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fs/jffs2/xattr_user.c 1.38 KB
652ecc20d   KaiGai Kohei   [JFFS2][XATTR] Un...
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  /*
   * JFFS2 -- Journalling Flash File System, Version 2.
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   *
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   * Copyright © 2006  NEC Corporation
aa98d7cf5   KaiGai Kohei   [JFFS2][XATTR] XA...
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   *
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   * Created by KaiGai Kohei <kaigai@ak.jp.nec.com>
   *
   * For licensing information, see the file 'LICENCE' in this directory.
   *
   */
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aa98d7cf5   KaiGai Kohei   [JFFS2][XATTR] XA...
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  #include <linux/kernel.h>
  #include <linux/fs.h>
  #include <linux/jffs2.h>
  #include <linux/xattr.h>
  #include <linux/mtd/mtd.h>
  #include "nodelist.h"
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  static int jffs2_user_getxattr(struct dentry *dentry, const char *name,
  			       void *buffer, size_t size, int type)
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  {
  	if (!strcmp(name, ""))
  		return -EINVAL;
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  	return do_jffs2_getxattr(dentry->d_inode, JFFS2_XPREFIX_USER,
  				 name, buffer, size);
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  }
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  static int jffs2_user_setxattr(struct dentry *dentry, const char *name,
  		const void *buffer, size_t size, int flags, int type)
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  {
  	if (!strcmp(name, ""))
  		return -EINVAL;
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  	return do_jffs2_setxattr(dentry->d_inode, JFFS2_XPREFIX_USER,
  				 name, buffer, size, flags);
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  }
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  static size_t jffs2_user_listxattr(struct dentry *dentry, char *list,
  		size_t list_size, const char *name, size_t name_len, int type)
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  {
  	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;
  }
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  const struct xattr_handler jffs2_user_xattr_handler = {
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  	.prefix = XATTR_USER_PREFIX,
  	.list = jffs2_user_listxattr,
  	.set = jffs2_user_setxattr,
  	.get = jffs2_user_getxattr
  };