*/
static void osc_lock_detach(const struct lu_env *env, struct osc_lock *olck)
{
- struct ldlm_lock *dlmlock;
+ struct ldlm_lock *dlmlock;
- cfs_spin_lock(&osc_ast_guard);
- dlmlock = olck->ols_lock;
- if (dlmlock == NULL) {
- cfs_spin_unlock(&osc_ast_guard);
+ spin_lock(&osc_ast_guard);
+ dlmlock = olck->ols_lock;
+ if (dlmlock == NULL) {
+ spin_unlock(&osc_ast_guard);
return;
}
* call to osc_lock_detach() */
dlmlock->l_ast_data = NULL;
olck->ols_handle.cookie = 0ULL;
- cfs_spin_unlock(&osc_ast_guard);
+ spin_unlock(&osc_ast_guard);
lock_res_and_lock(dlmlock);
if (dlmlock->l_granted_mode == dlmlock->l_req_mode) {
* Global spin-lock protecting consistency of ldlm_lock::l_ast_data
* pointers. Initialized in osc_init().
*/
-cfs_spinlock_t osc_ast_guard;
+spinlock_t osc_ast_guard;
static struct osc_lock *osc_ast_data_get(struct ldlm_lock *dlm_lock)
{
- struct osc_lock *olck;
+ struct osc_lock *olck;
- lock_res_and_lock(dlm_lock);
- cfs_spin_lock(&osc_ast_guard);
+ lock_res_and_lock(dlm_lock);
+ spin_lock(&osc_ast_guard);
olck = dlm_lock->l_ast_data;
if (olck != NULL) {
struct cl_lock *lock = olck->ols_cl.cls_lock;
} else
olck = NULL;
}
- cfs_spin_unlock(&osc_ast_guard);
- unlock_res_and_lock(dlm_lock);
- return olck;
+ spin_unlock(&osc_ast_guard);
+ unlock_res_and_lock(dlm_lock);
+ return olck;
}
static void osc_ast_data_put(const struct lu_env *env, struct osc_lock *olck)
LASSERT(dlmlock != NULL);
lock_res_and_lock(dlmlock);
- cfs_spin_lock(&osc_ast_guard);
- LASSERT(dlmlock->l_ast_data == olck);
- LASSERT(olck->ols_lock == NULL);
- olck->ols_lock = dlmlock;
- cfs_spin_unlock(&osc_ast_guard);
+ spin_lock(&osc_ast_guard);
+ LASSERT(dlmlock->l_ast_data == olck);
+ LASSERT(olck->ols_lock == NULL);
+ olck->ols_lock = dlmlock;
+ spin_unlock(&osc_ast_guard);
/*
* Lock might be not yet granted. In this case, completion ast
dlmlock = ldlm_handle2lock(&olck->ols_handle);
if (dlmlock != NULL) {
lock_res_and_lock(dlmlock);
- cfs_spin_lock(&osc_ast_guard);
- LASSERT(olck->ols_lock == NULL);
- dlmlock->l_ast_data = NULL;
- olck->ols_handle.cookie = 0ULL;
- cfs_spin_unlock(&osc_ast_guard);
+ spin_lock(&osc_ast_guard);
+ LASSERT(olck->ols_lock == NULL);
+ dlmlock->l_ast_data = NULL;
+ olck->ols_handle.cookie = 0ULL;
+ spin_unlock(&osc_ast_guard);
ldlm_lock_fail_match_locked(dlmlock);
unlock_res_and_lock(dlmlock);
LDLM_LOCK_PUT(dlmlock);
struct osc_lock *ols, int force)
{
struct cl_lock_slice *slice = &ols->ols_cl;
- struct cl_lock *lock = slice->cls_lock;
LASSERT(ols->ols_state == OLS_NEW ||
ols->ols_state == OLS_UPCALL_RECEIVED);
if (force) {
ols->ols_locklessable = 1;
- LASSERT(cl_lock_is_mutexed(lock));
slice->cls_ops = &osc_lock_lockless_ops;
} else {
struct osc_io *oio = osc_env_io(env);
if (olck->ols_glimpse)
return 0;
- cfs_spin_lock(&hdr->coh_lock_guard);
+ spin_lock(&hdr->coh_lock_guard);
cfs_list_for_each_entry(scan, &hdr->coh_locks, cll_linkage) {
struct cl_lock_descr *cld = &scan->cll_descr;
const struct osc_lock *scan_ols;
conflict = scan;
break;
}
- cfs_spin_unlock(&hdr->coh_lock_guard);
+ spin_unlock(&hdr->coh_lock_guard);
if (conflict) {
if (lock->cll_descr.cld_mode == CLM_GROUP) {
LASSERTF(ols->ols_state == OLS_NEW,
"Impossible state: %d\n", ols->ols_state);
