2089 lines
56 KiB
Diff
2089 lines
56 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Brian Behlendorf <behlendorf1@llnl.gov>
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Date: Wed, 7 Feb 2018 11:50:24 -0800
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Subject: [PATCH] Split spl-build.m4
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Split the kernel interface configure checks in to seperate m4
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macro files. This is intended to facilitate moving the spl
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source code in to the zfs repository.
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Reviewed-by: Tony Hutter <hutter2@llnl.gov>
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Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
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Closes #682
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(cherry picked from commit 6902e2839f7efe32dab97980aa4b4c151bdb4f5e)
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Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
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---
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config/kernel-ctl-table-name.m4 | 18 +
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config/kernel-fallocate.m4 | 68 +++
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config/kernel-group-info.m4 | 21 +
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config/kernel-inode-lock.m4 | 23 +
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config/kernel-kmem-cache.m4 | 72 +++
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config/kernel-kuidgid.m4 | 28 +
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config/kernel-pde-data.m4 | 17 +
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config/kernel-rw.m4 | 57 +++
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config/kernel-rwsem.m4 | 75 +++
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config/kernel-sched.m4 | 56 ++
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config/kernel-set-fs-pwd.m4 | 39 ++
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config/kernel-shrinker.m4 | 125 +++++
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config/kernel-spinlock.m4 | 24 +
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config/kernel-timer.m4 | 32 ++
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config/kernel-trim-unused-symbols.m4 | 19 +
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config/kernel-truncate-range.m4 | 19 +
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config/kernel-urange-sleep.m4 | 21 +
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config/kernel-vfs-fsync.m4 | 17 +
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config/kernel-vfs-getattr.m4 | 62 +++
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config/kernel-wait.m4 | 76 +++
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config/kernel-zlib.m4 | 63 +++
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config/spl-build.m4 | 956 -----------------------------------
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22 files changed, 932 insertions(+), 956 deletions(-)
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create mode 100644 config/kernel-ctl-table-name.m4
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create mode 100644 config/kernel-fallocate.m4
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create mode 100644 config/kernel-group-info.m4
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create mode 100644 config/kernel-inode-lock.m4
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create mode 100644 config/kernel-kmem-cache.m4
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create mode 100644 config/kernel-kuidgid.m4
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create mode 100644 config/kernel-pde-data.m4
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create mode 100644 config/kernel-rw.m4
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create mode 100644 config/kernel-rwsem.m4
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create mode 100644 config/kernel-sched.m4
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create mode 100644 config/kernel-set-fs-pwd.m4
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create mode 100644 config/kernel-shrinker.m4
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create mode 100644 config/kernel-spinlock.m4
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create mode 100644 config/kernel-timer.m4
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create mode 100644 config/kernel-trim-unused-symbols.m4
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create mode 100644 config/kernel-truncate-range.m4
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create mode 100644 config/kernel-urange-sleep.m4
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create mode 100644 config/kernel-vfs-fsync.m4
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create mode 100644 config/kernel-vfs-getattr.m4
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create mode 100644 config/kernel-wait.m4
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create mode 100644 config/kernel-zlib.m4
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diff --git a/config/kernel-ctl-table-name.m4 b/config/kernel-ctl-table-name.m4
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new file mode 100644
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index 0000000..8dd2e77
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--- /dev/null
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+++ b/config/kernel-ctl-table-name.m4
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@@ -0,0 +1,18 @@
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+dnl #
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+dnl # 2.6.33 API change,
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+dnl # Removed .ctl_name from struct ctl_table.
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+dnl #
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+AC_DEFUN([SPL_AC_CTL_NAME], [
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+ AC_MSG_CHECKING([whether struct ctl_table has ctl_name])
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+ SPL_LINUX_TRY_COMPILE([
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+ #include <linux/sysctl.h>
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+ ],[
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+ struct ctl_table ctl __attribute__ ((unused));
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+ ctl.ctl_name = 0;
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+ ],[
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+ AC_MSG_RESULT(yes)
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+ AC_DEFINE(HAVE_CTL_NAME, 1, [struct ctl_table has ctl_name])
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+ ],[
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+ AC_MSG_RESULT(no)
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+ ])
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+])
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diff --git a/config/kernel-fallocate.m4 b/config/kernel-fallocate.m4
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new file mode 100644
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index 0000000..b8c82f4
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--- /dev/null
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+++ b/config/kernel-fallocate.m4
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@@ -0,0 +1,68 @@
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+dnl #
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+dnl # Linux 2.6.38 - 3.x API
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+dnl #
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+AC_DEFUN([SPL_AC_KERNEL_FILE_FALLOCATE], [
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+ AC_MSG_CHECKING([whether fops->fallocate() exists])
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+ SPL_LINUX_TRY_COMPILE([
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+ #include <linux/fs.h>
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+ ],[
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+ long (*fallocate) (struct file *, int, loff_t, loff_t) = NULL;
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+ struct file_operations fops __attribute__ ((unused)) = {
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+ .fallocate = fallocate,
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+ };
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+ ],[
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+ AC_MSG_RESULT(yes)
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+ AC_DEFINE(HAVE_FILE_FALLOCATE, 1, [fops->fallocate() 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 # Linux 2.6.x - 2.6.37 API
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+dnl #
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+AC_DEFUN([SPL_AC_KERNEL_INODE_FALLOCATE], [
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+ AC_MSG_CHECKING([whether iops->fallocate() exists])
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+ SPL_LINUX_TRY_COMPILE([
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+ #include <linux/fs.h>
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+ ],[
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+ long (*fallocate) (struct inode *, int, loff_t, loff_t) = NULL;
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+ struct inode_operations fops __attribute__ ((unused)) = {
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+ .fallocate = fallocate,
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+ };
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+ ],[
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+ AC_MSG_RESULT(yes)
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+ AC_DEFINE(HAVE_INODE_FALLOCATE, 1, [fops->fallocate() 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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+
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+dnl #
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+dnl # PaX Linux 2.6.38 - 3.x API
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+dnl #
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+AC_DEFUN([SPL_AC_PAX_KERNEL_FILE_FALLOCATE], [
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+ AC_MSG_CHECKING([whether fops->fallocate() exists])
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+ SPL_LINUX_TRY_COMPILE([
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+ #include <linux/fs.h>
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+ ],[
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+ long (*fallocate) (struct file *, int, loff_t, loff_t) = NULL;
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+ struct file_operations_no_const fops __attribute__ ((unused)) = {
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+ .fallocate = fallocate,
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+ };
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+ ],[
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+ AC_MSG_RESULT(yes)
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+ AC_DEFINE(HAVE_FILE_FALLOCATE, 1, [fops->fallocate() 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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+
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+dnl #
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+dnl # The fallocate callback was moved from the inode_operations
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+dnl # structure to the file_operations structure.
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+dnl #
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+AC_DEFUN([SPL_AC_KERNEL_FALLOCATE], [
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+ SPL_AC_KERNEL_FILE_FALLOCATE
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+ SPL_AC_KERNEL_INODE_FALLOCATE
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+ SPL_AC_PAX_KERNEL_FILE_FALLOCATE
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+])
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diff --git a/config/kernel-group-info.m4 b/config/kernel-group-info.m4
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new file mode 100644
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index 0000000..4db2bba
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--- /dev/null
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+++ b/config/kernel-group-info.m4
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@@ -0,0 +1,21 @@
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+dnl #
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+dnl # 4.9 API change
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+dnl # group_info changed from 2d array via >blocks to 1d array via ->gid
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+dnl #
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+AC_DEFUN([SPL_AC_GROUP_INFO_GID], [
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+ AC_MSG_CHECKING([whether group_info->gid exists])
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+ tmp_flags="$EXTRA_KCFLAGS"
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+ EXTRA_KCFLAGS="-Werror"
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+ SPL_LINUX_TRY_COMPILE([
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+ #include <linux/cred.h>
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+ ],[
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+ struct group_info *gi = groups_alloc(1);
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+ gi->gid[0] = KGIDT_INIT(0);
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+ ],[
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+ AC_MSG_RESULT(yes)
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+ AC_DEFINE(HAVE_GROUP_INFO_GID, 1, [group_info->gid exists])
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+ ],[
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+ AC_MSG_RESULT(no)
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+ ])
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+ EXTRA_KCFLAGS="$tmp_flags"
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+])
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diff --git a/config/kernel-inode-lock.m4 b/config/kernel-inode-lock.m4
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new file mode 100644
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index 0000000..2cc06a5
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--- /dev/null
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+++ b/config/kernel-inode-lock.m4
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@@ -0,0 +1,23 @@
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+dnl #
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+dnl # 4.7 API change
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+dnl # i_mutex is changed to i_rwsem. Instead of directly using
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+dnl # i_mutex/i_rwsem, we should use inode_lock() and inode_lock_shared()
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+dnl # We test inode_lock_shared because inode_lock is introduced earlier.
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+dnl #
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+AC_DEFUN([SPL_AC_INODE_LOCK], [
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+ AC_MSG_CHECKING([whether inode_lock_shared() exists])
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+ tmp_flags="$EXTRA_KCFLAGS"
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+ EXTRA_KCFLAGS="-Werror"
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+ SPL_LINUX_TRY_COMPILE([
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+ #include <linux/fs.h>
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+ ],[
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+ struct inode *inode = NULL;
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+ inode_lock_shared(inode);
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+ ],[
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+ AC_MSG_RESULT(yes)
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+ AC_DEFINE(HAVE_INODE_LOCK_SHARED, 1, [yes])
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+ ],[
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+ AC_MSG_RESULT(no)
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+ ])
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+ EXTRA_KCFLAGS="$tmp_flags"
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+])
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diff --git a/config/kernel-kmem-cache.m4 b/config/kernel-kmem-cache.m4
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new file mode 100644
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index 0000000..50a7fdb
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--- /dev/null
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+++ b/config/kernel-kmem-cache.m4
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@@ -0,0 +1,72 @@
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+dnl #
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+dnl # 2.6.35 API change,
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+dnl # The cachep->gfpflags member was renamed cachep->allocflags. These are
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+dnl # private allocation flags which are applied when allocating a new slab
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+dnl # in kmem_getpages(). Unfortunately there is no public API for setting
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+dnl # non-default flags.
