{
int i;
struct ceph_fs_client *fsc = s->private;
+ struct ceph_mdsmap *mdsmap;
if (fsc->mdsc == NULL || fsc->mdsc->mdsmap == NULL)
return 0;
- seq_printf(s, "epoch %d\n", fsc->mdsc->mdsmap->m_epoch);
- seq_printf(s, "root %d\n", fsc->mdsc->mdsmap->m_root);
- seq_printf(s, "session_timeout %d\n",
- fsc->mdsc->mdsmap->m_session_timeout);
- seq_printf(s, "session_autoclose %d\n",
- fsc->mdsc->mdsmap->m_session_autoclose);
- for (i = 0; i < fsc->mdsc->mdsmap->m_max_mds; i++) {
- struct ceph_entity_addr *addr =
- &fsc->mdsc->mdsmap->m_info[i].addr;
- int state = fsc->mdsc->mdsmap->m_info[i].state;
-
+ mdsmap = fsc->mdsc->mdsmap;
+ seq_printf(s, "epoch %d\n", mdsmap->m_epoch);
+ seq_printf(s, "root %d\n", mdsmap->m_root);
+ seq_printf(s, "max_mds %d\n", mdsmap->m_max_mds);
+ seq_printf(s, "session_timeout %d\n", mdsmap->m_session_timeout);
+ seq_printf(s, "session_autoclose %d\n", mdsmap->m_session_autoclose);
+ for (i = 0; i < mdsmap->m_num_mds; i++) {
+ struct ceph_entity_addr *addr = &mdsmap->m_info[i].addr;
+ int state = mdsmap->m_info[i].state;
seq_printf(s, "\tmds%d\t%s\t(%s)\n", i,
ceph_pr_addr(&addr->in_addr),
ceph_mds_state_name(state));
{
struct ceph_mds_session *s;
- if (mds >= mdsc->mdsmap->m_max_mds)
+ if (mds >= mdsc->mdsmap->m_num_mds)
return ERR_PTR(-EINVAL);
s = kzalloc(sizeof(*s), GFP_NOFS);
struct ceph_mds_session *ts;
int i, mds = session->s_mds;
- if (mds >= mdsc->mdsmap->m_max_mds)
+ if (mds >= mdsc->mdsmap->m_num_mds)
return;
mi = &mdsc->mdsmap->m_info[mds];
dout("check_new_map new %u old %u\n",
newmap->m_epoch, oldmap->m_epoch);
- for (i = 0; i < oldmap->m_max_mds && i < mdsc->max_sessions; i++) {
+ for (i = 0; i < oldmap->m_num_mds && i < mdsc->max_sessions; i++) {
if (mdsc->sessions[i] == NULL)
continue;
s = mdsc->sessions[i];
ceph_mdsmap_is_laggy(newmap, i) ? " (laggy)" : "",
ceph_session_state_name(s->s_state));
- if (i >= newmap->m_max_mds ||
+ if (i >= newmap->m_num_mds ||
memcmp(ceph_mdsmap_get_addr(oldmap, i),
ceph_mdsmap_get_addr(newmap, i),
sizeof(struct ceph_entity_addr))) {
}
}
- for (i = 0; i < newmap->m_max_mds && i < mdsc->max_sessions; i++) {
+ for (i = 0; i < newmap->m_num_mds && i < mdsc->max_sessions; i++) {
s = mdsc->sessions[i];
if (!s)
continue;
int i;
/* special case for one mds */
- if (1 == m->m_max_mds && m->m_info[0].state > 0)
+ if (1 == m->m_num_mds && m->m_info[0].state > 0)
return 0;
/* count */
- for (i = 0; i < m->m_max_mds; i++)
+ for (i = 0; i < m->m_num_mds; i++)
if (m->m_info[i].state > 0)
n++;
if (n == 0)
m->m_session_autoclose = ceph_decode_32(p);
m->m_max_file_size = ceph_decode_64(p);
m->m_max_mds = ceph_decode_32(p);
+ m->m_num_mds = m->m_max_mds;
- m->m_info = kcalloc(m->m_max_mds, sizeof(*m->m_info), GFP_NOFS);
+ m->m_info = kcalloc(m->m_num_mds, sizeof(*m->m_info), GFP_NOFS);
if (m->m_info == NULL)
goto nomem;
ceph_pr_addr(&addr.in_addr),
ceph_mds_state_name(state));
- if (mds < 0 || mds >= m->m_max_mds || state <= 0)
+ if (mds < 0 || state <= 0)
continue;
+ if (mds >= m->m_num_mds) {
+ int new_num = max(mds + 1, m->m_num_mds * 2);
+ void *new_m_info = krealloc(m->m_info,
+ new_num * sizeof(*m->m_info),
+ GFP_NOFS | __GFP_ZERO);
+ if (!new_m_info)
+ goto nomem;
+ m->m_info = new_m_info;
+ m->m_num_mds = new_num;
+ }
+
info = &m->m_info[mds];
info->global_id = global_id;
info->state = state;
info->export_targets = NULL;
}
}
+ if (m->m_num_mds > m->m_max_mds) {
+ /* find max up mds */
+ for (i = m->m_num_mds; i >= m->m_max_mds; i--) {
+ if (i == 0 || m->m_info[i-1].state > 0)
+ break;
+ }
+ m->m_num_mds = i;
+ }
/* pg_pools */
ceph_decode_32_safe(p, end, n, bad);
for (i = 0; i < n; i++) {
s32 mds = ceph_decode_32(p);
- if (mds >= 0 && mds < m->m_max_mds) {
+ if (mds >= 0 && mds < m->m_num_mds) {
if (m->m_info[mds].laggy)
num_laggy++;
}
}
m->m_num_laggy = num_laggy;
+
+ if (n > m->m_num_mds) {
+ void *new_m_info = krealloc(m->m_info,
+ n * sizeof(*m->m_info),
+ GFP_NOFS | __GFP_ZERO);
+ if (!new_m_info)
+ goto nomem;
+ m->m_info = new_m_info;
+ }
+ m->m_num_mds = n;
}
/* inc */
{
int i;
- for (i = 0; i < m->m_max_mds; i++)
+ for (i = 0; i < m->m_num_mds; i++)
kfree(m->m_info[i].export_targets);
kfree(m->m_info);
kfree(m->m_data_pg_pools);
return false;
if (m->m_num_laggy > 0)
return false;
- for (i = 0; i < m->m_max_mds; i++) {
+ for (i = 0; i < m->m_num_mds; i++) {
if (m->m_info[i].state == CEPH_MDS_STATE_ACTIVE)
nr_active++;
}
u32 m_session_autoclose; /* seconds */
u64 m_max_file_size;
u32 m_max_mds; /* size of m_addr, m_state arrays */
+ int m_num_mds;
struct ceph_mds_info *m_info;
/* which object pools file data can be stored in */
static inline struct ceph_entity_addr *
ceph_mdsmap_get_addr(struct ceph_mdsmap *m, int w)
{
- if (w >= m->m_max_mds)
+ if (w >= m->m_num_mds)
return NULL;
return &m->m_info[w].addr;
}
static inline int ceph_mdsmap_get_state(struct ceph_mdsmap *m, int w)
{
BUG_ON(w < 0);
- if (w >= m->m_max_mds)
+ if (w >= m->m_num_mds)
return CEPH_MDS_STATE_DNE;
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)
+ if (w >= 0 && w < m->m_num_mds)
return m->m_info[w].laggy;
return false;
}