55 lines
1.3 KiB
Plaintext
55 lines
1.3 KiB
Plaintext
dnl #
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dnl # 2.6.32-2.6.35 API - The BIO_RW_UNPLUG enum can be used as a hint
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dnl # to unplug the queue.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_RW_UNPLUG], [
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ZFS_LINUX_TEST_SRC([blk_queue_bio_rw_unplug], [
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#include <linux/blkdev.h>
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],[
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enum bio_rw_flags rw __attribute__ ((unused)) = BIO_RW_UNPLUG;
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BIO_RW_UNPLUG], [
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AC_MSG_CHECKING([whether the BIO_RW_UNPLUG enum is available])
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ZFS_LINUX_TEST_RESULT([blk_queue_bio_rw_unplug], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_HAVE_BIO_RW_UNPLUG, 1,
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[BIO_RW_UNPLUG is available])
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],[
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AC_MSG_RESULT(no)
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_PLUG], [
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ZFS_LINUX_TEST_SRC([blk_plug], [
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#include <linux/blkdev.h>
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],[
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struct blk_plug plug __attribute__ ((unused));
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blk_start_plug(&plug);
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blk_finish_plug(&plug);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_PLUG], [
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AC_MSG_CHECKING([whether struct blk_plug is available])
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ZFS_LINUX_TEST_RESULT([blk_plug], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_HAVE_BLK_PLUG, 1,
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[struct blk_plug is available])
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],[
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AC_MSG_RESULT(no)
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_PLUG], [
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ZFS_AC_KERNEL_SRC_BIO_RW_UNPLUG
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ZFS_AC_KERNEL_SRC_BLK_PLUG
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_PLUG], [
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ZFS_AC_KERNEL_BIO_RW_UNPLUG
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ZFS_AC_KERNEL_BLK_PLUG
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])
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