Re: [RFC PATCH 05/14] sparc64: Add PAGE_SHR_CTX flag
From: David Miller <davem@davemloft.net>
Date: 2016-12-18 03:12:59
Also in:
lkml, sparclinux
From: Mike Kravetz <redacted> Date: Fri, 16 Dec 2016 10:35:28 -0800
quoted hunk ↗ jump to hunk
@@ -166,6 +166,7 @@ bool kern_addr_valid(unsigned long addr); #define _PAGE_EXEC_4V _AC(0x0000000000000080,UL) /* Executable Page */ #define _PAGE_W_4V _AC(0x0000000000000040,UL) /* Writable */ #define _PAGE_SOFT_4V _AC(0x0000000000000030,UL) /* Software bits */ +#define _PAGE_SHR_CTX_4V _AC(0x0000000000000020,UL) /* Shared Context */ #define _PAGE_PRESENT_4V _AC(0x0000000000000010,UL) /* Present */ #define _PAGE_RESV_4V _AC(0x0000000000000008,UL) /* Reserved */ #define _PAGE_SZ16GB_4V _AC(0x0000000000000007,UL) /* 16GB Page */
You really don't need this. The VMA is available, and you can obtain the information you need about whether this is a shared mapping or not from the. It just isn't being passed down into things like set_huge_pte_at(). Simply make it do so. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>