fs/reiserfs/xattr_user.c

   1 #include "reiserfs.h"
   2 #include <linux/errno.h>
   3 #include <linux/fs.h>
   4 #include <linux/pagemap.h>
   5 #include <linux/xattr.h>
   6 #include "xattr.h"
   7 #include <linux/uaccess.h>
   8
   9 static int
  10 user_get(const struct xattr_handler *handler, struct dentry *dentry,
  11          const char *name, void *buffer, size_t size)
  12 {
  13
  14         if (strlen(name) < sizeof(XATTR_USER_PREFIX))
  15                 return -EINVAL;
  16         if (!reiserfs_xattrs_user(dentry->d_sb))
  17                 return -EOPNOTSUPP;
  18         return reiserfs_xattr_get(d_inode(dentry), name, buffer, size);
  19 }
  20
  21 static int
  22 user_set(const struct xattr_handler *handler, struct dentry *dentry,
  23          const char *name, const void *buffer, size_t size, int flags)
  24 {
  25         if (strlen(name) < sizeof(XATTR_USER_PREFIX))
  26                 return -EINVAL;
  27
  28         if (!reiserfs_xattrs_user(dentry->d_sb))
  29                 return -EOPNOTSUPP;
  30         return reiserfs_xattr_set(d_inode(dentry), name, buffer, size, flags);
  31 }
  32
  33 static bool user_list(struct dentry *dentry)
  34 {
  35         return reiserfs_xattrs_user(dentry->d_sb);
  36 }
  37
  38 const struct xattr_handler reiserfs_xattr_user_handler = {
  39         .prefix = XATTR_USER_PREFIX,
  40         .get = user_get,
  41         .set = user_set,
  42         .list = user_list,
  43 };