diff options
| author | Peter Collingbourne <pcc@google.com> | 2022-11-03 18:10:37 -0700 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2022-11-29 09:26:07 +0000 |
| commit | ef6458b1b6ca3fdb991ce4182e981a88d4c58c0f (patch) | |
| tree | d52ed45ee1bde6bbe472830fb429d3917d6bb20e /mm/huge_memory.c | |
| parent | 2dbf12ae132cc78048615cfa19c9be64baaf0ced (diff) | |
| download | linux-ef6458b1b6ca3fdb991ce4182e981a88d4c58c0f.tar.gz | |
mm: Add PG_arch_3 page flag
As with PG_arch_2, this flag is only allowed on 64-bit architectures due
to the shortage of bits available. It will be used by the arm64 MTE code
in subsequent patches.
Signed-off-by: Peter Collingbourne <pcc@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Steven Price <steven.price@arm.com>
[catalin.marinas@arm.com: added flag preserving in __split_huge_page_tail()]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221104011041.290951-5-pcc@google.com
Diffstat (limited to 'mm/huge_memory.c')
| -rw-r--r-- | mm/huge_memory.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 76e7b973919ca..dfe72ea23c5f3 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2446,6 +2446,7 @@ static void __split_huge_page_tail(struct page *head, int tail, (1L << PG_unevictable) | #ifdef CONFIG_ARCH_USES_PG_ARCH_X (1L << PG_arch_2) | + (1L << PG_arch_3) | #endif (1L << PG_dirty) | LRU_GEN_MASK | LRU_REFS_MASK)); |