+++ /dev/null
-From 5cb46f6a664db913f0ef2bf8e929c3f8d8cbfc5b Mon Sep 17 00:00:00 2001
-From: Tony Hutter <hutter2@llnl.gov>
-Date: Wed, 9 Jan 2019 13:16:39 -0800
-Subject: [PATCH] Linux 4.18 compat: Use ktime_get_coarse_real_ts64()
-
-Newer kernels remove current_kernel_time64(). Use
-ktime_get_coarse_real_ts64() in its place.
-
-Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
-Signed-off-by: Tony Hutter <hutter2@llnl.gov>
-Closes #8258
----
- config/kernel-ktime_get_coarse_real_ts64.m4 | 18 ++++++++++++++++++
- config/kernel.m4 | 1 +
- include/spl/sys/time.h | 12 ++++++++++++
- 3 files changed, 31 insertions(+)
- create mode 100644 config/kernel-ktime_get_coarse_real_ts64.m4
-
-diff --git a/config/kernel-ktime_get_coarse_real_ts64.m4 b/config/kernel-ktime_get_coarse_real_ts64.m4
-new file mode 100644
-index 00000000000..d6be8c4185a
---- /dev/null
-+++ b/config/kernel-ktime_get_coarse_real_ts64.m4
-@@ -0,0 +1,18 @@
-+dnl #
-+dnl # 4.18: ktime_get_coarse_real_ts64() added. Use it in place of
-+dnl # current_kernel_time64().
-+dnl #
-+AC_DEFUN([ZFS_AC_KERNEL_KTIME_GET_COARSE_REAL_TS64],
-+ [AC_MSG_CHECKING([whether ktime_get_coarse_real_ts64() exists])
-+ ZFS_LINUX_TRY_COMPILE([
-+ #include <linux/mm.h>
-+ ], [
-+ struct timespec64 ts;
-+ ktime_get_coarse_real_ts64(&ts);
-+ ], [
-+ AC_MSG_RESULT(yes)
-+ AC_DEFINE(HAVE_KTIME_GET_COARSE_REAL_TS64, 1, [ktime_get_coarse_real_ts64() exists])
-+ ], [
-+ AC_MSG_RESULT(no)
-+ ])
-+])
-diff --git a/config/kernel.m4 b/config/kernel.m4
-index 7330c00e1bd..098c4370073 100644
---- a/config/kernel.m4
-+++ b/config/kernel.m4
-@@ -161,6 +161,7 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
- ZFS_AC_KERNEL_ACL_HAS_REFCOUNT
- ZFS_AC_KERNEL_USERNS_CAPABILITIES
- ZFS_AC_KERNEL_IN_COMPAT_SYSCALL
-+ ZFS_AC_KERNEL_KTIME_GET_COARSE_REAL_TS64
-
- AS_IF([test "$LINUX_OBJ" != "$LINUX"], [
- KERNEL_MAKE="$KERNEL_MAKE O=$LINUX_OBJ"
-diff --git a/include/spl/sys/time.h b/include/spl/sys/time.h
-index 1a986c9b97c..312415b7bc8 100644
---- a/include/spl/sys/time.h
-+++ b/include/spl/sys/time.h
-@@ -73,7 +73,13 @@ static inline void
- gethrestime(inode_timespec_t *ts)
- {
- #if defined(HAVE_INODE_TIMESPEC64_TIMES)
-+
-+#if defined(HAVE_KTIME_GET_COARSE_REAL_TS64)
-+ ktime_get_coarse_real_ts64(ts);
-+#else
- *ts = current_kernel_time64();
-+#endif /* HAVE_KTIME_GET_COARSE_REAL_TS64 */
-+
- #else
- *ts = current_kernel_time();
- #endif
-@@ -83,7 +89,13 @@ static inline time_t
- gethrestime_sec(void)
- {
- #if defined(HAVE_INODE_TIMESPEC64_TIMES)
-+#if defined(HAVE_KTIME_GET_COARSE_REAL_TS64)
-+ inode_timespec_t ts;
-+ ktime_get_coarse_real_ts64(&ts);
-+#else
- inode_timespec_t ts = current_kernel_time64();
-+#endif /* HAVE_KTIME_GET_COARSE_REAL_TS64 */
-+
- #else
- inode_timespec_t ts = current_kernel_time();
- #endif
-From 77e50c3070a0009c4ed8b50dbb7cf0df48bdda90 Mon Sep 17 00:00:00 2001
-From: Tony Hutter <hutter2@llnl.gov>
-Date: Thu, 10 Jan 2019 11:03:40 -0800
-Subject: [PATCH] Linux 5.0 compat: access_ok() drops 'type' parameter
-
-access_ok no longer needs a 'type' parameter in the 5.0 kernel.
