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authorAnshuman Khandual <anshuman.khandual@arm.com>2020-08-07 09:19:28 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-07 21:33:23 +0300
commitb1d00007f2126e045c465daf754df43ba74ddcdd (patch)
tree6a9e130e3e4ece3b4cbbb9b54374b2978ec9a2ae /mm/debug_vm_pgtable.c
parent6315df41afccf12a468ba0b17188d60b26009bc2 (diff)
downloadlinux-b1d00007f2126e045c465daf754df43ba74ddcdd.tar.xz
Documentation/mm: add descriptions for arch page table helpers
This adds a specific description file for all arch page table helpers which is in sync with the semantics being tested via CONFIG_DEBUG_VM_PGTABLE. All future changes either to these descriptions here or the debug test should always remain in sync. [anshuman.khandual@arm.com: fold in Mike's patch for the rst document, fix typos in the rst document] Link: http://lkml.kernel.org/r/1594610587-4172-5-git-send-email-anshuman.khandual@arm.com Suggested-by: Mike Rapoport <rppt@kernel.org> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Zi Yan <ziy@nvidia.com> Link: http://lkml.kernel.org/r/1593996516-7186-5-git-send-email-anshuman.khandual@arm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/debug_vm_pgtable.c')
-rw-r--r--mm/debug_vm_pgtable.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c
index 8d389d071968..086309fb9b6f 100644
--- a/mm/debug_vm_pgtable.c
+++ b/mm/debug_vm_pgtable.c
@@ -31,6 +31,12 @@
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>
+/*
+ * Please refer Documentation/vm/arch_pgtable_helpers.rst for the semantics
+ * expectations that are being validated here. All future changes in here
+ * or the documentation need to be in sync.
+ */
+
#define VMFLAGS (VM_READ|VM_WRITE|VM_EXEC)
/*