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+dnl #
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+AC_DEFUN([SPL_AC_KMEM_CACHE_ALLOCFLAGS], [
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+ AC_MSG_CHECKING([whether struct kmem_cache has allocflags])
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+ SPL_LINUX_TRY_COMPILE([
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+ #include <linux/slab.h>
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+ ],[
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+ struct kmem_cache cachep __attribute__ ((unused));
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+ cachep.allocflags = GFP_KERNEL;
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+ ],[
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+ AC_MSG_RESULT(yes)
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+ AC_DEFINE(HAVE_KMEM_CACHE_ALLOCFLAGS, 1,
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+ [struct kmem_cache has allocflags])
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+ ],[
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+ AC_MSG_RESULT(no)
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+
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+ AC_MSG_CHECKING([whether struct kmem_cache has gfpflags])
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+ SPL_LINUX_TRY_COMPILE([
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+ #include <linux/slab.h>
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+ ],[
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+ struct kmem_cache cachep __attribute__ ((unused));
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+ cachep.gfpflags = GFP_KERNEL;
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+ ],[
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+ AC_MSG_RESULT(yes)
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+ AC_DEFINE(HAVE_KMEM_CACHE_GFPFLAGS, 1,
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+ [struct kmem_cache has gfpflags])
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+ ],[
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+ AC_MSG_RESULT(no)
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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 # grsecurity API change,
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+dnl # kmem_cache_create() with SLAB_USERCOPY flag replaced by
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+dnl # kmem_cache_create_usercopy().
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+dnl #
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+AC_DEFUN([SPL_AC_KMEM_CACHE_CREATE_USERCOPY], [
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+ AC_MSG_CHECKING([whether kmem_cache_create_usercopy() exists])
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+ tmp_flags="$EXTRA_KCFLAGS"
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+ EXTRA_KCFLAGS="-Werror"
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+ SPL_LINUX_TRY_COMPILE([
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+ #include <linux/slab.h>
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+ static void ctor(void *foo)
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+ {
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+ // fake ctor
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+ }
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+ ],[
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+ struct kmem_cache *skc_linux_cache;
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+ const char *name = "test";
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+ size_t size = 4096;
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+ size_t align = 8;
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+ unsigned long flags = 0;
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+ size_t useroffset = 0;
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+ size_t usersize = size - useroffset;
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+
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+ skc_linux_cache = kmem_cache_create_usercopy(
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+ name, size, align, flags, useroffset, usersize, ctor);
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+ ],[
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+ AC_MSG_RESULT(yes)
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+ AC_DEFINE(HAVE_KMEM_CACHE_CREATE_USERCOPY, 1,
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+ [kmem_cache_create_usercopy() exists])
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+ ],[
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+ AC_MSG_RESULT(no)
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+ ])
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+ EXTRA_KCFLAGS="$tmp_flags"
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+])
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diff --git a/config/kernel-kuidgid.m4 b/config/kernel-kuidgid.m4
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new file mode 100644
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index 0000000..47d1937
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--- /dev/null
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+++ b/config/kernel-kuidgid.m4
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@@ -0,0 +1,28 @@
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+dnl #
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+dnl # User namespaces, use kuid_t in place of uid_t
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+dnl # where available. Not strictly a user namespaces thing
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+dnl # but it should prevent surprises
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+dnl #
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+AC_DEFUN([SPL_AC_KUIDGID_T], [
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+ AC_MSG_CHECKING([whether kuid_t/kgid_t is available])
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+ SPL_LINUX_TRY_COMPILE([
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+ #include <linux/uidgid.h>
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+ ], [
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+ kuid_t userid = KUIDT_INIT(0);
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+ kgid_t groupid = KGIDT_INIT(0);
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+ ],[
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+ SPL_LINUX_TRY_COMPILE([
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+ #include <linux/uidgid.h>
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+ ], [
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+ kuid_t userid = 0;
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+ kgid_t groupid = 0;
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+ ],[
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+ AC_MSG_RESULT(yes; optional)
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+ ],[
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+ AC_MSG_RESULT(yes; mandatory)
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+ AC_DEFINE(HAVE_KUIDGID_T, 1, [kuid_t/kgid_t in use])
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+ ])
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+ ],[
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+ AC_MSG_RESULT(no)
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+ ])
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+])
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diff --git a/config/kernel-pde-data.m4 b/config/kernel-pde-data.m4
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new file mode 100644
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index 0000000..6aa5765
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--- /dev/null
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+++ b/config/kernel-pde-data.m4
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@@ -0,0 +1,17 @@
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+dnl #
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+dnl # 3.10 API change,
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+dnl # PDE is replaced by PDE_DATA
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+dnl #
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+AC_DEFUN([SPL_AC_PDE_DATA], [
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+ AC_MSG_CHECKING([whether PDE_DATA() is available])
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+ SPL_LINUX_TRY_COMPILE_SYMBOL([
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+ #include <linux/proc_fs.h>
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+ ], [
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+ PDE_DATA(NULL);
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+ ], [PDE_DATA], [], [
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+ AC_MSG_RESULT(yes)
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+ AC_DEFINE(HAVE_PDE_DATA, 1, [yes])
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+ ],[
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+ AC_MSG_RESULT(no)
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+ ])
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+])
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diff --git a/config/kernel-rw.m4 b/config/kernel-rw.m4
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new file mode 100644
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index 0000000..23c14b7
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--- /dev/null
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+++ b/config/kernel-rw.m4
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@@ -0,0 +1,57 @@
|
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+dnl #
|
|
+dnl # 4.14 API change
|
|
+dnl # kernel_write() which was introduced in 3.9 was updated to take
|
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+dnl # the offset as a pointer which is needed by vn_rdwr().
|
|
+dnl #
|
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+AC_DEFUN([SPL_AC_KERNEL_WRITE], [
|
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+ AC_MSG_CHECKING([whether kernel_write() takes loff_t pointer])
|
|
+ tmp_flags="$EXTRA_KCFLAGS"
|
|
+ EXTRA_KCFLAGS="-Werror"
|
|
+ SPL_LINUX_TRY_COMPILE([
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|
+ #include <linux/fs.h>
|
|
+ ],[
|
|
+ struct file *file = NULL;
|
|
+ const void *buf = NULL;
|
|
+ size_t count = 0;
|
|
+ loff_t *pos = NULL;
|
|
+ ssize_t ret;
|
|
+
|
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+ ret = kernel_write(file, buf, count, pos);
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
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+ AC_DEFINE(HAVE_KERNEL_WRITE_PPOS, 1,
|
|
+ [kernel_write() take loff_t pointer])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+ EXTRA_KCFLAGS="$tmp_flags"
|
|
+])
|
|
+
|
|
+dnl #
|
|
+dnl # 4.14 API change
|
|
+dnl # kernel_read() which has existed for forever was updated to take
|
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+dnl # the offset as a pointer which is needed by vn_rdwr().
|
|
+dnl #
|
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+AC_DEFUN([SPL_AC_KERNEL_READ], [
|
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+ AC_MSG_CHECKING([whether kernel_read() takes loff_t pointer])
|
|
+ tmp_flags="$EXTRA_KCFLAGS"
|
|
+ EXTRA_KCFLAGS="-Werror"
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/fs.h>
|
|
+ ],[
|
|
+ struct file *file = NULL;
|
|
+ void *buf = NULL;
|
|
+ size_t count = 0;
|
|
+ loff_t *pos = NULL;
|
|
+ ssize_t ret;
|
|
+
|
|
+ ret = kernel_read(file, buf, count, pos);
|
|
+ ],[
|
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+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_KERNEL_READ_PPOS, 1,
|
|
+ [kernel_read() take loff_t pointer])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
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+ EXTRA_KCFLAGS="$tmp_flags"
|
|
+])
|
|
diff --git a/config/kernel-rwsem.m4 b/config/kernel-rwsem.m4
|
|
new file mode 100644
|
|
index 0000000..aee20ae
|
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--- /dev/null
|
|
+++ b/config/kernel-rwsem.m4
|
|
@@ -0,0 +1,75 @@
|
|
+dnl #
|
|
+dnl # 3.1 API Change
|
|
+dnl #
|
|
+dnl # The rw_semaphore.wait_lock member was changed from spinlock_t to
|
|
+dnl # raw_spinlock_t at commit ddb6c9b58a19edcfac93ac670b066c836ff729f1.
