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Commit | Line | Data |
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c9c0d073 BB |
1 | dnl # |
2 | dnl # 2.6.31 API change | |
3 | dnl # Request queue peek/retrieval interface cleanup, the blk_fetch_request() | |
4 | dnl # function replaces the elv_next_request() and blk_fetch_request() | |
5 | dnl # functions. The updated blk_fetch_request() function returns the | |
6 | dnl # next available request and removed it from the request queue. | |
7 | dnl # | |
8 | AC_DEFUN([ZFS_AC_KERNEL_BLK_FETCH_REQUEST], [ | |
9 | AC_MSG_CHECKING([whether blk_fetch_request() is available]) | |
b9c59ec8 | 10 | tmp_flags="$EXTRA_KCFLAGS" |
e191b54e | 11 | EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}" |
c9c0d073 BB |
12 | ZFS_LINUX_TRY_COMPILE([ |
13 | #include <linux/blkdev.h> | |
14 | ],[ | |
15 | struct request_queue *q = NULL; | |
16 | (void) blk_fetch_request(q); | |
17 | ],[ | |
18 | AC_MSG_RESULT(yes) | |
19 | AC_DEFINE(HAVE_BLK_FETCH_REQUEST, 1, | |
20 | [blk_fetch_request() is available]) | |
21 | ],[ | |
22 | AC_MSG_RESULT(no) | |
23 | ]) | |
b9c59ec8 | 24 | EXTRA_KCFLAGS="$tmp_flags" |
c9c0d073 | 25 | ]) |