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 = do_sync_read, 21 .aio_read = generic_file_aio_read, 22 .write = do_sync_write, 23 .aio_write = generic_file_aio_write, 24 .mmap = generic_file_mmap, 25 .fsync = minix_sync_file, 26 .splice_read = generic_file_splice_read, 27 }; 28 29 const struct inode_operations minix_file_inode_operations = { 30 .truncate = minix_truncate, 31 .getattr = minix_getattr, 32 }; 33 34 int minix_sync_file(struct file * file, struct dentry *dentry, int datasync) 35 { 36 struct inode *inode = dentry->d_inode; 37 int err; 38 39 err = sync_mapping_buffers(inode->i_mapping); 40 if (!(inode->i_state & I_DIRTY)) 41 return err; 42 if (datasync && !(inode->i_state & I_DIRTY_DATASYNC)) 43 return err; 44 45 err |= minix_sync_inode(inode); 46 return err ? -EIO : 0; 47 } 48