diff options
Diffstat (limited to 'kernel/fs/jffs2/xattr_user.c')
-rw-r--r-- | kernel/fs/jffs2/xattr_user.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/kernel/fs/jffs2/xattr_user.c b/kernel/fs/jffs2/xattr_user.c new file mode 100644 index 000000000..a71391eba --- /dev/null +++ b/kernel/fs/jffs2/xattr_user.c @@ -0,0 +1,55 @@ +/* + * JFFS2 -- Journalling Flash File System, Version 2. + * + * Copyright © 2006 NEC Corporation + * + * Created by KaiGai Kohei <kaigai@ak.jp.nec.com> + * + * For licensing information, see the file 'LICENCE' in this directory. + * + */ + +#include <linux/kernel.h> +#include <linux/fs.h> +#include <linux/jffs2.h> +#include <linux/xattr.h> +#include <linux/mtd/mtd.h> +#include "nodelist.h" + +static int jffs2_user_getxattr(struct dentry *dentry, const char *name, + void *buffer, size_t size, int type) +{ + if (!strcmp(name, "")) + return -EINVAL; + return do_jffs2_getxattr(d_inode(dentry), JFFS2_XPREFIX_USER, + name, buffer, size); +} + +static int jffs2_user_setxattr(struct dentry *dentry, const char *name, + const void *buffer, size_t size, int flags, int type) +{ + if (!strcmp(name, "")) + return -EINVAL; + return do_jffs2_setxattr(d_inode(dentry), JFFS2_XPREFIX_USER, + name, buffer, size, flags); +} + +static size_t jffs2_user_listxattr(struct dentry *dentry, char *list, + size_t list_size, const char *name, size_t name_len, int type) +{ + size_t retlen = XATTR_USER_PREFIX_LEN + name_len + 1; + + if (list && retlen <= list_size) { + strcpy(list, XATTR_USER_PREFIX); + strcpy(list + XATTR_USER_PREFIX_LEN, name); + } + + return retlen; +} + +const struct xattr_handler jffs2_user_xattr_handler = { + .prefix = XATTR_USER_PREFIX, + .list = jffs2_user_listxattr, + .set = jffs2_user_setxattr, + .get = jffs2_user_getxattr +}; |