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_RWSEM_SPINLOCK_IS_RAW], [
|
|
+ AC_MSG_CHECKING([whether struct rw_semaphore member wait_lock is raw])
|
|
+ tmp_flags="$EXTRA_KCFLAGS"
|
|
+ EXTRA_KCFLAGS="-Werror"
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/rwsem.h>
|
|
+ ],[
|
|
+ struct rw_semaphore dummy_semaphore __attribute__ ((unused));
|
|
+ raw_spinlock_t dummy_lock __attribute__ ((unused)) =
|
|
+ __RAW_SPIN_LOCK_INITIALIZER(dummy_lock);
|
|
+ dummy_semaphore.wait_lock = dummy_lock;
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(RWSEM_SPINLOCK_IS_RAW, 1,
|
|
+ [struct rw_semaphore member wait_lock is raw_spinlock_t])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+ EXTRA_KCFLAGS="$tmp_flags"
|
|
+])
|
|
+
|
|
+dnl #
|
|
+dnl # 3.16 API Change
|
|
+dnl #
|
|
+dnl # rwsem-spinlock "->activity" changed to "->count"
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_RWSEM_ACTIVITY], [
|
|
+ AC_MSG_CHECKING([whether struct rw_semaphore has member activity])
|
|
+ tmp_flags="$EXTRA_KCFLAGS"
|
|
+ EXTRA_KCFLAGS="-Werror"
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/rwsem.h>
|
|
+ ],[
|
|
+ struct rw_semaphore dummy_semaphore __attribute__ ((unused));
|
|
+ dummy_semaphore.activity = 0;
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_RWSEM_ACTIVITY, 1,
|
|
+ [struct rw_semaphore has member activity])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+ EXTRA_KCFLAGS="$tmp_flags"
|
|
+])
|
|
+
|
|
+dnl #
|
|
+dnl # 4.8 API Change
|
|
+dnl #
|
|
+dnl # rwsem "->count" changed to atomic_long_t type
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_RWSEM_ATOMIC_LONG_COUNT], [
|
|
+ AC_MSG_CHECKING(
|
|
+ [whether struct rw_semaphore has atomic_long_t member count])
|
|
+ tmp_flags="$EXTRA_KCFLAGS"
|
|
+ EXTRA_KCFLAGS="-Werror"
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/rwsem.h>
|
|
+ ],[
|
|
+ DECLARE_RWSEM(dummy_semaphore);
|
|
+ (void) atomic_long_read(&dummy_semaphore.count);
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_RWSEM_ATOMIC_LONG_COUNT, 1,
|
|
+ [struct rw_semaphore has atomic_long_t member count])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+ EXTRA_KCFLAGS="$tmp_flags"
|
|
+])
|
|
diff --git a/config/kernel-sched.m4 b/config/kernel-sched.m4
|
|
new file mode 100644
|
|
index 0000000..5ae2167
|
|
--- /dev/null
|
|
+++ b/config/kernel-sched.m4
|
|
@@ -0,0 +1,56 @@
|
|
+dnl #
|
|
+dnl # 3.9 API change,
|
|
+dnl # Moved things from linux/sched.h to linux/sched/rt.h
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_SCHED_RT_HEADER],
|
|
+ [AC_MSG_CHECKING([whether header linux/sched/rt.h exists])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/sched.h>
|
|
+ #include <linux/sched/rt.h>
|
|
+ ],[
|
|
+ return 0;
|
|
+ ],[
|
|
+ AC_DEFINE(HAVE_SCHED_RT_HEADER, 1, [linux/sched/rt.h exists])
|
|
+ AC_MSG_RESULT(yes)
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+])
|
|
+
|
|
+dnl #
|
|
+dnl # 4.11 API change,
|
|
+dnl # Moved things from linux/sched.h to linux/sched/signal.h
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_SCHED_SIGNAL_HEADER],
|
|
+ [AC_MSG_CHECKING([whether header linux/sched/signal.h exists])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/sched.h>
|
|
+ #include <linux/sched/signal.h>
|
|
+ ],[
|
|
+ return 0;
|
|
+ ],[
|
|
+ AC_DEFINE(HAVE_SCHED_SIGNAL_HEADER, 1, [linux/sched/signal.h exists])
|
|
+ AC_MSG_RESULT(yes)
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+])
|
|
+dnl #
|
|
+dnl # 3.19 API change
|
|
+dnl # The io_schedule_timeout() function is present in all 2.6.32 kernels
|
|
+dnl # but it was not exported until Linux 3.19. The RHEL 7.x kernels which
|
|
+dnl # are based on a 3.10 kernel do export this symbol.
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_IO_SCHEDULE_TIMEOUT], [
|
|
+ AC_MSG_CHECKING([whether io_schedule_timeout() is available])
|
|
+ SPL_LINUX_TRY_COMPILE_SYMBOL([
|
|
+ #include <linux/sched.h>
|
|
+ ], [
|
|
+ (void) io_schedule_timeout(1);
|
|
+ ], [io_schedule_timeout], [], [
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_IO_SCHEDULE_TIMEOUT, 1, [yes])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+])
|
|
diff --git a/config/kernel-set-fs-pwd.m4 b/config/kernel-set-fs-pwd.m4
|
|
new file mode 100644
|
|
index 0000000..849e7e6
|
|
--- /dev/null
|
|
+++ b/config/kernel-set-fs-pwd.m4
|
|
@@ -0,0 +1,39 @@
|
|
+dnl #
|
|
+dnl # 3.9 API change
|
|
+dnl # set_fs_pwd takes const struct path *
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_SET_FS_PWD_WITH_CONST],
|
|
+ tmp_flags="$EXTRA_KCFLAGS"
|
|
+ EXTRA_KCFLAGS="-Werror"
|
|
+ [AC_MSG_CHECKING([whether set_fs_pwd() requires const struct path *])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/spinlock.h>
|
|
+ #include <linux/fs_struct.h>
|
|
+ #include <linux/path.h>
|
|
+ void (*const set_fs_pwd_func)
|
|
+ (struct fs_struct *, const struct path *)
|
|
+ = set_fs_pwd;
|
|
+ ],[
|
|
+ return 0;
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_SET_FS_PWD_WITH_CONST, 1,
|
|
+ [set_fs_pwd() needs const path *])
|
|
+ ],[
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/spinlock.h>
|
|
+ #include <linux/fs_struct.h>
|
|
+ #include <linux/path.h>
|
|
+ void (*const set_fs_pwd_func)
|
|
+ (struct fs_struct *, struct path *)
|
|
+ = set_fs_pwd;
|
|
+ ],[
|
|
+ return 0;
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ],[
|
|
+ AC_MSG_ERROR(unknown)
|
|
+ ])
|
|
+ ])
|
|
+ EXTRA_KCFLAGS="$tmp_flags"
|
|
+])
|
|
diff --git a/config/kernel-shrinker.m4 b/config/kernel-shrinker.m4
|
|
new file mode 100644
|
|
index 0000000..6fc9b54
|
|
--- /dev/null
|
|
+++ b/config/kernel-shrinker.m4
|
|
@@ -0,0 +1,125 @@
|
|
+AC_DEFUN([SPL_AC_SHRINKER_CALLBACK],[
|
|
+ tmp_flags="$EXTRA_KCFLAGS"
|
|
+ EXTRA_KCFLAGS="-Werror"
|
|
+ dnl #
|
|
+ dnl # 2.6.23 to 2.6.34 API change
|
|
+ dnl # ->shrink(int nr_to_scan, gfp_t gfp_mask)
|
|
+ dnl #
|
|
+ AC_MSG_CHECKING([whether old 2-argument shrinker exists])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/mm.h>
|
|
+
|
|
+ int shrinker_cb(int nr_to_scan, gfp_t gfp_mask);
|
|
+ ],[
|
|
+ struct shrinker cache_shrinker = {
|
|
+ .shrink = shrinker_cb,
|
|
+ .seeks = DEFAULT_SEEKS,
|
|
+ };
|
|
+ register_shrinker(&cache_shrinker);
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_2ARGS_OLD_SHRINKER_CALLBACK, 1,
|
|
+ [old shrinker callback wants 2 args])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ dnl #
|
|
+ dnl # 2.6.35 - 2.6.39 API change
|
|
+ dnl # ->shrink(struct shrinker *,
|
|
+ dnl # int nr_to_scan, gfp_t gfp_mask)
|
|
+ dnl #
|
|
+ AC_MSG_CHECKING([whether old 3-argument shrinker exists])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/mm.h>
|
|
+
|
|
+ int shrinker_cb(struct shrinker *, int nr_to_scan,
|
|
+ gfp_t gfp_mask);
|
|
+ ],[
|
|
+ struct shrinker cache_shrinker = {
|
|
+ .shrink = shrinker_cb,
|
|
+ .seeks = DEFAULT_SEEKS,
|
|
+ };
|
|
+ register_shrinker(&cache_shrinker);
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_3ARGS_SHRINKER_CALLBACK, 1,
|
|
+ [old shrinker callback wants 3 args])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ dnl #
|
|
+ dnl # 3.0 - 3.11 API change
|
|
+ dnl # ->shrink(struct shrinker *,
|
|
+ dnl # struct shrink_control *sc)
|
|
+ dnl #
|
|
+ AC_MSG_CHECKING(
|
|
+ [whether new 2-argument shrinker exists])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/mm.h>
|
|
+
|
|
+ int shrinker_cb(struct shrinker *,
|
|
+ struct shrink_control *sc);
|
|
+ ],[
|
|
+ struct shrinker cache_shrinker = {
|
|
+ .shrink = shrinker_cb,
|
|
+ .seeks = DEFAULT_SEEKS,
|
|
+ };
|
|
+ register_shrinker(&cache_shrinker);
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_2ARGS_NEW_SHRINKER_CALLBACK, 1,
|
|
+ [new shrinker callback wants 2 args])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ dnl #
|
|
+ dnl # 3.12 API change,
|
|
+ dnl # ->shrink() is logically split in to
|
|
+ dnl # ->count_objects() and ->scan_objects()
|
|
+ dnl #
|
|
+ AC_MSG_CHECKING(
|
|
+ [whether ->count_objects callback exists])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/mm.h>
|
|
+
|
|
+ unsigned long shrinker_cb(
|
|
+ struct shrinker *,
|
|
+ struct shrink_control *sc);
|
|
+ ],[
|
|
+ struct shrinker cache_shrinker = {
|
|
+ .count_objects = shrinker_cb,
|
|
+ .scan_objects = shrinker_cb,
|
|
+ .seeks = DEFAULT_SEEKS,
|
|
+ };
|
|
+ register_shrinker(&cache_shrinker);
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_SPLIT_SHRINKER_CALLBACK,
|
|
+ 1, [->count_objects exists])
|
|
+ ],[
|
|
+ AC_MSG_ERROR(error)
|
|
+ ])
|
|
+ ])
|
|
+ ])
|
|
+ ])
|
|
+ EXTRA_KCFLAGS="$tmp_flags"
|
|
+])
|
|
+
|
|
+dnl #
|
|
+dnl # 2.6.39 API change,
|
|
+dnl # Shrinker adjust to use common shrink_control structure.
