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| author | Hugh Dickins <hugh@veritas.com> | 2006-07-26 21:39:49 +0100 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2006-07-26 19:58:39 -0400 |
| commit | 804af2cf6e7af31d2e664b54e657dddd9b531dbd (patch) | |
| tree | a9127236c76953ddc627b8133aae208651e206fd /mm/mmap.c | |
| parent | 64821324ca49f24be1a66f2f432108f96a24e596 (diff) | |
| download | linux-rpi3-804af2cf6e7af31d2e664b54e657dddd9b531dbd.tar.gz linux-rpi3-804af2cf6e7af31d2e664b54e657dddd9b531dbd.tar.bz2 linux-rpi3-804af2cf6e7af31d2e664b54e657dddd9b531dbd.zip | |
[AGPGART] remove private page protection map
AGP keeps its own copy of the protection_map, upcoming DRM changes will
also require access to this map from modules.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'mm/mmap.c')
| -rw-r--r-- | mm/mmap.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index c1868ecdbc5f..c7ed061f4507 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -60,6 +60,13 @@ pgprot_t protection_map[16] = { __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111 }; +pgprot_t vm_get_page_prot(unsigned long vm_flags) +{ + return protection_map[vm_flags & + (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]; +} +EXPORT_SYMBOL(vm_get_page_prot); + int sysctl_overcommit_memory = OVERCOMMIT_GUESS; /* heuristic overcommit */ int sysctl_overcommit_ratio = 50; /* default is 50% */ int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT; |