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mm: Introduce set_memory_rox()

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Because endlessly repeating:

	set_memory_ro()
	set_memory_x()

is getting tedious.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/Y1jek64pXOsougmz@hirez.programming.kicks-ass.net
This commit is contained in:
Peter Zijlstra
2022-10-26 12:13:03 +02:00
committed by Dave Hansen
parent 414ebf148c
commit d48567c9a0
12 changed files with 30 additions and 42 deletions
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8
include/linux/set_memory.h
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@@ -14,6 +14,14 @@ static inline int set_memory_x(unsigned long addr, int numpages) { return 0; }
static inline int set_memory_nx(unsigned long addr, int numpages) { return 0; }
#endif
static inline int set_memory_rox(unsigned long addr, int numpages)
{
int ret = set_memory_ro(addr, numpages);
if (ret)
return ret;
return set_memory_x(addr, numpages);
}
#ifndef CONFIG_ARCH_HAS_SET_DIRECT_MAP
static inline int set_direct_map_invalid_noflush(struct page *page)
{