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87d546d8 TG |
1 | dnl # |
2 | dnl # 2.6.27, lookup_bdev() was exported. | |
3 | dnl # 4.4.0-6.21 - x.y on Ubuntu, lookup_bdev() takes 2 arguments. | |
4 | dnl # | |
5 | AC_DEFUN([ZFS_AC_KERNEL_LOOKUP_BDEV], | |
6 | [AC_MSG_CHECKING([whether lookup_bdev() wants 1 arg]) | |
7 | ZFS_LINUX_TRY_COMPILE_SYMBOL([ | |
8 | #include <linux/fs.h> | |
9 | ], [ | |
10 | lookup_bdev(NULL); | |
11 | ], [lookup_bdev], [fs/block_dev.c], [ | |
12 | AC_MSG_RESULT(yes) | |
13 | AC_DEFINE(HAVE_1ARG_LOOKUP_BDEV, 1, [lookup_bdev() wants 1 arg]) | |
14 | ], [ | |
15 | AC_MSG_RESULT(no) | |
16 | AC_MSG_CHECKING([whether lookup_bdev() wants 2 args]) | |
17 | ZFS_LINUX_TRY_COMPILE_SYMBOL([ | |
18 | #include <linux/fs.h> | |
19 | ], [ | |
20 | lookup_bdev(NULL, FMODE_READ); | |
21 | ], [lookup_bdev], [fs/block_dev.c], [ | |
22 | AC_MSG_RESULT(yes) | |
23 | AC_DEFINE(HAVE_2ARGS_LOOKUP_BDEV, 1, | |
24 | [lookup_bdev() wants 2 args]) | |
25 | ], [ | |
26 | AC_MSG_RESULT(no) | |
27 | ]) | |
28 | ]) | |
29 | ]) |