fs: xattr_handler table should be const
The entries in xattr handler table should be immutable (ie const)
like other operation tables.
Later patches convert common filesystems. Uncoverted filesystems
will still work, but will generate a compiler warning.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/xattr.c b/fs/xattr.c
index 46f87e8..01bb813 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -590,10 +590,10 @@
/*
* Find the xattr_handler with the matching prefix.
*/
-static struct xattr_handler *
-xattr_resolve_name(struct xattr_handler **handlers, const char **name)
+static const struct xattr_handler *
+xattr_resolve_name(const struct xattr_handler **handlers, const char **name)
{
- struct xattr_handler *handler;
+ const struct xattr_handler *handler;
if (!*name)
return NULL;
@@ -614,7 +614,7 @@
ssize_t
generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size)
{
- struct xattr_handler *handler;
+ const struct xattr_handler *handler;
handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name);
if (!handler)
@@ -629,7 +629,7 @@
ssize_t
generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
{
- struct xattr_handler *handler, **handlers = dentry->d_sb->s_xattr;
+ const struct xattr_handler *handler, **handlers = dentry->d_sb->s_xattr;
unsigned int size = 0;
if (!buffer) {
@@ -659,7 +659,7 @@
int
generic_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags)
{
- struct xattr_handler *handler;
+ const struct xattr_handler *handler;
if (size == 0)
value = ""; /* empty EA, do not remove */
@@ -676,7 +676,7 @@
int
generic_removexattr(struct dentry *dentry, const char *name)
{
- struct xattr_handler *handler;
+ const struct xattr_handler *handler;
handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name);
if (!handler)