-
-Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
-Signed-off-by: Tony Hutter <hutter2@llnl.gov>
-Closes #8261
----
- config/kernel-access-ok-type.m4 | 21 +++++++++++++++++++++
- config/kernel.m4 | 1 +
- include/linux/kmap_compat.h | 8 ++++++++
- module/zcommon/zfs_uio.c | 3 +--
- 4 files changed, 31 insertions(+), 2 deletions(-)
- create mode 100644 config/kernel-access-ok-type.m4
-
-diff --git a/config/kernel-access-ok-type.m4 b/config/kernel-access-ok-type.m4
-new file mode 100644
-index 00000000000..3b2878a55cb
---- /dev/null
-+++ b/config/kernel-access-ok-type.m4
-@@ -0,0 +1,21 @@
-+dnl #
-+dnl # Linux 5.0: access_ok() drops 'type' parameter:
-+dnl #
-+dnl # - access_ok(type, addr, size)
-+dnl # + access_ok(addr, size)
-+dnl #
-+AC_DEFUN([ZFS_AC_KERNEL_ACCESS_OK_TYPE], [
-+ AC_MSG_CHECKING([whether access_ok() has 'type' parameter])
-+ ZFS_LINUX_TRY_COMPILE([
-+ #include <linux/uaccess.h>
-+ ],[
-+ const void __user __attribute__((unused)) *addr = (void *) 0xdeadbeef;
-+ unsigned long __attribute__((unused)) size = 1;
-+ int error __attribute__((unused)) = access_ok(0, addr, size);
-+ ],[
-+ AC_MSG_RESULT(yes)
-+ AC_DEFINE(HAVE_ACCESS_OK_TYPE, 1, [kernel has access_ok with 'type' parameter])
-+ ],[
-+ AC_MSG_RESULT(no)
-+ ])
-+])
-diff --git a/config/kernel.m4 b/config/kernel.m4
-index 098c4370073..ea04d85b6cd 100644
---- a/config/kernel.m4
-+++ b/config/kernel.m4
-@@ -4,6 +4,7 @@ dnl #
- AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
- ZFS_AC_KERNEL
- ZFS_AC_QAT
-+ ZFS_AC_KERNEL_ACCESS_OK_TYPE
- ZFS_AC_TEST_MODULE
- ZFS_AC_KERNEL_MISC_MINOR
- ZFS_AC_KERNEL_OBJTOOL
-diff --git a/include/linux/kmap_compat.h b/include/linux/kmap_compat.h
-index 59ae566ce9d..b9c7f5bcc9d 100644
---- a/include/linux/kmap_compat.h
-+++ b/include/linux/kmap_compat.h
-@@ -27,6 +27,7 @@
- #define _ZFS_KMAP_H
-
- #include <linux/highmem.h>
-+#include <linux/uaccess.h>
-
- #ifdef HAVE_1ARG_KMAP_ATOMIC
- /* 2.6.37 API change */
-@@ -37,4 +38,11 @@
- #define zfs_kunmap_atomic(addr, km_type) kunmap_atomic(addr, km_type)
- #endif
-
-+/* 5.0 API change - no more 'type' argument for access_ok() */
-+#ifdef HAVE_ACCESS_OK_TYPE
-+#define zfs_access_ok(type, addr, size) access_ok(type, addr, size)
-+#else
-+#define zfs_access_ok(type, addr, size) access_ok(addr, size)
-+#endif
-+
- #endif /* _ZFS_KMAP_H */
-diff --git a/module/zcommon/zfs_uio.c b/module/zcommon/zfs_uio.c
-index a2c1b5c3aaf..c1e31f51be0 100644
---- a/module/zcommon/zfs_uio.c
-+++ b/module/zcommon/zfs_uio.c
-@@ -81,11 +81,10 @@ uiomove_iov(void *p, size_t n, enum uio_rw rw, struct uio *uio)
- return (EFAULT);
- } else {
- if (uio->uio_fault_disable) {
-- if (!access_ok(VERIFY_READ,
-+ if (!zfs_access_ok(VERIFY_READ,
- (iov->iov_base + skip), cnt)) {
- return (EFAULT);
- }
--
- pagefault_disable();
- if (__copy_from_user_inatomic(p,
- (iov->iov_base + skip), cnt)) {
-From 031cea17a3db1dae3b6968a8c71bcfb678a03235 Mon Sep 17 00:00:00 2001
-From: Tony Hutter <hutter2@llnl.gov>
-Date: Thu, 10 Jan 2019 14:28:10 -0800
-Subject: [PATCH] Linux 5.0 compat: Use totalram_pages()
-
-totalram_pages() was converted to an atomic variable in 5.0:
-
-https://patchwork.kernel.org/patch/10652795/
-
-Its value should now be read though the totalram_pages() helper
-function.
-
-Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
-Signed-off-by: Tony Hutter <hutter2@llnl.gov>
-Closes #8263
----
- config/kernel-totalram-pages-func.m4 | 18 ++++++++++++++++++
- config/kernel.m4 | 1 +
- include/spl/sys/vmsystm.h | 8 +++++++-
- module/zfs/arc.c | 4 ++--
- 4 files changed, 28 insertions(+), 3 deletions(-)
- create mode 100644 config/kernel-totalram-pages-func.m4
-
-diff --git a/config/kernel-totalram-pages-func.m4 b/config/kernel-totalram-pages-func.m4
-new file mode 100644
-index 00000000000..a6eac645431
---- /dev/null
-+++ b/config/kernel-totalram-pages-func.m4
-@@ -0,0 +1,18 @@
-+dnl #
-+dnl # Linux 5.0: totalram_pages is no longer a global variable, and must be
-+dnl # read via the totalram_pages() helper function.
