303 lines
8.1 KiB
Plaintext
303 lines
8.1 KiB
Plaintext
dnl #
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dnl # 2.6.39 API change,
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dnl # blk_start_plug() and blk_finish_plug()
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_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_QUEUE_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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],[
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ZFS_LINUX_TEST_ERROR([blk_plug])
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])
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])
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dnl #
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dnl # 2.6.32 - 4.11, statically allocated bdi in request_queue
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dnl # 4.12 - x.y, dynamically allocated bdi in request_queue
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_BDI], [
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ZFS_LINUX_TEST_SRC([blk_queue_bdi], [
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#include <linux/blkdev.h>
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],[
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struct request_queue q;
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struct backing_dev_info bdi;
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q.backing_dev_info = &bdi;
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_BDI], [
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AC_MSG_CHECKING([whether blk_queue bdi is dynamic])
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ZFS_LINUX_TEST_RESULT([blk_queue_bdi], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_BDI_DYNAMIC, 1,
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[blk queue backing_dev_info is dynamic])
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],[
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AC_MSG_RESULT(no)
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])
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])
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dnl #
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dnl # 2.6.32 - 4.x API,
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dnl # blk_queue_discard()
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_DISCARD], [
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ZFS_LINUX_TEST_SRC([blk_queue_discard], [
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#include <linux/blkdev.h>
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],[
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struct request_queue *q __attribute__ ((unused)) = NULL;
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int value __attribute__ ((unused));
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value = blk_queue_discard(q);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_DISCARD], [
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AC_MSG_CHECKING([whether blk_queue_discard() is available])
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ZFS_LINUX_TEST_RESULT([blk_queue_discard], [
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AC_MSG_RESULT(yes)
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],[
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ZFS_LINUX_TEST_ERROR([blk_queue_discard])
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])
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])
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dnl #
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dnl # 4.8 - 4.x API,
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dnl # blk_queue_secure_erase()
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dnl #
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dnl # 2.6.36 - 4.7 API,
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dnl # blk_queue_secdiscard()
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_SECURE_ERASE], [
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ZFS_LINUX_TEST_SRC([blk_queue_secure_erase], [
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#include <linux/blkdev.h>
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],[
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struct request_queue *q __attribute__ ((unused)) = NULL;
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int value __attribute__ ((unused));
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value = blk_queue_secure_erase(q);
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])
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ZFS_LINUX_TEST_SRC([blk_queue_secdiscard], [
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#include <linux/blkdev.h>
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],[
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struct request_queue *q __attribute__ ((unused)) = NULL;
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int value __attribute__ ((unused));
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value = blk_queue_secdiscard(q);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_SECURE_ERASE], [
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AC_MSG_CHECKING([whether blk_queue_secure_erase() is available])
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ZFS_LINUX_TEST_RESULT([blk_queue_secure_erase], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_SECURE_ERASE, 1,
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[blk_queue_secure_erase() is available])
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],[
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING([whether blk_queue_secdiscard() is available])
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ZFS_LINUX_TEST_RESULT([blk_queue_secdiscard], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_SECDISCARD, 1,
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[blk_queue_secdiscard() is available])
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],[
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ZFS_LINUX_TEST_ERROR([blk_queue_secure_erase])
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])
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])
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])
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dnl #
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dnl # 4.16 API change,
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dnl # Introduction of blk_queue_flag_set and blk_queue_flag_clear
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLAG_SET], [
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ZFS_LINUX_TEST_SRC([blk_queue_flag_set], [
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#include <linux/kernel.h>
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#include <linux/blkdev.h>
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],[
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struct request_queue *q = NULL;
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blk_queue_flag_set(0, q);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLAG_SET], [
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AC_MSG_CHECKING([whether blk_queue_flag_set() exists])
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ZFS_LINUX_TEST_RESULT([blk_queue_flag_set], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_FLAG_SET, 1,
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[blk_queue_flag_set() exists])
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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_FLAG_CLEAR], [
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ZFS_LINUX_TEST_SRC([blk_queue_flag_clear], [
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#include <linux/kernel.h>
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#include <linux/blkdev.h>
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],[
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struct request_queue *q = NULL;
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blk_queue_flag_clear(0, q);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLAG_CLEAR], [
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AC_MSG_CHECKING([whether blk_queue_flag_clear() exists])
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ZFS_LINUX_TEST_RESULT([blk_queue_flag_clear], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_FLAG_CLEAR, 1,
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[blk_queue_flag_clear() exists])
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],[
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AC_MSG_RESULT(no)
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])
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])
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dnl #
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dnl # 2.6.36 API change,
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dnl # Added blk_queue_flush() interface, while the previous interface
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dnl # was available to all the new one is GPL-only. Thus in addition to
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dnl # detecting if this function is available we determine if it is
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dnl # GPL-only. If the GPL-only interface is there we implement our own
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dnl # compatibility function, otherwise we use the function. The hope
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dnl # is that long term this function will be opened up.
