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| author | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-29 13:01:56 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-29 13:01:56 -0800 |
| commit | 238f58d898df941aa9d1cb390fb27ff4febe8965 (patch) | |
| tree | 4a897b3a47e7d209e3ff8601febd3dde16f3803e /include | |
| parent | eca351336acb2fa943611e0846562ce3997ef53b (diff) | |
| download | op-kernel-dev-238f58d898df941aa9d1cb390fb27ff4febe8965.zip op-kernel-dev-238f58d898df941aa9d1cb390fb27ff4febe8965.tar.gz | |
Support strange discontiguous PFN remappings
These get created by some drivers that don't generally even want a pfn
remapping at all, but would really mostly prefer to just map pages
they've allocated individually instead.
For now, create a helper function that turns such an incomplete PFN
remapping call into a loop that does that explicit mapping. In the long
run we almost certainly want to export a totally different interface for
that, though.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 6a75a7a..74f90d7 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -163,6 +163,7 @@ extern unsigned int kobjsize(const void *objp); #define VM_HUGETLB 0x00400000 /* Huge TLB Page VM */ #define VM_NONLINEAR 0x00800000 /* Is non-linear (remap_file_pages) */ #define VM_MAPPED_COPY 0x01000000 /* T if mapped copy of data (nommu mmap) */ +#define VM_INCOMPLETE 0x02000000 /* Strange partial PFN mapping marker */ #ifndef VM_STACK_DEFAULT_FLAGS /* arch can override this */ #define VM_STACK_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS |
