%global commit                  7e17a12d177a2a0fa68d9f490a1cc937ffab9d93

%global gittag                  6.1.2.41

%global shortcommit             %(c=%{commit}; echo ${c:0:7})

%define spec_release            5

%define kmod_name		kvdo

%define kmod_driver_version	%{gittag}

%define kmod_rpm_release	%{spec_release}

%define kmod_kernel_version	3.10.0-1025.el7

%define kmod_headers_version	%(rpm -qa kernel-devel | sed 's/^kernel-devel-//')

%define kmod_kbuild_dir		.

%define kmod_dependencies       %{nil}

%define kmod_build_dependencies	%{nil}

%define kmod_devel_package	0

Source0:	https://github.com/dm-vdo/%{kmod_name}/archive/%{commit}/%{kmod_name}-%{shortcommit}.tar.gz

%{nil}

%define findpat %( echo "%""P" )

%define __find_requires /usr/lib/rpm/redhat/find-requires.ksyms

%if 0%{?rhel}

# Fedora has deprecated this.

%define __find_provides /usr/lib/rpm/redhat/find-provides.ksyms %{kmod_name} %{?epoch:%{epoch}:}%{version}-%{release}

%endif

%define sbindir %( if [ -d "/sbin" -a \! -h "/sbin" ]; then echo "/sbin"; else echo %{_sbindir}; fi )

Name:		kmod-kvdo

Version:	%{kmod_driver_version}

Release:	%{kmod_rpm_release}%{?dist}

Summary:	Kernel Modules for Virtual Data Optimizer

License:	GPLv2+

URL:		http://github.com/dm-vdo/kvdo

BuildRoot:	%(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)

%if 0%{?fedora}

# Fedora requires elfutils-libelf-devel, while rhel does not.

BuildRequires:  elfutils-libelf-devel

%endif

BuildRequires:	glibc

%if 0%{?rhel}

# Fedora doesn't have abi whitelists.

BuildRequires:	kernel-abi-whitelists

%endif

BuildRequires:	kernel-devel >= %{kmod_kernel_version}

BuildRequires:  kernel-debug >= %{kmod_kernel_version}

BuildRequires:  libuuid-devel

BuildRequires:  redhat-rpm-config

ExclusiveArch:	x86_64

ExcludeArch:    s390

ExcludeArch:    s390x

ExcludeArch:    ppc

ExcludeArch:    ppc64

ExcludeArch:    ppc64le

ExcludeArch:    aarch64

ExcludeArch:    i686

%global kernel_source() /usr/src/kernels/%{kmod_headers_version}

%global _use_internal_dependency_generator 0

Provides:	kernel-modules = %{kmod_kernel_version}.%{_target_cpu}

Provides:	kmod-%{kmod_name} = %{?epoch:%{epoch}:}%{version}-%{release}

Requires(post):	%{sbindir}/weak-modules

Requires(postun):	%{sbindir}/weak-modules

Requires:	kernel >= %{kmod_kernel_version}

%if 0

Requires: firmware(%{kmod_name}) = ENTER_FIRMWARE_VERSION

%endif

%if "%{kmod_build_dependencies}" != ""

BuildRequires:  %{kmod_build_dependencies}

%endif

%if "%{kmod_dependencies}" != ""

Requires:       %{kmod_dependencies}

%endif

# if there are multiple kmods for the same driver from different vendors,

# they should conflict with each other.

Conflicts:	kmod-%{kmod_name}

%description

Virtual Data Optimizer (VDO) is a device mapper target that delivers

block-level deduplication, compression, and thin provisioning.

This package provides the kernel modules for VDO.

%pre

# During the install, check whether kvdo or uds is loaded.  A warning here

# indicates that a previous install was not completely removed.  This message

# is purely informational to the user.

for module in kvdo uds; do

  if grep -q "^${module}" /proc/modules; then

    if [ "${module}" == "kvdo" ]; then

      echo "WARNING: Found ${module} module previously loaded (Version: $(cat /sys/kvdo/version 2>/dev/null || echo Uknown)).  A reboot is recommended before attempting to use the newly installed module."

    else

      echo "WARNING: Found ${module} module previously loaded.  A reboot is recommended before attempting to use the newly installed module."

    fi

  fi

done

%if 0

%package -n kmod-kvdo-firmware

Version:	ENTER_FIRMWARE_VERSION

Summary:	Kernel Modules for Virtual Data Optimizer

Provides:	firmware(%{kmod_name}) = ENTER_FIRMWARE_VERSION

Provides:	kernel-modules = %{kmod_kernel_version}.%{_target_cpu}

%description -n  kmod-kvdo-firmware

Virtual Data Optimizer (VDO) is a device mapper target that delivers

block-level deduplication, compression, and thin provisioning.

