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| author | Sunil Mushran <sunil.mushran@oracle.com> | 2009-02-27 02:00:40 +0300 |
|---|---|---|
| committer | Mark Fasheh <mfasheh@suse.com> | 2009-04-03 22:39:18 +0400 |
| commit | e2b66ddcce922529e058cf74d839c4c49c8379a1 (patch) | |
| tree | d27e078e59c79624a2f7a1317c50934e543489f1 /fs/ocfs2 | |
| parent | c2cd4a44333034203cb198915e2b75c3227d41bf (diff) | |
| download | linux-e2b66ddcce922529e058cf74d839c4c49c8379a1.tar.xz | |
ocfs2/dlm: Create and destroy the dlm->master_hash
This patch adds code to create and destroy the dlm->master_hash.
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2')
| -rw-r--r-- | fs/ocfs2/dlm/dlmcommon.h | 8 | ||||
| -rw-r--r-- | fs/ocfs2/dlm/dlmdomain.c | 18 |
2 files changed, 26 insertions, 0 deletions
diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h index b232aa0b3345..425653f88e98 100644 --- a/fs/ocfs2/dlm/dlmcommon.h +++ b/fs/ocfs2/dlm/dlmcommon.h @@ -151,6 +151,7 @@ struct dlm_ctxt unsigned long recovery_map[BITS_TO_LONGS(O2NM_MAX_NODES)]; struct dlm_recovery_ctxt reco; spinlock_t master_lock; + struct hlist_head **master_hash; struct list_head master_list; struct list_head mle_hb_events; @@ -195,6 +196,13 @@ static inline struct hlist_head *dlm_lockres_hash(struct dlm_ctxt *dlm, unsigned return dlm->lockres_hash[(i / DLM_BUCKETS_PER_PAGE) % DLM_HASH_PAGES] + (i % DLM_BUCKETS_PER_PAGE); } +static inline struct hlist_head *dlm_master_hash(struct dlm_ctxt *dlm, + unsigned i) +{ + return dlm->master_hash[(i / DLM_BUCKETS_PER_PAGE) % DLM_HASH_PAGES] + + (i % DLM_BUCKETS_PER_PAGE); +} + /* these keventd work queue items are for less-frequently * called functions that cannot be directly called from the * net message handlers for some reason, usually because diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index d8d578f45613..45315046daf5 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -304,6 +304,9 @@ static void dlm_free_ctxt_mem(struct dlm_ctxt *dlm) if (dlm->lockres_hash) dlm_free_pagevec((void **)dlm->lockres_hash, DLM_HASH_PAGES); + if (dlm->master_hash) + dlm_free_pagevec((void **)dlm->master_hash, DLM_HASH_PAGES); + if (dlm->name) kfree(dlm->name); @@ -1534,12 +1537,27 @@ static struct dlm_ctxt *dlm_alloc_ctxt(const char *domain, for (i = 0; i < DLM_HASH_BUCKETS; i++) INIT_HLIST_HEAD(dlm_lockres_hash(dlm, i)); + dlm->master_hash = (struct hlist_head **) + dlm_alloc_pagevec(DLM_HASH_PAGES); + if (!dlm->master_hash) { + mlog_errno(-ENOMEM); + dlm_free_pagevec((void **)dlm->lockres_hash, DLM_HASH_PAGES); + kfree(dlm->name); + kfree(dlm); + dlm = NULL; + goto leave; + } + + for (i = 0; i < DLM_HASH_BUCKETS; i++) + INIT_HLIST_HEAD(dlm_master_hash(dlm, i)); + strcpy(dlm->name, domain); dlm->key = key; dlm->node_num = o2nm_this_node(); ret = dlm_create_debugfs_subroot(dlm); if (ret < 0) { + dlm_free_pagevec((void **)dlm->master_hash, DLM_HASH_PAGES); dlm_free_pagevec((void **)dlm->lockres_hash, DLM_HASH_PAGES); kfree(dlm->name); kfree(dlm); |