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_SHRINK_CONTROL_STRUCT], [
|
|
+ AC_MSG_CHECKING([whether struct shrink_control exists])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/mm.h>
|
|
+ ],[
|
|
+ struct shrink_control sc __attribute__ ((unused));
|
|
+
|
|
+ sc.nr_to_scan = 0;
|
|
+ sc.gfp_mask = GFP_KERNEL;
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_SHRINK_CONTROL_STRUCT, 1,
|
|
+ [struct shrink_control exists])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+])
|
|
diff --git a/config/kernel-spinlock.m4 b/config/kernel-spinlock.m4
|
|
new file mode 100644
|
|
index 0000000..136262d
|
|
--- /dev/null
|
|
+++ b/config/kernel-spinlock.m4
|
|
@@ -0,0 +1,24 @@
|
|
+dnl #
|
|
+dnl # 2.6.36 API change,
|
|
+dnl # The 'struct fs_struct->lock' was changed from a rwlock_t to
|
|
+dnl # a spinlock_t to improve the fastpath performance.
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_FS_STRUCT_SPINLOCK], [
|
|
+ AC_MSG_CHECKING([whether struct fs_struct uses spinlock_t])
|
|
+ tmp_flags="$EXTRA_KCFLAGS"
|
|
+ EXTRA_KCFLAGS="-Werror"
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/sched.h>
|
|
+ #include <linux/fs_struct.h>
|
|
+ ],[
|
|
+ static struct fs_struct fs;
|
|
+ spin_lock_init(&fs.lock);
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_FS_STRUCT_SPINLOCK, 1,
|
|
+ [struct fs_struct uses spinlock_t])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+ EXTRA_KCFLAGS="$tmp_flags"
|
|
+])
|
|
diff --git a/config/kernel-timer.m4 b/config/kernel-timer.m4
|
|
new file mode 100644
|
|
index 0000000..93b5158
|
|
--- /dev/null
|
|
+++ b/config/kernel-timer.m4
|
|
@@ -0,0 +1,32 @@
|
|
+dnl #
|
|
+dnl # 4.15 API change
|
|
+dnl # https://lkml.org/lkml/2017/11/25/90
|
|
+dnl # Check if timer_list.func get passed a timer_list or an unsigned long
|
|
+dnl # (older kernels). Also sanity check the from_timer() and timer_setup()
|
|
+dnl # macros are available as well, since they will be used in the same newer
|
|
+dnl # kernels that support the new timer_list.func signature.
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_KERNEL_TIMER_FUNCTION_TIMER_LIST], [
|
|
+ AC_MSG_CHECKING([whether timer_list.function gets a timer_list])
|
|
+ tmp_flags="$EXTRA_KCFLAGS"
|
|
+ EXTRA_KCFLAGS="-Werror"
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/timer.h>
|
|
+ void task_expire(struct timer_list *tl) {}
|
|
+ ],[
|
|
+ #ifndef from_timer
|
|
+ #error "No from_timer() macro"
|
|
+ #endif
|
|
+
|
|
+ struct timer_list timer;
|
|
+ timer.function = task_expire;
|
|
+ timer_setup(&timer, NULL, 0);
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_KERNEL_TIMER_FUNCTION_TIMER_LIST, 1,
|
|
+ [timer_list.function gets a timer_list])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+ EXTRA_KCFLAGS="$tmp_flags"
|
|
+])
|
|
diff --git a/config/kernel-trim-unused-symbols.m4 b/config/kernel-trim-unused-symbols.m4
|
|
new file mode 100644
|
|
index 0000000..d1ac2f3
|
|
--- /dev/null
|
|
+++ b/config/kernel-trim-unused-symbols.m4
|
|
@@ -0,0 +1,19 @@
|
|
+dnl #
|
|
+dnl # config trim unused symbols,
|
|
+dnl # Verify the kernel has CONFIG_TRIM_UNUSED_KSYMS DISABLED.
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_CONFIG_TRIM_UNUSED_KSYMS], [
|
|
+ AC_MSG_CHECKING([whether CONFIG_TRIM_UNUSED_KSYM is disabled])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #if defined(CONFIG_TRIM_UNUSED_KSYMS)
|
|
+ #error CONFIG_TRIM_UNUSED_KSYMS not defined
|
|
+ #endif
|
|
+ ],[ ],[
|
|
+ AC_MSG_RESULT([yes])
|
|
+ ],[
|
|
+ AC_MSG_RESULT([no])
|
|
+ AC_MSG_ERROR([
|
|
+ *** This kernel has unused symbols trimming enabled, please disable.
|
|
+ *** Rebuild the kernel with CONFIG_TRIM_UNUSED_KSYMS=n set.])
|
|
+ ])
|
|
+])
|
|
diff --git a/config/kernel-truncate-range.m4 b/config/kernel-truncate-range.m4
|
|
new file mode 100644
|
|
index 0000000..4b1600b
|
|
--- /dev/null
|
|
+++ b/config/kernel-truncate-range.m4
|
|
@@ -0,0 +1,19 @@
|
|
+dnl #
|
|
+dnl # 3.5 API change,
|
|
+dnl # inode_operations.truncate_range removed
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_INODE_TRUNCATE_RANGE], [
|
|
+ AC_MSG_CHECKING([whether truncate_range() inode operation is available])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/fs.h>
|
|
+ ],[
|
|
+ struct inode_operations ops;
|
|
+ ops.truncate_range = NULL;
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_INODE_TRUNCATE_RANGE, 1,
|
|
+ [truncate_range() inode operation is available])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+])
|
|
diff --git a/config/kernel-urange-sleep.m4 b/config/kernel-urange-sleep.m4
|
|
new file mode 100644
|
|
index 0000000..85beca6
|
|
--- /dev/null
|
|
+++ b/config/kernel-urange-sleep.m4
|
|
@@ -0,0 +1,21 @@
|
|
+dnl #
|
|
+dnl # 2.6.36 API compatibility.
|
|
+dnl # Added usleep_range timer.
|
|
+dnl # usleep_range is a finer precision implementation of msleep
|
|
+dnl # designed to be a drop-in replacement for udelay where a precise
|
|
+dnl # sleep / busy-wait is unnecessary.
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_USLEEP_RANGE], [
|
|
+ AC_MSG_CHECKING([whether usleep_range() is available])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/delay.h>
|
|
+ ],[
|
|
+ usleep_range(0, 0);
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_USLEEP_RANGE, 1,
|
|
+ [usleep_range is available])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+])
|
|
diff --git a/config/kernel-vfs-fsync.m4 b/config/kernel-vfs-fsync.m4
|
|
new file mode 100644
|
|
index 0000000..3c42bf1
|
|
--- /dev/null
|
|
+++ b/config/kernel-vfs-fsync.m4
|
|
@@ -0,0 +1,17 @@
|
|
+dnl #
|
|
+dnl # 2.6.35 API change,
|
|
+dnl # Unused 'struct dentry *' removed from vfs_fsync() prototype.
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_2ARGS_VFS_FSYNC], [
|
|
+ AC_MSG_CHECKING([whether vfs_fsync() wants 2 args])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/fs.h>
|
|
+ ],[
|
|
+ vfs_fsync(NULL, 0);
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_2ARGS_VFS_FSYNC, 1, [vfs_fsync() wants 2 args])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+])
|
|
diff --git a/config/kernel-vfs-getattr.m4 b/config/kernel-vfs-getattr.m4
|
|
new file mode 100644
|
|
index 0000000..7772cb5
|
|
--- /dev/null
|
|
+++ b/config/kernel-vfs-getattr.m4
|
|
@@ -0,0 +1,62 @@
|
|
+dnl #
|
|
+dnl # 4.11 API, a528d35e@torvalds/linux
|
|
+dnl # vfs_getattr(const struct path *p, struct kstat *s, u32 m, unsigned int f)
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_4ARGS_VFS_GETATTR], [
|
|
+ AC_MSG_CHECKING([whether vfs_getattr() wants 4 args])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/fs.h>
|
|
+ ],[
|
|
+ vfs_getattr((const struct path *)NULL,
|
|
+ (struct kstat *)NULL,
|
|
+ (u32)0,
|
|
+ (unsigned int)0);
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_4ARGS_VFS_GETATTR, 1,
|
|
+ [vfs_getattr wants 4 args])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+])
|
|
+
|
|
+dnl #
|
|
+dnl # 3.9 API
|
|
+dnl # vfs_getattr(struct path *p, struct kstat *s)
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_2ARGS_VFS_GETATTR], [
|
|
+ AC_MSG_CHECKING([whether vfs_getattr() wants 2 args])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/fs.h>
|
|
+ ],[
|
|
+ vfs_getattr((struct path *) NULL,
|
|
+ (struct kstat *)NULL);
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_2ARGS_VFS_GETATTR, 1,
|
|
+ [vfs_getattr wants 2 args])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+])
|
|
+
|
|
+dnl #
|
|
+dnl # <3.9 API
|
|
+dnl # vfs_getattr(struct vfsmount *v, struct dentry *d, struct kstat *k)
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_3ARGS_VFS_GETATTR], [
|
|
+ AC_MSG_CHECKING([whether vfs_getattr() wants 3 args])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/fs.h>
|
|
+ ],[
|
|
+ vfs_getattr((struct vfsmount *)NULL,
|
|
+ (struct dentry *)NULL,
|
|
+ (struct kstat *)NULL);
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_3ARGS_VFS_GETATTR, 1,
|
|
+ [vfs_getattr wants 3 args])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+])
|
|
diff --git a/config/kernel-wait.m4 b/config/kernel-wait.m4
|
|
new file mode 100644
|
|
index 0000000..5f718a1
|
|
--- /dev/null
|
|
+++ b/config/kernel-wait.m4
|
|
@@ -0,0 +1,76 @@
|
|
+dnl #
|
|
+dnl # 3.17 API change,
|
|
+dnl # wait_on_bit() no longer requires an action argument. The former
|
|
+dnl # "wait_on_bit" interface required an 'action' function to be provided
|
|
+dnl # which does the actual waiting. There were over 20 such functions in the
|
|
+dnl # kernel, many of them identical, though most cases can be satisfied by one
|
|
+dnl # of just two functions: one which uses io_schedule() and one which just
|
|
+dnl # uses schedule(). This API change was made to consolidate all of those
|
|
+dnl # redundant wait functions.
