404 lines
9.9 KiB
Plaintext
404 lines
9.9 KiB
Plaintext
dnl #
|
|
dnl # 2.6.36 API change,
|
|
dnl # REQ_FAILFAST_{DEV|TRANSPORT|DRIVER}
|
|
dnl # REQ_DISCARD
|
|
dnl # REQ_FLUSH
|
|
dnl #
|
|
dnl # 4.8 - 4.9 API,
|
|
dnl # REQ_FLUSH was renamed to REQ_PREFLUSH
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_REQ], [
|
|
ZFS_LINUX_TEST_SRC([req_failfast_mask], [
|
|
#include <linux/bio.h>
|
|
],[
|
|
int flags __attribute__ ((unused));
|
|
flags = REQ_FAILFAST_MASK;
|
|
])
|
|
|
|
ZFS_LINUX_TEST_SRC([req_discard], [
|
|
#include <linux/bio.h>
|
|
],[
|
|
int flags __attribute__ ((unused));
|
|
flags = REQ_DISCARD;
|
|
])
|
|
|
|
ZFS_LINUX_TEST_SRC([req_flush], [
|
|
#include <linux/bio.h>
|
|
],[
|
|
int flags __attribute__ ((unused));
|
|
flags = REQ_FLUSH;
|
|
])
|
|
|
|
ZFS_LINUX_TEST_SRC([req_preflush], [
|
|
#include <linux/bio.h>
|
|
],[
|
|
int flags __attribute__ ((unused));
|
|
flags = REQ_PREFLUSH;
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO_REQ_FAILFAST_MASK], [
|
|
AC_MSG_CHECKING([whether REQ_FAILFAST_MASK is defined])
|
|
ZFS_LINUX_TEST_RESULT([req_failfast_mask], [
|
|
AC_MSG_RESULT(yes)
|
|
],[
|
|
ZFS_LINUX_TEST_ERROR([REQ_FAILFAST_MASK])
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO_REQ_DISCARD], [
|
|
AC_MSG_CHECKING([whether REQ_DISCARD is defined])
|
|
ZFS_LINUX_TEST_RESULT([req_discard], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_REQ_DISCARD, 1, [REQ_DISCARD is defined])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO_REQ_FLUSH], [
|
|
AC_MSG_CHECKING([whether REQ_FLUSH is defined])
|
|
ZFS_LINUX_TEST_RESULT([req_flush], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_REQ_FLUSH, 1, [REQ_FLUSH is defined])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO_REQ_PREFLUSH], [
|
|
AC_MSG_CHECKING([whether REQ_PREFLUSH is defined])
|
|
ZFS_LINUX_TEST_RESULT([req_preflush], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_REQ_PREFLUSH, 1, [REQ_PREFLUSH is defined])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # Linux 4.8 API,
|
|
dnl #
|
|
dnl # The bio_op() helper was introduced as a replacement for explicitly
|
|
dnl # checking the bio->bi_rw flags. The following checks are used to
|
|
dnl # detect if a specific operation is supported.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_OPS], [
|
|
ZFS_LINUX_TEST_SRC([req_op_discard], [
|
|
#include <linux/blk_types.h>
|
|
],[
|
|
int op __attribute__ ((unused)) = REQ_OP_DISCARD;
|
|
])
|
|
|
|
ZFS_LINUX_TEST_SRC([req_op_secure_erase], [
|
|
#include <linux/blk_types.h>
|
|
],[
|
|
int op __attribute__ ((unused)) = REQ_OP_SECURE_ERASE;
|
|
])
|
|
|
|
ZFS_LINUX_TEST_SRC([req_op_flush], [
|
|
#include <linux/blk_types.h>
|
|
],[
|
|
int op __attribute__ ((unused)) = REQ_OP_FLUSH;
|
|
])
|
|
|
|
ZFS_LINUX_TEST_SRC([bio_bi_opf], [
|
|
#include <linux/bio.h>
|
|
],[
|
|
struct bio bio __attribute__ ((unused));
|
|
bio.bi_opf = 0;
|
|
])
|
|
|
|
ZFS_LINUX_TEST_SRC([bio_set_op_attrs], [
|
|
#include <linux/bio.h>
|
|
],[
|
|
struct bio *bio __attribute__ ((unused)) = NULL;
|
|
bio_set_op_attrs(bio, 0, 0);
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO_REQ_OP_DISCARD], [
|
|
AC_MSG_CHECKING([whether REQ_OP_DISCARD is defined])
|
|
ZFS_LINUX_TEST_RESULT([req_op_discard], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_REQ_OP_DISCARD, 1, [REQ_OP_DISCARD is defined])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO_REQ_OP_SECURE_ERASE], [
|
|
AC_MSG_CHECKING([whether REQ_OP_SECURE_ERASE is defined])
|
|
ZFS_LINUX_TEST_RESULT([req_op_secure_erase], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_REQ_OP_SECURE_ERASE, 1,
|
|
[REQ_OP_SECURE_ERASE is defined])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO_REQ_OP_FLUSH], [
|
|
AC_MSG_CHECKING([whether REQ_OP_FLUSH is defined])
|
|
ZFS_LINUX_TEST_RESULT([req_op_flush], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_REQ_OP_FLUSH, 1, [REQ_OP_FLUSH is defined])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO_BI_OPF], [
|
|
AC_MSG_CHECKING([whether bio->bi_opf is defined])
|
|
ZFS_LINUX_TEST_RESULT([bio_bi_opf], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_BIO_BI_OPF, 1, [bio->bi_opf is defined])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO_SET_OP_ATTRS], [
|
|
AC_MSG_CHECKING([whether bio_set_op_attrs is available])
|
|
ZFS_LINUX_TEST_RESULT([bio_set_op_attrs], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_BIO_SET_OP_ATTRS, 1,
|
|
[bio_set_op_attrs is available])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # Linux 4.14 API,
|
|
dnl #
|
|
dnl # The bio_set_dev() helper macro was introduced as part of the transition
|
|
dnl # to have struct gendisk in struct bio.
