From 71570b98e35d9f00a5ee9936204e5d7c380491d6 Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Thu, 1 Oct 2015 00:12:37 -0400 Subject: [PATCH] staging/lustre: Remove ns_is_server() Since the code we have is Lustre-client only, this function always returns 0, so drop it and amend all the callsites to drop dead code. One of the places also sets LDLM_FL_NS_SRV to indicate a lock is in a server namespace. This too cannot happen in this code, so drop all such checks as well. Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman --- .../staging/lustre/lustre/include/lustre_dlm.h | 13 ------------- drivers/staging/lustre/lustre/ldlm/l_lock.c | 7 ++----- drivers/staging/lustre/lustre/ldlm/ldlm_lock.c | 14 -------------- drivers/staging/lustre/lustre/ldlm/ldlm_pool.c | 16 ++-------------- 4 files changed, 4 insertions(+), 46 deletions(-) diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h index 1e40203f2b42..49b5a0742af8 100644 --- a/drivers/staging/lustre/lustre/include/lustre_dlm.h +++ b/drivers/staging/lustre/lustre/include/lustre_dlm.h @@ -464,19 +464,6 @@ struct ldlm_namespace { struct completion ns_kobj_unregister; }; -/** - * Returns 1 if namespace \a ns is a server namespace. - */ -static inline int ns_is_server(struct ldlm_namespace *ns) -{ - LASSERT(ns != NULL); - LASSERT(!(ns->ns_client & ~(LDLM_NAMESPACE_CLIENT | - LDLM_NAMESPACE_SERVER))); - LASSERT(ns->ns_client == LDLM_NAMESPACE_CLIENT || - ns->ns_client == LDLM_NAMESPACE_SERVER); - return ns->ns_client == LDLM_NAMESPACE_SERVER; -} - /** * Returns 1 if namespace \a ns supports early lock cancel (ELC). */ diff --git a/drivers/staging/lustre/lustre/ldlm/l_lock.c b/drivers/staging/lustre/lustre/ldlm/l_lock.c index cd8ab40e3267..e5d1344e817a 100644 --- a/drivers/staging/lustre/lustre/ldlm/l_lock.c +++ b/drivers/staging/lustre/lustre/ldlm/l_lock.c @@ -50,9 +50,7 @@ */ struct ldlm_resource *lock_res_and_lock(struct ldlm_lock *lock) { - /* on server-side resource of lock doesn't change */ - if ((lock->l_flags & LDLM_FL_NS_SRV) == 0) - spin_lock(&lock->l_lock); + spin_lock(&lock->l_lock); lock_res(lock->l_resource); @@ -70,7 +68,6 @@ void unlock_res_and_lock(struct ldlm_lock *lock) lock->l_flags &= ~LDLM_FL_RES_LOCKED; unlock_res(lock->l_resource); - if ((lock->l_flags & LDLM_FL_NS_SRV) == 0) - spin_unlock(&lock->l_lock); + spin_unlock(&lock->l_lock); } EXPORT_SYMBOL(unlock_res_and_lock); diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c index 6d5e7afaa3ae..827e5df71e4d 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c @@ -237,11 +237,6 @@ int ldlm_lock_remove_from_lru(struct ldlm_lock *lock) struct ldlm_namespace *ns = ldlm_lock_to_ns(lock); int rc; - if (lock->l_flags & LDLM_FL_NS_SRV) { - LASSERT(list_empty(&lock->l_lru)); - return 0; - } - spin_lock(&ns->ns_lock); rc = ldlm_lock_remove_from_lru_nolock(lock); spin_unlock(&ns->ns_lock); @@ -286,11 +281,6 @@ void ldlm_lock_touch_in_lru(struct ldlm_lock *lock) { struct ldlm_namespace *ns = ldlm_lock_to_ns(lock); - if (lock->l_flags & LDLM_FL_NS_SRV) { - LASSERT(list_empty(&lock->l_lru)); - return; - } - spin_lock(&ns->ns_lock); if (!list_empty(&lock->l_lru)) { ldlm_lock_remove_from_lru_nolock(lock); @@ -799,8 +789,6 @@ void ldlm_lock_decref_internal(struct ldlm_lock *lock, __u32 mode) (lock->l_flags & LDLM_FL_CBPENDING)) { /* If we received a blocked AST and this was the last reference, * run the callback. */ - if ((lock->l_flags & LDLM_FL_NS_SRV) && lock->l_export) - CERROR("FL_CBPENDING set on non-local lock--just a warning\n"); LDLM_DEBUG(lock, "final decref done on cbpending lock"); @@ -1486,8 +1474,6 @@ struct ldlm_lock *ldlm_lock_create(struct ldlm_namespace *ns, lock->l_req_mode = mode; lock->l_ast_data = data; lock->l_pid = current_pid(); - if (ns_is_server(ns)) - lock->l_flags |= LDLM_FL_NS_SRV; if (cbs) { lock->l_blocking_ast = cbs->lcs_blocking; lock->l_completion_ast = cbs->lcs_completion; diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c index 94cdf5f3ffda..dac1b6f9a90c 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c @@ -656,8 +656,8 @@ EXPORT_SYMBOL(ldlm_pool_setup); static int lprocfs_pool_state_seq_show(struct seq_file *m, void *unused) { - int granted, grant_rate, cancel_rate, grant_step; - int grant_speed, grant_plan, lvf; + int granted, grant_rate, cancel_rate; + int grant_speed, lvf; struct ldlm_pool *pl = m->private; __u64 slv, clv; __u32 limit; @@ -666,13 +666,11 @@ static int lprocfs_pool_state_seq_show(struct seq_file *m, void *unused) slv = pl->pl_server_lock_volume; clv = pl->pl_client_lock_volume; limit = ldlm_pool_get_limit(pl); - grant_plan = pl->pl_grant_plan; granted = atomic_read(&pl->pl_granted); grant_rate = atomic_read(&pl->pl_grant_rate); cancel_rate = atomic_read(&pl->pl_cancel_rate); grant_speed = grant_rate - cancel_rate; lvf = atomic_read(&pl->pl_lock_volume_factor); - grant_step = ldlm_pool_t2gsp(pl->pl_recalc_period); spin_unlock(&pl->pl_lock); seq_printf(m, "LDLM pool state (%s):\n" @@ -681,11 +679,6 @@ static int lprocfs_pool_state_seq_show(struct seq_file *m, void *unused) " LVF: %d\n", pl->pl_name, slv, clv, lvf); - if (ns_is_server(ldlm_pl2ns(pl))) { - seq_printf(m, " GSP: %d%%\n" - " GP: %d\n", - grant_step, grant_plan); - } seq_printf(m, " GR: %d\n CR: %d\n GS: %d\n" " G: %d\n L: %d\n", grant_rate, cancel_rate, grant_speed, @@ -966,8 +959,6 @@ void ldlm_pool_add(struct ldlm_pool *pl, struct ldlm_lock *lock) * enqueue/cancel rpc. Also we do not want to run out of stack * with too long call paths. */ - if (ns_is_server(ldlm_pl2ns(pl))) - ldlm_pool_recalc(pl); } EXPORT_SYMBOL(ldlm_pool_add); @@ -987,9 +978,6 @@ void ldlm_pool_del(struct ldlm_pool *pl, struct ldlm_lock *lock) atomic_inc(&pl->pl_cancel_rate); lprocfs_counter_incr(pl->pl_stats, LDLM_POOL_CANCEL_STAT); - - if (ns_is_server(ldlm_pl2ns(pl))) - ldlm_pool_recalc(pl); } EXPORT_SYMBOL(ldlm_pool_del); -- 2.30.2