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_WAIT_ON_BIT], [
|
|
+ AC_MSG_CHECKING([whether wait_on_bit() takes an action])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/wait.h>
|
|
+ ],[
|
|
+ int (*action)(void *) = NULL;
|
|
+ wait_on_bit(NULL, 0, action, 0);
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_WAIT_ON_BIT_ACTION, 1, [yes])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+])
|
|
+dnl #
|
|
+dnl # 4.13 API change
|
|
+dnl # Renamed struct wait_queue -> struct wait_queue_entry.
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_WAIT_QUEUE_ENTRY_T], [
|
|
+ AC_MSG_CHECKING([whether wait_queue_entry_t exists])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/wait.h>
|
|
+ ],[
|
|
+ wait_queue_entry_t *entry __attribute__ ((unused));
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_WAIT_QUEUE_ENTRY_T, 1,
|
|
+ [wait_queue_entry_t exists])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+])
|
|
+
|
|
+dnl #
|
|
+dnl # 4.13 API change
|
|
+dnl # Renamed wait_queue_head::task_list -> wait_queue_head::head
|
|
+dnl # Renamed wait_queue_entry::task_list -> wait_queue_entry::entry
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_WAIT_QUEUE_HEAD_ENTRY], [
|
|
+ AC_MSG_CHECKING([whether wq_head->head and wq_entry->entry exist])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/wait.h>
|
|
+
|
|
+ #ifdef HAVE_WAIT_QUEUE_ENTRY_T
|
|
+ typedef wait_queue_head_t spl_wait_queue_head_t;
|
|
+ typedef wait_queue_entry_t spl_wait_queue_entry_t;
|
|
+ #else
|
|
+ typedef wait_queue_head_t spl_wait_queue_head_t;
|
|
+ typedef wait_queue_t spl_wait_queue_entry_t;
|
|
+ #endif
|
|
+ ],[
|
|
+ spl_wait_queue_head_t wq_head;
|
|
+ spl_wait_queue_entry_t wq_entry;
|
|
+ struct list_head *head __attribute__ ((unused));
|
|
+ struct list_head *entry __attribute__ ((unused));
|
|
+
|
|
+ head = &wq_head.head;
|
|
+ entry = &wq_entry.entry;
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_WAIT_QUEUE_HEAD_ENTRY, 1,
|
|
+ [wq_head->head and wq_entry->entry exist])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+])
|
|
diff --git a/config/kernel-zlib.m4 b/config/kernel-zlib.m4
|
|
new file mode 100644
|
|
index 0000000..bb23646
|
|
--- /dev/null
|
|
+++ b/config/kernel-zlib.m4
|
|
@@ -0,0 +1,63 @@
|
|
+dnl #
|
|
+dnl # zlib inflate compat,
|
|
+dnl # Verify the kernel has CONFIG_ZLIB_INFLATE support enabled.
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_CONFIG_ZLIB_INFLATE], [
|
|
+ AC_MSG_CHECKING([whether CONFIG_ZLIB_INFLATE is defined])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #if !defined(CONFIG_ZLIB_INFLATE) && \
|
|
+ !defined(CONFIG_ZLIB_INFLATE_MODULE)
|
|
+ #error CONFIG_ZLIB_INFLATE not defined
|
|
+ #endif
|
|
+ ],[ ],[
|
|
+ AC_MSG_RESULT([yes])
|
|
+ ],[
|
|
+ AC_MSG_RESULT([no])
|
|
+ AC_MSG_ERROR([
|
|
+ *** This kernel does not include the required zlib inflate support.
|
|
+ *** Rebuild the kernel with CONFIG_ZLIB_INFLATE=y|m set.])
|
|
+ ])
|
|
+])
|
|
+
|
|
+dnl #
|
|
+dnl # zlib deflate compat,
|
|
+dnl # Verify the kernel has CONFIG_ZLIB_DEFLATE support enabled.
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_CONFIG_ZLIB_DEFLATE], [
|
|
+ AC_MSG_CHECKING([whether CONFIG_ZLIB_DEFLATE is defined])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #if !defined(CONFIG_ZLIB_DEFLATE) && \
|
|
+ !defined(CONFIG_ZLIB_DEFLATE_MODULE)
|
|
+ #error CONFIG_ZLIB_DEFLATE not defined
|
|
+ #endif
|
|
+ ],[ ],[
|
|
+ AC_MSG_RESULT([yes])
|
|
+ ],[
|
|
+ AC_MSG_RESULT([no])
|
|
+ AC_MSG_ERROR([
|
|
+ *** This kernel does not include the required zlib deflate support.
|
|
+ *** Rebuild the kernel with CONFIG_ZLIB_DEFLATE=y|m set.])
|
|
+ ])
|
|
+])
|
|
+
|
|
+dnl #
|
|
+dnl # 2.6.39 API compat,
|
|
+dnl # The function zlib_deflate_workspacesize() now take 2 arguments.
|
|
+dnl # This was done to avoid always having to allocate the maximum size
|
|
+dnl # workspace (268K). The caller can now specific the windowBits and
|
|
+dnl # memLevel compression parameters to get a smaller workspace.
|
|
+dnl #
|
|
+AC_DEFUN([SPL_AC_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE],
|
|
+ [AC_MSG_CHECKING([whether zlib_deflate_workspacesize() wants 2 args])
|
|
+ SPL_LINUX_TRY_COMPILE([
|
|
+ #include <linux/zlib.h>
|
|
+ ],[
|
|
+ return zlib_deflate_workspacesize(MAX_WBITS, MAX_MEM_LEVEL);
|
|
+ ],[
|
|
+ AC_MSG_RESULT(yes)
|
|
+ AC_DEFINE(HAVE_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE, 1,
|
|
+ [zlib_deflate_workspacesize() wants 2 args])
|
|
+ ],[
|
|
+ AC_MSG_RESULT(no)
|
|
+ ])
|
|
+])
|
|
diff --git a/config/spl-build.m4 b/config/spl-build.m4
|
|
index afc8de6..553b5d5 100644
|
|
--- a/config/spl-build.m4
|
|
+++ b/config/spl-build.m4
|
|
@@ -753,959 +753,3 @@ AC_DEFUN([SPL_AC_ATOMIC_SPINLOCK], [
|
|
AC_MSG_CHECKING([whether kernel defines atomic64_t])
|
|
AC_MSG_RESULT([$have_atomic64_t])
|
|
])
|
|
-
|
|
-AC_DEFUN([SPL_AC_SHRINKER_CALLBACK],[
|
|
- tmp_flags="$EXTRA_KCFLAGS"
|
|
- EXTRA_KCFLAGS="-Werror"
|
|
- dnl #
|
|
- dnl # 2.6.23 to 2.6.34 API change
|
|
- dnl # ->shrink(int nr_to_scan, gfp_t gfp_mask)
|
|
- dnl #
|
|
- AC_MSG_CHECKING([whether old 2-argument shrinker exists])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/mm.h>
|
|
-
|
|
- int shrinker_cb(int nr_to_scan, gfp_t gfp_mask);
|
|
- ],[
|
|
- struct shrinker cache_shrinker = {
|
|
- .shrink = shrinker_cb,
|
|
- .seeks = DEFAULT_SEEKS,
|
|
- };
|
|
- register_shrinker(&cache_shrinker);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_2ARGS_OLD_SHRINKER_CALLBACK, 1,
|
|
- [old shrinker callback wants 2 args])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- dnl #
|
|
- dnl # 2.6.35 - 2.6.39 API change
|
|
- dnl # ->shrink(struct shrinker *,
|
|
- dnl # int nr_to_scan, gfp_t gfp_mask)
|
|
- dnl #
|
|
- AC_MSG_CHECKING([whether old 3-argument shrinker exists])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/mm.h>
|
|
-
|
|
- int shrinker_cb(struct shrinker *, int nr_to_scan,
|
|
- gfp_t gfp_mask);
|
|
- ],[
|
|
- struct shrinker cache_shrinker = {
|
|
- .shrink = shrinker_cb,
|
|
- .seeks = DEFAULT_SEEKS,
|
|
- };
|
|
- register_shrinker(&cache_shrinker);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_3ARGS_SHRINKER_CALLBACK, 1,
|
|
- [old shrinker callback wants 3 args])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- dnl #
|
|
- dnl # 3.0 - 3.11 API change
|
|
- dnl # ->shrink(struct shrinker *,
|
|
- dnl # struct shrink_control *sc)
|
|
- dnl #
|
|
- AC_MSG_CHECKING(
|
|
- [whether new 2-argument shrinker exists])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/mm.h>
|
|
-
|
|
- int shrinker_cb(struct shrinker *,
|
|
- struct shrink_control *sc);
|
|
- ],[
|
|
- struct shrinker cache_shrinker = {
|
|
- .shrink = shrinker_cb,
|
|
- .seeks = DEFAULT_SEEKS,
|
|
- };
|
|
- register_shrinker(&cache_shrinker);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_2ARGS_NEW_SHRINKER_CALLBACK, 1,
|
|
- [new shrinker callback wants 2 args])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- dnl #
|
|
- dnl # 3.12 API change,
|
|
- dnl # ->shrink() is logically split in to
|
|
- dnl # ->count_objects() and ->scan_objects()
|
|
- dnl #
|
|
- AC_MSG_CHECKING(
|
|
- [whether ->count_objects callback exists])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/mm.h>
|
|
-
|
|
- unsigned long shrinker_cb(
|
|
- struct shrinker *,
|
|
- struct shrink_control *sc);
|
|
- ],[
|
|
- struct shrinker cache_shrinker = {
|
|
- .count_objects = shrinker_cb,
|
|
- .scan_objects = shrinker_cb,
|
|
- .seeks = DEFAULT_SEEKS,
|
|
- };
|
|
- register_shrinker(&cache_shrinker);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_SPLIT_SHRINKER_CALLBACK,
|
|
- 1, [->count_objects exists])
|
|
- ],[
|
|
- AC_MSG_ERROR(error)
|
|
- ])
|
|
- ])
|
|
- ])
|
|
- ])
|
|
- EXTRA_KCFLAGS="$tmp_flags"
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 2.6.33 API change,
|
|
-dnl # Removed .ctl_name from struct ctl_table.
