diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-11-09 12:30:50 -0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-11-30 15:58:50 -0800 |
| commit | 7cc8f9c7146a5c2dad6e71653c4f69972e73df6b (patch) | |
| tree | c5ef2891eb00057626c9039cd826cda6de683419 /include/asm-generic | |
| parent | 449c796768c9a1c738d1fa8671fb01663380b8a7 (diff) | |
| download | linux-7cc8f9c7146a5c2dad6e71653c4f69972e73df6b.tar.gz | |
mm: mmu_gather: prepare to gather encoded page pointers with flags
This is purely a preparatory patch that makes all the data structures
ready for encoding flags with the mmu_gather page pointers.
The code currently always sets the flag to zero and doesn't use it yet,
but now it's tracking the type state along. The next step will be to
actually start using it.
Link: https://lkml.kernel.org/r/20221109203051.1835763-3-torvalds@linux-foundation.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/tlb.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index cab7cfebf40bd..54d03d1e712eb 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -246,7 +246,7 @@ struct mmu_gather_batch { struct mmu_gather_batch *next; unsigned int nr; unsigned int max; - struct page *pages[]; + struct encoded_page *encoded_pages[]; }; #define MAX_GATHER_BATCH \ @@ -260,7 +260,8 @@ struct mmu_gather_batch { */ #define MAX_GATHER_BATCH_COUNT (10000UL/MAX_GATHER_BATCH) -extern bool __tlb_remove_page_size(struct mmu_gather *tlb, struct page *page, +extern bool __tlb_remove_page_size(struct mmu_gather *tlb, + struct encoded_page *page, int page_size); #endif @@ -435,13 +436,13 @@ static inline void tlb_flush_mmu_tlbonly(struct mmu_gather *tlb) static inline void tlb_remove_page_size(struct mmu_gather *tlb, struct page *page, int page_size) { - if (__tlb_remove_page_size(tlb, page, page_size)) + if (__tlb_remove_page_size(tlb, encode_page(page, 0), page_size)) tlb_flush_mmu(tlb); } static inline bool __tlb_remove_page(struct mmu_gather *tlb, struct page *page) { - return __tlb_remove_page_size(tlb, page, PAGE_SIZE); + return __tlb_remove_page_size(tlb, encode_page(page, 0), PAGE_SIZE); } /* tlb_remove_page |