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58 lines
1.4 KiB
Plaintext
58 lines
1.4 KiB
Plaintext
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dnl #
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dnl # 2.6.38 API change
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS], [
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AC_MSG_CHECKING([whether bops->check_events() exists])
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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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unsigned int blk_check_events(struct gendisk *disk,
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unsigned int clearing) { return (0); }
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static const struct block_device_operations
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bops __attribute__ ((unused)) = {
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.check_events = blk_check_events,
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};
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],[
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS, 1,
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[bops->check_events() exists])
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],[
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AC_MSG_RESULT(no)
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])
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EXTRA_KCFLAGS="$tmp_flags"
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])
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dnl #
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dnl # 3.10.x API change
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID], [
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AC_MSG_CHECKING([whether bops->release() is void])
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tmp_flags="$EXTRA_KCFLAGS"
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EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/blkdev.h>
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void blk_release(struct gendisk *g, fmode_t mode) { return; }
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static const struct block_device_operations
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bops __attribute__ ((unused)) = {
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.open = NULL,
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.release = blk_release,
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.ioctl = NULL,
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.compat_ioctl = NULL,
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};
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],[
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],[
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AC_MSG_RESULT(void)
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AC_DEFINE(HAVE_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID, 1,
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[bops->release() returns void])
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],[
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AC_MSG_RESULT(int)
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])
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EXTRA_KCFLAGS="$tmp_flags"
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])
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