Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * linux/fs/sysv/file.c | |
3 | * | |
4 | * minix/file.c | |
5 | * Copyright (C) 1991, 1992 Linus Torvalds | |
6 | * | |
7 | * coh/file.c | |
8 | * Copyright (C) 1993 Pascal Haible, Bruno Haible | |
9 | * | |
10 | * sysv/file.c | |
11 | * Copyright (C) 1993 Bruno Haible | |
12 | * | |
13 | * SystemV/Coherent regular file handling primitives | |
14 | */ | |
15 | ||
16 | #include "sysv.h" | |
17 | ||
18 | /* | |
19 | * We have mostly NULLs here: the current defaults are OK for | |
20 | * the coh filesystem. | |
21 | */ | |
4b6f5d20 | 22 | const struct file_operations sysv_file_operations = { |
1da177e4 LT |
23 | .llseek = generic_file_llseek, |
24 | .read = generic_file_read, | |
25 | .write = generic_file_write, | |
26 | .mmap = generic_file_mmap, | |
27 | .fsync = sysv_sync_file, | |
28 | .sendfile = generic_file_sendfile, | |
29 | }; | |
30 | ||
31 | struct inode_operations sysv_file_inode_operations = { | |
32 | .truncate = sysv_truncate, | |
33 | .getattr = sysv_getattr, | |
34 | }; | |
35 | ||
36 | int sysv_sync_file(struct file * file, struct dentry *dentry, int datasync) | |
37 | { | |
38 | struct inode *inode = dentry->d_inode; | |
39 | int err; | |
40 | ||
41 | err = sync_mapping_buffers(inode->i_mapping); | |
42 | if (!(inode->i_state & I_DIRTY)) | |
43 | return err; | |
44 | if (datasync && !(inode->i_state & I_DIRTY_DATASYNC)) | |
45 | return err; | |
46 | ||
47 | err |= sysv_sync_inode(inode); | |
48 | return err ? -EIO : 0; | |
49 | } |