-+dnl #
-+AC_DEFUN([ZFS_AC_KERNEL_TOTALRAM_PAGES_FUNC], [
-+ AC_MSG_CHECKING([whether totalram_pages() exists])
-+ ZFS_LINUX_TRY_COMPILE([
-+ #include <linux/mm.h>
-+ ],[
-+ unsigned long pages __attribute__ ((unused));
-+ pages = totalram_pages();
-+ ],[
-+ AC_MSG_RESULT(yes)
-+ AC_DEFINE(HAVE_TOTALRAM_PAGES_FUNC, 1, [kernel has totalram_pages()])
-+ ],[
-+ AC_MSG_RESULT(no)
-+ ])
-+])
-diff --git a/config/kernel.m4 b/config/kernel.m4
-index ea04d85b6cd..e4d0e3393b6 100644
---- a/config/kernel.m4
-+++ b/config/kernel.m4
-@@ -163,6 +163,7 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
- ZFS_AC_KERNEL_USERNS_CAPABILITIES
- ZFS_AC_KERNEL_IN_COMPAT_SYSCALL
- ZFS_AC_KERNEL_KTIME_GET_COARSE_REAL_TS64
-+ ZFS_AC_KERNEL_TOTALRAM_PAGES_FUNC
-
- AS_IF([test "$LINUX_OBJ" != "$LINUX"], [
- KERNEL_MAKE="$KERNEL_MAKE O=$LINUX_OBJ"
-diff --git a/include/spl/sys/vmsystm.h b/include/spl/sys/vmsystm.h
-index 2b48fe0e369..6bdfc852ac0 100644
---- a/include/spl/sys/vmsystm.h
-+++ b/include/spl/sys/vmsystm.h
-@@ -33,8 +33,16 @@
- #include <sys/types.h>
- #include <asm/uaccess.h>
-
-+#ifdef HAVE_TOTALRAM_PAGES_FUNC
-+#define zfs_totalram_pages totalram_pages()
-+#define zfs_totalhigh_pages totalhigh_pages()
-+#else
-+#define zfs_totalram_pages totalram_pages
-+#define zfs_totalhigh_pages totalhigh_pages
-+#endif
-+
- #define membar_producer() smp_wmb()
--#define physmem totalram_pages
-+#define physmem zfs_totalram_pages
- #define freemem (nr_free_pages() + \
- global_page_state(NR_INACTIVE_FILE) + \
- global_page_state(NR_INACTIVE_ANON) + \
-diff --git a/module/zfs/arc.c b/module/zfs/arc.c
-index 7e09633345d..f5d94cbf90a 100644
---- a/module/zfs/arc.c
-+++ b/module/zfs/arc.c
-@@ -4821,9 +4821,9 @@ arc_all_memory(void)
- {
- #ifdef _KERNEL
- #ifdef CONFIG_HIGHMEM
-- return (ptob(totalram_pages - totalhigh_pages));
-+ return (ptob(zfs_totalram_pages - zfs_totalhigh_pages));
- #else
-- return (ptob(totalram_pages));
-+ return (ptob(zfs_totalram_pages));
- #endif /* CONFIG_HIGHMEM */
- #else
- return (ptob(physmem) / 2);
-From 05805494dd7ea3b2fbb34ac031c338a8bc0bab62 Mon Sep 17 00:00:00 2001
-From: Tony Hutter <hutter2@llnl.gov>
-Date: Thu, 10 Jan 2019 15:28:44 -0800
-Subject: [PATCH] Linux 5.0 compat: Convert MS_* macros to SB_*
-
-In the 5.0 kernel, only the mount namespace code should use the MS_*
-macos. Filesystems should use the SB_* ones.
-
-https://patchwork.kernel.org/patch/10552493/
-
-Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
-Signed-off-by: Tony Hutter <hutter2@llnl.gov>
-Closes #8264
----
- module/zfs/vdev_disk.c | 3 ++-
- module/zfs/zfs_vfsops.c | 23 ++++++++++++-----------
- 2 files changed, 14 insertions(+), 12 deletions(-)
-
-diff --git a/module/zfs/vdev_disk.c b/module/zfs/vdev_disk.c
-index d13f365dd05..c53a0aa0fcb 100644
---- a/module/zfs/vdev_disk.c
-+++ b/module/zfs/vdev_disk.c
-@@ -35,6 +35,7 @@
- #include <sys/zio.h>
- #include <linux/mod_compat.h>
- #include <linux/msdos_fs.h>
-+#include <linux/vfs_compat.h>
-
- char *zfs_vdev_scheduler = VDEV_SCHEDULER;
- static void *zfs_vdev_holder = VDEV_HOLDER;
-@@ -79,7 +80,7 @@ vdev_bdev_mode(int smode)
- ASSERT3S(smode & (FREAD | FWRITE), !=, 0);
-
- if ((smode & FREAD) && !(smode & FWRITE))
-- mode = MS_RDONLY;
-+ mode = SB_RDONLY;
-
- return (mode);
- }
-diff --git a/module/zfs/zfs_vfsops.c b/module/zfs/zfs_vfsops.c
-index c9e314caa22..766cbab7436 100644
---- a/module/zfs/zfs_vfsops.c
-+++ b/module/zfs/zfs_vfsops.c
-@@ -56,6 +56,7 @@
- #include <sys/dmu_objset.h>
- #include <sys/spa_boot.h>
- #include <sys/zpl.h>
-+#include <linux/vfs_compat.h>
- #include "zfs_comutil.h"
-
- enum {
-@@ -249,7 +250,7 @@ zfsvfs_parse_options(char *mntopts, vfs_t **vfsp)
- boolean_t
- zfs_is_readonly(zfsvfs_t *zfsvfs)
- {
-- return (!!(zfsvfs->z_sb->s_flags & MS_RDONLY));
-+ return (!!(zfsvfs->z_sb->s_flags & SB_RDONLY));
- }
-
- /*ARGSUSED*/
-@@ -336,15 +337,15 @@ acltype_changed_cb(void *arg, uint64_t newval)
- switch (newval) {
- case ZFS_ACLTYPE_OFF:
- zfsvfs->z_acl_type = ZFS_ACLTYPE_OFF;
-- zfsvfs->z_sb->s_flags &= ~MS_POSIXACL;
