1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
//
// The following kernel commit changed the kernel_read() function signature:
//
// commit bdd1d2d3d251c65b74ac4493e08db18971c09240
// Author: Christoph Hellwig <hch@lst.de>
// Date: Fri Sep 1 17:39:13 2017 +0200
//
// fs: fix kernel_read prototype
//
// Use proper ssize_t and size_t types for the return value and count
// argument, move the offset last and make it an in/out argument like
// all other read/write helpers, and make the buf argument a void pointer
// to get rid of lots of casts in the callers.
//
// Signed-off-by: Christoph Hellwig <hch@lst.de>
// Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
//
// This changed the function signature from:
//
// int kernel_read(struct file *file, loff_t offset, char *addr,
// unsigned long count);
//
// to:
//
// ssize_t kernel_read(struct file *file, void *buf, size_t count, loff_t *pos);
//
#include <linux/fs.h>
ssize_t foo(struct file *file, void *buf, size_t count, loff_t *pos);
ssize_t foo(struct file *file, void *buf, size_t count, loff_t *pos)
{
return kernel_read(file, buf, count, pos);
}
|
