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asm-generic/tlb: rename HAVE_RCU_TABLE_FREE

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Towards a more consistent naming scheme.

[akpm@linux-foundation.org: fix sparc64 Kconfig]
Link: http://lkml.kernel.org/r/20200116064531.483522-7-aneesh.kumar@linux.ibm.com
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Park Ju Hyung <qkrwngud825@gmail.com>
Signed-off-by: Alex Winkowski <dereference23@outlook.com>

Change-Id: I9c91c267b3f7cf3c37297323156445a526c107f8
Signed-off-by: Forenche <prahul2003@gmail.com>
This commit is contained in:
Peter Zijlstra 2020-02-03 17:37:02 -08:00 committed by Forenche
parent 513bce3228
commit 8658eb3a4c
No known key found for this signature in database
GPG Key ID: 1337D655BAFE85E2
5 changed files with 12 additions and 12 deletions
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2
arch/Kconfig
View File

@ -336,7 +336,7 @@ config HAVE_ARCH_JUMP_LABEL
config HAVE_ARCH_JUMP_LABEL_RELATIVE
bool
config HAVE_RCU_TABLE_FREE
config MMU_GATHER_RCU_TABLE_FREE
bool
config HAVE_MMU_GATHER_PAGE_SIZE

2
arch/arm64/Kconfig
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@ -135,7 +135,7 @@ config ARM64
select HAVE_PERF_REGS
select HAVE_PERF_USER_STACK_DUMP
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_RCU_TABLE_FREE
select MMU_GATHER_RCU_TABLE_FREE
select HAVE_SYSCALL_TRACEPOINTS
select HAVE_KPROBES
select HAVE_KRETPROBES

10
include/asm-generic/tlb.h
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@ -121,7 +121,7 @@
* This ensures we call tlb_flush() every time tlb_change_page_size() actually
* changes the size and provides mmu_gather::page_size to tlb_flush().
*
* HAVE_RCU_TABLE_FREE
* MMU_GATHER_RCU_TABLE_FREE
*
* This provides tlb_remove_table(), to be used instead of tlb_remove_page()
* for page directores (__p*_free_tlb()). This provides separate freeing of
@ -137,7 +137,7 @@
* Use this if your architecture lacks an efficient flush_tlb_range().
*/
#ifdef CONFIG_HAVE_RCU_TABLE_FREE
#ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE
/*
* Semi RCU freeing of the page directories.
*
@ -188,10 +188,10 @@ extern void tlb_remove_table(struct mmu_gather *tlb, void *table);
#else
#ifdef tlb_needs_table_invalidate
#error tlb_needs_table_invalidate() requires HAVE_RCU_TABLE_FREE
#error tlb_needs_table_invalidate() requires MMU_GATHER_RCU_TABLE_FREE
#endif
#endif /* CONFIG_HAVE_RCU_TABLE_FREE */
#endif /* CONFIG_MMU_GATHER_RCU_TABLE_FREE */
#ifndef CONFIG_HAVE_MMU_GATHER_NO_GATHER
@ -230,7 +230,7 @@ extern bool __tlb_remove_page_size(struct mmu_gather *tlb, struct page *page,
struct mmu_gather {
struct mm_struct *mm;
#ifdef CONFIG_HAVE_RCU_TABLE_FREE
#ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE
struct mmu_table_batch *batch;
#endif

2
mm/gup.c
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@ -1347,7 +1347,7 @@ struct page *get_dump_page(unsigned long addr)
* Before activating this code, please be aware that the following assumptions
* are currently made:
*
* *) Either HAVE_RCU_TABLE_FREE is enabled, and tlb_remove_table() is used to
* *) Either MMU_GATHER_RCU_TABLE_FREE is enabled, and tlb_remove_table() is used to
* free pages containing page tables or TLB flushing requires IPI broadcast.
*
* *) ptes can be read atomically by the architecture.

8
mm/mmu_gather.c
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@ -91,7 +91,7 @@ bool __tlb_remove_page_size(struct mmu_gather *tlb, struct page *page, int page_
#endif /* HAVE_MMU_GATHER_NO_GATHER */
#ifdef CONFIG_HAVE_RCU_TABLE_FREE
#ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE
/*
* See the comment near struct mmu_table_batch.
@ -173,11 +173,11 @@ void tlb_remove_table(struct mmu_gather *tlb, void *table)
tlb_table_flush(tlb);
}
#endif /* CONFIG_HAVE_RCU_TABLE_FREE */
#endif /* CONFIG_MMU_GATHER_RCU_TABLE_FREE */
static void tlb_flush_mmu_free(struct mmu_gather *tlb)
{
#ifdef CONFIG_HAVE_RCU_TABLE_FREE
#ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE
tlb_table_flush(tlb);
#endif
#ifndef CONFIG_HAVE_MMU_GATHER_NO_GATHER
@ -220,7 +220,7 @@ void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
tlb->batch_count = 0;
#endif
#ifdef CONFIG_HAVE_RCU_TABLE_FREE
#ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE
tlb->batch = NULL;
#endif
#ifdef CONFIG_HAVE_MMU_GATHER_PAGE_SIZE