This package provides the firmware for VDO.

%files -n kmod-kvdo-firmware

%defattr(644,root,root,755)

%{FIRMWARE_FILES}

%endif

# Development package

%if 0%{kmod_devel_package}

%package -n kmod-kvdo-devel

Version:	%{kmod_driver_version}

Requires:	kernel >= %{kmod_kernel_version}

Summary:	Kernel Modules for Virtual Data Optimizer

%description -n  kmod-kvdo-devel

Virtual Data Optimizer (VDO) is a device mapper target that delivers

block-level deduplication, compression, and thin provisioning.

This package provides the development files for VDO.

%files -n kmod-kvdo-devel

%defattr(644,root,root,755)

/usr/share/kmod-%{kmod_name}/Module.symvers

%endif

%post

modules=( $(find /lib/modules/%{kmod_headers_version}/extra/kmod-%{kmod_name} | grep '\.ko$') )

printf '%s\n' "${modules[@]}" >> /var/lib/rpm-kmod-posttrans-weak-modules-add

%pretrans -p <lua>

posix.unlink("/var/lib/rpm-kmod-posttrans-weak-modules-add")

%posttrans

if [ -f "/var/lib/rpm-kmod-posttrans-weak-modules-add" ]; then

	modules=( $(cat /var/lib/rpm-kmod-posttrans-weak-modules-add) )

	rm -rf /var/lib/rpm-kmod-posttrans-weak-modules-add

	printf '%s\n' "${modules[@]}" | %{sbindir}/weak-modules --add-modules

fi

%preun

rpm -ql kmod-kvdo-%{kmod_driver_version}-%{kmod_rpm_release}%{?dist}.$(arch) | grep '\.ko$' > /var/run/rpm-kmod-%{kmod_name}-modules

# Check whether kvdo or uds is loaded, and if so attempt to remove it.  A

# failure to unload means there is still something using the module.  To make

# sure the user is aware, we print a warning with recommended instructions.

for module in kvdo uds; do

  if grep -q "^${module}" /proc/modules; then

    warnMessage="WARNING: ${module} in use.  Changes will take effect after a reboot."

    modprobe -r ${module} 2>/dev/null || echo ${warnMessage} && /usr/bin/true

  fi

done

%postun

modules=( $(cat /var/run/rpm-kmod-%{kmod_name}-modules) )

rm /var/run/rpm-kmod-%{kmod_name}-modules

printf '%s\n' "${modules[@]}" | %{sbindir}/weak-modules --remove-modules

%files

%defattr(644,root,root,755)

/lib/modules/%{kmod_headers_version}

/etc/depmod.d/%{kmod_name}.conf

/usr/share/doc/kmod-%{kmod_name}/greylist.txt

%prep

%setup -n %{kmod_name}-%{commit}

%{nil}

set -- *

mkdir source

mv "$@" source/

mkdir obj

%build

rm -rf obj

cp -r source obj

make -C %{kernel_source} M=$PWD/obj/%{kmod_kbuild_dir} V=1 \

	NOSTDINC_FLAGS="-I $PWD/obj/include -I $PWD/obj/include/uapi"

# mark modules executable so that strip-to-file can strip them

find obj/%{kmod_kbuild_dir} -name "*.ko" -type f -exec chmod u+x '{}' +

whitelist="/lib/modules/kabi-current/kabi_whitelist_%{_target_cpu}"

for modules in $( find obj/%{kmod_kbuild_dir} -name "*.ko" -type f -printf "%{findpat}\n" | sed 's|\.ko$||' | sort -u ) ; do

	# update depmod.conf

	module_weak_path=$(echo $modules | sed 's/[\/]*[^\/]*$//')

	if [ -z "$module_weak_path" ]; then

		module_weak_path=%{name}

	else

		module_weak_path=%{name}/$module_weak_path

	fi

	echo "override $(echo $modules | sed 's/.*\///') $(echo %{kmod_headers_version} | sed 's/\.[^\.]*$//').* weak-updates/$module_weak_path" >> source/depmod.conf

