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Tip revision: 6246b6128bbe34d0752f119cf7c5111c85fe481d authored by Linus Torvalds on 03 April 2006, 03:22:10 UTC
Linux v2.6.17-rc1
Linux v2.6.17-rc1
Tip revision: 6246b61
fsync.c
/*
* linux/fs/ext2/fsync.c
*
* Copyright (C) 1993 Stephen Tweedie (sct@dcs.ed.ac.uk)
* from
* Copyright (C) 1992 Remy Card (card@masi.ibp.fr)
* Laboratoire MASI - Institut Blaise Pascal
* Universite Pierre et Marie Curie (Paris VI)
* from
* linux/fs/minix/truncate.c Copyright (C) 1991, 1992 Linus Torvalds
*
* ext2fs fsync primitive
*
* Big-endian to little-endian byte-swapping/bitmaps by
* David S. Miller (davem@caip.rutgers.edu), 1995
*
* Removed unnecessary code duplication for little endian machines
* and excessive __inline__s.
* Andi Kleen, 1997
*
* Major simplications and cleanup - we only need to do the metadata, because
* we can depend on generic_block_fdatasync() to sync the data blocks.
*/
#include "ext2.h"
#include <linux/smp_lock.h>
#include <linux/buffer_head.h> /* for fsync_inode_buffers() */
/*
* File may be NULL when we are called. Perhaps we shouldn't
* even pass file to fsync ?
*/
int ext2_sync_file(struct file *file, struct dentry *dentry, int datasync)
{
struct inode *inode = dentry->d_inode;
int err;
int ret;
ret = sync_mapping_buffers(inode->i_mapping);
if (!(inode->i_state & I_DIRTY))
return ret;
if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
return ret;
err = ext2_sync_inode(inode);
if (ret == 0)
ret = err;
return ret;
}