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_CTL_NAME], [
|
|
- AC_MSG_CHECKING([whether struct ctl_table has ctl_name])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/sysctl.h>
|
|
- ],[
|
|
- struct ctl_table ctl __attribute__ ((unused));
|
|
- ctl.ctl_name = 0;
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_CTL_NAME, 1, [struct ctl_table has ctl_name])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 3.10 API change,
|
|
-dnl # PDE is replaced by PDE_DATA
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_PDE_DATA], [
|
|
- AC_MSG_CHECKING([whether PDE_DATA() is available])
|
|
- SPL_LINUX_TRY_COMPILE_SYMBOL([
|
|
- #include <linux/proc_fs.h>
|
|
- ], [
|
|
- PDE_DATA(NULL);
|
|
- ], [PDE_DATA], [], [
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_PDE_DATA, 1, [yes])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 3.9 API change
|
|
-dnl # set_fs_pwd takes const struct path *
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_SET_FS_PWD_WITH_CONST],
|
|
- tmp_flags="$EXTRA_KCFLAGS"
|
|
- EXTRA_KCFLAGS="-Werror"
|
|
- [AC_MSG_CHECKING([whether set_fs_pwd() requires const struct path *])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/spinlock.h>
|
|
- #include <linux/fs_struct.h>
|
|
- #include <linux/path.h>
|
|
- void (*const set_fs_pwd_func)
|
|
- (struct fs_struct *, const struct path *)
|
|
- = set_fs_pwd;
|
|
- ],[
|
|
- return 0;
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_SET_FS_PWD_WITH_CONST, 1,
|
|
- [set_fs_pwd() needs const path *])
|
|
- ],[
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/spinlock.h>
|
|
- #include <linux/fs_struct.h>
|
|
- #include <linux/path.h>
|
|
- void (*const set_fs_pwd_func)
|
|
- (struct fs_struct *, struct path *)
|
|
- = set_fs_pwd;
|
|
- ],[
|
|
- return 0;
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ],[
|
|
- AC_MSG_ERROR(unknown)
|
|
- ])
|
|
- ])
|
|
- EXTRA_KCFLAGS="$tmp_flags"
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 2.6.36 API change,
|
|
-dnl # The 'struct fs_struct->lock' was changed from a rwlock_t to
|
|
-dnl # a spinlock_t to improve the fastpath performance.
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_FS_STRUCT_SPINLOCK], [
|
|
- AC_MSG_CHECKING([whether struct fs_struct uses spinlock_t])
|
|
- tmp_flags="$EXTRA_KCFLAGS"
|
|
- EXTRA_KCFLAGS="-Werror"
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/sched.h>
|
|
- #include <linux/fs_struct.h>
|
|
- ],[
|
|
- static struct fs_struct fs;
|
|
- spin_lock_init(&fs.lock);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_FS_STRUCT_SPINLOCK, 1,
|
|
- [struct fs_struct uses spinlock_t])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
- EXTRA_KCFLAGS="$tmp_flags"
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # User namespaces, use kuid_t in place of uid_t
|
|
-dnl # where available. Not strictly a user namespaces thing
|
|
-dnl # but it should prevent surprises
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_KUIDGID_T], [
|
|
- AC_MSG_CHECKING([whether kuid_t/kgid_t is available])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/uidgid.h>
|
|
- ], [
|
|
- kuid_t userid = KUIDT_INIT(0);
|
|
- kgid_t groupid = KGIDT_INIT(0);
|
|
- ],[
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/uidgid.h>
|
|
- ], [
|
|
- kuid_t userid = 0;
|
|
- kgid_t groupid = 0;
|
|
- ],[
|
|
- AC_MSG_RESULT(yes; optional)
|
|
- ],[
|
|
- AC_MSG_RESULT(yes; mandatory)
|
|
- AC_DEFINE(HAVE_KUIDGID_T, 1, [kuid_t/kgid_t in use])
|
|
- ])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 2.6.35 API change,
|
|
-dnl # Unused 'struct dentry *' removed from vfs_fsync() prototype.
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_2ARGS_VFS_FSYNC], [
|
|
- AC_MSG_CHECKING([whether vfs_fsync() wants 2 args])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/fs.h>
|
|
- ],[
|
|
- vfs_fsync(NULL, 0);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_2ARGS_VFS_FSYNC, 1, [vfs_fsync() wants 2 args])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 3.5 API change,
|
|
-dnl # inode_operations.truncate_range removed
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_INODE_TRUNCATE_RANGE], [
|
|
- AC_MSG_CHECKING([whether truncate_range() inode operation is available])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/fs.h>
|
|
- ],[
|
|
- struct inode_operations ops;
|
|
- ops.truncate_range = NULL;
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_INODE_TRUNCATE_RANGE, 1,
|
|
- [truncate_range() inode operation is available])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # Linux 2.6.38 - 3.x API
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_KERNEL_FILE_FALLOCATE], [
|
|
- AC_MSG_CHECKING([whether fops->fallocate() exists])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/fs.h>
|
|
- ],[
|
|
- long (*fallocate) (struct file *, int, loff_t, loff_t) = NULL;
|
|
- struct file_operations fops __attribute__ ((unused)) = {
|
|
- .fallocate = fallocate,
|
|
- };
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_FILE_FALLOCATE, 1, [fops->fallocate() exists])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # Linux 2.6.x - 2.6.37 API
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_KERNEL_INODE_FALLOCATE], [
|
|
- AC_MSG_CHECKING([whether iops->fallocate() exists])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/fs.h>
|
|
- ],[
|
|
- long (*fallocate) (struct inode *, int, loff_t, loff_t) = NULL;
|
|
- struct inode_operations fops __attribute__ ((unused)) = {
|
|
- .fallocate = fallocate,
|
|
- };
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_INODE_FALLOCATE, 1, [fops->fallocate() exists])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # PaX Linux 2.6.38 - 3.x API
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_PAX_KERNEL_FILE_FALLOCATE], [
|
|
- AC_MSG_CHECKING([whether fops->fallocate() exists])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/fs.h>
|
|
- ],[
|
|
- long (*fallocate) (struct file *, int, loff_t, loff_t) = NULL;
|
|
- struct file_operations_no_const fops __attribute__ ((unused)) = {
|
|
- .fallocate = fallocate,
|
|
- };
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_FILE_FALLOCATE, 1, [fops->fallocate() exists])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # The fallocate callback was moved from the inode_operations
|
|
-dnl # structure to the file_operations structure.
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_KERNEL_FALLOCATE], [
|
|
- SPL_AC_KERNEL_FILE_FALLOCATE
|
|
- SPL_AC_KERNEL_INODE_FALLOCATE
|
|
- SPL_AC_PAX_KERNEL_FILE_FALLOCATE
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # zlib inflate compat,
|
|
-dnl # Verify the kernel has CONFIG_ZLIB_INFLATE support enabled.
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_CONFIG_ZLIB_INFLATE], [
|
|
- AC_MSG_CHECKING([whether CONFIG_ZLIB_INFLATE is defined])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #if !defined(CONFIG_ZLIB_INFLATE) && \
|
|
- !defined(CONFIG_ZLIB_INFLATE_MODULE)
|
|
- #error CONFIG_ZLIB_INFLATE not defined
|
|
- #endif
|
|
- ],[ ],[
|
|
- AC_MSG_RESULT([yes])
|
|
- ],[
|
|
- AC_MSG_RESULT([no])
|
|
- AC_MSG_ERROR([
|
|
- *** This kernel does not include the required zlib inflate support.
|
|
- *** Rebuild the kernel with CONFIG_ZLIB_INFLATE=y|m set.])
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # zlib deflate compat,
|
|
-dnl # Verify the kernel has CONFIG_ZLIB_DEFLATE support enabled.
