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yinjiaming
5e1eaa7d26
【背景】 3.1 代码检视过程中有一些问题需要修改 【修改方案】 更改了一些文件的权限 【影响】 对现有的产品编译不会有影响。 re #I4XC8T Signed-off-by: yinjiaming <yinjiaming@huawei.com> Change-Id: Iba2ff81512a5eb335801798b2f471045815cc6ec
43 lines
981 B
C
43 lines
981 B
C
/*
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* JFFS2 -- Journalling Flash File System, Version 2.
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*
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* Copyright © 2001-2007 Red Hat, Inc.
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* Copyright © 2004-2010 David Woodhouse <dwmw2@infradead.org>
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*
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* Created by David Woodhouse <dwmw2@infradead.org>
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*
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* For licensing information, see the file 'LICENCE' in this directory.
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*
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*/
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#include "los_vm_common.h"
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#include "nodelist.h"
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#include "vfs_jffs2.h"
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static unsigned char gc_buffer[PAGE_SIZE]; //avoids malloc when user may be under memory pressure
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unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c,
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struct jffs2_inode_info *f,
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unsigned long offset,
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unsigned long *priv)
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{
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/* FIXME: This works only with one file system mounted at a time */
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int ret;
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ret = jffs2_read_inode_range(c, f, gc_buffer,
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offset & ~(PAGE_SIZE-1), PAGE_SIZE);
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if (ret)
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return ERR_PTR(ret);
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return gc_buffer;
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}
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void jffs2_gc_release_page(struct jffs2_sb_info *c,
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unsigned char *ptr,
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unsigned long *priv)
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{
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/* Do nothing */
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}
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