- ols->ols_flags = osc_enq2ldlm_flags(enqflags);
- if (enqflags & CEF_AGL) {
- ols->ols_flags |= LDLM_FL_BLOCK_NOWAIT;
- ols->ols_agl = 1;
- } else {
- ols->ols_agl = 0;
- }
- if (ols->ols_flags & LDLM_FL_HAS_INTENT)
- ols->ols_glimpse = 1;
- if (!osc_lock_is_lockless(ols) && !(enqflags & CEF_MUST))
- /* try to convert this lock to a lockless lock */
- osc_lock_to_lockless(env, ols, (enqflags & CEF_NEVER));
+ LASSERTF(ergo(ols->ols_glimpse, lock->cll_descr.cld_mode <= CLM_READ),
+ "lock = %p, ols = %p\n", lock, ols);
result = osc_lock_enqueue_wait(env, ols);
if (result == 0) {
ldlm_policy_data_t *policy = &info->oti_policy;
struct ldlm_enqueue_info *einfo = &ols->ols_einfo;
- if (ols->ols_locklessable)
- ols->ols_flags |= LDLM_FL_DENY_ON_CONTENTION;
-
/* lock will be passed as upcall cookie,
* hold ref to prevent to be released. */
cl_lock_hold_add(env, lock, "upcall", lock);
int rc;
LASSERT(olck->ols_agl);
-
+ olck->ols_agl = 0;
rc = osc_lock_enqueue(env, slice, NULL, CEF_ASYNC | CEF_MUST);
if (rc != 0)
return rc;
int do_cancel;
discard = !!(dlmlock->l_flags & LDLM_FL_DISCARD_DATA);
- result = osc_lock_flush(olck, discard);
+ if (olck->ols_state >= OLS_GRANTED)
+ result = osc_lock_flush(olck, discard);
osc_lock_unhold(olck);
lock_res_and_lock(dlmlock);
lock = olck->ols_cl.cls_lock;
descr = &lock->cll_descr;
- cfs_mutex_lock(&oob->oo_debug_mutex);
+ mutex_lock(&oob->oo_debug_mutex);
io->ci_obj = cl_object_top(obj);
io->ci_ignore_layout = 1;
cfs_cond_resched();
} while (result != CLP_GANG_OKAY);
cl_io_fini(env, io);
- cfs_mutex_unlock(&oob->oo_debug_mutex);
+ mutex_unlock(&oob->oo_debug_mutex);
cl_env_nested_put(&nest, env);
return (result == CLP_GANG_ABORT);
OBD_SLAB_ALLOC_PTR_GFP(clk, osc_lock_kmem, CFS_ALLOC_IO);
if (clk != NULL) {
- osc_lock_build_einfo(env, lock, clk, &clk->ols_einfo);
- cfs_atomic_set(&clk->ols_pageref, 0);
- clk->ols_state = OLS_NEW;
- cl_lock_slice_add(lock, &clk->ols_cl, obj, &osc_lock_ops);
+ __u32 enqflags = lock->cll_descr.cld_enq_flags;
+
+ osc_lock_build_einfo(env, lock, clk, &clk->ols_einfo);
+ cfs_atomic_set(&clk->ols_pageref, 0);
+ clk->ols_state = OLS_NEW;
+
+ clk->ols_flags = osc_enq2ldlm_flags(enqflags);
+ clk->ols_agl = !!(enqflags & CEF_AGL);
+ if (clk->ols_agl)
+ clk->ols_flags |= LDLM_FL_BLOCK_NOWAIT;
+ if (clk->ols_flags & LDLM_FL_HAS_INTENT)
+ clk->ols_glimpse = 1;
+
+ cl_lock_slice_add(lock, &clk->ols_cl, obj, &osc_lock_ops);
+
+ if (!(enqflags & CEF_MUST))
+ /* try to convert this lock to a lockless lock */
+ osc_lock_to_lockless(env, clk, (enqflags & CEF_NEVER));
+ if (clk->ols_locklessable && !(enqflags & CEF_DISCARD_DATA))
+ clk->ols_flags |= LDLM_FL_DENY_ON_CONTENTION;
+
result = 0;
} else
result = -ENOMEM;
int osc_dlm_lock_pageref(struct ldlm_lock *dlm)
{
- struct osc_lock *olock;
- int rc = 0;
+ struct osc_lock *olock;
+ int rc = 0;
- cfs_spin_lock(&osc_ast_guard);
+ spin_lock(&osc_ast_guard);
olock = dlm->l_ast_data;
/*
* there's a very rare race with osc_page_addref_lock(), but that
cfs_atomic_sub(_PAGEREF_MAGIC, &olock->ols_pageref);
rc = 1;
}
- cfs_spin_unlock(&osc_ast_guard);
- return rc;
+ spin_unlock(&osc_ast_guard);
+ return rc;
}
/** @} osc */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff