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authorDavid S. Miller <davem@davemloft.net>2013-09-18 18:58:32 (GMT)
committerDavid S. Miller <davem@davemloft.net>2013-11-12 23:22:33 (GMT)
commitc920745e6964bd4b9315a17b018d83fad66010d3 (patch)
tree07a872bac01d893a5a494b12ece22404ba159dce /arch/sparc/kernel
parent10d0c9705e80bbd3d587c5fad24599aabaca6688 (diff)
sparc64: Clean up 64-bit mmap exclusion defines.
Older UltraSPARC chips had an address space hole due to the MMU only supporting 44-bit virtual addresses. The top end of this hole also has the same value as the current definition of PAGE_OFFSET, so this can be confusing. Consolidate the defines for the userspace mmap exclusion range into page_64.h and use them in sys_sparc_64.c and hugetlbpage.c Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Bob Picco <bob.picco@oracle.com>
Diffstat (limited to 'arch/sparc/kernel')
-rw-r--r--arch/sparc/kernel/sys_sparc_64.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 51561b8..d05eb9c 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -39,9 +39,6 @@ asmlinkage unsigned long sys_getpagesize(void)
return PAGE_SIZE;
}
-#define VA_EXCLUDE_START (0x0000080000000000UL - (1UL << 32UL))
-#define VA_EXCLUDE_END (0xfffff80000000000UL + (1UL << 32UL))
-
/* Does addr --> addr+len fall within 4GB of the VA-space hole or
* overflow past the end of the 64-bit address space?
*/

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