-+ zfsvfs->z_sb->s_flags &= ~SB_POSIXACL;
- break;
- case ZFS_ACLTYPE_POSIXACL:
- #ifdef CONFIG_FS_POSIX_ACL
- zfsvfs->z_acl_type = ZFS_ACLTYPE_POSIXACL;
-- zfsvfs->z_sb->s_flags |= MS_POSIXACL;
-+ zfsvfs->z_sb->s_flags |= SB_POSIXACL;
- #else
- zfsvfs->z_acl_type = ZFS_ACLTYPE_OFF;
-- zfsvfs->z_sb->s_flags &= ~MS_POSIXACL;
-+ zfsvfs->z_sb->s_flags &= ~SB_POSIXACL;
- #endif /* CONFIG_FS_POSIX_ACL */
- break;
- default:
-@@ -373,9 +374,9 @@ readonly_changed_cb(void *arg, uint64_t newval)
- return;
-
- if (newval)
-- sb->s_flags |= MS_RDONLY;
-+ sb->s_flags |= SB_RDONLY;
- else
-- sb->s_flags &= ~MS_RDONLY;
-+ sb->s_flags &= ~SB_RDONLY;
- }
-
- static void
-@@ -403,9 +404,9 @@ nbmand_changed_cb(void *arg, uint64_t newval)
- return;
-
- if (newval == TRUE)
-- sb->s_flags |= MS_MANDLOCK;
-+ sb->s_flags |= SB_MANDLOCK;
- else
-- sb->s_flags &= ~MS_MANDLOCK;
-+ sb->s_flags &= ~SB_MANDLOCK;
- }
-
- static void
-@@ -1954,8 +1955,8 @@ zfs_remount(struct super_block *sb, int *flags, zfs_mnt_t *zm)
- int error;
-
- if ((issnap || !spa_writeable(dmu_objset_spa(zfsvfs->z_os))) &&
-- !(*flags & MS_RDONLY)) {
-- *flags |= MS_RDONLY;
-+ !(*flags & SB_RDONLY)) {
-+ *flags |= SB_RDONLY;
- return (EROFS);
- }
-
-@@ -1963,7 +1964,7 @@ zfs_remount(struct super_block *sb, int *flags, zfs_mnt_t *zm)
- if (error)
- return (error);
-
-- if (!zfs_is_readonly(zfsvfs) && (*flags & MS_RDONLY))
-+ if (!zfs_is_readonly(zfsvfs) && (*flags & SB_RDONLY))
- txg_wait_synced(dmu_objset_pool(zfsvfs->z_os), 0);
-
- zfs_unregister_callbacks(zfsvfs);
-From ed158b19b1dddf26f2bbebb4d0fd21f04fdd5d38 Mon Sep 17 00:00:00 2001
-From: Tony Hutter <hutter2@llnl.gov>
-Date: Thu, 10 Jan 2019 17:07:05 -0800
-Subject: [PATCH] Linux 5.0 compat: Fix SUBDIRs
-
-SUBDIRs has been deprecated for a long time, and was finally removed in
-the 5.0 kernel. Use "M=" instead.
-
-Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
-Signed-off-by: Tony Hutter <hutter2@llnl.gov>
-Closes #8257
----
- module/Makefile.in | 6 +++---
- 1 file changed, 3 insertions(+), 3 deletions(-)
-
-diff --git a/module/Makefile.in b/module/Makefile.in
-index 82d155dd31a..935bd266306 100644
---- a/module/Makefile.in
-+++ b/module/Makefile.in
-@@ -29,12 +29,12 @@ modules:
- list='$(SUBDIR_TARGETS)'; for targetdir in $$list; do \
- $(MAKE) -C $$targetdir; \
- done
-- $(MAKE) -C @LINUX_OBJ@ SUBDIRS=`pwd` @KERNEL_MAKE@ CONFIG_ZFS=m $@
-+ $(MAKE) -C @LINUX_OBJ@ M=`pwd` @KERNEL_MAKE@ CONFIG_ZFS=m $@
-
- clean:
- @# Only cleanup the kernel build directories when CONFIG_KERNEL
- @# is defined. This indicates that kernel modules should be built.
--@CONFIG_KERNEL_TRUE@ $(MAKE) -C @LINUX_OBJ@ SUBDIRS=`pwd` @KERNEL_MAKE@ $@
-+@CONFIG_KERNEL_TRUE@ $(MAKE) -C @LINUX_OBJ@ M=`pwd` @KERNEL_MAKE@ $@
-
- if [ -f @LINUX_SYMBOLS@ ]; then $(RM) @LINUX_SYMBOLS@; fi
- if [ -f Module.markers ]; then $(RM) Module.markers; fi
-@@ -43,7 +43,7 @@ clean:
-
- modules_install:
- @# Install the kernel modules
-- $(MAKE) -C @LINUX_OBJ@ SUBDIRS=`pwd` $@ \
-+ $(MAKE) -C @LINUX_OBJ@ M=`pwd` $@ \
- INSTALL_MOD_PATH=$(DESTDIR)$(INSTALL_MOD_PATH) \
- INSTALL_MOD_DIR=$(INSTALL_MOD_DIR) \
- KERNELRELEASE=@LINUX_VERSION@
-From 0c593296e98e3ac95f14704e4cee6cedb2134990 Mon Sep 17 00:00:00 2001
-From: Tony Hutter <hutter2@llnl.gov>
-Date: Fri, 11 Jan 2019 18:01:28 -0800
-Subject: [PATCH] Linux 5.0 compat: Disable vector instructions on 5.0+ kernels
-
-The 5.0 kernel no longer exports the functions we need to do vector
-(SSE/SSE2/SSE3/AVX...) instructions. Disable vector-based checksum
-algorithms when building against those kernels.
-
-Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
-Signed-off-by: Tony Hutter <hutter2@llnl.gov>
-Closes #8259
----
- config/kernel-fpu.m4 | 41 ++++++++---
- include/linux/simd_x86.h | 142 ++++++++++++++++++++++++++++++---------
- 2 files changed, 144 insertions(+), 39 deletions(-)
-
-diff --git a/config/kernel-fpu.m4 b/config/kernel-fpu.m4
-index 1c5690969d4..671fe7ea54e 100644
---- a/config/kernel-fpu.m4
-+++ b/config/kernel-fpu.m4
-@@ -1,18 +1,41 @@
-+dnl #
-+dnl # Handle differences in kernel FPU code.
- dnl #
--dnl # 4.2 API change
--dnl # asm/i387.h is replaced by asm/fpu/api.h
-+dnl # Kernel
-+dnl # 5.0: All kernel fpu functions are GPL only, so we can't use them.
-+dnl # (nothing defined)
-+dnl #
-+dnl # 4.2: Use __kernel_fpu_{begin,end}()
-+dnl # HAVE_UNDERSCORE_KERNEL_FPU & KERNEL_EXPORTS_X86_FPU
-+dnl #
-+dnl # Pre-4.2: Use kernel_fpu_{begin,end}()
-+dnl # HAVE_KERNEL_FPU & KERNEL_EXPORTS_X86_FPU
- dnl #
- AC_DEFUN([ZFS_AC_KERNEL_FPU], [
-- AC_MSG_CHECKING([whether asm/fpu/api.h exists])
-+ AC_MSG_CHECKING([which kernel_fpu function to use])
- ZFS_LINUX_TRY_COMPILE([
-- #include <linux/kernel.h>
-- #include <asm/fpu/api.h>
-+ #include <asm/i387.h>
-+ #include <asm/xcr.h>
- ],[
-- __kernel_fpu_begin();
-+ kernel_fpu_begin();
-+ kernel_fpu_end();
- ],[
-- AC_MSG_RESULT(yes)
-- AC_DEFINE(HAVE_FPU_API_H, 1, [kernel has <asm/fpu/api.h> interface])
-+ AC_MSG_RESULT(kernel_fpu_*)
-+ AC_DEFINE(HAVE_KERNEL_FPU, 1, [kernel has kernel_fpu_* functions])
-+ AC_DEFINE(KERNEL_EXPORTS_X86_FPU, 1, [kernel exports FPU functions])
- ],[
-- AC_MSG_RESULT(no)
-+ ZFS_LINUX_TRY_COMPILE([
-+ #include <linux/kernel.h>
-+ #include <asm/fpu/api.h>
-+ ],[
-+ __kernel_fpu_begin();
-+ __kernel_fpu_end();
-+ ],[
-+ AC_MSG_RESULT(__kernel_fpu_*)
-+ AC_DEFINE(HAVE_UNDERSCORE_KERNEL_FPU, 1, [kernel has __kernel_fpu_* functions])
-+ AC_DEFINE(KERNEL_EXPORTS_X86_FPU, 1, [kernel exports FPU functions])
-+ ],[
-+ AC_MSG_RESULT(not exported)
-+ ])
- ])
- ])
-diff --git a/include/linux/simd_x86.h b/include/linux/simd_x86.h
-index 10ce02e3746..5d6fbed35b9 100644
---- a/include/linux/simd_x86.h
-+++ b/include/linux/simd_x86.h
-@@ -81,7 +81,7 @@
- #endif
-
- #if defined(_KERNEL)
--#if defined(HAVE_FPU_API_H)
-+#if defined(HAVE_UNDERSCORE_KERNEL_FPU)
- #include <asm/fpu/api.h>
- #include <asm/fpu/internal.h>
- #define kfpu_begin() \
-@@ -94,12 +94,18 @@
- __kernel_fpu_end(); \
- preempt_enable(); \
- }
--#else
-+#elif defined(HAVE_KERNEL_FPU)
- #include <asm/i387.h>
- #include <asm/xcr.h>
- #define kfpu_begin() kernel_fpu_begin()
- #define kfpu_end() kernel_fpu_end()
--#endif /* defined(HAVE_FPU_API_H) */
-+#else
-+/* Kernel doesn't export any kernel_fpu_* functions */
-+#include <asm/fpu/internal.h> /* For kernel xgetbv() */
-+#define kfpu_begin() panic("This code should never run")
-+#define kfpu_end() panic("This code should never run")
-+#endif /* defined(HAVE_KERNEL_FPU) */
-+
- #else
- /*
- * fpu dummy methods for userspace
-@@ -286,11 +292,13 @@ __simd_state_enabled(const uint64_t state)
- boolean_t has_osxsave;
- uint64_t xcr0;
-
--#if defined(_KERNEL) && defined(X86_FEATURE_OSXSAVE)
-+#if defined(_KERNEL)
-+#if defined(X86_FEATURE_OSXSAVE) && defined(KERNEL_EXPORTS_X86_FPU)
- has_osxsave = !!boot_cpu_has(X86_FEATURE_OSXSAVE);
--#elif defined(_KERNEL) && !defined(X86_FEATURE_OSXSAVE)
-- has_osxsave = B_FALSE;
- #else
-+ has_osxsave = B_FALSE;
-+#endif
-+#elif !defined(_KERNEL)
- has_osxsave = __cpuid_has_osxsave();
- #endif
-
-@@ -315,8 +323,12 @@ static inline boolean_t
- zfs_sse_available(void)
- {
- #if defined(_KERNEL)
-+#if defined(KERNEL_EXPORTS_X86_FPU)
- return (!!boot_cpu_has(X86_FEATURE_XMM));
- #else
-+ return (B_FALSE);
-+#endif
-+#elif !defined(_KERNEL)
- return (__cpuid_has_sse());
- #endif
- }
-@@ -328,8 +340,12 @@ static inline boolean_t
- zfs_sse2_available(void)
- {
- #if defined(_KERNEL)
-+#if defined(KERNEL_EXPORTS_X86_FPU)
- return (!!boot_cpu_has(X86_FEATURE_XMM2));
- #else
-+ return (B_FALSE);
-+#endif
-+#elif !defined(_KERNEL)
- return (__cpuid_has_sse2());
- #endif
- }
-@@ -341,8 +357,12 @@ static inline boolean_t
- zfs_sse3_available(void)
- {
- #if defined(_KERNEL)
-+#if defined(KERNEL_EXPORTS_X86_FPU)
- return (!!boot_cpu_has(X86_FEATURE_XMM3));
- #else
-+ return (B_FALSE);
-+#endif
-+#elif !defined(_KERNEL)
- return (__cpuid_has_sse3());
- #endif
- }
-@@ -354,8 +374,12 @@ static inline boolean_t
- zfs_ssse3_available(void)
- {
- #if defined(_KERNEL)
-+#if defined(KERNEL_EXPORTS_X86_FPU)
