1 AC_DEFUN([OPENAFS_LINUX_KERNEL_FUNC_CHECKS],[
2 dnl Function existence checks
3 AC_CHECK_LINUX_FUNC([__vfs_write],
4 [#include <linux/fs.h>],
5 [__vfs_write(NULL, NULL, 0, NULL);])
6 AC_CHECK_LINUX_FUNC([kernel_write],
7 [#include <linux/fs.h>],
8 [kernel_write(NULL, NULL, 0, NULL);])
9 AC_CHECK_LINUX_FUNC([bdi_init],
10 [#include <linux/backing-dev.h>],
12 AC_CHECK_LINUX_FUNC([super_setup_bdi],
13 [#include <linux/backing-dev.h>],
14 [struct super_block *sb;
15 super_setup_bdi(sb);])
16 AC_CHECK_LINUX_FUNC([PageChecked],
17 [#include <linux/mm.h>
18 #include <linux/page-flags.h>],
20 int bchecked = PageChecked(_page);])
21 AC_CHECK_LINUX_FUNC([PageFsMisc],
22 [#include <linux/mm.h>
23 #include <linux/page-flags.h>],
25 int bchecked = PageFsMisc(_page);])
26 AC_CHECK_LINUX_FUNC([clear_inode],
27 [#include <linux/fs.h>],
29 AC_CHECK_LINUX_FUNC([current_kernel_time],
30 [#include <linux/time.h>],
32 s = current_kernel_time();])
33 AC_CHECK_LINUX_FUNC([d_alloc_anon],
34 [#include <linux/fs.h>],
35 [d_alloc_anon(NULL);])
36 AC_CHECK_LINUX_FUNC([d_count],
37 [#include <linux/dcache.h>],
39 AC_CHECK_LINUX_FUNC([d_make_root],
40 [#include <linux/fs.h>],
42 AC_CHECK_LINUX_FUNC([do_sync_read],
43 [#include <linux/fs.h>],
44 [do_sync_read(NULL, NULL, 0, NULL);])
45 AC_CHECK_LINUX_FUNC([file_dentry],
46 [#include <linux/fs.h>],
47 [struct file *f; file_dentry(f);])
48 AC_CHECK_LINUX_FUNC([find_task_by_pid],
49 [#include <linux/sched.h>],
50 [pid_t p; find_task_by_pid(p);])
51 AC_CHECK_LINUX_FUNC([generic_file_aio_read],
52 [#include <linux/fs.h>],
53 [generic_file_aio_read(NULL,NULL,0,0);])
54 AC_CHECK_LINUX_FUNC([grab_cache_page_write_begin],
55 [#include <linux/pagemap.h>],
56 [grab_cache_page_write_begin(NULL, 0, 0);])
57 AC_CHECK_LINUX_FUNC([hlist_unhashed],
58 [#include <linux/list.h>],
60 AC_CHECK_LINUX_FUNC([ihold],
61 [#include <linux/fs.h>],
63 AC_CHECK_LINUX_FUNC([i_size_read],
64 [#include <linux/fs.h>],
66 AC_CHECK_LINUX_FUNC([inode_setattr],
67 [#include <linux/fs.h>],
68 [inode_setattr(NULL, NULL);])
69 AC_CHECK_LINUX_FUNC([iter_file_splice_write],
70 [#include <linux/fs.h>],
71 [iter_file_splice_write(NULL,NULL,NULL,0,0);])
72 AC_CHECK_LINUX_FUNC([kernel_setsockopt],
73 [#include <linux/net.h>],
74 [kernel_setsockopt(NULL, 0, 0, NULL, 0);])
75 AC_CHECK_LINUX_FUNC([ktime_get_coarse_real_ts64],
76 [#include <linux/time.h>],
77 [struct timespec64 *s;
78 ktime_get_coarse_real_ts64(s);])
79 AC_CHECK_LINUX_FUNC([locks_lock_file_wait],
80 [#include <linux/fs.h>],
81 [locks_lock_file_wait(NULL, NULL);])
82 AC_CHECK_LINUX_FUNC([page_follow_link],
83 [#include <linux/fs.h>],
84 [page_follow_link(0,0);])
85 AC_CHECK_LINUX_FUNC([page_get_link],
86 [#include <linux/fs.h>],
87 [page_get_link(0,0,0);])
88 AC_CHECK_LINUX_FUNC([page_offset],
89 [#include <linux/pagemap.h>],
91 AC_CHECK_LINUX_FUNC([pagevec_lru_add_file],
92 [#include <linux/pagevec.h>],
93 [__pagevec_lru_add_file(NULL);])
94 AC_CHECK_LINUX_FUNC([path_lookup],
95 [#include <linux/fs.h>
96 #include <linux/namei.h>],
97 [path_lookup(NULL, 0, NULL);])
98 AC_CHECK_LINUX_FUNC([proc_create],
99 [#include <linux/proc_fs.h>],
100 [proc_create(NULL, 0, NULL, NULL);])
101 AC_CHECK_LINUX_FUNC([rcu_read_lock],
102 [#include <linux/rcupdate.h>],
104 AC_CHECK_LINUX_FUNC([set_nlink],
105 [#include <linux/fs.h>],
106 [set_nlink(NULL, 1);])
107 AC_CHECK_LINUX_FUNC([setattr_prepare],
108 [#include <linux/fs.h>],
109 [setattr_prepare(NULL, NULL);])
110 AC_CHECK_LINUX_FUNC([sock_create_kern],
111 [#include <linux/net.h>],
112 [sock_create_kern(0, 0, 0, NULL);])
113 AC_CHECK_LINUX_FUNC([sock_create_kern_ns],
114 [#include <linux/net.h>],
115 [sock_create_kern(NULL, 0, 0, 0, NULL);])
116 AC_CHECK_LINUX_FUNC([splice_direct_to_actor],
117 [#include <linux/splice.h>],
118 [splice_direct_to_actor(NULL,NULL,NULL);])
119 AC_CHECK_LINUX_FUNC([default_file_splice_read],
120 [#include <linux/fs.h>],
121 [default_file_splice_read(NULL,NULL,NULL, 0, 0);])
122 AC_CHECK_LINUX_FUNC([svc_addr_in],
123 [#include <linux/sunrpc/svc.h>],
124 [svc_addr_in(NULL);])
125 AC_CHECK_LINUX_FUNC([zero_user_segments],
126 [#include <linux/highmem.h>],
127 [zero_user_segments(NULL, 0, 0, 0, 0);])
128 AC_CHECK_LINUX_FUNC([noop_fsync],
129 [#include <linux/fs.h>],
130 [void *address = &noop_fsync; printk("%p\n", address)];)
131 AC_CHECK_LINUX_FUNC([kthread_run],
132 [#include <linux/kernel.h>
133 #include <linux/kthread.h>],
134 [kthread_run(NULL, NULL, "test");])
135 AC_CHECK_LINUX_FUNC([inode_nohighmem],
136 [#include <linux/fs.h>],
137 [inode_nohighmem(NULL);])
138 AC_CHECK_LINUX_FUNC([inode_lock],
139 [#include <linux/fs.h>],
142 dnl Consequences - things which get set as a result of the
144 AS_IF([test "x$ac_cv_linux_func_d_alloc_anon" = "xno"],
145 [AC_DEFINE([AFS_NONFSTRANS], 1,
146 [define to disable the nfs translator])])