Merge branches 'fixes' and 'fwnet' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6-block.git] / fs / sysv / file.c
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1da177e4
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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 22const struct file_operations sysv_file_operations = {
1da177e4 23 .llseek = generic_file_llseek,
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24 .read = do_sync_read,
25 .aio_read = generic_file_aio_read,
26 .write = do_sync_write,
27 .aio_write = generic_file_aio_write,
1da177e4 28 .mmap = generic_file_mmap,
1b061d92 29 .fsync = generic_file_fsync,
5ffc4ef4 30 .splice_read = generic_file_splice_read,
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31};
32
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33static int sysv_setattr(struct dentry *dentry, struct iattr *attr)
34{
35 struct inode *inode = dentry->d_inode;
36 int error;
37
38 error = inode_change_ok(inode, attr);
39 if (error)
40 return error;
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41
42 if ((attr->ia_valid & ATTR_SIZE) &&
43 attr->ia_size != i_size_read(inode)) {
44 error = vmtruncate(inode, attr->ia_size);
45 if (error)
46 return error;
47 }
48
49 setattr_copy(inode, attr);
50 mark_inode_dirty(inode);
51 return 0;
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52}
53
c5ef1c42 54const struct inode_operations sysv_file_inode_operations = {
1da177e4 55 .truncate = sysv_truncate,
d39aae9e 56 .setattr = sysv_setattr,
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57 .getattr = sysv_getattr,
58};