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| author | Peter Zijlstra <peterz@infradead.org> | 2020-02-03 17:37:08 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-02-04 03:05:26 +0000 |
| commit | 580a586c409ab3040b7284a19cd9e281692c40c7 (patch) | |
| tree | a5122b8864be12bd79e342fa5412d7320dc6cc29 /include/asm-generic/tlb.h | |
| parent | 3af4bd033759c4dab4f0ff594f0aa1e8d182b9d7 (diff) | |
| download | lwn-580a586c409ab3040b7284a19cd9e281692c40c7.tar.gz lwn-580a586c409ab3040b7284a19cd9e281692c40c7.zip | |
asm-generic/tlb: rename HAVE_MMU_GATHER_NO_GATHER
Towards a more consistent naming scheme.
Link: http://lkml.kernel.org/r/20200116064531.483522-9-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>
Diffstat (limited to 'include/asm-generic/tlb.h')
| -rw-r--r-- | include/asm-generic/tlb.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index 53befa5acb27..ca0fe75b5355 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -143,6 +143,16 @@ * MMU_GATHER_NO_RANGE * * Use this if your architecture lacks an efficient flush_tlb_range(). + * + * MMU_GATHER_NO_GATHER + * + * If the option is set the mmu_gather will not track individual pages for + * delayed page free anymore. A platform that enables the option needs to + * provide its own implementation of the __tlb_remove_page_size() function to + * free pages. + * + * This is useful if your architecture already flushes TLB entries in the + * various ptep_get_and_clear() functions. */ #ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE @@ -202,7 +212,7 @@ extern void tlb_remove_table(struct mmu_gather *tlb, void *table); #endif /* CONFIG_MMU_GATHER_RCU_TABLE_FREE */ -#ifndef CONFIG_HAVE_MMU_GATHER_NO_GATHER +#ifndef CONFIG_MMU_GATHER_NO_GATHER /* * If we can't allocate a page to make a big batch of page pointers * to work on, then just handle a few from the on-stack structure. @@ -277,7 +287,7 @@ struct mmu_gather { unsigned int batch_count; -#ifndef CONFIG_HAVE_MMU_GATHER_NO_GATHER +#ifndef CONFIG_MMU_GATHER_NO_GATHER struct mmu_gather_batch *active; struct mmu_gather_batch local; struct page *__pages[MMU_GATHER_BUNDLE]; |