The patch titled
Subject: mm: define MADV_FREE for some arches
has been added to the -mm tree. Its filename is
mm-support-madvisemadv_free-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-support-madvisemadv_free-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-support-madvisemadv_free-fix.patch
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------------------------------------------------------
From: Minchan Kim <minchan@xxxxxxxxxx>
Subject: mm: define MADV_FREE for some arches
Most architectures use asm-generic, but alpha, mips, parisc, xtensa
need their own definitions.
This patch defines MADV_FREE for them so it should fix build break
for their architectures.
Maybe, I should split and feed piecies to arch maintainers but
included here for mmotm convenience.
Signed-off-by: Minchan Kim <minchan@xxxxxxxxxx>
Reported-by: kbuild test robot <fengguang.wu@xxxxxxxxx>
Cc: Michael Kerrisk <mtk.manpages@xxxxxxxxx>
Cc: Richard Henderson <rth@xxxxxxxxxxx>
Cc: Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx>
Cc: "James E.J. Bottomley" <jejb@xxxxxxxxxxxxxxxx>
Cc: Helge Deller <deller@xxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: Chris Zankel <chris@xxxxxxxxxx>
Acked-by: Max Filippov <jcmvbkbc@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/alpha/include/uapi/asm/mman.h | 1 +
arch/mips/include/uapi/asm/mman.h | 1 +
arch/parisc/include/uapi/asm/mman.h | 1 +
arch/xtensa/include/uapi/asm/mman.h | 1 +
4 files changed, 4 insertions(+)
diff -puN arch/alpha/include/uapi/asm/mman.h~mm-support-madvisemadv_free-fix arch/alpha/include/uapi/asm/mman.h
--- a/arch/alpha/include/uapi/asm/mman.h~mm-support-madvisemadv_free-fix
+++ a/arch/alpha/include/uapi/asm/mman.h
@@ -44,6 +44,7 @@
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_SPACEAVAIL 5 /* ensure resources are available */
#define MADV_DONTNEED 6 /* don't need these pages */
+#define MADV_FREE 7 /* free pages only if memory pressure */
/* common/generic parameters */
#define MADV_REMOVE 9 /* remove these pages & resources */
diff -puN arch/mips/include/uapi/asm/mman.h~mm-support-madvisemadv_free-fix arch/mips/include/uapi/asm/mman.h
--- a/arch/mips/include/uapi/asm/mman.h~mm-support-madvisemadv_free-fix
+++ a/arch/mips/include/uapi/asm/mman.h
@@ -67,6 +67,7 @@
#define MADV_SEQUENTIAL 2 /* expect sequential page references */
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_DONTNEED 4 /* don't need these pages */
+#define MADV_FREE 5 /* free pages only if memory pressure */
/* common parameters: try to keep these consistent across architectures */
#define MADV_REMOVE 9 /* remove these pages & resources */
diff -puN arch/parisc/include/uapi/asm/mman.h~mm-support-madvisemadv_free-fix arch/parisc/include/uapi/asm/mman.h
--- a/arch/parisc/include/uapi/asm/mman.h~mm-support-madvisemadv_free-fix
+++ a/arch/parisc/include/uapi/asm/mman.h
@@ -40,6 +40,7 @@
#define MADV_SPACEAVAIL 5 /* insure that resources are reserved */
#define MADV_VPS_PURGE 6 /* Purge pages from VM page cache */
#define MADV_VPS_INHERIT 7 /* Inherit parents page size */
+#define MADV_FREE 8 /* free pages only if memory pressure */
/* common/generic parameters */
#define MADV_REMOVE 9 /* remove these pages & resources */
diff -puN arch/xtensa/include/uapi/asm/mman.h~mm-support-madvisemadv_free-fix arch/xtensa/include/uapi/asm/mman.h
--- a/arch/xtensa/include/uapi/asm/mman.h~mm-support-madvisemadv_free-fix
+++ a/arch/xtensa/include/uapi/asm/mman.h
@@ -74,6 +74,7 @@
#define MADV_SEQUENTIAL 2 /* expect sequential page references */
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_DONTNEED 4 /* don't need these pages */
+#define MADV_FREE 5 /* free pages only if memory pressure */
/* common parameters: try to keep these consistent across architectures */
#define MADV_REMOVE 9 /* remove these pages & resources */
_
Patches currently in -mm which might be from minchan@xxxxxxxxxx are
mm-frontswap-invalidate-expired-data-on-a-dup-store-failure.patch
mm-compaction-pass-classzone_idx-and-alloc_flags-to-watermark-checking.patch
mm-compaction-pass-classzone_idx-and-alloc_flags-to-watermark-checking-fix.patch
mm-compaction-simplify-deferred-compaction.patch
mm-compaction-defer-only-on-compact_complete.patch
mm-compaction-always-update-cached-scanner-positions.patch
mm-compaction-always-update-cached-scanner-positions-fix.patch
mm-compaction-more-focused-lru-and-pcplists-draining.patch
mm-compaction-more-focused-lru-and-pcplists-draining-fix.patch
mm-page_isolation-check-pfn-validity-before-access.patch
mm-support-madvisemadv_free.patch
mm-support-madvisemadv_free-fix.patch
x86-add-pmd_-for-thp.patch
x86-add-pmd_-for-thp-fix.patch
sparc-add-pmd_-for-thp.patch
sparc-add-pmd_-for-thp-fix.patch
powerpc-add-pmd_-for-thp.patch
arm-add-pmd_mkclean-for-thp.patch
arm64-add-pmd_-for-thp.patch
mm-dont-split-thp-page-when-syscall-is-called.patch
mm-page_ext-resurrect-struct-page-extending-code-for-debugging.patch
mm-debug-pagealloc-prepare-boottime-configurable-on-off.patch
mm-debug-pagealloc-make-debug-pagealloc-boottime-configurable.patch
mm-nommu-use-alloc_pages_exact-rather-than-its-own-implementation.patch
stacktrace-introduce-snprint_stack_trace-for-buffer-output.patch
mm-page_owner-keep-track-of-page-owners.patch
mm-page_owner-correct-owner-information-for-early-allocated-pages.patch
documentation-add-new-page_owner-document.patch
zsmalloc-merge-size_class-to-reduce-fragmentation.patch
zram-remove-bio-parameter-from-zram_bvec_rw.patch
zram-change-parameter-from-vaild_io_request.patch
zram-implement-rw_page-operation-of-zram.patch
zram-implement-rw_page-operation-of-zram-fix.patch
zram-implement-rw_page-operation-of-zram-fix-2.patch
zram-implement-rw_page-operation-of-zram-fix-2-cleanup.patch
zram-implement-rw_page-operation-of-zram-fix-3.patch
zsmalloc-fix-zs_init-cpu-notifier-error-handling.patch
zsmalloc-fix-zs_init-cpu-notifier-error-handling-fix-2.patch
zsmalloc-fix-zs_init-cpu-notifier-error-handling-fix.patch
zsmalloc-correct-fragile-_atomic-use.patch
mm-zsmalloc-support-allocating-obj-with-size-of-zs_max_alloc_size.patch
mm-zram-correct-zram_zero-flag-bit-position.patch
mm-zsmalloc-avoid-duplicate-assignment-of-prev_class.patch
mm-zsmalloc-avoid-duplicate-assignment-of-prev_class-fix.patch
mm-zswap-add-__init-to-some-functions-in-zswap.patch
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