|
|
dnl #
|
|
dnl # Linux 5.0 API,
|
|
dnl #
|
|
dnl # The bio_set_dev() helper macro was updated to internally depend on
|
|
dnl # bio_associate_blkg() symbol which is exported GPL-only.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_SET_DEV], [
|
|
ZFS_LINUX_TEST_SRC([bio_set_dev], [
|
|
#include <linux/bio.h>
|
|
#include <linux/fs.h>
|
|
],[
|
|
struct block_device *bdev = NULL;
|
|
struct bio *bio = NULL;
|
|
bio_set_dev(bio, bdev);
|
|
], [], [$ZFS_META_LICENSE])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO_SET_DEV], [
|
|
AC_MSG_CHECKING([whether bio_set_dev() is available])
|
|
ZFS_LINUX_TEST_RESULT([bio_set_dev], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_BIO_SET_DEV, 1, [bio_set_dev() is available])
|
|
|
|
AC_MSG_CHECKING([whether bio_set_dev() is GPL-only])
|
|
ZFS_LINUX_TEST_RESULT([bio_set_dev_license], [
|
|
AC_MSG_RESULT(no)
|
|
],[
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_BIO_SET_DEV_GPL_ONLY, 1,
|
|
[bio_set_dev() GPL-only])
|
|
])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # 4.3 API change
|
|
dnl # Error argument dropped from bio_endio in favor of newly introduced
|
|
dnl # bio->bi_error. This also replaces bio->bi_flags value BIO_UPTODATE.
|
|
dnl # Introduced by torvalds/linux@4246a0b63bd8f56a1469b12eafeb875b1041a451
|
|
dnl # ("block: add a bi_error field to struct bio").
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_END_IO_T_ARGS], [
|
|
ZFS_LINUX_TEST_SRC([bio_end_io_t_args], [
|
|
#include <linux/bio.h>
|
|
void wanted_end_io(struct bio *bio) { return; }
|
|
bio_end_io_t *end_io __attribute__ ((unused)) = wanted_end_io;
|
|
], [])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO_END_IO_T_ARGS], [
|
|
AC_MSG_CHECKING([whether bio_end_io_t wants 1 arg])
|
|
ZFS_LINUX_TEST_RESULT([bio_end_io_t_args], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_1ARG_BIO_END_IO_T, 1,
|
|
[bio_end_io_t wants 1 arg])
|
|
], [
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # 4.13 API change
|
|
dnl # The bio->bi_error field was replaced with bio->bi_status which is an
|
|
dnl # enum which describes all possible error types.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_BI_STATUS], [
|
|
ZFS_LINUX_TEST_SRC([bio_bi_status], [
|
|
#include <linux/bio.h>
|
|
], [
|
|
struct bio bio __attribute__ ((unused));
|
|
blk_status_t status __attribute__ ((unused)) = BLK_STS_OK;
|
|
bio.bi_status = status;
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO_BI_STATUS], [
|
|
AC_MSG_CHECKING([whether bio->bi_status exists])
|
|
ZFS_LINUX_TEST_RESULT([bio_bi_status], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_BIO_BI_STATUS, 1, [bio->bi_status exists])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # 3.14 API change,
|
|
dnl # Immutable biovecs. A number of fields of struct bio are moved to
|
|
dnl # struct bvec_iter.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_BVEC_ITER], [
|
|
ZFS_LINUX_TEST_SRC([bio_bvec_iter], [
|
|
#include <linux/bio.h>
|
|
],[
|
|
struct bio bio;
|
|
bio.bi_iter.bi_sector = 0;
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO_BVEC_ITER], [
|
|
AC_MSG_CHECKING([whether bio has bi_iter])
|
|
ZFS_LINUX_TEST_RESULT([bio_bvec_iter], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_BIO_BVEC_ITER, 1, [bio has bi_iter])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # 4.8 API change
|
|
dnl # The rw argument has been removed from submit_bio/submit_bio_wait.
