mirror of https://github.com/openzfs/zfs.git
51 lines
1.1 KiB
Plaintext
51 lines
1.1 KiB
Plaintext
dnl #
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dnl # Preferred interface for flagging a synchronous bio:
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dnl # 2.6.12-2.6.29: BIO_RW_SYNC
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dnl # 2.6.30-2.6.35: BIO_RW_SYNCIO
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dnl # 2.6.36-2.6.xx: REQ_SYNC
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_BIO_RW_SYNC], [
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AC_MSG_CHECKING([whether BIO_RW_SYNC 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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int flags __attribute__ ((unused));
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flags = BIO_RW_SYNC;
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BIO_RW_SYNC, 1, [BIO_RW_SYNC 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_RW_SYNCIO], [
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AC_MSG_CHECKING([whether BIO_RW_SYNCIO 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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int flags __attribute__ ((unused));
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flags = BIO_RW_SYNCIO;
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BIO_RW_SYNCIO, 1, [BIO_RW_SYNCIO 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_SYNC], [
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AC_MSG_CHECKING([whether REQ_SYNC 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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int flags __attribute__ ((unused));
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flags = REQ_SYNC;
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_REQ_SYNC, 1, [REQ_SYNC 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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