1 /* 2 * linux/fs/minix/file.c 3 * 4 * Copyright (C) 1991, 1992 Linus Torvalds 5 * 6 * minix regular file handling primitives 7 */ 8 9 #include <linux/buffer_head.h> /* for fsync_inode_buffers() */ 10 #include "minix.h" 11 12 /* 13 * We have mostly NULLs here: the current defaults are OK for 14 * the minix filesystem. 15 */ 16 int minix_sync_file(struct file *, struct dentry *, int); 17 18 const struct file_operations minix_file_operations = { 19 .llseek = generic_file_llseek, 20 .read = generic_file_read, 21 .write = generic_file_write, 22 .mmap = generic_file_mmap, 23 .fsync = minix_sync_file, 24 .sendfile = generic_file_sendfile, 25 }; 26 27 struct inode_operations minix_file_inode_operations = { 28 .truncate = minix_truncate, 29 .getattr = minix_getattr, 30 }; 31 32 int minix_sync_file(struct file * file, struct dentry *dentry, int datasync) 33 { 34 struct inode *inode = dentry->d_inode; 35 int err; 36 37 err = sync_mapping_buffers(inode->i_mapping); 38 if (!(inode->i_state & I_DIRTY)) 39 return err; 40 if (datasync && !(inode->i_state & I_DIRTY_DATASYNC)) 41 return err; 42 43 err |= minix_sync_inode(inode); 44 return err ? -EIO : 0; 45 } 46