8 files changed, 168 insertions, 0 deletions
diff --git a/personal/zfs/build b/personal/zfs/build
new file mode 100755
index 0000000..c09016d
--- /dev/null
+++ b/personal/zfs/build
@@ -0,0 +1,35 @@
+#!/bin/sh -e
+# Build script originally taken from github.com/jedavies-dev/kiss-zfs
+# Patched to work with the latest kernel, better directory management etc.
+
+patch -p1 < linux5.8.patch
+
+sed -i 's/CDDL/GPL/g' META
+
+./configure \
+    --prefix=/usr \
+    --sysconfdir=/etc \
+    --sbindir=/usr/bin \
+    --disable-systemd \
+    --disable-sysvinit \
+    --disable-nls \
+    --enable-linux-builtin \
+    --with-linux="/usr/lib/modules/${KERNEL_VERSION:-$(uname -r)}/build"
+
+make
+make DESTDIR="$1" install
+
+cd module
+make
+make DESTDIR="$1/usr" install
+
+# Holy hell zfs is insistent on not installing files where I want them to be
+# installed.
+mv "$1/lib/udev" "$1/usr/lib"
+mv "$1/sbin/mount.zfs" "$1/usr/bin/mount.zfs"
+rm -r "$1/sbin" "$1/lib"
+
+rm -rf "$1/usr/share/zfs/zfs-tests" \
+       "$1/usr/lib/dracut" \
+       "$1/usr/share/initramfs-tools"
+
diff --git a/personal/zfs/checksums b/personal/zfs/checksums
new file mode 100644
index 0000000..24b95d4
--- /dev/null
+++ b/personal/zfs/checksums
@@ -0,0 +1,2 @@
+2b988f5777976f09d08083f6bebf6e67219c4c4c183c1f33033fb7e5e5eacafb  zfs-0.8.4.tar.gz
+fd453c8a97c1e55ff8a4dfb4f6aefafa891d959f27c2130b2b848d899c2ef8a9  linux5.8.patch
diff --git a/personal/zfs/depends b/personal/zfs/depends
new file mode 100644
index 0000000..4647d5c
--- /dev/null
+++ b/personal/zfs/depends
@@ -0,0 +1 @@
+libtirpc
diff --git a/personal/zfs/message b/personal/zfs/message
new file mode 100644
index 0000000..193f7b3
--- /dev/null
+++ b/personal/zfs/message
@@ -0,0 +1,6 @@
+[1mIMPORTANT[m
+
+    You will need to rebuild this package for everytime you upgrade the kernel.
+    You can specify a KERNEL_VERSION variable in order to build without the need
+    to reboot before building.
+
diff --git a/personal/zfs/patches/linux5.8.patch b/personal/zfs/patches/linux5.8.patch
new file mode 100644
index 0000000..a05cd4f
--- /dev/null
+++ b/personal/zfs/patches/linux5.8.patch
@@ -0,0 +1,119 @@
+diff -ur a/config/kernel.m4 b/config/kernel.m4
+--- a/config/kernel.m4	2020-05-05 12:56:29.709370875 -0400
++++ b/config/kernel.m4	2020-08-12 10:38:58.842672016 -0400
+@@ -45,6 +45,7 @@
+ 	ZFS_AC_KERNEL_SRC_SCHED
+ 	ZFS_AC_KERNEL_SRC_USLEEP_RANGE
+ 	ZFS_AC_KERNEL_SRC_KMEM_CACHE
++	ZFS_AC_KERNEL_SRC_VMALLOC_PAGE_KERNEL
+ 	ZFS_AC_KERNEL_SRC_WAIT
+ 	ZFS_AC_KERNEL_SRC_INODE_TIMES
+ 	ZFS_AC_KERNEL_SRC_INODE_LOCK
+@@ -163,6 +164,7 @@
+ 	ZFS_AC_KERNEL_SCHED
+ 	ZFS_AC_KERNEL_USLEEP_RANGE
+ 	ZFS_AC_KERNEL_KMEM_CACHE
++	ZFS_AC_KERNEL_VMALLOC_PAGE_KERNEL
+ 	ZFS_AC_KERNEL_WAIT
+ 	ZFS_AC_KERNEL_INODE_TIMES
+ 	ZFS_AC_KERNEL_INODE_LOCK
+@@ -894,3 +896,28 @@
+ 	    [test -f build/conftest/conftest.ko],
+ 	    [$3], [$4], [$5])
+ ])
++
++dnl #
++dnl # 5.8 API,
++dnl # __vmalloc PAGE_KERNEL removal
++dnl #
++AC_DEFUN([ZFS_AC_KERNEL_SRC_VMALLOC_PAGE_KERNEL], [
++	ZFS_LINUX_TEST_SRC([__vmalloc], [
++		#include <linux/mm.h>
++		#include <linux/vmalloc.h>
++	],[
++		void *p __attribute__ ((unused));
++
++		p = __vmalloc(0, GFP_KERNEL, PAGE_KERNEL);
++	])
++])
++
++AC_DEFUN([ZFS_AC_KERNEL_VMALLOC_PAGE_KERNEL], [
++	AC_MSG_CHECKING([whether __vmalloc(ptr, flags, pageflags) is available])
++	ZFS_LINUX_TEST_RESULT([__vmalloc], [
++		AC_MSG_RESULT(yes)
++		AC_DEFINE(HAVE_VMALLOC_PAGE_KERNEL, 1, [__vmalloc page flags exists])
++	],[
++		AC_MSG_RESULT(no)
++	])
++])
+diff -ur a/include/spl/sys/kmem.h b/include/spl/sys/kmem.h
+--- a/include/spl/sys/kmem.h	2020-05-05 12:56:29.717370676 -0400
++++ b/include/spl/sys/kmem.h	2020-08-12 10:41:20.253453058 -0400
+@@ -170,6 +170,15 @@
+ extern void spl_kmem_free(const void *ptr, size_t sz);
+ 
+ /*
++ * 5.8 API change, pgprot_t argument removed.
