5b7bb98387
On RHEL 7.4, include/linux/bio.h now includes a macro for bio_set_op_attrs that conflicts with the ifndef in ZFS include/linux/blkdev_compat.h. This patch fixes the build. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov> Signed-off-by: Tony Hutter <hutter2@llnl.gov> Closes #6234 Closes #6271
85 lines
1.9 KiB
Plaintext
85 lines
1.9 KiB
Plaintext
dnl #
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dnl # Linux 4.8 API,
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dnl #
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dnl # The bio_op() helper was introduced as a replacement for explicitly
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dnl # checking the bio->bi_rw flags. The following checks are used to
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dnl # detect if a specific operation is supported.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_REQ_OP_DISCARD], [
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AC_MSG_CHECKING([whether REQ_OP_DISCARD is defined])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/blk_types.h>
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],[
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int op __attribute__ ((unused)) = REQ_OP_DISCARD;
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_REQ_OP_DISCARD, 1,
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[REQ_OP_DISCARD is defined])
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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_REQ_OP_SECURE_ERASE], [
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AC_MSG_CHECKING([whether REQ_OP_SECURE_ERASE is defined])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/blk_types.h>
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],[
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int op __attribute__ ((unused)) = REQ_OP_SECURE_ERASE;
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_REQ_OP_SECURE_ERASE, 1,
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[REQ_OP_SECURE_ERASE is defined])
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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_REQ_OP_FLUSH], [
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AC_MSG_CHECKING([whether REQ_OP_FLUSH is defined])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/blk_types.h>
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],[
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int op __attribute__ ((unused)) = REQ_OP_FLUSH;
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_REQ_OP_FLUSH, 1,
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[REQ_OP_FLUSH is defined])
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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_BIO_BI_OPF], [
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AC_MSG_CHECKING([whether bio->bi_opf is defined])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/bio.h>
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],[
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struct bio bio __attribute__ ((unused));
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bio.bi_opf = 0;
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BIO_BI_OPF, 1, [bio->bi_opf is defined])
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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_HAVE_BIO_SET_OP_ATTRS], [
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AC_MSG_CHECKING([whether bio_set_op_attrs is available])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/bio.h>
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],[
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struct bio *bio __attribute__ ((unused)) = NULL;
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bio_set_op_attrs(bio, 0, 0);
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BIO_SET_OP_ATTRS, 1,
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[bio_set_op_attrs 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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