From: Stephen Hemminger <shemminger@vyatta.com>
Date: Fri, 14 May 2010 00:53:16 +0000 (-0700)
Subject: ext2: constify xattr_handler
X-Git-Tag: v2.6.35-rc1~432^2~42
X-Git-Url: http://bbs.cooldavid.org/git/?a=commitdiff_plain;h=749c72efa4bd91dad3a8c2ac8bfaa7c45490ceef;p=net-next-2.6.git

ext2: constify xattr_handler

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c
index a99e54318c3..ca7e2a0ed98 100644
--- a/fs/ext2/acl.c
+++ b/fs/ext2/acl.c
@@ -420,7 +420,7 @@ release_and_out:
 	return error;
 }
 
-struct xattr_handler ext2_xattr_acl_access_handler = {
+const struct xattr_handler ext2_xattr_acl_access_handler = {
 	.prefix	= POSIX_ACL_XATTR_ACCESS,
 	.flags	= ACL_TYPE_ACCESS,
 	.list	= ext2_xattr_list_acl_access,
@@ -428,7 +428,7 @@ struct xattr_handler ext2_xattr_acl_access_handler = {
 	.set	= ext2_xattr_set_acl,
 };
 
-struct xattr_handler ext2_xattr_acl_default_handler = {
+const struct xattr_handler ext2_xattr_acl_default_handler = {
 	.prefix	= POSIX_ACL_XATTR_DEFAULT,
 	.flags	= ACL_TYPE_DEFAULT,
 	.list	= ext2_xattr_list_acl_default,
diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c
index 3b96045a00c..7c3915780b1 100644
--- a/fs/ext2/xattr.c
+++ b/fs/ext2/xattr.c
@@ -101,7 +101,7 @@ static void ext2_xattr_rehash(struct ext2_xattr_header *,
 
 static struct mb_cache *ext2_xattr_cache;
 
-static struct xattr_handler *ext2_xattr_handler_map[] = {
+static const struct xattr_handler *ext2_xattr_handler_map[] = {
 	[EXT2_XATTR_INDEX_USER]		     = &ext2_xattr_user_handler,
 #ifdef CONFIG_EXT2_FS_POSIX_ACL
 	[EXT2_XATTR_INDEX_POSIX_ACL_ACCESS]  = &ext2_xattr_acl_access_handler,
@@ -113,7 +113,7 @@ static struct xattr_handler *ext2_xattr_handler_map[] = {
 #endif
 };
 
-struct xattr_handler *ext2_xattr_handlers[] = {
+const struct xattr_handler *ext2_xattr_handlers[] = {
 	&ext2_xattr_user_handler,
 	&ext2_xattr_trusted_handler,
 #ifdef CONFIG_EXT2_FS_POSIX_ACL
@@ -126,10 +126,10 @@ struct xattr_handler *ext2_xattr_handlers[] = {
 	NULL
 };
 
-static inline struct xattr_handler *
+static inline const struct xattr_handler *
 ext2_xattr_handler(int name_index)
 {
-	struct xattr_handler *handler = NULL;
+	const struct xattr_handler *handler = NULL;
 
 	if (name_index > 0 && name_index < ARRAY_SIZE(ext2_xattr_handler_map))
 		handler = ext2_xattr_handler_map[name_index];
@@ -298,7 +298,7 @@ bad_block:	ext2_error(inode->i_sb, "ext2_xattr_list",
 	/* list the attribute names */
 	for (entry = FIRST_ENTRY(bh); !IS_LAST_ENTRY(entry);
 	     entry = EXT2_XATTR_NEXT(entry)) {
-		struct xattr_handler *handler =
+		const struct xattr_handler *handler =
 			ext2_xattr_handler(entry->e_name_index);
 
 		if (handler) {
diff --git a/fs/ext2/xattr.h b/fs/ext2/xattr.h
index bf8175b2ced..a1a1c218461 100644
--- a/fs/ext2/xattr.h
+++ b/fs/ext2/xattr.h
@@ -55,11 +55,11 @@ struct ext2_xattr_entry {
 
 # ifdef CONFIG_EXT2_FS_XATTR
 
-extern struct xattr_handler ext2_xattr_user_handler;
-extern struct xattr_handler ext2_xattr_trusted_handler;
-extern struct xattr_handler ext2_xattr_acl_access_handler;
-extern struct xattr_handler ext2_xattr_acl_default_handler;
-extern struct xattr_handler ext2_xattr_security_handler;
+extern const struct xattr_handler ext2_xattr_user_handler;
+extern const struct xattr_handler ext2_xattr_trusted_handler;
+extern const struct xattr_handler ext2_xattr_acl_access_handler;
+extern const struct xattr_handler ext2_xattr_acl_default_handler;
+extern const struct xattr_handler ext2_xattr_security_handler;
 
 extern ssize_t ext2_listxattr(struct dentry *, char *, size_t);
 
@@ -72,7 +72,7 @@ extern void ext2_xattr_put_super(struct super_block *);
 extern int init_ext2_xattr(void);
 extern void exit_ext2_xattr(void);
 
-extern struct xattr_handler *ext2_xattr_handlers[];
+extern const struct xattr_handler *ext2_xattr_handlers[];
 
 # else  /* CONFIG_EXT2_FS_XATTR */
 
diff --git a/fs/ext2/xattr_security.c b/fs/ext2/xattr_security.c
index b118c6383c6..3004e15d5da 100644
--- a/fs/ext2/xattr_security.c
+++ b/fs/ext2/xattr_security.c
@@ -67,7 +67,7 @@ ext2_init_security(struct inode *inode, struct inode *dir)
 	return err;
 }
 
-struct xattr_handler ext2_xattr_security_handler = {
+const struct xattr_handler ext2_xattr_security_handler = {
 	.prefix	= XATTR_SECURITY_PREFIX,
 	.list	= ext2_xattr_security_list,
 	.get	= ext2_xattr_security_get,
diff --git a/fs/ext2/xattr_trusted.c b/fs/ext2/xattr_trusted.c
index 2a26d71f477..667e46a8d62 100644
--- a/fs/ext2/xattr_trusted.c
+++ b/fs/ext2/xattr_trusted.c
@@ -50,7 +50,7 @@ ext2_xattr_trusted_set(struct dentry *dentry, const char *name,
 			      value, size, flags);
 }
 
-struct xattr_handler ext2_xattr_trusted_handler = {
+const struct xattr_handler ext2_xattr_trusted_handler = {
 	.prefix	= XATTR_TRUSTED_PREFIX,
 	.list	= ext2_xattr_trusted_list,
 	.get	= ext2_xattr_trusted_get,
diff --git a/fs/ext2/xattr_user.c b/fs/ext2/xattr_user.c
index 3f6caf3684b..099d20f4716 100644
--- a/fs/ext2/xattr_user.c
+++ b/fs/ext2/xattr_user.c
@@ -54,7 +54,7 @@ ext2_xattr_user_set(struct dentry *dentry, const char *name,
 			      name, value, size, flags);
 }
 
-struct xattr_handler ext2_xattr_user_handler = {
+const struct xattr_handler ext2_xattr_user_handler = {
 	.prefix	= XATTR_USER_PREFIX,
 	.list	= ext2_xattr_user_list,
 	.get	= ext2_xattr_user_get,