修改内核路径

hc

2024-05-14 bedbef8ad3e75a304af6361af235302bcc61d06b

 kernel/arch/xtensa/include/uapi/asm/mman.h
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@@ -34,9 +34,7 @@
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 /*
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  * Flags for mmap
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  */
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-#define MAP_SHARED	0x001		/* Share changes */
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-#define MAP_PRIVATE	0x002		/* Changes are private */
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-#define MAP_SHARED_VALIDATE 0x003	/* share + validate extension flags */
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+/* 0x01 - 0x03 are defined in linux/mman.h */
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 #define MAP_TYPE	0x00f		/* Mask for type of mapping */
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 #define MAP_FIXED	0x010		/* Interpret addr exactly */
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@@ -58,12 +56,8 @@
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 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
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 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
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 #define MAP_FIXED_NOREPLACE 0x100000	/* MAP_FIXED which doesn't unmap underlying mapping */
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-#ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED
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-# define MAP_UNINITIALIZED 0x4000000	/* For anonymous mmap, memory could be
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+#define MAP_UNINITIALIZED 0x4000000	/* For anonymous mmap, memory could be
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 					 * uninitialized */
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-#else
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-# define MAP_UNINITIALIZED 0x0		/* Don't support this flag */
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-#endif
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 /*
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  * Flags for msync
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@@ -109,6 +103,9 @@
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 #define MADV_WIPEONFORK 18		/* Zero memory on fork, child only */
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 #define MADV_KEEPONFORK 19		/* Undo MADV_WIPEONFORK */
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+#define MADV_COLD	20		/* deactivate these pages */
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+#define MADV_PAGEOUT	21		/* reclaim these pages */
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+
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 /* compatibility flags */
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 #define MAP_FILE	0
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