Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (23 commits)
  switch xfs to generic acl caching helpers
  helpers for acl caching + switch to those
  switch shmem to inode->i_acl
  switch reiserfs to inode->i_acl
  switch reiserfs to usual conventions for caching ACLs
  reiserfs: minimal fix for ACL caching
  switch nilfs2 to inode->i_acl
  switch btrfs to inode->i_acl
  switch jffs2 to inode->i_acl
  switch jfs to inode->i_acl
  switch ext4 to inode->i_acl
  switch ext3 to inode->i_acl
  switch ext2 to inode->i_acl
  add caching of ACLs in struct inode
  fs: Add new pre-allocation ioctls to vfs for compatibility with legacy xfs ioctls
  cleanup __writeback_single_inode
  ... and the same for vfsmount id/mount group id
  Make allocation of anon devices cheaper
  update Documentation/filesystems/Locking
  devpts: remove module-related code
  ...

4 files changed, 11 insertions, 76 deletions

diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 6fd0f47e45d..a14d6cd9eed 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1131,8 +1131,6 @@ static void init_inode(struct inode *inode, struct treepath *path)
 	REISERFS_I(inode)->i_trans_id = 0;
 	REISERFS_I(inode)->i_jl = NULL;
 	mutex_init(&(REISERFS_I(inode)->i_mmap));
-	reiserfs_init_acl_access(inode);
-	reiserfs_init_acl_default(inode);
 	reiserfs_init_xattr_rwsem(inode);
 
 	if (stat_data_v1(ih)) {
@@ -1834,8 +1832,6 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
 	    REISERFS_I(dir)->i_attrs & REISERFS_INHERIT_MASK;
 	sd_attrs_to_i_attrs(REISERFS_I(inode)->i_attrs, inode);
 	mutex_init(&(REISERFS_I(inode)->i_mmap));
-	reiserfs_init_acl_access(inode);
-	reiserfs_init_acl_default(inode);
 	reiserfs_init_xattr_rwsem(inode);
 
 	/* key to search for correct place for new stat data */
diff --git a/fs/reiserfs/resize.c b/fs/reiserfs/resize.c
index 238e9d9b31e..18b315d3d10 100644
--- a/fs/reiserfs/resize.c
+++ b/fs/reiserfs/resize.c
@@ -82,7 +82,6 @@ int reiserfs_resize(struct super_block *s, unsigned long block_count_new)
 		if (reiserfs_allocate_list_bitmaps(s, jbitmap, bmap_nr_new) < 0) {
 			printk
 			    ("reiserfs_resize: unable to allocate memory for journal bitmaps\n");
-			unlock_super(s);
 			return -ENOMEM;
 		}
 		/* the new journal bitmaps are zero filled, now we copy in the bitmap
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 2969773cfc2..d3aeb061612 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -529,10 +529,6 @@ static void init_once(void *foo)
 
 	INIT_LIST_HEAD(&ei->i_prealloc_list);
 	inode_init_once(&ei->vfs_inode);
-#ifdef CONFIG_REISERFS_FS_POSIX_ACL
-	ei->i_acl_access = NULL;
-	ei->i_acl_default = NULL;
-#endif
 }
 
 static int init_inodecache(void)
@@ -580,25 +576,6 @@ static void reiserfs_dirty_inode(struct inode *inode)
 	reiserfs_write_unlock(inode->i_sb);
 }
 
-#ifdef CONFIG_REISERFS_FS_POSIX_ACL
-static void reiserfs_clear_inode(struct inode *inode)
-{
-	struct posix_acl *acl;
-
-	acl = REISERFS_I(inode)->i_acl_access;
-	if (acl && !IS_ERR(acl))
-		posix_acl_release(acl);
-	REISERFS_I(inode)->i_acl_access = NULL;
-
-	acl = REISERFS_I(inode)->i_acl_default;
-	if (acl && !IS_ERR(acl))
-		posix_acl_release(acl);
-	REISERFS_I(inode)->i_acl_default = NULL;
-}
-#else
-#define reiserfs_clear_inode NULL
-#endif
-
 #ifdef CONFIG_QUOTA
 static ssize_t reiserfs_quota_write(struct super_block *, int, const char *,
 				    size_t, loff_t);
@@ -612,7 +589,6 @@ static const struct super_operations reiserfs_sops = {
 	.write_inode = reiserfs_write_inode,
 	.dirty_inode = reiserfs_dirty_inode,
 	.delete_inode = reiserfs_delete_inode,
-	.clear_inode = reiserfs_clear_inode,
 	.put_super = reiserfs_put_super,
 	.write_super = reiserfs_write_super,
 	.sync_fs = reiserfs_sync_fs,
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index c303c426fe2..35d6e672a27 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -188,29 +188,6 @@ static void *posix_acl_to_disk(const struct posix_acl *acl, size_t * size)
 	return ERR_PTR(-EINVAL);
 }
 
