static inline struct cl_device *lu2cl_dev(const struct lu_device *d)
{
- LASSERT(d == NULL || IS_ERR(d) || lu_device_is_cl(d));
+ LASSERT(!d || IS_ERR(d) || lu_device_is_cl(d));
return container_of0(d, struct cl_device, cd_lu_dev);
}
static inline struct cl_object *lu2cl(const struct lu_object *o)
{
- LASSERT(o == NULL || IS_ERR(o) || lu_device_is_cl(o->lo_dev));
+ LASSERT(!o || IS_ERR(o) || lu_device_is_cl(o->lo_dev));
return container_of0(o, struct cl_object, co_lu);
}
static inline struct cl_device *cl_object_device(const struct cl_object *o)
{
- LASSERT(o == NULL || IS_ERR(o) || lu_device_is_cl(o->co_lu.lo_dev));
+ LASSERT(!o || IS_ERR(o) || lu_device_is_cl(o->co_lu.lo_dev));
return container_of0(o->co_lu.lo_dev, struct cl_device, cd_lu_dev);
}
struct ccc_thread_info *info;
info = lu_context_key_get(&env->le_ctx, &ccc_key);
- LASSERT(info != NULL);
+ LASSERT(info);
return info;
}
struct ccc_session *ses;
ses = lu_context_key_get(env->le_ses, &ccc_session_key);
- LASSERT(ses != NULL);
+ LASSERT(ses);
return ses;
}
while (1) {
if (spin_trylock(&lock->lock)) {
- LASSERT(lock->task == NULL);
+ LASSERT(!lock->task);
lock->task = current;
lock->func = func;
lock->line = line;
time_before(lock->time + 5 * HZ, jiffies)) {
struct task_struct *task = lock->task;
- if (task == NULL)
+ if (!task)
continue;
LCONSOLE_WARN("%s:%d: lock %p was acquired by <%s:%d:%s:%d> for %lu seconds.\n",
static inline void client_obd_list_unlock(client_obd_lock_t *lock)
{
- LASSERT(lock->task != NULL);
+ LASSERT(lock->task);
lock->task = NULL;
lock->time = jiffies;
spin_unlock(&lock->lock);
} else {
unsigned int cpuid = get_cpu();
- if (unlikely(stats->ls_percpu[cpuid] == NULL)) {
+ if (unlikely(!stats->ls_percpu[cpuid])) {
rc = lprocfs_stats_alloc_one(stats, cpuid);
if (rc < 0) {
put_cpu();
unsigned long flags = 0;
__u64 ret = 0;
- LASSERT(stats != NULL);
+ LASSERT(stats);
num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
for (i = 0; i < num_cpu; i++) {
- if (stats->ls_percpu[i] == NULL)
+ if (!stats->ls_percpu[i])
continue;
ret += lprocfs_read_helper(
lprocfs_stats_counter_get(stats, i, idx),
static inline int lu_device_is_md(const struct lu_device *d)
{
- return ergo(d != NULL, d->ld_type->ldt_tags & LU_DEVICE_MD);
+ return ergo(d, d->ld_type->ldt_tags & LU_DEVICE_MD);
}
/**
CLASSERT(PAGE_CACHE_SIZE >= sizeof (*value)); \
\
value = kzalloc(sizeof(*value), GFP_NOFS); \
- if (value == NULL) \
+ if (!value) \
value = ERR_PTR(-ENOMEM); \
\
return value; \
do { \
LU_CONTEXT_KEY_INIT(key); \
key = va_arg(args, struct lu_context_key *); \
- } while (key != NULL); \
+ } while (key); \
va_end(args); \
}
static inline int fid_is_sane(const struct lu_fid *fid)
{
- return fid != NULL &&
+ return fid &&
((fid_seq(fid) >= FID_SEQ_START && fid_ver(fid) == 0) ||
fid_is_igif(fid) || fid_is_idif(fid) ||
fid_seq_is_rsvd(fid_seq(fid)));
{
*wobdo = *lobdo;
wobdo->o_flags &= ~OBD_FL_LOCAL_MASK;
- if (ocd == NULL)
+ if (!ocd)
return;
if (unlikely(!(ocd->ocd_connect_flags & OBD_CONNECT_FID)) &&
lobdo->o_flags &= ~OBD_FL_LOCAL_MASK;
lobdo->o_flags |= local_flags;
}
- if (ocd == NULL)
+ if (!ocd)
return;
if (unlikely(!(ocd->ocd_connect_flags & OBD_CONNECT_FID)) &&
