 @@ int generic_permission(struct inode *inode, int mask,
 int permission(struct inode *inode, int mask, struct nameidata *nd)
 {
        int retval, submask;
+       struct vfsmount *mnt = NULL;
+
+       if (nd)
+               mnt = nd->mnt;
 
        if (mask & MAY_WRITE) {
                umode_t mode = inode->i_mode;
@@ -251,7 +255,7 @@ int permission(struct inode *inode, int mask, struct nameidata *nd)
                 * MAY_EXEC on regular files is denied if the fs is mounted
                 * with the "noexec" flag.
                 */
-               if (nd && nd->mnt && (nd->mnt->mnt_flags & MNT_NOEXEC))
+               if (mnt && (mnt->mnt_flags & MNT_NOEXEC))
                        return -EACCES;
        }
 
@@ -1604,10 +1608,6 @@ int may_open(struct nameidata *nd, int acc_mode, int flag)
        if (S_ISDIR(inode->i_mode) && (flag & FMODE_WRITE))
                return -EISDIR;
 
-       error = vfs_permission(nd, acc_mode);
-       if (error)
-               return error;
-
        /*
         * FIFO's, sockets and device files are special: they don't
         * actually live on the filesystem itself, and as such you
@@ -1622,6 +1622,10 @@ int may_open(struct nameidata *nd, int acc_mode, int flag)
                flag &= ~O_TRUNC;
        } else if (IS_RDONLY(inode) && (flag & FMODE_WRITE))
                return -EROFS;
+
+       error = vfs_permission(nd, acc_mode);
+       if (error)
+               return error;
        /*
         * An append-only file must be opened in append mode for writing.
         */
@@ -1655,8 +1659,10 @@ int may_open(struct nameidata *nd, int acc_mode, int flag)
                error = locks_verify_locked(inode);
                if (!error) {
                        DQUOT_INIT(inode);
-                       
-                       error = do_truncate(dentry, 0, ATTR_MTIME|ATTR_CTIME, NULL);
+
+                       error = do_truncate(dentry, 0,
+                                           ATTR_MTIME|ATTR_CTIME|ATTR_OPEN,
+                                           NULL);
                }
                put_write_access(inode);
                if (error)