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| author |   David S. Miller <davem@davemloft.net> | 2013-09-18 11:58:32 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-11-12 15:22:33 -0800 |
| commit | c920745e6964bd4b9315a17b018d83fad66010d3 (patch) | |
| tree | 07a872bac01d893a5a494b12ece22404ba159dce /arch/sparc/kernel/sys_sparc_64.c | |
| parent | Merge tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux (diff) | |
| download | linux-dev-c920745e6964bd4b9315a17b018d83fad66010d3.tar.xz linux-dev-c920745e6964bd4b9315a17b018d83fad66010d3.zip | |
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/sys_sparc_64.c')
| -rw-r--r-- | arch/sparc/kernel/sys_sparc_64.c | 3 |
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 51561b8b15ba..d05eb9c1d846 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? */ |