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Commit | Line | Data |
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6d1d976b BB |
1 | dnl # |
2 | dnl # 2.6.36 API change | |
3 | dnl # Verify the elevator_change() symbol is available. | |
4 | dnl # | |
5 | AC_DEFUN([ZFS_AC_KERNEL_ELEVATOR_CHANGE], [ | |
6 | AC_MSG_CHECKING([whether elevator_change() is available]) | |
7 | tmp_flags="$EXTRA_KCFLAGS" | |
e191b54e | 8 | EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}" |
6d1d976b BB |
9 | ZFS_LINUX_TRY_COMPILE([ |
10 | #include <linux/blkdev.h> | |
11 | #include <linux/elevator.h> | |
12 | ],[ | |
13 | int ret; | |
14 | struct request_queue *q = NULL; | |
15 | char *elevator = NULL; | |
16 | ret = elevator_change(q, elevator); | |
17 | ],[ | |
18 | AC_MSG_RESULT(yes) | |
19 | AC_DEFINE(HAVE_ELEVATOR_CHANGE, 1, | |
20 | [elevator_change() is available]) | |
21 | ],[ | |
22 | AC_MSG_RESULT(no) | |
23 | ]) | |
24 | EXTRA_KCFLAGS="$tmp_flags" | |
25 | ]) |