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crush: merge working data and scratch

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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>
This commit is contained in:
Ilya Dryomov 2017-01-31 15:55:06 +01:00
parent 66a0e2d579
commit 743efcffff
4 changed files with 29 additions and 19 deletions
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14
net/ceph/osdmap.c
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@ -743,7 +743,7 @@ struct ceph_osdmap *ceph_osdmap_alloc(void)
map->pool_max = -1;
map->pg_temp = RB_ROOT;
map->primary_temp = RB_ROOT;
mutex_init(&map->crush_scratch_mutex);
mutex_init(&map->crush_workspace_mutex);
return map;
}
@ -836,11 +836,14 @@ static int osdmap_set_max_osd(struct ceph_osdmap *map, int max)
static int osdmap_set_crush(struct ceph_osdmap *map, struct crush_map *crush)
{
void *workspace;
size_t work_size;
if (IS_ERR(crush))
return PTR_ERR(crush);
workspace = kmalloc(crush->working_size, GFP_NOIO);
work_size = crush_work_size(crush, CEPH_PG_MAX_SIZE);
dout("%s work_size %zu bytes\n", __func__, work_size);
workspace = kmalloc(work_size, GFP_NOIO);
if (!workspace) {
crush_destroy(crush);
return -ENOMEM;
@ -1974,11 +1977,10 @@ static int do_crush(struct ceph_osdmap *map, int ruleno, int x,
BUG_ON(result_max > CEPH_PG_MAX_SIZE);
mutex_lock(&map->crush_scratch_mutex);
mutex_lock(&map->crush_workspace_mutex);
r = crush_do_rule(map->crush, ruleno, x, result, result_max,
weight, weight_max, map->crush_workspace,
map->crush_scratch_ary);
mutex_unlock(&map->crush_scratch_mutex);
weight, weight_max, map->crush_workspace);
mutex_unlock(&map->crush_workspace_mutex);
return r;
}