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Commit | Line | Data |
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34037afe ED |
1 | dnl # |
2 | dnl # 2.6.34 API change | |
3 | dnl # blk_queue_max_segments() consolidates blk_queue_max_hw_segments() | |
4 | dnl # and blk_queue_max_phys_segments(). | |
5 | dnl # | |
6 | AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_MAX_SEGMENTS], [ | |
7 | AC_MSG_CHECKING([whether blk_queue_max_segments() is available]) | |
8 | tmp_flags="$EXTRA_KCFLAGS" | |
e191b54e | 9 | EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}" |
34037afe ED |
10 | ZFS_LINUX_TRY_COMPILE([ |
11 | #include <linux/blkdev.h> | |
12 | ],[ | |
13 | struct request_queue *q = NULL; | |
14 | (void) blk_queue_max_segments(q, BLK_MAX_SEGMENTS); | |
15 | ],[ | |
16 | AC_MSG_RESULT(yes) | |
17 | AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1, | |
18 | [blk_queue_max_segments() is available]) | |
19 | ],[ | |
20 | AC_MSG_RESULT(no) | |
21 | ]) | |
22 | EXTRA_KCFLAGS="$tmp_flags" | |
23 | ]) |