mirror of https://gitee.com/openkylin/linux.git
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
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/*-------------------------------------------------------------------------*
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* File: fs/jffs2/xattr_user.c
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* XATTR support on JFFS2 FileSystem
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*
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* Implemented by KaiGai Kohei <kaigai@ak.jp.nec.com>
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* Copyright (C) 2006 NEC Corporation
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*
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* For licensing information, see the file 'LICENCE' in the jffs2 directory.
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*-------------------------------------------------------------------------*/
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#include <linux/kernel.h>
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#include <linux/fs.h>
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#include <linux/jffs2.h>
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#include <linux/xattr.h>
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#include <linux/mtd/mtd.h>
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#include "nodelist.h"
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static int jffs2_user_getxattr(struct inode *inode, const char *name,
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void *buffer, size_t size)
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{
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if (!strcmp(name, ""))
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return -EINVAL;
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return do_jffs2_getxattr(inode, JFFS2_XPREFIX_USER, name, buffer, size);
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}
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static int jffs2_user_setxattr(struct inode *inode, const char *name, const void *buffer,
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size_t size, int flags)
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{
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if (!strcmp(name, ""))
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return -EINVAL;
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return do_jffs2_setxattr(inode, JFFS2_XPREFIX_USER, name, buffer, size, flags);
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}
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static size_t jffs2_user_listxattr(struct inode *inode, char *list, size_t list_size,
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const char *name, size_t name_len)
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{
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size_t retlen = XATTR_USER_PREFIX_LEN + name_len + 1;
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if (list && retlen <= list_size) {
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strcpy(list, XATTR_USER_PREFIX);
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strcpy(list + XATTR_USER_PREFIX_LEN, name);
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}
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return retlen;
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}
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struct xattr_handler jffs2_user_xattr_handler = {
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.prefix = XATTR_USER_PREFIX,
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.list = jffs2_user_listxattr,
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.set = jffs2_user_setxattr,
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.get = jffs2_user_getxattr
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};
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