	# update greylist

	nm -u obj/%{kmod_kbuild_dir}/$modules.ko | sed 's/.*U //' |  sed 's/^\.//' | sort -u | while read -r symbol; do

		grep -q "^\s*$symbol\$" $whitelist || echo "$symbol" >> source/greylist

	done

done

sort -u source/greylist | uniq > source/greylist.txt

%install

export INSTALL_MOD_PATH=$RPM_BUILD_ROOT

export INSTALL_MOD_DIR=extra/%{name}

make -C %{kernel_source} modules_install V=1 \

	M=$PWD/obj/%{kmod_kbuild_dir}

# Cleanup unnecessary kernel-generated module dependency files.

find $INSTALL_MOD_PATH/lib/modules -iname 'modules.*' -exec rm {} \;

install -m 644 -D source/depmod.conf $RPM_BUILD_ROOT/etc/depmod.d/%{kmod_name}.conf

install -m 644 -D source/greylist.txt $RPM_BUILD_ROOT/usr/share/doc/kmod-%{kmod_name}/greylist.txt

%if 0

%{FIRMWARE_FILES_INSTALL}

%endif

%if 0%{kmod_devel_package}

install -m 644 -D $PWD/obj/%{kmod_kbuild_dir}/Module.symvers $RPM_BUILD_ROOT/usr/share/kmod-%{kmod_name}/Module.symvers

%endif

%clean

rm -rf $RPM_BUILD_ROOT

%changelog

* Wed Mar 27 2019 - Andy Walsh <awalsh@redhat.com> 6.1.2.41-5

- Reduced and rate limited error logging in order to avoid kernel soft-lockups.

  - Resolves: rhbz#1687005

* Tue Mar 19 2019 - Andy Walsh <awalsh@redhat.com> 6.1.2.38-5

- Fixed more error path memory leaks.

  - Resolves: rhbz#1609426

- Rebased to version 6.2.0 of the UDS module

  - Resolves: rhbz#1637762

- Improved counting of dedupe timeouts by including in the count queries

  which are not made due to their being a lack of resources from previous

  queries taking too long.

  - Resolves: rhbz#1639898

- Fixed a NULL pointer dereference if dmeventd registration fails.

  - Resolves: rhbz#1640794

- Fixed a bug in the statistics tracking partial I/Os.

  - Resolves: rhbz#1594406

- Allowed VDO backing devices to be specified by major:minor device number.

  - Resolves: rhbz#1637762

- Suppressed egregious read-only error logging.

  - Resolves: rhbz#1687005

* Tue Sep 18 2018 - Andy Walsh <awalsh@redhat.com> 6.1.1.125-5

- Adjusted the warning when modules are found during install.

- Resolves: rhbz#1553420

* Fri Sep 14 2018 - Andy Walsh <awalsh@redhat.com> 6.1.1.125-4

- Attempt to unload modules and print a warning if unable to.

- Resolves: rhbz#1553420

- Fixed a hang when recovering a VDO volume with a physical size larger than

  16TB.

- Resolves: rhbz#1628316

* Wed Sep 05 2018 - Andy Walsh <awalsh@redhat.com> 6.1.1.120-3

- Rebuilt to work with kernel build

- Resolves: rhbz#1625555

* Sun Jul 29 2018 - Andy Walsh <awalsh@redhat.com> 6.1.1.120-2

- No longer attempt to unload modules in %preun

- Resolves: rhbz#1553420

- Improved memory allocation by not using the incorrect __GFP_NORETRY flag

  and by using the memalloc_noio_save mechanism.

- Resolves: rhbz#1571292

- Fixed a potential deadlock in the UDS index by using the kernel supplied

  struct callback instead of our own implementation of synchronous

  callbacks.

- Resolves: rhbz#1602151

- Fixed a potential stack overflow when reaping the recovery journal.

- Resolves: rhbz#1608070

- No longer attempt to unload modules in %preun

- Resolves: rhbz#1553420

- Improved safety around memory allocation permissions

- Resolves: rhbz#1595923

- Improved statistics accounting to allow for concurrent dedupe.

- Resolves: rhbz#1540722

* Sun Jul 15 2018 - Andy Walsh <awalsh@redhat.com> 6.1.1.111-1

- Added support for issuing fullness warnings via dmeventd

- rhbz#1519307

- Fixed a bug which would cause kernel panics when a VDO device is stacked on a

  RAID50 device.

- Resolves: rhbz#1593444

- Improved logging when growing the physical size of a VDO volume.

