ceph: convert encode/decode macros to inlines
This avoids the fugly pass by reference and makes the code a bit easier
to read.
Signed-off-by: Sage Weil <sage@newdream.net>
diff --git a/fs/ceph/osdmap.c b/fs/ceph/osdmap.c
index 342e5f8..6f0aeff 100644
--- a/fs/ceph/osdmap.c
+++ b/fs/ceph/osdmap.c
@@ -67,7 +67,7 @@
{
dout("crush_decode_uniform_bucket %p to %p\n", *p, end);
ceph_decode_need(p, end, (1+b->h.size) * sizeof(u32), bad);
- ceph_decode_32(p, b->item_weight);
+ b->item_weight = ceph_decode_32(p);
return 0;
bad:
return -EINVAL;
@@ -86,8 +86,8 @@
return -ENOMEM;
ceph_decode_need(p, end, 2 * b->h.size * sizeof(u32), bad);
for (j = 0; j < b->h.size; j++) {
- ceph_decode_32(p, b->item_weights[j]);
- ceph_decode_32(p, b->sum_weights[j]);
+ b->item_weights[j] = ceph_decode_32(p);
+ b->sum_weights[j] = ceph_decode_32(p);
}
return 0;
bad:
@@ -105,7 +105,7 @@
return -ENOMEM;
ceph_decode_need(p, end, b->num_nodes * sizeof(u32), bad);
for (j = 0; j < b->num_nodes; j++)
- ceph_decode_32(p, b->node_weights[j]);
+ b->node_weights[j] = ceph_decode_32(p);
return 0;
bad:
return -EINVAL;
@@ -124,8 +124,8 @@
return -ENOMEM;
ceph_decode_need(p, end, 2 * b->h.size * sizeof(u32), bad);
for (j = 0; j < b->h.size; j++) {
- ceph_decode_32(p, b->item_weights[j]);
- ceph_decode_32(p, b->straws[j]);
+ b->item_weights[j] = ceph_decode_32(p);
+ b->straws[j] = ceph_decode_32(p);
}
return 0;
bad:
@@ -148,15 +148,15 @@
return ERR_PTR(-ENOMEM);
ceph_decode_need(p, end, 4*sizeof(u32), bad);
- ceph_decode_32(p, magic);
+ magic = ceph_decode_32(p);
if (magic != CRUSH_MAGIC) {
pr_err("crush_decode magic %x != current %x\n",
(unsigned)magic, (unsigned)CRUSH_MAGIC);
goto bad;
}
- ceph_decode_32(p, c->max_buckets);
- ceph_decode_32(p, c->max_rules);
- ceph_decode_32(p, c->max_devices);
+ c->max_buckets = ceph_decode_32(p);
+ c->max_rules = ceph_decode_32(p);
+ c->max_devices = ceph_decode_32(p);
c->device_parents = kcalloc(c->max_devices, sizeof(u32), GFP_NOFS);
if (c->device_parents == NULL)
@@ -208,11 +208,11 @@
goto badmem;
ceph_decode_need(p, end, 4*sizeof(u32), bad);
- ceph_decode_32(p, b->id);
- ceph_decode_16(p, b->type);
- ceph_decode_16(p, b->alg);
- ceph_decode_32(p, b->weight);
- ceph_decode_32(p, b->size);
+ b->id = ceph_decode_32(p);
+ b->type = ceph_decode_16(p);
+ b->alg = ceph_decode_16(p);
+ b->weight = ceph_decode_32(p);
+ b->size = ceph_decode_32(p);
dout("crush_decode bucket size %d off %x %p to %p\n",
b->size, (int)(*p-start), *p, end);
@@ -227,7 +227,7 @@
ceph_decode_need(p, end, b->size*sizeof(u32), bad);
for (j = 0; j < b->size; j++)
- ceph_decode_32(p, b->items[j]);
+ b->items[j] = ceph_decode_32(p);
switch (b->alg) {
case CRUSH_BUCKET_UNIFORM:
@@ -290,9 +290,9 @@
ceph_decode_copy_safe(p, end, &r->mask, 4, bad); /* 4 u8's */
ceph_decode_need(p, end, r->len*3*sizeof(u32), bad);
for (j = 0; j < r->len; j++) {
- ceph_decode_32(p, r->steps[j].op);
- ceph_decode_32(p, r->steps[j].arg1);
- ceph_decode_32(p, r->steps[j].arg2);
+ r->steps[j].op = ceph_decode_32(p);
+ r->steps[j].arg1 = ceph_decode_32(p);
+ r->steps[j].arg2 = ceph_decode_32(p);
}
}
@@ -411,11 +411,11 @@
