* Patch "powerpc/mm: Fix build break when CMA=n && SPAPR_TCE_IOMMU=y" has been added to the 4.10-stable tree
@ 2017-05-09 9:20 gregkh
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From: gregkh @ 2017-05-09 9:20 UTC (permalink / raw)
To: mpe, gregkh; +Cc: stable, stable-commits
This is a note to let you know that I've just added the patch titled
powerpc/mm: Fix build break when CMA=n && SPAPR_TCE_IOMMU=y
to the 4.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
powerpc-mm-fix-build-break-when-cma-n-spapr_tce_iommu-y.patch
and it can be found in the queue-4.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From a05ef161cdd22faccffe06f21fc8f1e249565385 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <mpe@ellerman.id.au>
Date: Tue, 14 Feb 2017 13:44:05 +1100
Subject: powerpc/mm: Fix build break when CMA=n && SPAPR_TCE_IOMMU=y
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From: Michael Ellerman <mpe@ellerman.id.au>
commit a05ef161cdd22faccffe06f21fc8f1e249565385 upstream.
Currently the build breaks if CMA=n and SPAPR_TCE_IOMMU=y:
arch/powerpc/mm/mmu_context_iommu.c: In function ‘mm_iommu_get’:
arch/powerpc/mm/mmu_context_iommu.c:193:42: error: ‘MIGRATE_CMA’ undeclared (first use in this function)
if (get_pageblock_migratetype(page) == MIGRATE_CMA) {
^~~~~~~~~~~
Fix it by using the existing is_migrate_cma_page(), which evaulates to
false when CMA=n.
Fixes: 2e5bbb5461f1 ("KVM: PPC: Book3S HV: Migrate pinned pages out of CMA")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/powerpc/mm/mmu_context_iommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/powerpc/mm/mmu_context_iommu.c
+++ b/arch/powerpc/mm/mmu_context_iommu.c
@@ -184,7 +184,7 @@ long mm_iommu_get(struct mm_struct *mm,
* of the CMA zone if possible. NOTE: faulting in + migration
* can be expensive. Batching can be considered later
*/
- if (get_pageblock_migratetype(page) == MIGRATE_CMA) {
+ if (is_migrate_cma_page(page)) {
if (mm_iommu_move_page_from_cma(page))
goto populate;
if (1 != get_user_pages_fast(ua + (i << PAGE_SHIFT),
Patches currently in stable-queue which might be from mpe@ellerman.id.au are
queue-4.10/powerpc-mm-fix-build-break-when-cma-n-spapr_tce_iommu-y.patch
queue-4.10/powerpc-perf-handle-sdar_mode-for-marked-event-in-power9.patch
queue-4.10/powerpc-perf-avoid-fab_-_match-checks-for-power9.patch
queue-4.10/powerpc-mm-fixup-wrong-lpcr_vrmasd-value.patch
queue-4.10/powerpc-correctly-disable-latent-entropy-gcc-plugin-on-prom_init.o.patch
queue-4.10/powerpc-ftrace-fix-confusing-help-text-for-disable_mprofile_kernel.patch
queue-4.10/powerpc-powernv-fix-opal_exit-tracepoint-opcode.patch
queue-4.10/powerpc-perf-fix-perf_get_data_addr-for-power9-dd1.patch
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2017-05-09 9:20 Patch "powerpc/mm: Fix build break when CMA=n && SPAPR_TCE_IOMMU=y" has been added to the 4.10-stable tree gregkh
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