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charset="UTF-8" X-Rspam-User: X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 494D1180004 X-Stat-Signature: 9krqn7xc1drmt1xcnqoq5xtgxpyskb4s X-HE-Tag: 1788346272-797987 X-HE-Meta: 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 ARdpJjin 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: While can_set_direct_map() tells whether the direct map can be modified globally, can_set_direct_map_range() checks if a specific range can be modified. e.g. if mapped at PTE-level. Signed-off-by: Vincent Donnefort diff --git a/include/linux/set_memory.h b/include/linux/set_memory.h index 3030d9245f5a..88175c3fa751 100644 --- a/include/linux/set_memory.h +++ b/include/linux/set_memory.h @@ -44,6 +44,12 @@ static inline bool kernel_page_present(struct page *page) { return true; } + +static inline bool can_set_direct_map_range(struct page *page, + unsigned long nr_pages) +{ + return false; +} #else /* CONFIG_ARCH_HAS_SET_DIRECT_MAP */ /* * Some architectures, e.g. ARM64 can disable direct map modifications at @@ -56,6 +62,14 @@ static inline bool can_set_direct_map(void) } #define can_set_direct_map can_set_direct_map #endif + +#ifndef can_set_direct_map_range +static inline bool can_set_direct_map_range(struct page *page, unsigned long nr_pages) +{ + return can_set_direct_map(); +} +#define can_set_direct_map_range can_set_direct_map_range +#endif #endif /* CONFIG_ARCH_HAS_SET_DIRECT_MAP */ #ifdef CONFIG_X86_64 -- 2.55.0.970.g62bdec98f9-goog