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_CONFIG_ZLIB_DEFLATE], [
|
|
- AC_MSG_CHECKING([whether CONFIG_ZLIB_DEFLATE is defined])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #if !defined(CONFIG_ZLIB_DEFLATE) && \
|
|
- !defined(CONFIG_ZLIB_DEFLATE_MODULE)
|
|
- #error CONFIG_ZLIB_DEFLATE not defined
|
|
- #endif
|
|
- ],[ ],[
|
|
- AC_MSG_RESULT([yes])
|
|
- ],[
|
|
- AC_MSG_RESULT([no])
|
|
- AC_MSG_ERROR([
|
|
- *** This kernel does not include the required zlib deflate support.
|
|
- *** Rebuild the kernel with CONFIG_ZLIB_DEFLATE=y|m set.])
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # config trim unused symbols,
|
|
-dnl # Verify the kernel has CONFIG_TRIM_UNUSED_KSYMS DISABLED.
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_CONFIG_TRIM_UNUSED_KSYMS], [
|
|
- AC_MSG_CHECKING([whether CONFIG_TRIM_UNUSED_KSYM is disabled])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #if defined(CONFIG_TRIM_UNUSED_KSYMS)
|
|
- #error CONFIG_TRIM_UNUSED_KSYMS not defined
|
|
- #endif
|
|
- ],[ ],[
|
|
- AC_MSG_RESULT([yes])
|
|
- ],[
|
|
- AC_MSG_RESULT([no])
|
|
- AC_MSG_ERROR([
|
|
- *** This kernel has unused symbols trimming enabled, please disable.
|
|
- *** Rebuild the kernel with CONFIG_TRIM_UNUSED_KSYMS=n set.])
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 2.6.39 API compat,
|
|
-dnl # The function zlib_deflate_workspacesize() now take 2 arguments.
|
|
-dnl # This was done to avoid always having to allocate the maximum size
|
|
-dnl # workspace (268K). The caller can now specific the windowBits and
|
|
-dnl # memLevel compression parameters to get a smaller workspace.
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE],
|
|
- [AC_MSG_CHECKING([whether zlib_deflate_workspacesize() wants 2 args])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/zlib.h>
|
|
- ],[
|
|
- return zlib_deflate_workspacesize(MAX_WBITS, MAX_MEM_LEVEL);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE, 1,
|
|
- [zlib_deflate_workspacesize() wants 2 args])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 2.6.39 API change,
|
|
-dnl # Shrinker adjust to use common shrink_control structure.
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_SHRINK_CONTROL_STRUCT], [
|
|
- AC_MSG_CHECKING([whether struct shrink_control exists])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/mm.h>
|
|
- ],[
|
|
- struct shrink_control sc __attribute__ ((unused));
|
|
-
|
|
- sc.nr_to_scan = 0;
|
|
- sc.gfp_mask = GFP_KERNEL;
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_SHRINK_CONTROL_STRUCT, 1,
|
|
- [struct shrink_control exists])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 3.1 API Change
|
|
-dnl #
|
|
-dnl # The rw_semaphore.wait_lock member was changed from spinlock_t to
|
|
-dnl # raw_spinlock_t at commit ddb6c9b58a19edcfac93ac670b066c836ff729f1.
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_RWSEM_SPINLOCK_IS_RAW], [
|
|
- AC_MSG_CHECKING([whether struct rw_semaphore member wait_lock is raw])
|
|
- tmp_flags="$EXTRA_KCFLAGS"
|
|
- EXTRA_KCFLAGS="-Werror"
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/rwsem.h>
|
|
- ],[
|
|
- struct rw_semaphore dummy_semaphore __attribute__ ((unused));
|
|
- raw_spinlock_t dummy_lock __attribute__ ((unused)) =
|
|
- __RAW_SPIN_LOCK_INITIALIZER(dummy_lock);
|
|
- dummy_semaphore.wait_lock = dummy_lock;
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(RWSEM_SPINLOCK_IS_RAW, 1,
|
|
- [struct rw_semaphore member wait_lock is raw_spinlock_t])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
- EXTRA_KCFLAGS="$tmp_flags"
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 3.16 API Change
|
|
-dnl #
|
|
-dnl # rwsem-spinlock "->activity" changed to "->count"
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_RWSEM_ACTIVITY], [
|
|
- AC_MSG_CHECKING([whether struct rw_semaphore has member activity])
|
|
- tmp_flags="$EXTRA_KCFLAGS"
|
|
- EXTRA_KCFLAGS="-Werror"
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/rwsem.h>
|
|
- ],[
|
|
- struct rw_semaphore dummy_semaphore __attribute__ ((unused));
|
|
- dummy_semaphore.activity = 0;
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_RWSEM_ACTIVITY, 1,
|
|
- [struct rw_semaphore has member activity])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
- EXTRA_KCFLAGS="$tmp_flags"
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 4.8 API Change
|
|
-dnl #
|
|
-dnl # rwsem "->count" changed to atomic_long_t type
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_RWSEM_ATOMIC_LONG_COUNT], [
|
|
- AC_MSG_CHECKING(
|
|
- [whether struct rw_semaphore has atomic_long_t member count])
|
|
- tmp_flags="$EXTRA_KCFLAGS"
|
|
- EXTRA_KCFLAGS="-Werror"
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/rwsem.h>
|
|
- ],[
|
|
- DECLARE_RWSEM(dummy_semaphore);
|
|
- (void) atomic_long_read(&dummy_semaphore.count);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_RWSEM_ATOMIC_LONG_COUNT, 1,
|
|
- [struct rw_semaphore has atomic_long_t member count])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
- EXTRA_KCFLAGS="$tmp_flags"
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 3.9 API change,
|
|
-dnl # Moved things from linux/sched.h to linux/sched/rt.h
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_SCHED_RT_HEADER],
|
|
- [AC_MSG_CHECKING([whether header linux/sched/rt.h exists])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/sched.h>
|
|
- #include <linux/sched/rt.h>
|
|
- ],[
|
|
- return 0;
|
|
- ],[
|
|
- AC_DEFINE(HAVE_SCHED_RT_HEADER, 1, [linux/sched/rt.h exists])
|
|
- AC_MSG_RESULT(yes)
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 4.11 API change,
|
|
-dnl # Moved things from linux/sched.h to linux/sched/signal.h
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_SCHED_SIGNAL_HEADER],
|
|
- [AC_MSG_CHECKING([whether header linux/sched/signal.h exists])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/sched.h>
|
|
- #include <linux/sched/signal.h>
|
|
- ],[
|
|
- return 0;
|
|
- ],[
|
|
- AC_DEFINE(HAVE_SCHED_SIGNAL_HEADER, 1, [linux/sched/signal.h exists])
|
|
- AC_MSG_RESULT(yes)
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 4.11 API, a528d35e@torvalds/linux
|
|
-dnl # vfs_getattr(const struct path *p, struct kstat *s, u32 m, unsigned int f)
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_4ARGS_VFS_GETATTR], [
|
|
- AC_MSG_CHECKING([whether vfs_getattr() wants 4 args])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/fs.h>
|
|
- ],[
|
|
- vfs_getattr((const struct path *)NULL,
|
|
- (struct kstat *)NULL,
|
|
- (u32)0,
|
|
- (unsigned int)0);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_4ARGS_VFS_GETATTR, 1,
|
|
- [vfs_getattr wants 4 args])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 3.9 API
|
|
-dnl # vfs_getattr(struct path *p, struct kstat *s)
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_2ARGS_VFS_GETATTR], [
|
|
- AC_MSG_CHECKING([whether vfs_getattr() wants 2 args])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/fs.h>
|
|
- ],[
|
|
- vfs_getattr((struct path *) NULL,
|
|
- (struct kstat *)NULL);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_2ARGS_VFS_GETATTR, 1,
|
|
- [vfs_getattr wants 2 args])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # <3.9 API
|
|
-dnl # vfs_getattr(struct vfsmount *v, struct dentry *d, struct kstat *k)
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_3ARGS_VFS_GETATTR], [
|
|
- AC_MSG_CHECKING([whether vfs_getattr() wants 3 args])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/fs.h>
|
|
- ],[
|
|
- vfs_getattr((struct vfsmount *)NULL,
|
|
- (struct dentry *)NULL,
|
|
- (struct kstat *)NULL);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_3ARGS_VFS_GETATTR, 1,
|
|
- [vfs_getattr wants 3 args])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 2.6.36 API compatibility.
|
|
-dnl # Added usleep_range timer.
|
|
-dnl # usleep_range is a finer precision implementation of msleep
|
|
-dnl # designed to be a drop-in replacement for udelay where a precise
|
|
-dnl # sleep / busy-wait is unnecessary.
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_USLEEP_RANGE], [
|
|
- AC_MSG_CHECKING([whether usleep_range() is available])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/delay.h>
|
|
- ],[
|
|
- usleep_range(0, 0);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_USLEEP_RANGE, 1,
|
|
- [usleep_range is available])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 2.6.35 API change,
|
|
-dnl # The cachep->gfpflags member was renamed cachep->allocflags. These are
|
|
-dnl # private allocation flags which are applied when allocating a new slab
|
|
-dnl # in kmem_getpages(). Unfortunately there is no public API for setting
|
|
-dnl # non-default flags.
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_KMEM_CACHE_ALLOCFLAGS], [
|
|
- AC_MSG_CHECKING([whether struct kmem_cache has allocflags])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/slab.h>
|
|
- ],[
|
|
- struct kmem_cache cachep __attribute__ ((unused));
|
|
- cachep.allocflags = GFP_KERNEL;
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_KMEM_CACHE_ALLOCFLAGS, 1,
|
|
- [struct kmem_cache has allocflags])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
-
|
|
- AC_MSG_CHECKING([whether struct kmem_cache has gfpflags])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/slab.h>
|
|
- ],[
|
|
- struct kmem_cache cachep __attribute__ ((unused));
|
|
- cachep.gfpflags = GFP_KERNEL;
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_KMEM_CACHE_GFPFLAGS, 1,
|
|
- [struct kmem_cache has gfpflags])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 3.17 API change,
|
|
-dnl # wait_on_bit() no longer requires an action argument. The former
|
|
-dnl # "wait_on_bit" interface required an 'action' function to be provided
|
|
-dnl # which does the actual waiting. There were over 20 such functions in the
|
|
-dnl # kernel, many of them identical, though most cases can be satisfied by one
|
|
-dnl # of just two functions: one which uses io_schedule() and one which just
|
|
-dnl # uses schedule(). This API change was made to consolidate all of those
|
|
-dnl # redundant wait functions.
