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/*
* linux/fs/sysv/file.c
*
* minix/file.c
* Copyright (C) 1991, 1992 Linus Torvalds
*
* coh/file.c
* Copyright (C) 1993 Pascal Haible, Bruno Haible
*
* sysv/file.c
* Copyright (C) 1993 Bruno Haible
*
* SystemV/Coherent regular file handling primitives
*/
#include "sysv.h"
/*
* We have mostly NULLs here: the current defaults are OK for
* the coh filesystem.
*/
const struct file_operations sysv_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,
.fsync = sysv_sync_file,
.sendfile = generic_file_sendfile,
};
const struct inode_operations sysv_file_inode_operations = {
.truncate = sysv_truncate,
.getattr = sysv_getattr,
};
int sysv_sync_file(struct file * file, struct dentry *dentry, int datasync)
{
struct inode *inode = dentry->d_inode;
int err;
err = sync_mapping_buffers(inode->i_mapping);
if (!(inode->i_state & I_DIRTY))
return err;
if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
return err;
err |= sysv_sync_inode(inode);
return err ? -EIO : 0;
}
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