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| author | Sage Weil <sage@newdream.net> | 2010-06-17 14:19:01 -0700 |
|---|---|---|
| committer | Sage Weil <sage@newdream.net> | 2010-08-01 20:11:40 -0700 |
| commit | 0deb01c9998f8112c5e478e3fe3a930131abbc0a (patch) | |
| tree | 1b98a08ce630949268c4f26d5f232d07acb5c7ba /fs/ceph | |
| parent | cd84db6e4051a9fb7941d49d31a0193a3371fd61 (diff) | |
| download | kernel_samsung_smdk4412-0deb01c9998f8112c5e478e3fe3a930131abbc0a.tar.gz kernel_samsung_smdk4412-0deb01c9998f8112c5e478e3fe3a930131abbc0a.tar.bz2 kernel_samsung_smdk4412-0deb01c9998f8112c5e478e3fe3a930131abbc0a.zip | |
ceph: track laggy state of mds from mdsmap
Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs/ceph')
| -rw-r--r-- | fs/ceph/mds_client.c | 4 | ||||
| -rw-r--r-- | fs/ceph/mdsmap.c | 6 | ||||
| -rw-r--r-- | fs/ceph/mdsmap.h | 8 |
3 files changed, 16 insertions, 2 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 774407f96ff..6e40db2a001 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -2377,9 +2377,11 @@ static void check_new_map(struct ceph_mds_client *mdsc, oldstate = ceph_mdsmap_get_state(oldmap, i); newstate = ceph_mdsmap_get_state(newmap, i); - dout("check_new_map mds%d state %s -> %s (session %s)\n", + dout("check_new_map mds%d state %s%s -> %s%s (session %s)\n", i, ceph_mds_state_name(oldstate), + ceph_mdsmap_is_laggy(oldmap, i) ? " (laggy)" : "", ceph_mds_state_name(newstate), + ceph_mdsmap_is_laggy(newmap, i) ? " (laggy)" : "", session_state_name(s->s_state)); if (memcmp(ceph_mdsmap_get_addr(oldmap, i), diff --git a/fs/ceph/mdsmap.c b/fs/ceph/mdsmap.c index c4c498e6dfe..040be6d1150 100644 --- a/fs/ceph/mdsmap.c +++ b/fs/ceph/mdsmap.c @@ -85,6 +85,7 @@ struct ceph_mdsmap *ceph_mdsmap_decode(void **p, void *end) struct ceph_entity_addr addr; u32 num_export_targets; void *pexport_targets = NULL; + struct ceph_timespec laggy_since; ceph_decode_need(p, end, sizeof(u64)*2 + 1 + sizeof(u32), bad); global_id = ceph_decode_64(p); @@ -103,7 +104,7 @@ struct ceph_mdsmap *ceph_mdsmap_decode(void **p, void *end) state_seq = ceph_decode_64(p); ceph_decode_copy(p, &addr, sizeof(addr)); ceph_decode_addr(&addr); - *p += sizeof(struct ceph_timespec); + ceph_decode_copy(p, &laggy_since, sizeof(laggy_since)); *p += sizeof(u32); ceph_decode_32_safe(p, end, namelen, bad); *p += namelen; @@ -122,6 +123,9 @@ struct ceph_mdsmap *ceph_mdsmap_decode(void **p, void *end) m->m_info[mds].global_id = global_id; m->m_info[mds].state = state; m->m_info[mds].addr = addr; + m->m_info[mds].laggy = + (laggy_since.tv_sec != 0 || + laggy_since.tv_nsec != 0); m->m_info[mds].num_export_targets = num_export_targets; if (num_export_targets) { m->m_info[mds].export_targets = diff --git a/fs/ceph/mdsmap.h b/fs/ceph/mdsmap.h index eacc131aa5c..4c5cb0880bb 100644 --- a/fs/ceph/mdsmap.h +++ b/fs/ceph/mdsmap.h @@ -13,6 +13,7 @@ struct ceph_mds_info { struct ceph_entity_addr addr; s32 state; int num_export_targets; + bool laggy; u32 *export_targets; }; @@ -47,6 +48,13 @@ static inline int ceph_mdsmap_get_state(struct ceph_mdsmap *m, int w) return m->m_info[w].state; } +static inline bool ceph_mdsmap_is_laggy(struct ceph_mdsmap *m, int w) +{ + if (w >= 0 && w < m->m_max_mds) + return m->m_info[w].laggy; + return false; +} + extern int ceph_mdsmap_get_random_mds(struct ceph_mdsmap *m); extern struct ceph_mdsmap *ceph_mdsmap_decode(void **p, void *end); extern void ceph_mdsmap_destroy(struct ceph_mdsmap *m); |