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dnl #
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dnl # 4.7 API change,
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dnl # Replace blk_queue_flush with blk_queue_write_cache
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLUSH], [
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ZFS_LINUX_TEST_SRC([blk_queue_flush], [
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#include <linux/blkdev.h>
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], [
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struct request_queue *q = NULL;
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(void) blk_queue_flush(q, REQ_FLUSH);
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], [$NO_UNUSED_BUT_SET_VARIABLE], [$ZFS_META_LICENSE])
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ZFS_LINUX_TEST_SRC([blk_queue_write_cache], [
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#include <linux/kernel.h>
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#include <linux/blkdev.h>
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], [
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struct request_queue *q = NULL;
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blk_queue_write_cache(q, true, true);
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], [$NO_UNUSED_BUT_SET_VARIABLE], [$ZFS_META_LICENSE])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLUSH], [
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AC_MSG_CHECKING([whether blk_queue_flush() is available])
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ZFS_LINUX_TEST_RESULT([blk_queue_flush], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_FLUSH, 1,
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[blk_queue_flush() is available])
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AC_MSG_CHECKING([whether blk_queue_flush() is GPL-only])
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ZFS_LINUX_TEST_RESULT([blk_queue_flush_license], [
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AC_MSG_RESULT(no)
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_FLUSH_GPL_ONLY, 1,
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[blk_queue_flush() is GPL-only])
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])
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],[
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AC_MSG_RESULT(no)
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])
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dnl #
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dnl # 4.7 API change
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dnl # Replace blk_queue_flush with blk_queue_write_cache
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dnl #
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AC_MSG_CHECKING([whether blk_queue_write_cache() exists])
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ZFS_LINUX_TEST_RESULT([blk_queue_write_cache], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_WRITE_CACHE, 1,
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[blk_queue_write_cache() exists])
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AC_MSG_CHECKING([whether blk_queue_write_cache() is GPL-only])
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ZFS_LINUX_TEST_RESULT([blk_queue_write_cache_license], [
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AC_MSG_RESULT(no)
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_WRITE_CACHE_GPL_ONLY, 1,
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[blk_queue_write_cache() is GPL-only])
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])
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],[
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AC_MSG_RESULT(no)
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])
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])
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dnl #
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dnl # 2.6.34 API change
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dnl # blk_queue_max_hw_sectors() replaces blk_queue_max_sectors().
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_MAX_HW_SECTORS], [
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ZFS_LINUX_TEST_SRC([blk_queue_max_hw_sectors], [
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#include <linux/blkdev.h>
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], [
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struct request_queue *q = NULL;
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(void) blk_queue_max_hw_sectors(q, BLK_SAFE_MAX_SECTORS);
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], [$NO_UNUSED_BUT_SET_VARIABLE])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_MAX_HW_SECTORS], [
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AC_MSG_CHECKING([whether blk_queue_max_hw_sectors() is available])
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ZFS_LINUX_TEST_RESULT([blk_queue_max_hw_sectors], [
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AC_MSG_RESULT(yes)
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],[
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ZFS_LINUX_TEST_ERROR([blk_queue_max_hw_sectors])
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])
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])
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dnl #
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dnl # 2.6.34 API change
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dnl # blk_queue_max_segments() consolidates blk_queue_max_hw_segments()
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dnl # and blk_queue_max_phys_segments().
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_MAX_SEGMENTS], [
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ZFS_LINUX_TEST_SRC([blk_queue_max_segments], [
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#include <linux/blkdev.h>
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], [
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struct request_queue *q = NULL;
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(void) blk_queue_max_segments(q, BLK_MAX_SEGMENTS);
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], [$NO_UNUSED_BUT_SET_VARIABLE])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_MAX_SEGMENTS], [
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AC_MSG_CHECKING([whether blk_queue_max_segments() is available])
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ZFS_LINUX_TEST_RESULT([blk_queue_max_segments], [
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AC_MSG_RESULT(yes)
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], [
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ZFS_LINUX_TEST_ERROR([blk_queue_max_segments])
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE], [
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_PLUG
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_BDI
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_DISCARD
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_SECURE_ERASE
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLAG_SET
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLAG_CLEAR
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLUSH
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_MAX_HW_SECTORS
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_MAX_SEGMENTS
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE], [
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ZFS_AC_KERNEL_BLK_QUEUE_PLUG
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ZFS_AC_KERNEL_BLK_QUEUE_BDI
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ZFS_AC_KERNEL_BLK_QUEUE_DISCARD
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ZFS_AC_KERNEL_BLK_QUEUE_SECURE_ERASE
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ZFS_AC_KERNEL_BLK_QUEUE_FLAG_SET
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ZFS_AC_KERNEL_BLK_QUEUE_FLAG_CLEAR
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ZFS_AC_KERNEL_BLK_QUEUE_FLUSH
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ZFS_AC_KERNEL_BLK_QUEUE_MAX_HW_SECTORS
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ZFS_AC_KERNEL_BLK_QUEUE_MAX_SEGMENTS
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])
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