switch shmem to inode->i_acl
Al Viro [Mon, 8 Jun 2009 23:56:00 +0000 (19:56 -0400)]
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

include/linux/shmem_fs.h
mm/shmem.c
mm/shmem_acl.c

index fd83f25..abff6c9 100644 (file)
@@ -19,10 +19,6 @@ struct shmem_inode_info {
        swp_entry_t             i_direct[SHMEM_NR_DIRECT]; /* first blocks */
        struct list_head        swaplist;       /* chain of maybes on swap */
        struct inode            vfs_inode;
-#ifdef CONFIG_TMPFS_POSIX_ACL
-       struct posix_acl        *i_acl;
-       struct posix_acl        *i_default_acl;
-#endif
 };
 
 struct shmem_sb_info {
@@ -45,7 +41,6 @@ static inline struct shmem_inode_info *SHMEM_I(struct inode *inode)
 #ifdef CONFIG_TMPFS_POSIX_ACL
 int shmem_permission(struct inode *, int);
 int shmem_acl_init(struct inode *, struct inode *);
-void shmem_acl_destroy_inode(struct inode *);
 
 extern struct xattr_handler shmem_xattr_acl_access_handler;
 extern struct xattr_handler shmem_xattr_acl_default_handler;
@@ -57,9 +52,6 @@ static inline int shmem_acl_init(struct inode *inode, struct inode *dir)
 {
        return 0;
 }
-static inline void shmem_acl_destroy_inode(struct inode *inode)
-{
-}
 #endif  /* CONFIG_TMPFS_POSIX_ACL */
 
 #endif
index e89d7ec..5f2019f 100644 (file)
@@ -2379,6 +2379,10 @@ static struct inode *shmem_alloc_inode(struct super_block *sb)
        p = (struct shmem_inode_info *)kmem_cache_alloc(shmem_inode_cachep, GFP_KERNEL);
        if (!p)
                return NULL;
+#ifdef CONFIG_TMPFS_POSIX_ACL
+       p->vfs_inode.i_acl = NULL;
+       p->vfs_inode.i_default_acl = NULL;
+#endif
        return &p->vfs_inode;
 }
 
@@ -2388,7 +2392,6 @@ static void shmem_destroy_inode(struct inode *inode)
                /* only struct inode is valid if it's an inline symlink */
                mpol_free_shared_policy(&SHMEM_I(inode)->policy);
        }
-       shmem_acl_destroy_inode(inode);
        kmem_cache_free(shmem_inode_cachep, SHMEM_I(inode));
 }
 
@@ -2397,10 +2400,6 @@ static void init_once(void *foo)
        struct shmem_inode_info *p = (struct shmem_inode_info *) foo;
 
        inode_init_once(&p->vfs_inode);
-#ifdef CONFIG_TMPFS_POSIX_ACL
-       p->i_acl = NULL;
-       p->i_default_acl = NULL;
-#endif
 }
 
 static int init_inodecache(void)
index 8e5aadd..606a8e7 100644 (file)
@@ -22,11 +22,11 @@ shmem_get_acl(struct inode *inode, int type)
        spin_lock(&inode->i_lock);
        switch(type) {
                case ACL_TYPE_ACCESS:
-                       acl = posix_acl_dup(SHMEM_I(inode)->i_acl);
+                       acl = posix_acl_dup(inode->i_acl);
                        break;
 
                case ACL_TYPE_DEFAULT:
-                       acl = posix_acl_dup(SHMEM_I(inode)->i_default_acl);
+                       acl = posix_acl_dup(inode->i_default_acl);
                        break;
        }
        spin_unlock(&inode->i_lock);
@@ -45,13 +45,13 @@ shmem_set_acl(struct inode *inode, int type, struct posix_acl *acl)
        spin_lock(&inode->i_lock);
        switch(type) {
                case ACL_TYPE_ACCESS:
-                       free = SHMEM_I(inode)->i_acl;
-                       SHMEM_I(inode)->i_acl = posix_acl_dup(acl);
+                       free = inode->i_acl;
+                       inode->i_acl = posix_acl_dup(acl);
                        break;
 
                case ACL_TYPE_DEFAULT:
-                       free = SHMEM_I(inode)->i_default_acl;
-                       SHMEM_I(inode)->i_default_acl = posix_acl_dup(acl);
+                       free = inode->i_default_acl;
+                       inode->i_default_acl = posix_acl_dup(acl);
                        break;
        }
        spin_unlock(&inode->i_lock);
@@ -155,23 +155,6 @@ shmem_acl_init(struct inode *inode, struct inode *dir)
 }
 
 /**
- * shmem_acl_destroy_inode  -  destroy acls hanging off the in-memory inode
- *
- * This is done before destroying the actual inode.
- */
-
-void
-shmem_acl_destroy_inode(struct inode *inode)
-{
-       if (SHMEM_I(inode)->i_acl)
-               posix_acl_release(SHMEM_I(inode)->i_acl);
-       SHMEM_I(inode)->i_acl = NULL;
-       if (SHMEM_I(inode)->i_default_acl)
-               posix_acl_release(SHMEM_I(inode)->i_default_acl);
-       SHMEM_I(inode)->i_default_acl = NULL;
-}
-
-/**
  * shmem_check_acl  -  check_acl() callback for generic_permission()
  */
 static int