344 lines
8.8 KiB
Plaintext
344 lines
8.8 KiB
Plaintext
dnl #
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dnl # 2.6.38 API change,
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dnl # Added blkdev_get_by_path()
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV_GET_BY_PATH], [
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ZFS_LINUX_TEST_SRC([blkdev_get_by_path], [
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#include <linux/fs.h>
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#include <linux/blkdev.h>
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], [
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struct block_device *bdev __attribute__ ((unused)) = NULL;
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const char *path = "path";
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fmode_t mode = 0;
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void *holder = NULL;
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bdev = blkdev_get_by_path(path, mode, holder);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_GET_BY_PATH], [
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AC_MSG_CHECKING([whether blkdev_get_by_path() exists])
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ZFS_LINUX_TEST_RESULT([blkdev_get_by_path], [
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AC_MSG_RESULT(yes)
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], [
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ZFS_LINUX_TEST_ERROR([blkdev_get_by_path()])
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])
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])
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dnl #
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dnl # 2.6.38 API change,
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dnl # Added blkdev_put()
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV_PUT], [
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ZFS_LINUX_TEST_SRC([blkdev_put], [
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#include <linux/fs.h>
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#include <linux/blkdev.h>
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], [
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struct block_device *bdev = NULL;
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fmode_t mode = 0;
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blkdev_put(bdev, mode);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_PUT], [
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AC_MSG_CHECKING([whether blkdev_put() exists])
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ZFS_LINUX_TEST_RESULT([blkdev_put], [
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AC_MSG_RESULT(yes)
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], [
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ZFS_LINUX_TEST_ERROR([blkdev_put()])
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])
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])
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dnl #
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dnl # 4.1 API, exported blkdev_reread_part() symbol, back ported to the
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dnl # 3.10.0 CentOS 7.x enterprise kernels.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV_REREAD_PART], [
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ZFS_LINUX_TEST_SRC([blkdev_reread_part], [
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#include <linux/fs.h>
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#include <linux/blkdev.h>
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], [
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struct block_device *bdev = NULL;
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int error;
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error = blkdev_reread_part(bdev);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_REREAD_PART], [
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AC_MSG_CHECKING([whether blkdev_reread_part() exists])
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ZFS_LINUX_TEST_RESULT([blkdev_reread_part], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLKDEV_REREAD_PART, 1,
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[blkdev_reread_part() 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 # check_disk_change() was removed in 5.10
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV_CHECK_DISK_CHANGE], [
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ZFS_LINUX_TEST_SRC([check_disk_change], [
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#include <linux/fs.h>
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#include <linux/blkdev.h>
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], [
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struct block_device *bdev = NULL;
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bool error;
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error = check_disk_change(bdev);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_CHECK_DISK_CHANGE], [
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AC_MSG_CHECKING([whether check_disk_change() exists])
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ZFS_LINUX_TEST_RESULT([check_disk_change], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_CHECK_DISK_CHANGE, 1,
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[check_disk_change() 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 # 5.10 API, check_disk_change() is removed, in favor of
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dnl # bdev_check_media_change(), which doesn't force revalidation
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV_BDEV_CHECK_MEDIA_CHANGE], [
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ZFS_LINUX_TEST_SRC([bdev_check_media_change], [
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#include <linux/fs.h>
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#include <linux/blkdev.h>
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], [
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struct block_device *bdev = NULL;
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int error;
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error = bdev_check_media_change(bdev);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_BDEV_CHECK_MEDIA_CHANGE], [
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AC_MSG_CHECKING([whether bdev_disk_changed() exists])
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ZFS_LINUX_TEST_RESULT([bdev_check_media_change], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BDEV_CHECK_MEDIA_CHANGE, 1,
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[bdev_check_media_change() 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 # 2.6.22 API change
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dnl # Single argument invalidate_bdev()
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV_INVALIDATE_BDEV], [
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ZFS_LINUX_TEST_SRC([invalidate_bdev], [
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#include <linux/buffer_head.h>
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#include <linux/blkdev.h>
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],[
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struct block_device *bdev = NULL;
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invalidate_bdev(bdev);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_INVALIDATE_BDEV], [
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AC_MSG_CHECKING([whether invalidate_bdev() exists])
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ZFS_LINUX_TEST_RESULT([invalidate_bdev], [
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AC_MSG_RESULT(yes)
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],[
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ZFS_LINUX_TEST_ERROR([invalidate_bdev()])
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])
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])
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dnl #
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dnl # 5.11 API, lookup_bdev() takes dev_t argument.
