[PATCH] kill nameidata passing to permission(), rename to inode_permission()

Incidentally, the name that gives hundreds of false positives on grep
is not a good idea...

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

8 files changed, 17 insertions, 21 deletions

diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index f25caf2b0887..89209f00f9c7 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -830,7 +830,7 @@ out:
 static int
 ecryptfs_permission(struct inode *inode, int mask)
 {
-        return permission(ecryptfs_inode_to_lower(inode), mask, NULL);
+        return inode_permission(ecryptfs_inode_to_lower(inode), mask);
 }
 
 /**
diff --git a/fs/namei.c b/fs/namei.c
index 396cb3e5c364..5029b93ebbd5 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -227,13 +227,9 @@ int generic_permission(struct inode *inode, int mask,
         return -EACCES;
 }
 
-int permission(struct inode *inode, int mask, struct nameidata *nd)
+int inode_permission(struct inode *inode, int mask)
 {
         int retval;
-        struct vfsmount *mnt = NULL;
-
-        if (nd)
-                mnt = nd->path.mnt;
 
         if (mask & MAY_WRITE) {
                 umode_t mode = inode->i_mode;
@@ -293,7 +289,7 @@ int permission(struct inode *inode, int mask, struct nameidata *nd)
  */
 int vfs_permission(struct nameidata *nd, int mask)
 {
-        return permission(nd->path.dentry->d_inode, mask, nd);
+        return inode_permission(nd->path.dentry->d_inode, mask);
 }
 
 /**
@@ -310,7 +306,7 @@ int vfs_permission(struct nameidata *nd, int mask)
  */
 int file_permission(struct file *file, int mask)
 {
-        return permission(file->f_path.dentry->d_inode, mask, NULL);
+        return inode_permission(file->f_path.dentry->d_inode, mask);
 }
 
 /*
@@ -1262,7 +1258,7 @@ static struct dentry *lookup_hash(struct nameidata *nd)
 {
         int err;
 
-        err = permission(nd->path.dentry->d_inode, MAY_EXEC, nd);
+        err = inode_permission(nd->path.dentry->d_inode, MAY_EXEC);
         if (err)
                 return ERR_PTR(err);
         return __lookup_hash(&nd->last, nd->path.dentry, nd);
@@ -1310,7 +1306,7 @@ struct dentry *lookup_one_len(const char *name, struct dentry *base, int len)
         if (err)
                 return ERR_PTR(err);
 
-        err = permission(base->d_inode, MAY_EXEC, NULL);
+        err = inode_permission(base->d_inode, MAY_EXEC);
         if (err)
                 return ERR_PTR(err);
         return __lookup_hash(&this, base, NULL);
@@ -1400,7 +1396,7 @@ static int may_delete(struct inode *dir,struct dentry *victim,int isdir)
         BUG_ON(victim->d_parent->d_inode != dir);
         audit_inode_child(victim->d_name.name, victim, dir);
 
-        error = permission(dir,MAY_WRITE | MAY_EXEC, NULL);
+        error = inode_permission(dir, MAY_WRITE | MAY_EXEC);
         if (error)
                 return error;
         if (IS_APPEND(dir))
@@ -1437,7 +1433,7 @@ static inline int may_create(struct inode *dir, struct dentry *child,
                 return -EEXIST;
         if (IS_DEADDIR(dir))
                 return -ENOENT;
-        return permission(dir,MAY_WRITE | MAY_EXEC, nd);
+        return inode_permission(dir, MAY_WRITE | MAY_EXEC);
 }
 
