From 597d0cae0f99f62501e229bed50e8149604015bb Mon Sep 17 00:00:00 2001 From: David Teigland Date: Wed, 12 Jul 2006 16:44:04 -0500 Subject: [DLM] dlm: user locks This changes the way the dlm handles user locks. The core dlm is now aware of user locks so they can be dealt with more efficiently. There is no more dlm_device module which previously managed its own duplicate copy of every user lock. Signed-off-by: Patrick Caulfield Signed-off-by: David Teigland Signed-off-by: Steven Whitehouse --- fs/dlm/lockspace.c | 32 +++++++++++++++++++++++++++++--- 1 file changed, 29 insertions(+), 3 deletions(-) (limited to 'fs/dlm/lockspace.c') diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c index 9ed4b70348fb..3f6cb422ac4b 100644 --- a/fs/dlm/lockspace.c +++ b/fs/dlm/lockspace.c @@ -270,12 +270,36 @@ struct dlm_ls *dlm_find_lockspace_global(uint32_t id) return ls; } -struct dlm_ls *dlm_find_lockspace_local(void *id) +struct dlm_ls *dlm_find_lockspace_local(dlm_lockspace_t *lockspace) { - struct dlm_ls *ls = id; + struct dlm_ls *ls; spin_lock(&lslist_lock); - ls->ls_count++; + list_for_each_entry(ls, &lslist, ls_list) { + if (ls->ls_local_handle == lockspace) { + ls->ls_count++; + goto out; + } + } + ls = NULL; + out: + spin_unlock(&lslist_lock); + return ls; +} + +struct dlm_ls *dlm_find_lockspace_device(int minor) +{ + struct dlm_ls *ls; + + spin_lock(&lslist_lock); + list_for_each_entry(ls, &lslist, ls_list) { + if (ls->ls_device.minor == minor) { + ls->ls_count++; + goto out; + } + } + ls = NULL; + out: spin_unlock(&lslist_lock); return ls; } @@ -436,6 +460,7 @@ static int new_lockspace(char *name, int namelen, void **lockspace, init_rwsem(&ls->ls_in_recovery); INIT_LIST_HEAD(&ls->ls_requestqueue); mutex_init(&ls->ls_requestqueue_mutex); + mutex_init(&ls->ls_clear_proc_locks); ls->ls_recover_buf = kmalloc(dlm_config.buffer_size, GFP_KERNEL); if (!ls->ls_recover_buf) @@ -444,6 +469,7 @@ static int new_lockspace(char *name, int namelen, void **lockspace, INIT_LIST_HEAD(&ls->ls_recover_list); spin_lock_init(&ls->ls_recover_list_lock); ls->ls_recover_list_count = 0; + ls->ls_local_handle = ls; init_waitqueue_head(&ls->ls_wait_general); INIT_LIST_HEAD(&ls->ls_root_list); init_rwsem(&ls->ls_root_sem); -- cgit v1.2.3