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a1d9543a CD |
1 | dnl # |
2 | dnl # 3.10.x API change | |
3 | dnl # | |
4 | AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID], [ | |
5 | AC_MSG_CHECKING([whether block_device_operations.release is void]) | |
6 | tmp_flags="$EXTRA_KCFLAGS" | |
7 | EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}" | |
8 | ZFS_LINUX_TRY_COMPILE([ | |
9 | #include <linux/blkdev.h> | |
10 | ||
11 | void blk_release(struct gendisk *g, fmode_t mode) { return; } | |
12 | ||
13 | static const struct block_device_operations | |
14 | bops __attribute__ ((unused)) = { | |
15 | .open = NULL, | |
16 | .release = blk_release, | |
17 | .ioctl = NULL, | |
18 | .compat_ioctl = NULL, | |
19 | }; | |
20 | ],[ | |
21 | ],[ | |
22 | AC_MSG_RESULT(void) | |
23 | AC_DEFINE(HAVE_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID, 1, | |
24 | [struct block_device_operations.release returns void]) | |
25 | ],[ | |
26 | AC_MSG_RESULT(int) | |
27 | ]) | |
28 | EXTRA_KCFLAGS="$tmp_flags" | |
29 | ]) |