22 lines
483 B
Text
22 lines
483 B
Text
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dnl #
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dnl # 2.6.x API change
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_GET_DISK_RO], [
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AC_MSG_CHECKING([whether get_disk_ro() is available])
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tmp_flags="$EXTRA_KCFLAGS"
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EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/blkdev.h>
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],[
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struct gendisk *disk = NULL;
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(void) get_disk_ro(disk);
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_GET_DISK_RO, 1,
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[blk_disk_ro() is available])
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],[
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AC_MSG_RESULT(no)
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])
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EXTRA_KCFLAGS="$tmp_flags"
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])
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