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| author |   Christoph Lameter <clameter@sgi.com> | 2006-09-25 23:31:18 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-26 08:48:47 -0700 |
| commit | 2f6726e54a9410e2e4cee864947c05e954051916 (patch) | |
| tree | 91b1173dead0cfc4a25caacb34b6c80f526bbc59 /mm/mempolicy.c | |
| parent | [PATCH] mempolicies: fix policy_zone check (diff) | |
| download | linux-dev-2f6726e54a9410e2e4cee864947c05e954051916.tar.xz linux-dev-2f6726e54a9410e2e4cee864947c05e954051916.zip | |
[PATCH] Apply type enum zone_type
After we have done this we can now do some typing cleanup.
The memory policy layer keeps a policy_zone that specifies
the zone that gets memory policies applied. This variable
can now be of type enum zone_type.
The check_highest_zone function and the build_zonelists funnctionm must
then also take a enum zone_type parameter.
Plus there are a number of loops over zones that also should use
zone_type.
We run into some troubles at some points with functions that need a
zone_type variable to become -1. Fix that up.
[pj@sgi.com: fix set_mempolicy() crash]
Signed-off-by: Christoph Lameter <clameter@sgi.com>
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 'mm/mempolicy.c')
| -rw-r--r-- | mm/mempolicy.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 9870624d72a6..7da4142ce960 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -105,7 +105,7 @@ static struct kmem_cache *sn_cache; /* Highest zone. An specific allocation for a zone below that is not policied. */ -int policy_zone = ZONE_DMA; +enum zone_type policy_zone = ZONE_DMA; struct mempolicy default_policy = { .refcnt = ATOMIC_INIT(1), /* never free it */ @@ -137,7 +137,8 @@ static int mpol_check_policy(int mode, nodemask_t *nodes) static struct zonelist *bind_zonelist(nodemask_t *nodes) { struct zonelist *zl; - int num, max, nd, k; + int num, max, nd; + enum zone_type k; max = 1 + MAX_NR_ZONES * nodes_weight(*nodes); zl = kmalloc(sizeof(struct zone *) * max, GFP_KERNEL); @@ -148,12 +149,16 @@ static struct zonelist *bind_zonelist(nodemask_t *nodes) lower zones etc. Avoid empty zones because the memory allocator doesn't like them. If you implement node hot removal you have to fix that. */ - for (k = policy_zone; k >= 0; k--) { + k = policy_zone; + while (1) { for_each_node_mask(nd, *nodes) { struct zone *z = &NODE_DATA(nd)->node_zones[k]; if (z->present_pages > 0) zl->zones[num++] = z; } + if (k == 0) + break; + k--; } zl->zones[num] = NULL; return zl; |