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madvise: Support MADV_WIPEONFORK, MADV_KEEPONFORK and MADV_NORMAL

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Change-Id: I1d4cf5affa580d7304dfdc34fa4f1707c0df617c
refs: #1374
This commit is contained in:
TOIDA,Suguru
2020-03-06 15:00:37 +09:00
parent d82ac31bc6
commit 3300e65efc
7 changed files with 131 additions and 2 deletions
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kernel/include/process.h
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@ -56,6 +56,7 @@
#define VR_PAGEOUT 0x10000000
#define VR_DONTDUMP 0x20000000
#define VR_XPMEM 0x40000000
#define VR_WIPEONFORK 0x80000000
#define PROT_TO_VR_FLAG(prot) (((unsigned long)(prot) << 16) & VR_PROT_MASK)
#define VRFLAG_PROT_TO_MAXPROT(vrflag) (((vrflag) & VR_PROT_MASK) << 4)