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mirror_zfs/config/kernel-blk-queue.m4
наб 72154bd6c9 libtpool: -Wno-clobbered 
Also remove -Wno-unused-but-set-variable

Upstream-bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61118
Reviewed-by: Alejandro Colomar <alx.manpages@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13110
2022-02-18 09:34:25 -08:00

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dnl #
dnl # 2.6.39 API change,
dnl # blk_start_plug() and blk_finish_plug()
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_PLUG], [
ZFS_LINUX_TEST_SRC([blk_plug], [
#include <linux/blkdev.h>
],[
struct blk_plug plug __attribute__ ((unused));
blk_start_plug(&plug);
blk_finish_plug(&plug);
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_PLUG], [
AC_MSG_CHECKING([whether struct blk_plug is available])
ZFS_LINUX_TEST_RESULT([blk_plug], [
AC_MSG_RESULT(yes)
],[
ZFS_LINUX_TEST_ERROR([blk_plug])
])
])
dnl #
dnl # 2.6.32 - 4.11: statically allocated bdi in request_queue
dnl # 4.12: dynamically allocated bdi in request_queue
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_BDI], [
ZFS_LINUX_TEST_SRC([blk_queue_bdi], [
#include <linux/blkdev.h>
],[
struct request_queue q;
struct backing_dev_info bdi;
q.backing_dev_info = &bdi;
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_BDI], [
AC_MSG_CHECKING([whether blk_queue bdi is dynamic])
ZFS_LINUX_TEST_RESULT([blk_queue_bdi], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_BDI_DYNAMIC, 1,
[blk queue backing_dev_info is dynamic])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 5.9: added blk_queue_update_readahead(),
dnl # 5.15: renamed to disk_update_readahead()
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_UPDATE_READAHEAD], [
ZFS_LINUX_TEST_SRC([blk_queue_update_readahead], [
#include <linux/blkdev.h>
],[
struct request_queue q;
blk_queue_update_readahead(&q);
])
ZFS_LINUX_TEST_SRC([disk_update_readahead], [
#include <linux/blkdev.h>
],[
struct gendisk disk;
disk_update_readahead(&disk);
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_UPDATE_READAHEAD], [
AC_MSG_CHECKING([whether blk_queue_update_readahead() exists])
ZFS_LINUX_TEST_RESULT([blk_queue_update_readahead], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_UPDATE_READAHEAD, 1,
[blk_queue_update_readahead() exists])
],[
AC_MSG_CHECKING([whether disk_update_readahead() exists])
ZFS_LINUX_TEST_RESULT([disk_update_readahead], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_DISK_UPDATE_READAHEAD, 1,
[disk_update_readahead() exists])
],[
AC_MSG_RESULT(no)
])
])
])
dnl #
dnl # 2.6.32 API,
dnl # blk_queue_discard()
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_DISCARD], [
ZFS_LINUX_TEST_SRC([blk_queue_discard], [
#include <linux/blkdev.h>
],[
struct request_queue *q __attribute__ ((unused)) = NULL;
int value __attribute__ ((unused));
value = blk_queue_discard(q);
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_DISCARD], [
AC_MSG_CHECKING([whether blk_queue_discard() is available])
ZFS_LINUX_TEST_RESULT([blk_queue_discard], [
AC_MSG_RESULT(yes)
],[
ZFS_LINUX_TEST_ERROR([blk_queue_discard])
])
])
dnl #
dnl # 4.8 API,
dnl # blk_queue_secure_erase()
dnl #
dnl # 2.6.36 - 4.7 API,
dnl # blk_queue_secdiscard()
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_SECURE_ERASE], [
ZFS_LINUX_TEST_SRC([blk_queue_secure_erase], [
#include <linux/blkdev.h>
],[
struct request_queue *q __attribute__ ((unused)) = NULL;
int value __attribute__ ((unused));
value = blk_queue_secure_erase(q);
])
ZFS_LINUX_TEST_SRC([blk_queue_secdiscard], [
#include <linux/blkdev.h>
],[
struct request_queue *q __attribute__ ((unused)) = NULL;
int value __attribute__ ((unused));
value = blk_queue_secdiscard(q);
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_SECURE_ERASE], [
AC_MSG_CHECKING([whether blk_queue_secure_erase() is available])
ZFS_LINUX_TEST_RESULT([blk_queue_secure_erase], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_SECURE_ERASE, 1,
[blk_queue_secure_erase() is available])
],[
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether blk_queue_secdiscard() is available])
ZFS_LINUX_TEST_RESULT([blk_queue_secdiscard], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_SECDISCARD, 1,
[blk_queue_secdiscard() is available])
],[
ZFS_LINUX_TEST_ERROR([blk_queue_secure_erase])
])
])
])
dnl #
dnl # 4.16 API change,
dnl # Introduction of blk_queue_flag_set and blk_queue_flag_clear
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLAG_SET], [
ZFS_LINUX_TEST_SRC([blk_queue_flag_set], [
#include <linux/kernel.h>
#include <linux/blkdev.h>
],[
struct request_queue *q = NULL;
blk_queue_flag_set(0, q);
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLAG_SET], [
AC_MSG_CHECKING([whether blk_queue_flag_set() exists])
ZFS_LINUX_TEST_RESULT([blk_queue_flag_set], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_FLAG_SET, 1,
[blk_queue_flag_set() exists])
],[
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLAG_CLEAR], [
ZFS_LINUX_TEST_SRC([blk_queue_flag_clear], [
#include <linux/kernel.h>
#include <linux/blkdev.h>
],[
struct request_queue *q = NULL;
blk_queue_flag_clear(0, q);
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLAG_CLEAR], [
AC_MSG_CHECKING([whether blk_queue_flag_clear() exists])
ZFS_LINUX_TEST_RESULT([blk_queue_flag_clear], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_FLAG_CLEAR, 1,
[blk_queue_flag_clear() exists])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 2.6.36 API change,
dnl # Added blk_queue_flush() interface, while the previous interface
dnl # was available to all the new one is GPL-only. Thus in addition to
dnl # detecting if this function is available we determine if it is
dnl # GPL-only. If the GPL-only interface is there we implement our own
dnl # compatibility function, otherwise we use the function. The hope
dnl # is that long term this function will be opened up.