ceph_decode_need(p, end, 2*sizeof(u64)+6*sizeof(u32), bad);
ceph_decode_copy(p, &map->fsid, sizeof(map->fsid));
- ceph_decode_32(p, map->epoch);
+ map->epoch = ceph_decode_32(p);
ceph_decode_copy(p, &map->created, sizeof(map->created));
ceph_decode_copy(p, &map->modified, sizeof(map->modified));
- ceph_decode_32(p, map->num_pools);
+ map->num_pools = ceph_decode_32(p);
map->pg_pool = kcalloc(map->num_pools, sizeof(*map->pg_pool),
GFP_NOFS);
if (!map->pg_pool) {
@@ -425,7 +425,7 @@
ceph_decode_32_safe(p, end, max, bad);
while (max--) {
ceph_decode_need(p, end, 4+sizeof(map->pg_pool->v), bad);
- ceph_decode_32(p, i);
+ i = ceph_decode_32(p);
if (i >= map->num_pools)
goto bad;
ceph_decode_copy(p, &map->pg_pool[i].v,
@@ -438,7 +438,7 @@
ceph_decode_32_safe(p, end, map->flags, bad);
- ceph_decode_32(p, max);
+ max = ceph_decode_32(p);
/* (re)alloc osd arrays */
err = osdmap_set_max_osd(map, max);
@@ -456,7 +456,7 @@
*p += 4; /* skip length field (should match max) */
for (i = 0; i < map->max_osd; i++)
- ceph_decode_32(p, map->osd_weight[i]);
+ map->osd_weight[i] = ceph_decode_32(p);
*p += 4; /* skip length field (should match max) */
ceph_decode_copy(p, map->osd_addr, map->max_osd*sizeof(*map->osd_addr));
@@ -469,8 +469,8 @@
struct ceph_pg_mapping *pg;
ceph_decode_need(p, end, sizeof(u32) + sizeof(u64), bad);
- ceph_decode_64(p, pgid);
- ceph_decode_32(p, n);
+ pgid = ceph_decode_64(p);
+ n = ceph_decode_32(p);
ceph_decode_need(p, end, n * sizeof(u32), bad);
pg = kmalloc(sizeof(*pg) + n*sizeof(u32), GFP_NOFS);
if (!pg) {
@@ -480,7 +480,7 @@
pg->pgid = pgid;
pg->len = n;
for (j = 0; j < n; j++)
- ceph_decode_32(p, pg->osds[j]);
+ pg->osds[j] = ceph_decode_32(p);
err = __insert_pg_mapping(pg, &map->pg_temp);
if (err)
@@ -537,10 +537,10 @@
ceph_decode_need(p, end, sizeof(fsid)+sizeof(modified)+2*sizeof(u32),
bad);
ceph_decode_copy(p, &fsid, sizeof(fsid));
- ceph_decode_32(p, epoch);
+ epoch = ceph_decode_32(p);
BUG_ON(epoch != map->epoch+1);
ceph_decode_copy(p, &modified, sizeof(modified));
- ceph_decode_32(p, new_flags);
+ new_flags = ceph_decode_32(p);
/* full map? */
ceph_decode_32_safe(p, end, len, bad);
@@ -568,7 +568,7 @@
ceph_decode_need(p, end, 5*sizeof(u32), bad);
/* new max? */
- ceph_decode_32(p, max);
+ max = ceph_decode_32(p);
if (max >= 0) {
err = osdmap_set_max_osd(map, max);
if (err < 0)
@@ -641,8 +641,8 @@
while (len--) {
u32 osd, off;
ceph_decode_need(p, end, sizeof(u32)*2, bad);
- ceph_decode_32(p, osd);
- ceph_decode_32(p, off);
+ osd = ceph_decode_32(p);
+ off = ceph_decode_32(p);
pr_info("osd%d weight 0x%x %s\n", osd, off,
off == CEPH_OSD_IN ? "(in)" :
(off == CEPH_OSD_OUT ? "(out)" : ""));
@@ -659,8 +659,8 @@
u64 pgid;
u32 pglen;
ceph_decode_need(p, end, sizeof(u64) + sizeof(u32), bad);
- ceph_decode_64(p, pgid);
- ceph_decode_32(p, pglen);
+ pgid = ceph_decode_64(p);
+ pglen = ceph_decode_32(p);
/* remove any? */
while (rbp && rb_entry(rbp, struct ceph_pg_mapping,
@@ -683,7 +683,7 @@
pg->pgid = pgid;
pg->len = pglen;
for (j = 0; j < len; j++)
- ceph_decode_32(p, pg->osds[j]);
+ pg->osds[j] = ceph_decode_32(p);
err = __insert_pg_mapping(pg, &map->pg_temp);
if (err)
goto bad;