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| author | Lee Schermerhorn <Lee.Schermerhorn@hp.com> | 2007-10-16 12:24:51 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 20:42:54 +0400 |
| commit | 754af6f5a85fcd1ecb456851d20c65e4c6ce10ab (patch) | |
| tree | 8c985bfd704a8c993d6ca992725969c6fc5c9e5a /include/linux/mempolicy.h | |
| parent | 32a4330d4156e55a4888a201f484dbafed9504ed (diff) | |
| download | linux-754af6f5a85fcd1ecb456851d20c65e4c6ce10ab.tar.xz | |
Mem Policy: add MPOL_F_MEMS_ALLOWED get_mempolicy() flag
Allow an application to query the memories allowed by its context.
Updated numa_memory_policy.txt to mention that applications can use this to
obtain allowed memories for constructing valid policies.
TODO: update out-of-tree libnuma wrapper[s], or maybe add a new
wrapper--e.g., numa_get_mems_allowed() ?
Also, update numa syscall man pages.
Tested with memtoy V>=0.13.
Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Acked-by: Christoph Lameter <clameter@sgi.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/mempolicy.h')
| -rw-r--r-- | include/linux/mempolicy.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h index a020eb2d4e2a..7e9698ec839b 100644 --- a/include/linux/mempolicy.h +++ b/include/linux/mempolicy.h @@ -19,6 +19,7 @@ /* Flags for get_mem_policy */ #define MPOL_F_NODE (1<<0) /* return next IL mode instead of node mask */ #define MPOL_F_ADDR (1<<1) /* look up vma using address */ +#define MPOL_F_MEMS_ALLOWED (1<<2) /* return allowed memories */ /* Flags for mbind */ #define MPOL_MF_STRICT (1<<0) /* Verify existing pages in the mapping */ |