- return (!!boot_cpu_has(X86_FEATURE_SSSE3));
- #else
-+ return (B_FALSE);
-+#endif
-+#elif !defined(_KERNEL)
- return (__cpuid_has_ssse3());
- #endif
- }
-@@ -367,8 +391,12 @@ static inline boolean_t
- zfs_sse4_1_available(void)
- {
- #if defined(_KERNEL)
-+#if defined(KERNEL_EXPORTS_X86_FPU)
- return (!!boot_cpu_has(X86_FEATURE_XMM4_1));
- #else
-+ return (B_FALSE);
-+#endif
-+#elif !defined(_KERNEL)
- return (__cpuid_has_sse4_1());
- #endif
- }
-@@ -380,8 +408,12 @@ static inline boolean_t
- zfs_sse4_2_available(void)
- {
- #if defined(_KERNEL)
-+#if defined(KERNEL_EXPORTS_X86_FPU)
- return (!!boot_cpu_has(X86_FEATURE_XMM4_2));
- #else
-+ return (B_FALSE);
-+#endif
-+#elif !defined(_KERNEL)
- return (__cpuid_has_sse4_2());
- #endif
- }
-@@ -394,8 +426,12 @@ zfs_avx_available(void)
- {
- boolean_t has_avx;
- #if defined(_KERNEL)
-+#if defined(KERNEL_EXPORTS_X86_FPU)
- has_avx = !!boot_cpu_has(X86_FEATURE_AVX);
- #else
-+ has_avx = B_FALSE;
-+#endif
-+#elif !defined(_KERNEL)
- has_avx = __cpuid_has_avx();
- #endif
-
-@@ -409,11 +445,13 @@ static inline boolean_t
- zfs_avx2_available(void)
- {
- boolean_t has_avx2;
--#if defined(_KERNEL) && defined(X86_FEATURE_AVX2)
-+#if defined(_KERNEL)
-+#if defined(X86_FEATURE_AVX2) && defined(KERNEL_EXPORTS_X86_FPU)
- has_avx2 = !!boot_cpu_has(X86_FEATURE_AVX2);
--#elif defined(_KERNEL) && !defined(X86_FEATURE_AVX2)
-- has_avx2 = B_FALSE;
- #else
-+ has_avx2 = B_FALSE;
-+#endif
-+#elif !defined(_KERNEL)
- has_avx2 = __cpuid_has_avx2();
- #endif
-
-@@ -426,11 +464,13 @@ zfs_avx2_available(void)
- static inline boolean_t
- zfs_bmi1_available(void)
- {
--#if defined(_KERNEL) && defined(X86_FEATURE_BMI1)
-+#if defined(_KERNEL)
-+#if defined(X86_FEATURE_BMI1) && defined(KERNEL_EXPORTS_X86_FPU)
- return (!!boot_cpu_has(X86_FEATURE_BMI1));
--#elif defined(_KERNEL) && !defined(X86_FEATURE_BMI1)
-- return (B_FALSE);
- #else
-+ return (B_FALSE);
-+#endif
-+#elif !defined(_KERNEL)
- return (__cpuid_has_bmi1());
- #endif
- }
-@@ -441,11 +481,13 @@ zfs_bmi1_available(void)
- static inline boolean_t
- zfs_bmi2_available(void)
- {
--#if defined(_KERNEL) && defined(X86_FEATURE_BMI2)
-+#if defined(_KERNEL)
-+#if defined(X86_FEATURE_BMI2) && defined(KERNEL_EXPORTS_X86_FPU)
- return (!!boot_cpu_has(X86_FEATURE_BMI2));
--#elif defined(_KERNEL) && !defined(X86_FEATURE_BMI2)
-- return (B_FALSE);
- #else
-+ return (B_FALSE);
-+#endif
-+#elif !defined(_KERNEL)
- return (__cpuid_has_bmi2());
- #endif
- }
-@@ -456,11 +498,13 @@ zfs_bmi2_available(void)
- static inline boolean_t
- zfs_aes_available(void)
- {
--#if defined(_KERNEL) && defined(X86_FEATURE_AES)
-+#if defined(_KERNEL)
-+#if defined(X86_FEATURE_AES) && defined(KERNEL_EXPORTS_X86_FPU)
- return (!!boot_cpu_has(X86_FEATURE_AES));
--#elif defined(_KERNEL) && !defined(X86_FEATURE_AES)
-- return (B_FALSE);
- #else
-+ return (B_FALSE);
-+#endif
-+#elif !defined(_KERNEL)
- return (__cpuid_has_aes());
- #endif
- }
-@@ -471,11 +515,13 @@ zfs_aes_available(void)
- static inline boolean_t
- zfs_pclmulqdq_available(void)
- {
--#if defined(_KERNEL) && defined(X86_FEATURE_PCLMULQDQ)
-+#if defined(_KERNEL)
-+#if defined(X86_FEATURE_PCLMULQDQ) && defined(KERNEL_EXPORTS_X86_FPU)
- return (!!boot_cpu_has(X86_FEATURE_PCLMULQDQ));
--#elif defined(_KERNEL) && !defined(X86_FEATURE_PCLMULQDQ)
-- return (B_FALSE);
- #else
-+ return (B_FALSE);
-+#endif
-+#elif !defined(_KERNEL)
- return (__cpuid_has_pclmulqdq());
- #endif
- }
-@@ -503,8 +549,12 @@ zfs_avx512f_available(void)
- {
- boolean_t has_avx512 = B_FALSE;
-
--#if defined(_KERNEL) && defined(X86_FEATURE_AVX512F)
-+#if defined(_KERNEL)
-+#if defined(X86_FEATURE_AVX512F) && defined(KERNEL_EXPORTS_X86_FPU)
- has_avx512 = !!boot_cpu_has(X86_FEATURE_AVX512F);
-+#else
-+ has_avx512 = B_FALSE;
-+#endif
- #elif !defined(_KERNEL)
- has_avx512 = __cpuid_has_avx512f();
- #endif
-@@ -518,9 +568,13 @@ zfs_avx512cd_available(void)
- {
- boolean_t has_avx512 = B_FALSE;
-