 /* 
@@ -2543,7 +2539,7 @@ static int vfs_rename_dir(struct inode *old_dir, struct dentry *old_dentry,
          * we'll need to flip '..'.
          */
         if (new_dir != old_dir) {
-                error = permission(old_dentry->d_inode, MAY_WRITE, NULL);
+                error = inode_permission(old_dentry->d_inode, MAY_WRITE);
                 if (error)
                         return error;
         }
@@ -2897,7 +2893,7 @@ EXPORT_SYMBOL(page_symlink);
 EXPORT_SYMBOL(page_symlink_inode_operations);
 EXPORT_SYMBOL(path_lookup);
 EXPORT_SYMBOL(vfs_path_lookup);
-EXPORT_SYMBOL(permission);
+EXPORT_SYMBOL(inode_permission);
 EXPORT_SYMBOL(vfs_permission);
 EXPORT_SYMBOL(file_permission);
 EXPORT_SYMBOL(unlock_rename);
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index f45451eb1e38..ea37c96f0445 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -51,7 +51,7 @@ static int nfsd_acceptable(void *expv, struct dentry *dentry)
                 /* make sure parents give x permission to user */
                 int err;
                 parent = dget_parent(tdentry);
-                err = permission(parent->d_inode, MAY_EXEC, NULL);
+                err = inode_permission(parent->d_inode, MAY_EXEC);
                 if (err < 0) {
                         dput(parent);
                         break;
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index ad1ad59e3742..18060bed5267 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1953,12 +1953,12 @@ nfsd_permission(struct svc_rqst *rqstp, struct svc_export *exp,
                 return 0;
 
         /* This assumes  NFSD_MAY_{READ,WRITE,EXEC} == MAY_{READ,WRITE,EXEC} */
-        err = permission(inode, acc & (MAY_READ|MAY_WRITE|MAY_EXEC), NULL);
+        err = inode_permission(inode, acc & (MAY_READ|MAY_WRITE|MAY_EXEC));
 
         /* Allow read access to binaries even when mode 111 */
         if (err == -EACCES && S_ISREG(inode->i_mode) &&
             acc == (NFSD_MAY_READ | NFSD_MAY_OWNER_OVERRIDE))
-                err = permission(inode, MAY_EXEC, NULL);
+                err = inode_permission(inode, MAY_EXEC);
 
         return err? nfserrno(err) : 0;
 }
diff --git a/fs/utimes.c b/fs/utimes.c
index dad679d3a158..dc28b7826259 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -96,7 +96,7 @@ static int utimes_common(struct path *path, struct timespec *times)
                         goto mnt_drop_write_and_out;
 
                 if (!is_owner_or_cap(inode)) {
-                        error = permission(inode, MAY_WRITE, NULL);
+                        error = inode_permission(inode, MAY_WRITE);
                         if (error)
                                 goto mnt_drop_write_and_out;
                 }
diff --git a/fs/xattr.c b/fs/xattr.c
index 4706a8b1f495..b96222e05ba0 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -63,7 +63,7 @@ xattr_permission(struct inode *inode, const char *name, int mask)
                         return -EPERM;
         }
 
-        return permission(inode, mask, NULL);
+        return inode_permission(inode, mask);
 }
 
 int
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 527b9e482f99..9d2de4cadabd 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1770,7 +1770,7 @@ extern int do_remount_sb(struct super_block *sb, int flags,
 extern sector_t bmap(struct inode *, sector_t);
 #endif
 extern int notify_change(struct dentry *, struct iattr *);
-extern int permission(struct inode *, int, struct nameidata *);
+extern int inode_permission(struct inode *, int);
 extern int generic_permission(struct inode *, int,
                 int (*check_acl)(struct inode *, int));
 
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 474984f9e032..96fb36cd9874 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -638,7 +638,7 @@ static int oflag2acc[O_ACCMODE] = { MAY_READ, MAY_WRITE,
                 return ERR_PTR(-EINVAL);
         }
 
-        if (permission(dentry->d_inode, oflag2acc[oflag & O_ACCMODE], NULL)) {
+        if (inode_permission(dentry->d_inode, oflag2acc[oflag & O_ACCMODE])) {
                 dput(dentry);
                 mntput(mqueue_mnt);
                 return ERR_PTR(-EACCES);