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87d546d8 TG |
1 | dnl # |
2 | dnl # 2.6.32 - 2.6.33, bdi_setup_and_register() is not exported. | |
3 | dnl # 2.6.34 - 3.19, bdi_setup_and_register() takes 3 arguments. | |
4 | dnl # 4.0 - x.y, bdi_setup_and_register() takes 2 arguments. | |
5 | dnl # | |
6 | AC_DEFUN([ZFS_AC_KERNEL_BDI_SETUP_AND_REGISTER], [ | |
7 | AC_MSG_CHECKING([whether bdi_setup_and_register() wants 2 args]) | |
8 | ZFS_LINUX_TRY_COMPILE_SYMBOL([ | |
9 | #include <linux/backing-dev.h> | |
10 | struct backing_dev_info bdi; | |
11 | ], [ | |
12 | char *name = "bdi"; | |
13 | int error __attribute__((unused)) = | |
14 | bdi_setup_and_register(&bdi, name); | |
15 | ], [bdi_setup_and_register], [mm/backing-dev.c], [ | |
16 | AC_MSG_RESULT(yes) | |
17 | AC_DEFINE(HAVE_2ARGS_BDI_SETUP_AND_REGISTER, 1, | |
18 | [bdi_setup_and_register() wants 2 args]) | |
19 | ], [ | |
20 | AC_MSG_RESULT(no) | |
21 | AC_MSG_CHECKING([whether bdi_setup_and_register() wants 3 args]) | |
22 | ZFS_LINUX_TRY_COMPILE_SYMBOL([ | |
23 | #include <linux/backing-dev.h> | |
24 | struct backing_dev_info bdi; | |
25 | ], [ | |
26 | char *name = "bdi"; | |
27 | unsigned int cap = BDI_CAP_MAP_COPY; | |
28 | int error __attribute__((unused)) = | |
29 | bdi_setup_and_register(&bdi, name, cap); | |
30 | ], [bdi_setup_and_register], [mm/backing-dev.c], [ | |
31 | AC_MSG_RESULT(yes) | |
32 | AC_DEFINE(HAVE_3ARGS_BDI_SETUP_AND_REGISTER, 1, | |
33 | [bdi_setup_and_register() wants 3 args]) | |
34 | ], [ | |
35 | AC_MSG_RESULT(no) | |
36 | ]) | |
37 | ]) | |
38 | ]) |