--#if defined(_KERNEL) && defined(X86_FEATURE_AVX512CD)
-+#if defined(_KERNEL)
-+#if defined(X86_FEATURE_AVX512CD) && defined(KERNEL_EXPORTS_X86_FPU)
- has_avx512 = boot_cpu_has(X86_FEATURE_AVX512F) &&
- boot_cpu_has(X86_FEATURE_AVX512CD);
-+#else
-+ has_avx512 = B_FALSE;
-+#endif
- #elif !defined(_KERNEL)
- has_avx512 = __cpuid_has_avx512cd();
- #endif
-@@ -534,9 +588,13 @@ zfs_avx512er_available(void)
- {
- boolean_t has_avx512 = B_FALSE;
-
--#if defined(_KERNEL) && defined(X86_FEATURE_AVX512ER)
-+#if defined(_KERNEL)
-+#if defined(X86_FEATURE_AVX512ER) && defined(KERNEL_EXPORTS_X86_FPU)
- has_avx512 = boot_cpu_has(X86_FEATURE_AVX512F) &&
- boot_cpu_has(X86_FEATURE_AVX512ER);
-+#else
-+ has_avx512 = B_FALSE;
-+#endif
- #elif !defined(_KERNEL)
- has_avx512 = __cpuid_has_avx512er();
- #endif
-@@ -550,9 +608,13 @@ zfs_avx512pf_available(void)
- {
- boolean_t has_avx512 = B_FALSE;
-
--#if defined(_KERNEL) && defined(X86_FEATURE_AVX512PF)
-+#if defined(_KERNEL)
-+#if defined(X86_FEATURE_AVX512PF) && defined(KERNEL_EXPORTS_X86_FPU)
- has_avx512 = boot_cpu_has(X86_FEATURE_AVX512F) &&
- boot_cpu_has(X86_FEATURE_AVX512PF);
-+#else
-+ has_avx512 = B_FALSE;
-+#endif
- #elif !defined(_KERNEL)
- has_avx512 = __cpuid_has_avx512pf();
- #endif
-@@ -566,9 +628,13 @@ zfs_avx512bw_available(void)
- {
- boolean_t has_avx512 = B_FALSE;
-
--#if defined(_KERNEL) && defined(X86_FEATURE_AVX512BW)
-+#if defined(_KERNEL)
-+#if defined(X86_FEATURE_AVX512BW) && defined(KERNEL_EXPORTS_X86_FPU)
- has_avx512 = boot_cpu_has(X86_FEATURE_AVX512F) &&
- boot_cpu_has(X86_FEATURE_AVX512BW);
-+#else
-+ has_avx512 = B_FALSE;
-+#endif
- #elif !defined(_KERNEL)
- has_avx512 = __cpuid_has_avx512bw();
- #endif
-@@ -582,9 +648,13 @@ zfs_avx512dq_available(void)
- {
- boolean_t has_avx512 = B_FALSE;
-
--#if defined(_KERNEL) && defined(X86_FEATURE_AVX512DQ)
-+#if defined(_KERNEL)
-+#if defined(X86_FEATURE_AVX512DQ) && defined(KERNEL_EXPORTS_X86_FPU)
- has_avx512 = boot_cpu_has(X86_FEATURE_AVX512F) &&
- boot_cpu_has(X86_FEATURE_AVX512DQ);
-+#else
-+ has_avx512 = B_FALSE;
-+#endif
- #elif !defined(_KERNEL)
- has_avx512 = __cpuid_has_avx512dq();
- #endif
-@@ -598,9 +668,13 @@ zfs_avx512vl_available(void)
- {
- boolean_t has_avx512 = B_FALSE;
-
--#if defined(_KERNEL) && defined(X86_FEATURE_AVX512VL)
-+#if defined(_KERNEL)
-+#if defined(X86_FEATURE_AVX512VL) && defined(KERNEL_EXPORTS_X86_FPU)
- has_avx512 = boot_cpu_has(X86_FEATURE_AVX512F) &&
- boot_cpu_has(X86_FEATURE_AVX512VL);
-+#else
-+ has_avx512 = B_FALSE;
-+#endif
- #elif !defined(_KERNEL)
- has_avx512 = __cpuid_has_avx512vl();
- #endif
-@@ -614,9 +688,13 @@ zfs_avx512ifma_available(void)
- {
- boolean_t has_avx512 = B_FALSE;
-
--#if defined(_KERNEL) && defined(X86_FEATURE_AVX512IFMA)
-+#if defined(_KERNEL)
-+#if defined(X86_FEATURE_AVX512IFMA) && defined(KERNEL_EXPORTS_X86_FPU)
- has_avx512 = boot_cpu_has(X86_FEATURE_AVX512F) &&
- boot_cpu_has(X86_FEATURE_AVX512IFMA);
-+#else
-+ has_avx512 = B_FALSE;
-+#endif
- #elif !defined(_KERNEL)
- has_avx512 = __cpuid_has_avx512ifma();
- #endif
-@@ -630,9 +708,13 @@ zfs_avx512vbmi_available(void)
- {
- boolean_t has_avx512 = B_FALSE;
-
--#if defined(_KERNEL) && defined(X86_FEATURE_AVX512VBMI)
-+#if defined(_KERNEL)
-+#if defined(X86_FEATURE_AVX512VBMI) && defined(KERNEL_EXPORTS_X86_FPU)
- has_avx512 = boot_cpu_has(X86_FEATURE_AVX512F) &&
- boot_cpu_has(X86_FEATURE_AVX512VBMI);
-+#else
-+ has_avx512 = B_FALSE;
-+#endif
- #elif !defined(_KERNEL)
- has_avx512 = __cpuid_has_avx512f() &&
- __cpuid_has_avx512vbmi();
-From 26a856594f731db62446cf537659f9360261fe97 Mon Sep 17 00:00:00 2001
-From: Brian Behlendorf <behlendorf1@llnl.gov>
-Date: Wed, 16 Jan 2019 10:39:19 -0800
-Subject: [PATCH] Linux 5.0 compat: Fix bio_set_dev()
-
-The Linux 5.0 kernel updated the bio_set_dev() macro so it calls the
-GPL-only bio_associate_blkg() symbol thus inadvertently converting
-the entire macro. Provide a minimal version which always assigns the
-request queue's root_blkg to the bio.