- Resolves: rhbz#1597890

- Resolves: rhbz#1597886

- Removed misleading log messages when rebuilding the UDS index.

- Resolves: rhbz#1599867

* Wed Jun 20 2018 - Andy Walsh <awalsh@redhat.com> 6.1.1.99-1

- Added /sys/kvdo/version which contains the currently loaded version of

  the kvdo module.

- Resolves: rhbz#1533950

- Added logging of normal operation when a VDO device starts normally.

- Resolves: rhbz#1520988

- Fixed a race in the UDS module which could cause the index to go offline.

- Resolves: rhbz#1520988

- Fixed a bug which would cause attempts to grow the physical size of a VDO

  device to fail if the device below the VDO was resized while the VDO was

  offline.

- Resolves: rhbz#1582647

- Fixed thread safety issues in the UDS page cache.

- Resolves: rhbz#1579492

- Modified the vdo script to not allow creation of a VDO device on top of an

  already running VDO device.

- Resolves: rhbz#1572640

- Fixed a bug which could cause data loss when discarding unused portions of a

  VDO's logical space.

- Resolves: rhbz#1589249

- Modified grow physical to fail in the prepare step if the size isn't

  changing, avoiding a suspend-and-resume cycle.

- Resolves: rhbz#1576539

* Fri May 11 2018 - Andy Walsh <awalsh@redhat.com> - 6.1.1.84-1

- Deleted unused UDS features.

- Improved performance of sub 4K writes.

- Simplified and improved performance of writes with FUA.

- Improved the accuracy of dedupe statistics.

- Made the MurmurHash3 implementation architecture independent.

- Fixed compilation errors on newer versions of GCC.

- Eliminated spurious allocation of a UDS sparse cache for dense indexes.

- Fixed a deadlock resulting from sleeping while holding a spinlock while

  getting statistics.

- Resvolves: rhbz#1562228

- Fixed bugs related to the timing of the creation and destruction of sysfs

  nodes relative to the creation and destruction of VDO data structures.

- Resolves: rhbz#1559692

- Fixed a bug which made deduplication impossible to disable.

- Removed obsolete code.

- Improved deduplication of concurrent requests containing the same data.

- Reduced unnecessary logging.

- Resolves: rhbz#1511127

- Removed the prepare_ioctl() function to avoid signature changes since

  this function currently does nothing.

- Resolves: rhbz#1568129

- Fixed a bug which made using a sparse index impossible to create.

- Resolves: rhbz#1570156

* Thu May 10 2018 - Andy Walsh <awalsh@redhat.com> - 6.1.1.24-1

- Rebased to 6.1.1 branch from github

- Resolves: rhbz#1576701

- Improved some error messages

* Tue Feb 27 2018 - Andy Walsh <awalsh@redhat.com> - 6.1.0.153-15

- Fixed preun handling of loaded modules

- Resolves: rhbz#1549178

* Fri Feb 16 2018 - Joseph Chapman <jochapma@redhat.com> - 6.1.0.149-13

- Sync mode is safe if underlying storage changes to requiring flushes

- Resolves: rhbz#1540777

* Wed Feb 07 2018 - Joseph Chapman <jochapma@redhat.com> - 6.1.0.146-13

- Module target is now "vdo" instead of "dedupe"

- Fixed a bug where crash recovery led to failed kernel page request

- Improved modification log messages

- Improved package description and summary fields

- Resolves: rhbz#1535127

- Resolves: rhbz#1535597

- Resolves: rhbz#1540696

- Resolves: rhbz#1541409

* Tue Feb 06 2018 - Andy Walsh <awalsh@redhat.com> - 6.1.0.144-13

- Updated summary and descriptions

- Resolves: rhbz#1541409

* Thu Feb 01 2018 - Joseph Chapman <jochapma@redhat.com> - 6.1.0.130-12

- Fix General Protection Fault unlocking UDS callback mutex

- Removing kmod-kvdo package unloads kernel module

- Fix URL to point to GitHub tree

- Resolves: rhbz#1510176

- Resolves: rhbz#1533260

- Resolves: rhbz#1539061

* Fri Jan 19 2018 - Joseph Chapman <jochapma@redhat.com> - 6.1.0.124-11

- Fixed provisional referencing for dedupe.

- Only log a bio submission from a VDO to itself.

- vdoformat cleans up metadata properly after fail.

