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authorIlya Dryomov <idryomov@gmail.com>2017-01-31 15:55:06 +0100
committerIlya Dryomov <idryomov@gmail.com>2017-02-20 12:16:11 +0100
commit743efcffffc6620ab44ea9ec67c7e4e28dfa7742 (patch)
treea087b21bd95308161d8b14269452efd1e798949d /net/ceph/crush
parent66a0e2d579dbec5c676cfe446234ffebb267c564 (diff)
crush: merge working data and scratch
Much like Arlo Guthrie, I decided that one big pile is better than two little piles. Reflects ceph.git commit 95c2df6c7e0b22d2ea9d91db500cf8b9441c73ba. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'net/ceph/crush')
-rw-r--r--net/ceph/crush/mapper.c17
1 files changed, 7 insertions, 10 deletions
diff --git a/net/ceph/crush/mapper.c b/net/ceph/crush/mapper.c
index 9e75be5ec716..2e31217ccae3 100644
--- a/net/ceph/crush/mapper.c
+++ b/net/ceph/crush/mapper.c
@@ -855,23 +855,22 @@ void crush_init_workspace(const struct crush_map *map, void *v)
* @result_max: maximum result size
* @weight: weight vector (for map leaves)
* @weight_max: size of weight vector
- * @cwin: pointer to at least map->working_size bytes of memory
- * @scratch: scratch vector for private use; must be >= 3 * result_max
+ * @cwin: pointer to at least crush_work_size() bytes of memory
*/
int crush_do_rule(const struct crush_map *map,
int ruleno, int x, int *result, int result_max,
const __u32 *weight, int weight_max,
- void *cwin, int *scratch)
+ void *cwin)
{
int result_len;
struct crush_work *cw = cwin;
- int *a = scratch;
- int *b = scratch + result_max;
- int *c = scratch + result_max*2;
+ int *a = cwin + map->working_size;
+ int *b = a + result_max;
+ int *c = b + result_max;
+ int *w = a;
+ int *o = b;
int recurse_to_leaf;
- int *w;
int wsize = 0;
- int *o;
int osize;
int *tmp;
const struct crush_rule *rule;
@@ -902,8 +901,6 @@ int crush_do_rule(const struct crush_map *map,
rule = map->rules[ruleno];
result_len = 0;
- w = a;
- o = b;
for (step = 0; step < rule->len; step++) {
int firstn = 0;