-
-Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
-Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
-Closes #8287
----
- config/kernel-bio_set_dev.m4 | 35 +++++++++++++++++++++++++++++++++--
- module/zfs/vdev_disk.c | 29 +++++++++++++++++++++++++++--
- 2 files changed, 60 insertions(+), 4 deletions(-)
-
-diff --git a/config/kernel-bio_set_dev.m4 b/config/kernel-bio_set_dev.m4
-index 6be873c5615..71d47a89309 100644
---- a/config/kernel-bio_set_dev.m4
-+++ b/config/kernel-bio_set_dev.m4
-@@ -1,10 +1,10 @@
- dnl #
- dnl # Linux 4.14 API,
- dnl #
--dnl # The bio_set_dev() helper was introduced as part of the transition
-+dnl # The bio_set_dev() helper macro was introduced as part of the transition
- dnl # to have struct gendisk in struct bio.
- dnl #
--AC_DEFUN([ZFS_AC_KERNEL_BIO_SET_DEV], [
-+AC_DEFUN([ZFS_AC_KERNEL_BIO_SET_DEV_MACRO], [
- AC_MSG_CHECKING([whether bio_set_dev() exists])
- ZFS_LINUX_TRY_COMPILE([
- #include <linux/bio.h>
-@@ -20,3 +20,34 @@ AC_DEFUN([ZFS_AC_KERNEL_BIO_SET_DEV], [
- AC_MSG_RESULT(no)
- ])
- ])
-+
-+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_BIO_SET_DEV_GPL_ONLY], [
-+ AC_MSG_CHECKING([whether bio_set_dev() is GPL-only])
-+ ZFS_LINUX_TRY_COMPILE([
-+ #include <linux/module.h>
-+ #include <linux/bio.h>
-+ #include <linux/fs.h>
-+ MODULE_LICENSE("$ZFS_META_LICENSE");
-+ ],[
-+ struct block_device *bdev = NULL;
-+ struct bio *bio = NULL;
-+ bio_set_dev(bio, bdev);
-+ ],[
-+ AC_MSG_RESULT(no)
-+ ],[
-+ AC_MSG_RESULT(yes)
-+ AC_DEFINE(HAVE_BIO_SET_DEV_GPL_ONLY, 1,
-+ [bio_set_dev() GPL-only])
-+ ])
-+])
-+
-+AC_DEFUN([ZFS_AC_KERNEL_BIO_SET_DEV], [
-+ ZFS_AC_KERNEL_BIO_SET_DEV_MACRO
-+ ZFS_AC_KERNEL_BIO_SET_DEV_GPL_ONLY
-+])
-diff --git a/module/zfs/vdev_disk.c b/module/zfs/vdev_disk.c
-index c53a0aa0fcb..db765c57bb3 100644
---- a/module/zfs/vdev_disk.c
-+++ b/module/zfs/vdev_disk.c
-@@ -513,13 +513,38 @@ vdev_submit_bio_impl(struct bio *bio)
- #endif
- }
-
--#ifndef HAVE_BIO_SET_DEV
-+#ifdef HAVE_BIO_SET_DEV
-+#if defined(CONFIG_BLK_CGROUP) && defined(HAVE_BIO_SET_DEV_GPL_ONLY)
-+/*
-+ * The Linux 5.0 kernel updated the bio_set_dev() macro so it calls the
-+ * GPL-only bio_associate_blkg() symbol thus inadvertently converting
-+ * the entire macro. Provide a minimal version which always assigns the
-+ * request queue's root_blkg to the bio.
-+ */
-+static inline void
-+vdev_bio_associate_blkg(struct bio *bio)
-+{
-+ struct request_queue *q = bio->bi_disk->queue;
-+
-+ ASSERT3P(q, !=, NULL);
-+ ASSERT3P(q->root_blkg, !=, NULL);
-+ ASSERT3P(bio->bi_blkg, ==, NULL);
-+
-+ if (blkg_tryget(q->root_blkg))
-+ bio->bi_blkg = q->root_blkg;
-+}
-+#define bio_associate_blkg vdev_bio_associate_blkg
-+#endif
-+#else
-+/*
-+ * Provide a bio_set_dev() helper macro for pre-Linux 4.14 kernels.
-+ */
- static inline void
- bio_set_dev(struct bio *bio, struct block_device *bdev)
- {
- bio->bi_bdev = bdev;
- }
--#endif /* !HAVE_BIO_SET_DEV */
-+#endif /* HAVE_BIO_SET_DEV */
-
- static inline void
- vdev_submit_bio(struct bio *bio)
projects / packages / zfs.git / commitdiff