- Resolves: rhbz#1511587

- Resolves: rhbz#1520972

- Resolves: rhbz#1532481

* Wed Jan 10 2018 - Joseph Chapman <jochapma@redhat.com> - 6.1.0.114-11

- /sys/uds permissions now resticted to superuser only

- Remove /sys/uds files that should not be used in production

- Removing kvdo module reports version

- VDO automatically chooses the proper write policy by default

- Fixed a Coverity-detected error path leak

- Resolves: rhbz#1525305

- Resolves: rhbz#1527734

- Resolves: rhbz#1527737

- Resolves: rhbz#1527924

- Resolves: rhbz#1528399

* Thu Dec 21 2017 - Joseph Chapman <jochapma@redhat.com> - 6.1.0.106-11

- Detect journal overflow after 160E of writes

- Clean up UDS threads when removing last VDO

- Resolves: rhbz#1512968

- Resolves: rhbz#1523240

* Tue Dec 12 2017 Joe Chapman <jochapma@redhat.com> 6.1.0.97-11

- Default logical size is no longer over-provisioned

- Remove debug logging when verifying dedupe advice

- Resolves: rhbz#1519330

* Fri Dec 08 2017 Joe Chapman <jochapma@redhat.com> 6.1.0.89-11

- improve metadata cleanup after vdoformat failure

- log REQ_FLUSH & REQ_FUA at level INFO

- improve performance of cuncurrent write requests with the same data

- Resolves: rhbz#1520972

- Resolves: rhbz#1521200

* Fri Dec 01 2017 Joe Chapman <jochapma@redhat.com> 6.1.0.72-10

- clear VDO metadata on a vdo remove call

- fix create of new dedupe indices

- add magic number to VDO geometry block

- do less logging when stopping a VDO

- add a UUID

- Resolves: rhbz#1512127

- Resolves: rhbz#1516081

- Resolves: rhbz#1511109

- Resolves: rhbz#1515183

* Fri Nov 17 2017 Joe Chapman <jochapma@redhat.com> 6.1.0.55-9

- fail loading an uncreated index more gracefully

- remove spurious/unnecessary files from the distribution

- fix kernel module version

- make logging less chatty

- fix an integer overflow in makeVDOLayout

- Resolves: rhbz#1511034

- Resolves: rhbz#1511109

- Resolves: rhbz#1511096

* Fri Nov 10 2017 Joe Chapman <jochapma@redhat.com> 6.1.0.44-8

- fix readCacheSize handling large numbers

- vdoformat signals error when it finds a geometry block

- prevent kernel oops when loading an old geometry block

- vdoformat silently rounds down physical sizes to a block boundary

- UDS threads identify related VDO device

- clean up contents of source tarballs

- Resolves: rhbz#1505936

- Resolves: rhbz#1507996

- Resolves: rhbz#1509466

- Resolves: rhbz#1510558

- Resolves: rhbz#1510585

- Resolves: rhbz#1511201

- Resolves: rhbz#1511209

* Fri Nov 03 2017 Joe Chapman <jochapma@redhat.com> 6.1.0.34-7

- Bugfixes

- Resolves: rhbz#1491422

* Mon Oct 30 2017 Joe Chapman <jochapma@redhat.com> 6.1.0.13-6

- Fixed some scanning tool complaints

- Resolves: rhbz#1491422

* Tue Oct 24 2017 Andy Walsh <awalsh@redhat.com> 6.1.0.0-6

- Fixed kernel requirement to allow subsequent releases without updating spec

- Resolves: rhbz#1491422

* Fri Oct 20 2017 John Wiele <jwiele@redhat.com> 6.1.0.0-5

- Bumped kernel requirement to 3.10.0-741

- Resolves: rhbz#1491422

* Tue Oct 17 2017 John Wiele <jwiele@redhat.com> 6.1.0.0-4

- Resolved some missing symbols

- Resolves: rhbz#1491422

* Mon Oct 16 2017 John Wiele <jwiele@redhat.com> 6.1.0.0-3

- Updated to provide a useable package

- Resolves: rhbz#1491422

* Sat Oct 14 2017 Andy Walsh <awalsh@redhat.com> 6.1.0.0-2

- Removed invalid requirement and some unnecessary comments in spec

- Resolves: rhbz#1491422

* Wed Oct 11 2017 John Wiele <jwiele@redhat.com> 6.1.0.0-1

- Initial vdo module for Driver Update Program

- Resolves: rhbz#1491422