diff options
author | Frederic Weisbecker <fweisbec@gmail.com> | 2013-05-02 19:37:49 +0400 |
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committer | Frederic Weisbecker <fweisbec@gmail.com> | 2013-05-02 19:54:19 +0400 |
commit | c032862fba51a3ca504752d3a25186b324c5ce83 (patch) | |
tree | 955dc2ba4ab3df76ecc2bb780ee84aca04967e8d /net/ceph/osdmap.c | |
parent | fda76e074c7737fc57855dd17c762e50ed526052 (diff) | |
parent | 8700c95adb033843fc163d112b9d21d4fda78018 (diff) | |
download | linux-c032862fba51a3ca504752d3a25186b324c5ce83.tar.xz |
Merge commit '8700c95adb03' into timers/nohz
The full dynticks tree needs the latest RCU and sched
upstream updates in order to fix some dependencies.
Merge a common upstream merge point that has these
updates.
Conflicts:
include/linux/perf_event.h
kernel/rcutree.h
kernel/rcutree_plugin.h
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'net/ceph/osdmap.c')
-rw-r--r-- | net/ceph/osdmap.c | 42 |
1 files changed, 29 insertions, 13 deletions
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c index 69bc4bf89e3e..4543b9aba40c 100644 --- a/net/ceph/osdmap.c +++ b/net/ceph/osdmap.c @@ -654,6 +654,24 @@ static int osdmap_set_max_osd(struct ceph_osdmap *map, int max) return 0; } +static int __decode_pgid(void **p, void *end, struct ceph_pg *pg) +{ + u8 v; + + ceph_decode_need(p, end, 1+8+4+4, bad); + v = ceph_decode_8(p); + if (v != 1) + goto bad; + pg->pool = ceph_decode_64(p); + pg->seed = ceph_decode_32(p); + *p += 4; /* skip preferred */ + return 0; + +bad: + dout("error decoding pgid\n"); + return -EINVAL; +} + /* * decode a full map. */ @@ -745,13 +763,12 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end) for (i = 0; i < len; i++) { int n, j; struct ceph_pg pgid; - struct ceph_pg_v1 pgid_v1; struct ceph_pg_mapping *pg; - ceph_decode_need(p, end, sizeof(u32) + sizeof(u64), bad); - ceph_decode_copy(p, &pgid_v1, sizeof(pgid_v1)); - pgid.pool = le32_to_cpu(pgid_v1.pool); - pgid.seed = le16_to_cpu(pgid_v1.ps); + err = __decode_pgid(p, end, &pgid); + if (err) + goto bad; + ceph_decode_need(p, end, sizeof(u32), bad); n = ceph_decode_32(p); err = -EINVAL; if (n > (UINT_MAX - sizeof(*pg)) / sizeof(u32)) @@ -818,8 +835,8 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end, u16 version; ceph_decode_16_safe(p, end, version, bad); - if (version > 6) { - pr_warning("got unknown v %d > %d of inc osdmap\n", version, 6); + if (version != 6) { + pr_warning("got unknown v %d != 6 of inc osdmap\n", version); goto bad; } @@ -963,15 +980,14 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end, while (len--) { struct ceph_pg_mapping *pg; int j; - struct ceph_pg_v1 pgid_v1; struct ceph_pg pgid; u32 pglen; - ceph_decode_need(p, end, sizeof(u64) + sizeof(u32), bad); - ceph_decode_copy(p, &pgid_v1, sizeof(pgid_v1)); - pgid.pool = le32_to_cpu(pgid_v1.pool); - pgid.seed = le16_to_cpu(pgid_v1.ps); - pglen = ceph_decode_32(p); + err = __decode_pgid(p, end, &pgid); + if (err) + goto bad; + ceph_decode_need(p, end, sizeof(u32), bad); + pglen = ceph_decode_32(p); if (pglen) { ceph_decode_need(p, end, pglen*sizeof(u32), bad); |