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-rw-r--r--pkgs/os-specific/linux/zfs/BACKPORT-Linux-5.8-compat-__vmalloc.patch154
1 files changed, 0 insertions, 154 deletions
diff --git a/pkgs/os-specific/linux/zfs/BACKPORT-Linux-5.8-compat-__vmalloc.patch b/pkgs/os-specific/linux/zfs/BACKPORT-Linux-5.8-compat-__vmalloc.patch
deleted file mode 100644
index 780ce83d84f..00000000000
--- a/pkgs/os-specific/linux/zfs/BACKPORT-Linux-5.8-compat-__vmalloc.patch
+++ /dev/null
@@ -1,154 +0,0 @@
-From 6cc95288ccea12ad7b67b2b5b3997dfad8e5b5c9 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Michael=20Niew=C3=B6hner?=
- <c0d3z3r0@users.noreply.github.com>
-Date: Tue, 9 Jun 2020 01:32:02 +0200
-Subject: [PATCH] BACKPORT: Linux 5.8 compat: __vmalloc()
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-The `pgprot` argument has been removed from `__vmalloc` in Linux 5.8,
-being `PAGE_KERNEL` always now [1].
-
-Detect this during configure and define a wrapper for older kernels.
-
-[1] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/mm/vmalloc.c?h=next-20200605&id=88dca4ca5a93d2c09e5bbc6a62fbfc3af83c4fca
-
-Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
-Co-authored-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
-Co-authored-by: Michael Niewöhner <foss@mniewoehner.de>
-Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
-Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
-Closes #10422
----
- config/kernel-kmem.m4       | 26 ++++++++++++++++++++++++++
- config/kernel.m4            |  2 ++
- include/spl/sys/kmem.h      |  9 +++++++++
- module/spl/spl-kmem-cache.c |  4 ++--
- module/spl/spl-kmem.c       |  9 ++++-----
- 5 files changed, 43 insertions(+), 7 deletions(-)
-
-diff --git a/config/kernel-kmem.m4 b/config/kernel-kmem.m4
-index cc055e530..f1c0d2412 100644
---- a/config/kernel-kmem.m4
-+++ b/config/kernel-kmem.m4
-@@ -56,3 +56,29 @@ AC_DEFUN([SPL_AC_DEBUG_KMEM_TRACKING], [
- 	AC_MSG_CHECKING([whether detailed kmem tracking is enabled])
- 	AC_MSG_RESULT([$enable_debug_kmem_tracking])
- ])
-+
-+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 --git a/config/kernel.m4 b/config/kernel.m4
-index b67fcef8c..23edfdcd8 100644
---- a/config/kernel.m4
-+++ b/config/kernel.m4
-@@ -45,6 +45,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [
- 	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 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [
- 	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
-diff --git a/include/spl/sys/kmem.h b/include/spl/sys/kmem.h
-index 72d3a7765..ca15bfe7f 100644
---- a/include/spl/sys/kmem.h
-+++ b/include/spl/sys/kmem.h
-@@ -169,6 +169,15 @@ extern void *spl_kmem_alloc(size_t sz, int fl, const char *func, int line);
- extern void *spl_kmem_zalloc(size_t sz, int fl, const char *func, int line);
- 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.
-  */
-diff --git a/module/spl/spl-kmem-cache.c b/module/spl/spl-kmem-cache.c
-index d71b4b348..4866b2993 100644
---- a/module/spl/spl-kmem-cache.c
-+++ b/module/spl/spl-kmem-cache.c
-@@ -203,7 +203,7 @@ kv_alloc(spl_kmem_cache_t *skc, int size, int flags)
- 		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 @@ spl_cache_grow(spl_kmem_cache_t *skc, int flags, void **obj)
- 	 * 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 --git a/module/spl/spl-kmem.c b/module/spl/spl-kmem.c
-index cee69ad43..ca1fc145f 100644
---- a/module/spl/spl-kmem.c
-+++ b/module/spl/spl-kmem.c
-@@ -172,16 +172,15 @@ spl_kmem_alloc_impl(size_t size, int flags, int node)
- 		 * kmem_zalloc() callers.
- 		 *
- 		 * For vmem_alloc() and vmem_zalloc() callers it is permissible
--		 * to use __vmalloc().  However, in general use of __vmalloc()
--		 * is strongly discouraged because a global lock must be
--		 * acquired.  Contention on this lock can significantly
-+		 * 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
- 		 * address space is strongly discouraged.
- 		 */
- 		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);
- 			}
--- 
-2.25.1
-