dnl #
dnl # 4.7 API change,
dnl # Replace blk_queue_flush with blk_queue_write_cache
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLUSH], [
ZFS_LINUX_TEST_SRC([blk_queue_flush], [
#include <linux/blkdev.h>
], [
struct request_queue *q __attribute__ ((unused)) = NULL;
(void) blk_queue_flush(q, REQ_FLUSH);
], [], [ZFS_META_LICENSE])
ZFS_LINUX_TEST_SRC([blk_queue_write_cache], [
#include <linux/kernel.h>
#include <linux/blkdev.h>
], [
struct request_queue *q __attribute__ ((unused)) = NULL;
blk_queue_write_cache(q, true, true);
], [], [ZFS_META_LICENSE])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLUSH], [
AC_MSG_CHECKING([whether blk_queue_flush() is available])
ZFS_LINUX_TEST_RESULT([blk_queue_flush], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_FLUSH, 1,
[blk_queue_flush() is available])
AC_MSG_CHECKING([whether blk_queue_flush() is GPL-only])
ZFS_LINUX_TEST_RESULT([blk_queue_flush_license], [
AC_MSG_RESULT(no)
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_FLUSH_GPL_ONLY, 1,
[blk_queue_flush() is GPL-only])
])
],[
AC_MSG_RESULT(no)
])
dnl #
dnl # 4.7 API change
dnl # Replace blk_queue_flush with blk_queue_write_cache
dnl #
AC_MSG_CHECKING([whether blk_queue_write_cache() exists])
ZFS_LINUX_TEST_RESULT([blk_queue_write_cache], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_WRITE_CACHE, 1,
[blk_queue_write_cache() exists])
AC_MSG_CHECKING([whether blk_queue_write_cache() is GPL-only])
ZFS_LINUX_TEST_RESULT([blk_queue_write_cache_license], [
AC_MSG_RESULT(no)
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_WRITE_CACHE_GPL_ONLY, 1,
[blk_queue_write_cache() is GPL-only])
])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 2.6.34 API change
dnl # blk_queue_max_hw_sectors() replaces blk_queue_max_sectors().
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_MAX_HW_SECTORS], [
ZFS_LINUX_TEST_SRC([blk_queue_max_hw_sectors], [
#include <linux/blkdev.h>
], [
struct request_queue *q __attribute__ ((unused)) = NULL;
(void) blk_queue_max_hw_sectors(q, BLK_SAFE_MAX_SECTORS);
], [])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_MAX_HW_SECTORS], [
AC_MSG_CHECKING([whether blk_queue_max_hw_sectors() is available])
ZFS_LINUX_TEST_RESULT([blk_queue_max_hw_sectors], [
AC_MSG_RESULT(yes)
],[
ZFS_LINUX_TEST_ERROR([blk_queue_max_hw_sectors])
])
])
dnl #
dnl # 2.6.34 API change
dnl # blk_queue_max_segments() consolidates blk_queue_max_hw_segments()
dnl # and blk_queue_max_phys_segments().
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_MAX_SEGMENTS], [
ZFS_LINUX_TEST_SRC([blk_queue_max_segments], [
#include <linux/blkdev.h>
], [
struct request_queue *q __attribute__ ((unused)) = NULL;
(void) blk_queue_max_segments(q, BLK_MAX_SEGMENTS);
], [])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_MAX_SEGMENTS], [
AC_MSG_CHECKING([whether blk_queue_max_segments() is available])
ZFS_LINUX_TEST_RESULT([blk_queue_max_segments], [
AC_MSG_RESULT(yes)
], [
ZFS_LINUX_TEST_ERROR([blk_queue_max_segments])
])
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE], [
ZFS_AC_KERNEL_SRC_BLK_QUEUE_PLUG
ZFS_AC_KERNEL_SRC_BLK_QUEUE_BDI
ZFS_AC_KERNEL_SRC_BLK_QUEUE_UPDATE_READAHEAD
ZFS_AC_KERNEL_SRC_BLK_QUEUE_DISCARD
ZFS_AC_KERNEL_SRC_BLK_QUEUE_SECURE_ERASE
ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLAG_SET
ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLAG_CLEAR
ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLUSH
ZFS_AC_KERNEL_SRC_BLK_QUEUE_MAX_HW_SECTORS
ZFS_AC_KERNEL_SRC_BLK_QUEUE_MAX_SEGMENTS
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE], [
ZFS_AC_KERNEL_BLK_QUEUE_PLUG
ZFS_AC_KERNEL_BLK_QUEUE_BDI
ZFS_AC_KERNEL_BLK_QUEUE_UPDATE_READAHEAD
ZFS_AC_KERNEL_BLK_QUEUE_DISCARD
ZFS_AC_KERNEL_BLK_QUEUE_SECURE_ERASE
ZFS_AC_KERNEL_BLK_QUEUE_FLAG_SET
ZFS_AC_KERNEL_BLK_QUEUE_FLAG_CLEAR
ZFS_AC_KERNEL_BLK_QUEUE_FLUSH
ZFS_AC_KERNEL_BLK_QUEUE_MAX_HW_SECTORS
ZFS_AC_KERNEL_BLK_QUEUE_MAX_SEGMENTS
])
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