++ */
++#ifdef HAVE_VMALLOC_PAGE_KERNEL
++#define spl_vmalloc(size, flags) __vmalloc(size, flags, PAGE_KERNEL)
++#else
++#define spl_vmalloc(size, flags) __vmalloc(size, flags)
++#endif
++
++/*
+  * The following functions are only available for internal use.
+  */
+ extern void *spl_kmem_alloc_impl(size_t size, int flags, int node);
+diff -ur a/module/spl/spl-kmem-cache.c b/module/spl/spl-kmem-cache.c
+--- a/module/spl/spl-kmem-cache.c	2020-05-05 12:57:28.442960922 -0400
++++ b/module/spl/spl-kmem-cache.c	2020-08-12 10:38:58.843672014 -0400
+@@ -203,7 +203,7 @@
+ 		ASSERT(ISP2(size));
+ 		ptr = (void *)__get_free_pages(lflags, get_order(size));
+ 	} else {
+-		ptr = __vmalloc(size, lflags | __GFP_HIGHMEM, PAGE_KERNEL);
++		ptr = spl_vmalloc(size, lflags | __GFP_HIGHMEM);
+ 	}
+ 
+ 	/* Resulting allocated memory will be page aligned */
+@@ -1242,7 +1242,7 @@
+ 	 * allocation.
+ 	 *
+ 	 * However, this can't be applied to KVM_VMEM due to a bug that
+-	 * __vmalloc() doesn't honor gfp flags in page table allocation.
++	 * spl_vmalloc() doesn't honor gfp flags in page table allocation.
+ 	 */
+ 	if (!(skc->skc_flags & KMC_VMEM)) {
+ 		rc = __spl_cache_grow(skc, flags | KM_NOSLEEP);
+diff -ur a/module/spl/spl-kmem.c b/module/spl/spl-kmem.c
+--- a/module/spl/spl-kmem.c	2020-05-05 12:57:28.442960922 -0400
++++ b/module/spl/spl-kmem.c	2020-08-12 10:38:58.843672014 -0400
+@@ -172,7 +172,7 @@
+ 		 * kmem_zalloc() callers.
+ 		 *
+ 		 * For vmem_alloc() and vmem_zalloc() callers it is permissible
+-		 * to use __vmalloc().  However, in general use of __vmalloc()
++		 * to use spl_vmalloc().  However, in general use of spl_vmalloc()
+ 		 * is strongly discouraged because a global lock must be
+ 		 * acquired.  Contention on this lock can significantly
+ 		 * impact performance so frequently manipulating the virtual
+@@ -180,8 +180,7 @@
+ 		 */
+ 		if ((size > spl_kmem_alloc_max) || use_vmem) {
+ 			if (flags & KM_VMEM) {
+-				ptr = __vmalloc(size, lflags | __GFP_HIGHMEM,
+-				    PAGE_KERNEL);
++				ptr = spl_vmalloc(size, lflags | __GFP_HIGHMEM);
+ 			} else {
+ 				return (NULL);
+ 			}
+@@ -194,7 +193,7 @@
+ 
+ 		/*
+ 		 * For vmem_alloc() and vmem_zalloc() callers retry immediately
+-		 * using __vmalloc() which is unlikely to fail.
++		 * using spl_vmalloc() which is unlikely to fail.
+ 		 */
+ 		if ((flags & KM_VMEM) && (use_vmem == 0))  {
+ 			use_vmem = 1;
diff --git a/personal/zfs/post-install b/personal/zfs/post-install
new file mode 100755
index 0000000..5173fca
--- /dev/null
+++ b/personal/zfs/post-install
@@ -0,0 +1,2 @@
+#!/bin/sh
+depmod -b "/usr/lib/modules/${KERNEL_VERSION:-$(uname -r)}"
diff --git a/personal/zfs/sources b/personal/zfs/sources
new file mode 100644
index 0000000..ceedffc
--- /dev/null
+++ b/personal/zfs/sources
@@ -0,0 +1,2 @@
+https://github.com/zfsonlinux/zfs/releases/download/zfs-0.8.4/zfs-0.8.4.tar.gz
+patches/linux5.8.patch
diff --git a/personal/zfs/version b/personal/zfs/version
new file mode 100644
index 0000000..e8412c2
--- /dev/null
+++ b/personal/zfs/version
@@ -0,0 +1 @@
+0.8.4 1