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dnl # 2.6.27 API, lookup_bdev() was first exported.
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dnl # 4.4.0-6.21 API, lookup_bdev() on Ubuntu takes mode argument.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV_LOOKUP_BDEV], [
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ZFS_LINUX_TEST_SRC([lookup_bdev_devt], [
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#include <linux/blkdev.h>
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], [
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int error __attribute__ ((unused));
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const char path[] = "/example/path";
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dev_t dev;
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error = lookup_bdev(path, &dev);
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])
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ZFS_LINUX_TEST_SRC([lookup_bdev_1arg], [
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#include <linux/fs.h>
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#include <linux/blkdev.h>
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], [
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struct block_device *bdev __attribute__ ((unused));
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const char path[] = "/example/path";
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bdev = lookup_bdev(path);
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])
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ZFS_LINUX_TEST_SRC([lookup_bdev_mode], [
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#include <linux/fs.h>
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], [
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struct block_device *bdev __attribute__ ((unused));
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const char path[] = "/example/path";
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bdev = lookup_bdev(path, FMODE_READ);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_LOOKUP_BDEV], [
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AC_MSG_CHECKING([whether lookup_bdev() wants dev_t arg])
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ZFS_LINUX_TEST_RESULT_SYMBOL([lookup_bdev_devt],
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[lookup_bdev], [fs/block_dev.c], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_DEVT_LOOKUP_BDEV, 1,
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[lookup_bdev() wants dev_t arg])
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], [
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING([whether lookup_bdev() wants 1 arg])
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ZFS_LINUX_TEST_RESULT_SYMBOL([lookup_bdev_1arg],
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[lookup_bdev], [fs/block_dev.c], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_1ARG_LOOKUP_BDEV, 1,
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[lookup_bdev() wants 1 arg])
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], [
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING([whether lookup_bdev() wants mode arg])
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ZFS_LINUX_TEST_RESULT_SYMBOL([lookup_bdev_mode],
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[lookup_bdev], [fs/block_dev.c], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_MODE_LOOKUP_BDEV, 1,
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[lookup_bdev() wants mode arg])
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], [
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ZFS_LINUX_TEST_ERROR([lookup_bdev()])
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])
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])
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])
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])
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dnl #
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dnl # 2.6.30 API change
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dnl #
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dnl # The bdev_physical_block_size() interface was added to provide a way
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dnl # to determine the smallest write which can be performed without a
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dnl # read-modify-write operation.
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dnl #
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dnl # Unfortunately, this interface isn't entirely reliable because
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dnl # drives are sometimes known to misreport this value.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV_BDEV_PHYSICAL_BLOCK_SIZE], [
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ZFS_LINUX_TEST_SRC([bdev_physical_block_size], [
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#include <linux/blkdev.h>
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],[
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struct block_device *bdev __attribute__ ((unused)) = NULL;
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bdev_physical_block_size(bdev);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_BDEV_PHYSICAL_BLOCK_SIZE], [
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AC_MSG_CHECKING([whether bdev_physical_block_size() is available])
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ZFS_LINUX_TEST_RESULT([bdev_physical_block_size], [
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AC_MSG_RESULT(yes)
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],[
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ZFS_LINUX_TEST_ERROR([bdev_physical_block_size()])
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])
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])
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dnl #
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dnl # 2.6.30 API change
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dnl # Added bdev_logical_block_size().