{
if (index >= LUSTRE_CFG_MAX_BUFCOUNT)
return;
- if (bufs == NULL)
+ if (!bufs)
return;
if (bufs->lcfg_bufcount <= index)
int offset;
int bufcount;
- LASSERT (lcfg != NULL);
LASSERT (index >= 0);
bufcount = lcfg->lcfg_bufcount;
return NULL;
s = lustre_cfg_buf(lcfg, index);
- if (s == NULL)
+ if (!s)
return NULL;
/*
*/
static inline int ns_connect_cancelset(struct ldlm_namespace *ns)
{
- LASSERT(ns != NULL);
return !!(ns->ns_connect_flags & OBD_CONNECT_CANCELSET);
}
*/
static inline int ns_connect_lru_resize(struct ldlm_namespace *ns)
{
- LASSERT(ns != NULL);
return !!(ns->ns_connect_flags & OBD_CONNECT_LRU_RESIZE);
}
static inline void ns_register_cancel(struct ldlm_namespace *ns,
ldlm_cancel_for_recovery arg)
{
- LASSERT(ns != NULL);
ns->ns_cancel_for_recovery = arg;
}
{
struct ldlm_namespace *ns = ldlm_res_to_ns(res);
- if (ns->ns_lvbo != NULL && ns->ns_lvbo->lvbo_init != NULL)
+ if (ns->ns_lvbo && ns->ns_lvbo->lvbo_init)
return ns->ns_lvbo->lvbo_init(res);
return 0;
{
struct ldlm_namespace *ns = ldlm_lock_to_ns(lock);
- if (ns->ns_lvbo != NULL && ns->ns_lvbo->lvbo_size != NULL)
+ if (ns->ns_lvbo && ns->ns_lvbo->lvbo_size)
return ns->ns_lvbo->lvbo_size(lock);
return 0;
{
struct ldlm_namespace *ns = ldlm_lock_to_ns(lock);
- if (ns->ns_lvbo != NULL) {
- LASSERT(ns->ns_lvbo->lvbo_fill != NULL);
+ if (ns->ns_lvbo)
return ns->ns_lvbo->lvbo_fill(lock, buf, len);
- }
+
return 0;
}
/** Non-rate-limited lock printing function for debugging purposes. */
#define LDLM_DEBUG(lock, fmt, a...) do { \
- if (likely(lock != NULL)) { \
+ if (likely(lock)) { \
LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_DLMTRACE, NULL); \
ldlm_lock_debug(&msgdata, D_DLMTRACE, NULL, lock, \
"### " fmt, ##a); \
struct ldlm_lock *lock;
lock = __ldlm_handle2lock(h, flags);
- if (lock != NULL)
+ if (lock)
LDLM_LOCK_REF_DEL(lock);
return lock;
}
static inline int exp_max_brw_size(struct obd_export *exp)
{
- LASSERT(exp != NULL);
if (exp_connect_flags(exp) & OBD_CONNECT_BRW_SIZE)
return exp->exp_connect_data.ocd_brw_size;
static inline int exp_connect_cancelset(struct obd_export *exp)
{
- LASSERT(exp != NULL);
return !!(exp_connect_flags(exp) & OBD_CONNECT_CANCELSET);
}
static inline int exp_connect_lru_resize(struct obd_export *exp)
{
- LASSERT(exp != NULL);
return !!(exp_connect_flags(exp) & OBD_CONNECT_LRU_RESIZE);
}
static inline int exp_connect_rmtclient(struct obd_export *exp)
{
- LASSERT(exp != NULL);
return !!(exp_connect_flags(exp) & OBD_CONNECT_RMT_CLIENT);
}
static inline int exp_connect_vbr(struct obd_export *exp)
{
- LASSERT(exp != NULL);
- LASSERT(exp->exp_connection);
return !!(exp_connect_flags(exp) & OBD_CONNECT_VBR);
}
static inline int exp_connect_som(struct obd_export *exp)
{
- LASSERT(exp != NULL);
return !!(exp_connect_flags(exp) & OBD_CONNECT_SOM);
}
{
struct obd_connect_data *ocd;
- LASSERT(imp != NULL);
ocd = &imp->imp_connect_data;
return !!(ocd->ocd_connect_flags & OBD_CONNECT_LRU_RESIZE);
}
static inline bool exp_connect_lvb_type(struct obd_export *exp)
{
- LASSERT(exp != NULL);
if (exp_connect_flags(exp) & OBD_CONNECT_LVB_TYPE)
return true;
else
{
struct obd_connect_data *ocd;