|
|
dnl # Callers are now expected to set bio->bi_rw instead of passing it in.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_SUBMIT_BIO], [
|
|
ZFS_LINUX_TEST_SRC([submit_bio], [
|
|
#include <linux/bio.h>
|
|
],[
|
|
blk_qc_t blk_qc;
|
|
struct bio *bio = NULL;
|
|
blk_qc = submit_bio(bio);
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO_SUBMIT_BIO], [
|
|
AC_MSG_CHECKING([whether submit_bio() wants 1 arg])
|
|
ZFS_LINUX_TEST_RESULT([submit_bio], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_1ARG_SUBMIT_BIO, 1, [submit_bio() wants 1 arg])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # 2.6.34 API change
|
|
dnl # current->bio_list
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_CURRENT_BIO_LIST], [
|
|
ZFS_LINUX_TEST_SRC([current_bio_list], [
|
|
#include <linux/sched.h>
|
|
], [
|
|
current->bio_list = (struct bio_list *) NULL;
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO_CURRENT_BIO_LIST], [
|
|
AC_MSG_CHECKING([whether current->bio_list exists])
|
|
ZFS_LINUX_TEST_RESULT([current_bio_list], [
|
|
AC_MSG_RESULT(yes)
|
|
],[
|
|
ZFS_LINUX_TEST_ERROR([bio_list])
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # Linux 5.5 API,
|
|
dnl #
|
|
dnl # The Linux 5.5 kernel updated percpu_ref_tryget() which is inlined by
|
|
dnl # blkg_tryget() to use rcu_read_lock() instead of rcu_read_lock_sched().
|
|
dnl # As a side effect the function was converted to GPL-only.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKG_TRYGET], [
|
|
ZFS_LINUX_TEST_SRC([blkg_tryget], [
|
|
#include <linux/blk-cgroup.h>
|
|
#include <linux/bio.h>
|
|
#include <linux/fs.h>
|
|
],[
|
|
struct blkcg_gq blkg __attribute__ ((unused)) = {};
|
|
bool rc __attribute__ ((unused));
|
|
rc = blkg_tryget(&blkg);
|
|
], [], [$ZFS_META_LICENSE])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BLKG_TRYGET], [
|
|
AC_MSG_CHECKING([whether blkg_tryget() is available])
|
|
ZFS_LINUX_TEST_RESULT([blkg_tryget], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_BLKG_TRYGET, 1, [blkg_tryget() is available])
|
|
|
|
AC_MSG_CHECKING([whether blkg_tryget() is GPL-only])
|
|
ZFS_LINUX_TEST_RESULT([blkg_tryget_license], [
|
|
AC_MSG_RESULT(no)
|
|
],[
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_BLKG_TRYGET_GPL_ONLY, 1,
|
|
[blkg_tryget() GPL-only])
|
|
])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO], [
|
|
ZFS_AC_KERNEL_SRC_REQ
|
|
ZFS_AC_KERNEL_SRC_BIO_OPS
|
|
ZFS_AC_KERNEL_SRC_BIO_SET_DEV
|
|
ZFS_AC_KERNEL_SRC_BIO_END_IO_T_ARGS
|
|
ZFS_AC_KERNEL_SRC_BIO_BI_STATUS
|
|
ZFS_AC_KERNEL_SRC_BIO_BVEC_ITER
|
|
ZFS_AC_KERNEL_SRC_BIO_SUBMIT_BIO
|
|
ZFS_AC_KERNEL_SRC_BIO_CURRENT_BIO_LIST
|
|
ZFS_AC_KERNEL_SRC_BLKG_TRYGET
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO], [
|
|
ZFS_AC_KERNEL_BIO_REQ_FAILFAST_MASK
|
|
ZFS_AC_KERNEL_BIO_REQ_DISCARD
|
|
ZFS_AC_KERNEL_BIO_REQ_FLUSH
|
|
ZFS_AC_KERNEL_BIO_REQ_PREFLUSH
|
|
|
|
ZFS_AC_KERNEL_BIO_REQ_OP_DISCARD
|
|
ZFS_AC_KERNEL_BIO_REQ_OP_SECURE_ERASE
|
|
ZFS_AC_KERNEL_BIO_REQ_OP_FLUSH
|
|
ZFS_AC_KERNEL_BIO_BI_OPF
|
|
ZFS_AC_KERNEL_BIO_SET_OP_ATTRS
|
|
|
|
ZFS_AC_KERNEL_BIO_SET_DEV
|
|
ZFS_AC_KERNEL_BIO_END_IO_T_ARGS
|
|
ZFS_AC_KERNEL_BIO_BI_STATUS
|
|
ZFS_AC_KERNEL_BIO_BVEC_ITER
|
|
ZFS_AC_KERNEL_BIO_SUBMIT_BIO
|
|
ZFS_AC_KERNEL_BIO_CURRENT_BIO_LIST
|
|
ZFS_AC_KERNEL_BLKG_TRYGET
|
|
])
|