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48ef8ba0 BB |
1 | dnl # |
2 | dnl # 4.14 API change | |
3 | dnl # kernel_write() which was introduced in 3.9 was updated to take | |
4 | dnl # the offset as a pointer which is needed by vn_rdwr(). | |
5 | dnl # | |
608f8749 BB |
6 | AC_DEFUN([ZFS_AC_KERNEL_SRC_WRITE], [ |
7 | ZFS_LINUX_TEST_SRC([kernel_write], [ | |
48ef8ba0 BB |
8 | #include <linux/fs.h> |
9 | ],[ | |
10 | struct file *file = NULL; | |
11 | const void *buf = NULL; | |
12 | size_t count = 0; | |
13 | loff_t *pos = NULL; | |
14 | ssize_t ret; | |
15 | ||
16 | ret = kernel_write(file, buf, count, pos); | |
608f8749 BB |
17 | ]) |
18 | ]) | |
19 | ||
20 | AC_DEFUN([ZFS_AC_KERNEL_WRITE], [ | |
21 | AC_MSG_CHECKING([whether kernel_write() takes loff_t pointer]) | |
22 | ZFS_LINUX_TEST_RESULT([kernel_write], [ | |
48ef8ba0 BB |
23 | AC_MSG_RESULT(yes) |
24 | AC_DEFINE(HAVE_KERNEL_WRITE_PPOS, 1, | |
25 | [kernel_write() take loff_t pointer]) | |
26 | ],[ | |
27 | AC_MSG_RESULT(no) | |
28 | ]) | |
48ef8ba0 BB |
29 | ]) |
30 | ||
31 | dnl # | |
32 | dnl # 4.14 API change | |
33 | dnl # kernel_read() which has existed for forever was updated to take | |
34 | dnl # the offset as a pointer which is needed by vn_rdwr(). | |
35 | dnl # | |
608f8749 BB |
36 | AC_DEFUN([ZFS_AC_KERNEL_SRC_READ], [ |
37 | ZFS_LINUX_TEST_SRC([kernel_read], [ | |
48ef8ba0 BB |
38 | #include <linux/fs.h> |
39 | ],[ | |
40 | struct file *file = NULL; | |
41 | void *buf = NULL; | |
42 | size_t count = 0; | |
43 | loff_t *pos = NULL; | |
44 | ssize_t ret; | |
45 | ||
46 | ret = kernel_read(file, buf, count, pos); | |
608f8749 BB |
47 | ]) |
48 | ]) | |
49 | ||
50 | AC_DEFUN([ZFS_AC_KERNEL_READ], [ | |
51 | AC_MSG_CHECKING([whether kernel_read() takes loff_t pointer]) | |
52 | ZFS_LINUX_TEST_RESULT([kernel_read], [ | |
48ef8ba0 BB |
53 | AC_MSG_RESULT(yes) |
54 | AC_DEFINE(HAVE_KERNEL_READ_PPOS, 1, | |
55 | [kernel_read() take loff_t pointer]) | |
56 | ],[ | |
57 | AC_MSG_RESULT(no) | |
58 | ]) | |
608f8749 BB |
59 | ]) |
60 | ||
61 | AC_DEFUN([ZFS_AC_KERNEL_SRC_RW], [ | |
62 | ZFS_AC_KERNEL_SRC_WRITE | |
63 | ZFS_AC_KERNEL_SRC_READ | |
64 | ]) | |
65 | ||
66 | AC_DEFUN([ZFS_AC_KERNEL_RW], [ | |
67 | ZFS_AC_KERNEL_WRITE | |
68 | ZFS_AC_KERNEL_READ | |
48ef8ba0 | 69 | ]) |