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV_BDEV_LOGICAL_BLOCK_SIZE], [
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ZFS_LINUX_TEST_SRC([bdev_logical_block_size], [
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#include <linux/blkdev.h>
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],[
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struct block_device *bdev __attribute__ ((unused)) = NULL;
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bdev_logical_block_size(bdev);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_BDEV_LOGICAL_BLOCK_SIZE], [
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AC_MSG_CHECKING([whether bdev_logical_block_size() is available])
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ZFS_LINUX_TEST_RESULT([bdev_logical_block_size], [
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AC_MSG_RESULT(yes)
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],[
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ZFS_LINUX_TEST_ERROR([bdev_logical_block_size()])
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])
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])
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dnl #
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dnl # 5.11 API change
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dnl # Added bdev_whole() helper.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV_BDEV_WHOLE], [
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ZFS_LINUX_TEST_SRC([bdev_whole], [
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#include <linux/blkdev.h>
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],[
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struct block_device *bdev = NULL;
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bdev = bdev_whole(bdev);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_BDEV_WHOLE], [
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AC_MSG_CHECKING([whether bdev_whole() is available])
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ZFS_LINUX_TEST_RESULT([bdev_whole], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BDEV_WHOLE, 1, [bdev_whole() 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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dnl #
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dnl # 5.13 API change
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dnl # blkdev_get_by_path() no longer handles ERESTARTSYS
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dnl #
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dnl # Unfortunately we're forced to rely solely on the kernel version
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dnl # number in order to determine the expected behavior. This was an
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dnl # internal change to blkdev_get_by_dev(), see commit a8ed1a0607.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_GET_ERESTARTSYS], [
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AC_MSG_CHECKING([whether blkdev_get_by_path() handles ERESTARTSYS])
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AS_VERSION_COMPARE([$LINUX_VERSION], [5.13.0], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLKDEV_GET_ERESTARTSYS, 1,
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[blkdev_get_by_path() handles ERESTARTSYS])
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],[
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AC_MSG_RESULT(no)
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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_BLKDEV], [
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ZFS_AC_KERNEL_SRC_BLKDEV_GET_BY_PATH
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ZFS_AC_KERNEL_SRC_BLKDEV_PUT
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ZFS_AC_KERNEL_SRC_BLKDEV_REREAD_PART
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ZFS_AC_KERNEL_SRC_BLKDEV_INVALIDATE_BDEV
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ZFS_AC_KERNEL_SRC_BLKDEV_LOOKUP_BDEV
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ZFS_AC_KERNEL_SRC_BLKDEV_BDEV_LOGICAL_BLOCK_SIZE
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ZFS_AC_KERNEL_SRC_BLKDEV_BDEV_PHYSICAL_BLOCK_SIZE
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ZFS_AC_KERNEL_SRC_BLKDEV_CHECK_DISK_CHANGE
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ZFS_AC_KERNEL_SRC_BLKDEV_BDEV_CHECK_MEDIA_CHANGE
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ZFS_AC_KERNEL_SRC_BLKDEV_BDEV_WHOLE
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLKDEV], [
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ZFS_AC_KERNEL_BLKDEV_GET_BY_PATH
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ZFS_AC_KERNEL_BLKDEV_PUT
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ZFS_AC_KERNEL_BLKDEV_REREAD_PART
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ZFS_AC_KERNEL_BLKDEV_INVALIDATE_BDEV
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ZFS_AC_KERNEL_BLKDEV_LOOKUP_BDEV
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ZFS_AC_KERNEL_BLKDEV_BDEV_LOGICAL_BLOCK_SIZE
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ZFS_AC_KERNEL_BLKDEV_BDEV_PHYSICAL_BLOCK_SIZE
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ZFS_AC_KERNEL_BLKDEV_CHECK_DISK_CHANGE
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ZFS_AC_KERNEL_BLKDEV_BDEV_CHECK_MEDIA_CHANGE
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ZFS_AC_KERNEL_BLKDEV_BDEV_WHOLE
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ZFS_AC_KERNEL_BLKDEV_GET_ERESTARTSYS
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])
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