5 files changed, 9 insertions, 86 deletions

diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index 605aeed96d68..f6d8967149ca 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -126,33 +126,6 @@ fail:
         return ERR_PTR(-EINVAL);
 }
 
-static inline struct posix_acl *
-ext4_iget_acl(struct inode *inode, struct posix_acl **i_acl)
-{
-        struct posix_acl *acl = ACCESS_ONCE(*i_acl);
-
-        if (acl) {
-                spin_lock(&inode->i_lock);
-                acl = *i_acl;
-                if (acl != EXT4_ACL_NOT_CACHED)
-                        acl = posix_acl_dup(acl);
-                spin_unlock(&inode->i_lock);
-        }
-
-        return acl;
-}
-
-static inline void
-ext4_iset_acl(struct inode *inode, struct posix_acl **i_acl,
-                struct posix_acl *acl)
-{
-        spin_lock(&inode->i_lock);
-        if (*i_acl != EXT4_ACL_NOT_CACHED)
-                posix_acl_release(*i_acl);
-        *i_acl = posix_acl_dup(acl);
-        spin_unlock(&inode->i_lock);
-}
-
 /*
  * Inode operation get_posix_acl().
  *
@@ -161,7 +134,6 @@ ext4_iset_acl(struct inode *inode, struct posix_acl **i_acl,
 static struct posix_acl *
 ext4_get_acl(struct inode *inode, int type)
 {
-        struct ext4_inode_info *ei = EXT4_I(inode);
         int name_index;
         char *value = NULL;
         struct posix_acl *acl;
@@ -170,23 +142,19 @@ ext4_get_acl(struct inode *inode, int type)
         if (!test_opt(inode->i_sb, POSIX_ACL))
                 return NULL;
 
+        acl = get_cached_acl(inode, type);
+        if (acl != ACL_NOT_CACHED)
+                return acl;
+
         switch (type) {
         case ACL_TYPE_ACCESS:
-                acl = ext4_iget_acl(inode, &ei->i_acl);
-                if (acl != EXT4_ACL_NOT_CACHED)
-                        return acl;
                 name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
                 break;
-
         case ACL_TYPE_DEFAULT:
-                acl = ext4_iget_acl(inode, &ei->i_default_acl);
-                if (acl != EXT4_ACL_NOT_CACHED)
-                        return acl;
                 name_index = EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT;
                 break;
-
         default:
-                return ERR_PTR(-EINVAL);
+                BUG();
         }
         retval = ext4_xattr_get(inode, name_index, "", NULL, 0);
         if (retval > 0) {
@@ -203,17 +171,9 @@ ext4_get_acl(struct inode *inode, int type)
                 acl = ERR_PTR(retval);
         kfree(value);
 
-        if (!IS_ERR(acl)) {
-                switch (type) {
-                case ACL_TYPE_ACCESS:
-                        ext4_iset_acl(inode, &ei->i_acl, acl);
-                        break;
+        if (!IS_ERR(acl))
+                set_cached_acl(inode, type, acl);
 
-                case ACL_TYPE_DEFAULT:
-                        ext4_iset_acl(inode, &ei->i_default_acl, acl);
-                        break;
-                }
-        }
         return acl;
 }
 
@@ -226,7 +186,6 @@ static int
 ext4_set_acl(handle_t *handle, struct inode *inode, int type,
              struct posix_acl *acl)
 {
-        struct ext4_inode_info *ei = EXT4_I(inode);
         int name_index;
         void *value = NULL;
         size_t size = 0;
@@ -271,17 +230,9 @@ ext4_set_acl(handle_t *handle, struct inode *inode, int type,
                                       value, size, 0);
 
         kfree(value);
-        if (!error) {
-                switch (type) {
-                case ACL_TYPE_ACCESS:
-                        ext4_iset_acl(inode, &ei->i_acl, acl);
-                        break;
+        if (!error)
+                set_cached_acl(inode, type, acl);
 
-                case ACL_TYPE_DEFAULT:
-                        ext4_iset_acl(inode, &ei->i_default_acl, acl);
-                        break;
-                }
-        }
         return error;
 }
 
diff --git a/fs/ext4/acl.h b/fs/ext4/acl.h
index cb45257a246e..949789d2bba6 100644
--- a/fs/ext4/acl.h
+++ b/fs/ext4/acl.h
@@ -53,10 +53,6 @@ static inline int ext4_acl_count(size_t size)
 
 #ifdef CONFIG_EXT4_FS_POSIX_ACL
 
-/* Value for inode->u.ext4_i.i_acl and inode->u.ext4_i.i_default_acl
-   if the ACL has not been cached */
-#define EXT4_ACL_NOT_CACHED ((void *)-1)
-
 /* acl.c */
 extern int ext4_permission(struct inode *, int);
 extern int ext4_acl_chmod(struct inode *);
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 17b9998680e3..0ddf7e55abe1 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -595,10 +595,6 @@ struct ext4_inode_info {
          */
         struct rw_semaphore xattr_sem;
 #endif
-#ifdef CONFIG_EXT4_FS_POSIX_ACL
-        struct posix_acl        *i_acl;
-        struct posix_acl        *i_default_acl;
-#endif
 
         struct list_head i_orphan;      /* unlinked but open inodes */
 
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 7c17ae275af4..60a26f3a6f8b 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4453,10 +4453,6 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
                 return inode;
 
         ei = EXT4_I(inode);
-#ifdef CONFIG_EXT4_FS_POSIX_ACL
-        ei->i_acl = EXT4_ACL_NOT_CACHED;
-        ei->i_default_acl = EXT4_ACL_NOT_CACHED;
-#endif
 
         ret = __ext4_get_inode_loc(inode, &iloc, 0);
         if (ret < 0)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 8bb9e2d3e4b8..8f4f079e6b9a 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -666,10 +666,6 @@ static struct inode *ext4_alloc_inode(struct super_block *sb)
         if (!ei)
                 return NULL;
 
-#ifdef CONFIG_EXT4_FS_POSIX_ACL
-        ei->i_acl = EXT4_ACL_NOT_CACHED;
-        ei->i_default_acl = EXT4_ACL_NOT_CACHED;
-#endif
         ei->vfs_inode.i_version = 1;
         ei->vfs_inode.i_data.writeback_index = 0;
         memset(&ei->i_cached_extent, 0, sizeof(struct ext4_ext_cache));
@@ -735,18 +731,6 @@ static void destroy_inodecache(void)
 
 static void ext4_clear_inode(struct inode *inode)
 {
-#ifdef CONFIG_EXT4_FS_POSIX_ACL
-        if (EXT4_I(inode)->i_acl &&
-                        EXT4_I(inode)->i_acl != EXT4_ACL_NOT_CACHED) {
-                posix_acl_release(EXT4_I(inode)->i_acl);
-                EXT4_I(inode)->i_acl = EXT4_ACL_NOT_CACHED;
-        }
-        if (EXT4_I(inode)->i_default_acl &&
-                        EXT4_I(inode)->i_default_acl != EXT4_ACL_NOT_CACHED) {
-                posix_acl_release(EXT4_I(inode)->i_default_acl);
-                EXT4_I(inode)->i_default_acl = EXT4_ACL_NOT_CACHED;
-        }
-#endif
         ext4_discard_preallocations(inode);
         if (EXT4_JOURNAL(inode))
                 jbd2_journal_release_jbd_inode(EXT4_SB(inode->i_sb)->s_journal,