root/fs/ufs/file.c

DEFINITIONS

1. ufs_sync_file

/*
 *  linux/fs/ufs/file.c
 *
 * Copyright (C) 1998
 * Daniel Pirkl <daniel.pirkl@email.cz>
 * Charles University, Faculty of Mathematics and Physics
 *
 *  from
 *
 *  linux/fs/ext2/file.c
 *
 * Copyright (C) 1992, 1993, 1994, 1995
 * Remy Card (card@masi.ibp.fr)
 * Laboratoire MASI - Institut Blaise Pascal
 * Universite Pierre et Marie Curie (Paris VI)
 *
 *  from
 *
 *  linux/fs/minix/file.c
 *
 *  Copyright (C) 1991, 1992  Linus Torvalds
 *
 *  ext2 fs regular file handling primitives
 */

#include <linux/fs.h>
#include <linux/buffer_head.h>  /* for sync_mapping_buffers() */

#include "ufs_fs.h"
#include "ufs.h"


static int ufs_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 = ufs_sync_inode(inode);
        if (ret == 0)
                ret = err;
        return ret;
}


/*
 * We have mostly NULL's here: the current defaults are ok for
 * the ufs filesystem.
 */
 
const struct file_operations ufs_file_operations = {
        .llseek         = generic_file_llseek,
        .read           = do_sync_read,
        .aio_read       = generic_file_aio_read,
        .write          = do_sync_write,
        .aio_write      = generic_file_aio_write,
        .mmap           = generic_file_mmap,
        .open           = generic_file_open,
        .fsync          = ufs_sync_file,
        .splice_read    = generic_file_splice_read,
};