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fs: xattr_handler table should be const

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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 <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Stephen Hemminger 2010-05-13 17:53:14 -07:00 • committed by Al Viro
commit bb4354538e
6 changed files with 15 additions and 15 deletions
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14
fs/xattr.c
View file

@ -590,10 +590,10 @@ strcmp_prefix(const char *a, const char *a_prefix)
/*
* 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 @@ xattr_resolve_name(struct xattr_handler **handlers, const char **name)
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 @@ generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t s
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 @@ generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
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 @@ generic_setxattr(struct dentry *dentry, const char *name, const void *value, siz
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)