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authorPeter Zijlstra <peterz@infradead.org>2018-08-31 15:46:08 +0300
committerIngo Molnar <mingo@kernel.org>2019-04-03 11:32:40 +0300
commited6a79352cad00e9a49d6e438be40e45107207bf (patch)
treea1ed733ba7eacb57d93e6bb825a24b63769a11c9 /mm/mmu_gather.c
parentdea2434c23c102b3e7d320849ec1cfeb432edb60 (diff)
downloadlinux-ed6a79352cad00e9a49d6e438be40e45107207bf.tar.xz
asm-generic/tlb, arch: Provide CONFIG_HAVE_MMU_GATHER_PAGE_SIZE
Move the mmu_gather::page_size things into the generic code instead of PowerPC specific bits. No change in behavior intended. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Will Deacon <will.deacon@arm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Nick Piggin <npiggin@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@surriel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/mmu_gather.c')
-rw-r--r--mm/mmu_gather.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/mm/mmu_gather.c b/mm/mmu_gather.c
index f2f03c655807..14dfc97155e4 100644
--- a/mm/mmu_gather.c
+++ b/mm/mmu_gather.c
@@ -58,7 +58,9 @@ void arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
#ifdef CONFIG_HAVE_RCU_TABLE_FREE
tlb->batch = NULL;
#endif
+#ifdef CONFIG_HAVE_MMU_GATHER_PAGE_SIZE
tlb->page_size = 0;
+#endif
__tlb_reset_range(tlb);
}
@@ -121,7 +123,10 @@ bool __tlb_remove_page_size(struct mmu_gather *tlb, struct page *page, int page_
struct mmu_gather_batch *batch;
VM_BUG_ON(!tlb->end);
+
+#ifdef CONFIG_HAVE_MMU_GATHER_PAGE_SIZE
VM_WARN_ON(tlb->page_size != page_size);
+#endif
batch = tlb->active;
/*