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_WAIT_ON_BIT], [
|
|
- AC_MSG_CHECKING([whether wait_on_bit() takes an action])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/wait.h>
|
|
- ],[
|
|
- int (*action)(void *) = NULL;
|
|
- wait_on_bit(NULL, 0, action, 0);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_WAIT_ON_BIT_ACTION, 1, [yes])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 4.7 API change
|
|
-dnl # i_mutex is changed to i_rwsem. Instead of directly using
|
|
-dnl # i_mutex/i_rwsem, we should use inode_lock() and inode_lock_shared()
|
|
-dnl # We test inode_lock_shared because inode_lock is introduced earlier.
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_INODE_LOCK], [
|
|
- AC_MSG_CHECKING([whether inode_lock_shared() exists])
|
|
- tmp_flags="$EXTRA_KCFLAGS"
|
|
- EXTRA_KCFLAGS="-Werror"
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/fs.h>
|
|
- ],[
|
|
- struct inode *inode = NULL;
|
|
- inode_lock_shared(inode);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_INODE_LOCK_SHARED, 1, [yes])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
- EXTRA_KCFLAGS="$tmp_flags"
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 4.9 API change
|
|
-dnl # group_info changed from 2d array via >blocks to 1d array via ->gid
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_GROUP_INFO_GID], [
|
|
- AC_MSG_CHECKING([whether group_info->gid exists])
|
|
- tmp_flags="$EXTRA_KCFLAGS"
|
|
- EXTRA_KCFLAGS="-Werror"
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/cred.h>
|
|
- ],[
|
|
- struct group_info *gi = groups_alloc(1);
|
|
- gi->gid[0] = KGIDT_INIT(0);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_GROUP_INFO_GID, 1, [group_info->gid exists])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
- EXTRA_KCFLAGS="$tmp_flags"
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # grsecurity API change,
|
|
-dnl # kmem_cache_create() with SLAB_USERCOPY flag replaced by
|
|
-dnl # kmem_cache_create_usercopy().
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_KMEM_CACHE_CREATE_USERCOPY], [
|
|
- AC_MSG_CHECKING([whether kmem_cache_create_usercopy() exists])
|
|
- tmp_flags="$EXTRA_KCFLAGS"
|
|
- EXTRA_KCFLAGS="-Werror"
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/slab.h>
|
|
- static void ctor(void *foo)
|
|
- {
|
|
- // fake ctor
|
|
- }
|
|
- ],[
|
|
- struct kmem_cache *skc_linux_cache;
|
|
- const char *name = "test";
|
|
- size_t size = 4096;
|
|
- size_t align = 8;
|
|
- unsigned long flags = 0;
|
|
- size_t useroffset = 0;
|
|
- size_t usersize = size - useroffset;
|
|
-
|
|
- skc_linux_cache = kmem_cache_create_usercopy(
|
|
- name, size, align, flags, useroffset, usersize, ctor);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_KMEM_CACHE_CREATE_USERCOPY, 1,
|
|
- [kmem_cache_create_usercopy() exists])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
- EXTRA_KCFLAGS="$tmp_flags"
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 4.13 API change
|
|
-dnl # Renamed struct wait_queue -> struct wait_queue_entry.
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_WAIT_QUEUE_ENTRY_T], [
|
|
- AC_MSG_CHECKING([whether wait_queue_entry_t exists])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/wait.h>
|
|
- ],[
|
|
- wait_queue_entry_t *entry __attribute__ ((unused));
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_WAIT_QUEUE_ENTRY_T, 1,
|
|
- [wait_queue_entry_t exists])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 4.13 API change
|
|
-dnl # Renamed wait_queue_head::task_list -> wait_queue_head::head
|
|
-dnl # Renamed wait_queue_entry::task_list -> wait_queue_entry::entry
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_WAIT_QUEUE_HEAD_ENTRY], [
|
|
- AC_MSG_CHECKING([whether wq_head->head and wq_entry->entry exist])
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/wait.h>
|
|
-
|
|
- #ifdef HAVE_WAIT_QUEUE_ENTRY_T
|
|
- typedef wait_queue_head_t spl_wait_queue_head_t;
|
|
- typedef wait_queue_entry_t spl_wait_queue_entry_t;
|
|
- #else
|
|
- typedef wait_queue_head_t spl_wait_queue_head_t;
|
|
- typedef wait_queue_t spl_wait_queue_entry_t;
|
|
- #endif
|
|
- ],[
|
|
- spl_wait_queue_head_t wq_head;
|
|
- spl_wait_queue_entry_t wq_entry;
|
|
- struct list_head *head __attribute__ ((unused));
|
|
- struct list_head *entry __attribute__ ((unused));
|
|
-
|
|
- head = &wq_head.head;
|
|
- entry = &wq_entry.entry;
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_WAIT_QUEUE_HEAD_ENTRY, 1,
|
|
- [wq_head->head and wq_entry->entry exist])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 3.19 API change
|
|
-dnl # The io_schedule_timeout() function is present in all 2.6.32 kernels
|
|
-dnl # but it was not exported until Linux 3.19. The RHEL 7.x kernels which
|
|
-dnl # are based on a 3.10 kernel do export this symbol.
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_IO_SCHEDULE_TIMEOUT], [
|
|
- AC_MSG_CHECKING([whether io_schedule_timeout() is available])
|
|
- SPL_LINUX_TRY_COMPILE_SYMBOL([
|
|
- #include <linux/sched.h>
|
|
- ], [
|
|
- (void) io_schedule_timeout(1);
|
|
- ], [io_schedule_timeout], [], [
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_IO_SCHEDULE_TIMEOUT, 1, [yes])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 4.14 API change
|
|
-dnl # kernel_write() which was introduced in 3.9 was updated to take
|
|
-dnl # the offset as a pointer which is needed by vn_rdwr().
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_KERNEL_WRITE], [
|
|
- AC_MSG_CHECKING([whether kernel_write() takes loff_t pointer])
|
|
- tmp_flags="$EXTRA_KCFLAGS"
|
|
- EXTRA_KCFLAGS="-Werror"
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/fs.h>
|
|
- ],[
|
|
- struct file *file = NULL;
|
|
- const void *buf = NULL;
|
|
- size_t count = 0;
|
|
- loff_t *pos = NULL;
|
|
- ssize_t ret;
|
|
-
|
|
- ret = kernel_write(file, buf, count, pos);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_KERNEL_WRITE_PPOS, 1,
|
|
- [kernel_write() take loff_t pointer])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
- EXTRA_KCFLAGS="$tmp_flags"
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 4.14 API change
|
|
-dnl # kernel_read() which has existed for forever was updated to take
|
|
-dnl # the offset as a pointer which is needed by vn_rdwr().
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_KERNEL_READ], [
|
|
- AC_MSG_CHECKING([whether kernel_read() takes loff_t pointer])
|
|
- tmp_flags="$EXTRA_KCFLAGS"
|
|
- EXTRA_KCFLAGS="-Werror"
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/fs.h>
|
|
- ],[
|
|
- struct file *file = NULL;
|
|
- void *buf = NULL;
|
|
- size_t count = 0;
|
|
- loff_t *pos = NULL;
|
|
- ssize_t ret;
|
|
-
|
|
- ret = kernel_read(file, buf, count, pos);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_KERNEL_READ_PPOS, 1,
|
|
- [kernel_read() take loff_t pointer])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
- EXTRA_KCFLAGS="$tmp_flags"
|
|
-])
|
|
-
|
|
-dnl #
|
|
-dnl # 4.15 API change
|
|
-dnl # https://lkml.org/lkml/2017/11/25/90
|
|
-dnl # Check if timer_list.func get passed a timer_list or an unsigned long
|
|
-dnl # (older kernels). Also sanity check the from_timer() and timer_setup()
|
|
-dnl # macros are available as well, since they will be used in the same newer
|
|
-dnl # kernels that support the new timer_list.func signature.
|
|
-dnl #
|
|
-AC_DEFUN([SPL_AC_KERNEL_TIMER_FUNCTION_TIMER_LIST], [
|
|
- AC_MSG_CHECKING([whether timer_list.function gets a timer_list])
|
|
- tmp_flags="$EXTRA_KCFLAGS"
|
|
- EXTRA_KCFLAGS="-Werror"
|
|
- SPL_LINUX_TRY_COMPILE([
|
|
- #include <linux/timer.h>
|
|
- void task_expire(struct timer_list *tl) {}
|
|
- ],[
|
|
- #ifndef from_timer
|
|
- #error "No from_timer() macro"
|
|
- #endif
|
|
-
|
|
- struct timer_list timer;
|
|
- timer.function = task_expire;
|
|
- timer_setup(&timer, NULL, 0);
|
|
- ],[
|
|
- AC_MSG_RESULT(yes)
|
|
- AC_DEFINE(HAVE_KERNEL_TIMER_FUNCTION_TIMER_LIST, 1,
|
|
- [timer_list.function gets a timer_list])
|
|
- ],[
|
|
- AC_MSG_RESULT(no)
|
|
- ])
|
|
- EXTRA_KCFLAGS="$tmp_flags"
|
|
-])
|
|
--
|
|
2.14.2
|
|
|