-static inline void iset_acl(struct inode *inode, struct posix_acl **i_acl,
-			    struct posix_acl *acl)
-{
-	spin_lock(&inode->i_lock);
-	if (*i_acl != ERR_PTR(-ENODATA))
-		posix_acl_release(*i_acl);
-	*i_acl = posix_acl_dup(acl);
-	spin_unlock(&inode->i_lock);
-}
-
-static inline struct posix_acl *iget_acl(struct inode *inode,
-					 struct posix_acl **i_acl)
-{
-	struct posix_acl *acl = ERR_PTR(-ENODATA);
-
-	spin_lock(&inode->i_lock);
-	if (*i_acl != ERR_PTR(-ENODATA))
-		acl = posix_acl_dup(*i_acl);
-	spin_unlock(&inode->i_lock);
-
-	return acl;
-}
-
 /*
  * Inode operation get_posix_acl().
  *
@@ -220,34 +197,29 @@ static inline struct posix_acl *iget_acl(struct inode *inode,
 struct posix_acl *reiserfs_get_acl(struct inode *inode, int type)
 {
 	char *name, *value;
-	struct posix_acl *acl, **p_acl;
+	struct posix_acl *acl;
 	int size;
 	int retval;
-	struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode);
+
+	acl = get_cached_acl(inode, type);
+	if (acl != ACL_NOT_CACHED)
+		return acl;
 
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		name = POSIX_ACL_XATTR_ACCESS;
-		p_acl = &reiserfs_i->i_acl_access;
 		break;
 	case ACL_TYPE_DEFAULT:
 		name = POSIX_ACL_XATTR_DEFAULT;
-		p_acl = &reiserfs_i->i_acl_default;
 		break;
 	default:
-		return ERR_PTR(-EINVAL);
+		BUG();
 	}
 
-	acl = iget_acl(inode, p_acl);
-	if (acl && !IS_ERR(acl))
-		return acl;
-	else if (PTR_ERR(acl) == -ENODATA)
-		return NULL;
-
 	size = reiserfs_xattr_get(inode, name, NULL, 0);
 	if (size < 0) {
 		if (size == -ENODATA || size == -ENOSYS) {
-			*p_acl = ERR_PTR(-ENODATA);
+			set_cached_acl(inode, type, NULL);
 			return NULL;
 		}
 		return ERR_PTR(size);
@@ -262,14 +234,13 @@ struct posix_acl *reiserfs_get_acl(struct inode *inode, int type)
 		/* This shouldn't actually happen as it should have
 		   been caught above.. but just in case */
 		acl = NULL;
-		*p_acl = ERR_PTR(-ENODATA);
 	} else if (retval < 0) {
 		acl = ERR_PTR(retval);
 	} else {
 		acl = posix_acl_from_disk(value, retval);
-		if (!IS_ERR(acl))
-			iset_acl(inode, p_acl, acl);
 	}
+	if (!IS_ERR(acl))
+		set_cached_acl(inode, type, acl);
 
 	kfree(value);
 	return acl;
@@ -287,10 +258,8 @@ reiserfs_set_acl(struct reiserfs_transaction_handle *th, struct inode *inode,
 {
 	char *name;
 	void *value = NULL;
-	struct posix_acl **p_acl;
 	size_t size = 0;
 	int error;
-	struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode);
 
 	if (S_ISLNK(inode->i_mode))
 		return -EOPNOTSUPP;
@@ -298,7 +267,6 @@ reiserfs_set_acl(struct reiserfs_transaction_handle *th, struct inode *inode,
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		name = POSIX_ACL_XATTR_ACCESS;
-		p_acl = &reiserfs_i->i_acl_access;
 		if (acl) {
 			mode_t mode = inode->i_mode;
 			error = posix_acl_equiv_mode(acl, &mode);
@@ -313,7 +281,6 @@ reiserfs_set_acl(struct reiserfs_transaction_handle *th, struct inode *inode,
 		break;
 	case ACL_TYPE_DEFAULT:
 		name = POSIX_ACL_XATTR_DEFAULT;
-		p_acl = &reiserfs_i->i_acl_default;
 		if (!S_ISDIR(inode->i_mode))
 			return acl ? -EACCES : 0;
 		break;
@@ -346,7 +313,7 @@ reiserfs_set_acl(struct reiserfs_transaction_handle *th, struct inode *inode,
 	kfree(value);
 
 	if (!error)
-		iset_acl(inode, p_acl, acl);
+		set_cached_acl(inode, type, acl);
 
 	return error;
 }
@@ -379,11 +346,8 @@ reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
 	}
 
 	acl = reiserfs_get_acl(dir, ACL_TYPE_DEFAULT);
-	if (IS_ERR(acl)) {
-		if (PTR_ERR(acl) == -ENODATA)
-			goto apply_umask;
+	if (IS_ERR(acl))
 		return PTR_ERR(acl);
-	}
 
 	if (acl) {
 		struct posix_acl *acl_copy;