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| author | Paul Jackson <pj@sgi.com> | 2006-03-24 03:16:04 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-24 07:33:22 -0800 |
| commit | 44110fe385af23ca5eee8a6ad4ff55d50339097a (patch) | |
| tree | 50ed2bfe054b8e35968d8e4a5fbe95c8b3db843b /fs/nfs/direct.c | |
| parent | 825a46af5ac171f9f41f794a0a00165588ba1589 (diff) | |
| download | op-kernel-dev-44110fe385af23ca5eee8a6ad4ff55d50339097a.zip op-kernel-dev-44110fe385af23ca5eee8a6ad4ff55d50339097a.tar.gz | |
[PATCH] cpuset memory spread page cache implementation and hooks
Change the page cache allocation calls to support cpuset memory spreading.
See the previous patch, cpuset_mem_spread, for an explanation of cpuset memory
spreading.
On systems without cpusets configured in the kernel, this is no change.
On systems with cpusets configured in the kernel, but the "memory_spread"
cpuset option not enabled for the current tasks cpuset, this adds a call to a
cpuset routine and failed bit test of the processor state flag PF_SPREAD_PAGE.
On tasks in cpusets with "memory_spread" enabled, this adds a call to a cpuset
routine that computes which of the tasks mems_allowed nodes should be
preferred for this allocation.
If memory spreading applies to a particular allocation, then any other NUMA
mempolicy does not apply.
Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/nfs/direct.c')
0 files changed, 0 insertions, 0 deletions