- LASSERT(imp != NULL);
ocd = &imp->imp_connect_data;
if (ocd->ocd_connect_flags & OBD_CONNECT_LVB_TYPE)
return true;
{
struct obd_connect_data *ocd;
- LASSERT(imp != NULL);
ocd = &imp->imp_connect_data;
return ocd->ocd_connect_flags & OBD_CONNECT_DISP_STRIPE;
}
l_add_wait(&wq, &__wait); \
\
/* Block all signals (just the non-fatal ones if no timeout). */ \
- if (info->lwi_on_signal != NULL && (__timeout == 0 || __allow_intr)) \
+ if (info->lwi_on_signal && (__timeout == 0 || __allow_intr)) \
__blocked = cfs_block_sigsinv(LUSTRE_FATAL_SIGS); \
else \
__blocked = cfs_block_sigsinv(0); \
__timeout = cfs_time_sub(__timeout, \
cfs_time_sub(interval, remaining));\
if (__timeout == 0) { \
- if (info->lwi_on_timeout == NULL || \
+ if (!info->lwi_on_timeout || \
info->lwi_on_timeout(info->lwi_cb_data)) { \
ret = -ETIMEDOUT; \
break; \
} \
/* Take signals after the timeout expires. */ \
- if (info->lwi_on_signal != NULL) \
+ if (info->lwi_on_signal) \
(void)cfs_block_sigsinv(LUSTRE_FATAL_SIGS);\
} \
} \
if (condition) \
break; \
if (cfs_signal_pending()) { \
- if (info->lwi_on_signal != NULL && \
+ if (info->lwi_on_signal && \
(__timeout == 0 || __allow_intr)) { \
if (info->lwi_on_signal != LWI_ON_SIGNAL_NOOP) \
info->lwi_on_signal(info->lwi_cb_data);\
static inline int llog_handle2ops(struct llog_handle *loghandle,
struct llog_operations **lop)
{
- if (loghandle == NULL || loghandle->lgh_logops == NULL)
+ if (!loghandle || !loghandle->lgh_logops)
return -EINVAL;
*lop = loghandle->lgh_logops;
static inline void llog_ctxt_put(struct llog_ctxt *ctxt)
{
- if (ctxt == NULL)
+ if (!ctxt)
return;
LASSERT_ATOMIC_GT_LT(&ctxt->loc_refcount, 0, LI_POISON);
CDEBUG(D_INFO, "PUTting ctxt %p : new refcount %d\n", ctxt,
LASSERT(index >= 0 && index < LLOG_MAX_CTXTS);
spin_lock(&olg->olg_lock);
- if (olg->olg_ctxts[index] != NULL) {
+ if (olg->olg_ctxts[index]) {
spin_unlock(&olg->olg_lock);
return -EEXIST;
}
LASSERT(index >= 0 && index < LLOG_MAX_CTXTS);
spin_lock(&olg->olg_lock);
- if (olg->olg_ctxts[index] == NULL)
+ if (!olg->olg_ctxts[index])
ctxt = NULL;
else
ctxt = llog_ctxt_get(olg->olg_ctxts[index]);
static inline int llog_group_ctxt_null(struct obd_llog_group *olg, int index)
{
- return (olg->olg_ctxts[index] == NULL);
+ return (!olg->olg_ctxts[index]);
}
static inline int llog_ctxt_null(struct obd_device *obd, int index)
rc = llog_handle2ops(loghandle, &lop);
if (rc)
return rc;
- if (lop->lop_next_block == NULL)
+ if (!lop->lop_next_block)
return -EOPNOTSUPP;
rc = lop->lop_next_block(env, loghandle, cur_idx, next_idx,
static inline void mdc_get_rpc_lock(struct mdc_rpc_lock *lck,
struct lookup_intent *it)
{
- if (it != NULL && (it->it_op == IT_GETATTR || it->it_op == IT_LOOKUP ||
- it->it_op == IT_LAYOUT))
+ if (it && (it->it_op == IT_GETATTR || it->it_op == IT_LOOKUP ||
+ it->it_op == IT_LAYOUT))
return;
/* This would normally block until the existing request finishes.
goto again;
}
- LASSERT(lck->rpcl_it == NULL);
+ LASSERT(!lck->rpcl_it);
lck->rpcl_it = it;
}
static inline void mdc_put_rpc_lock(struct mdc_rpc_lock *lck,
struct lookup_intent *it)
{
- if (it != NULL && (it->it_op == IT_GETATTR || it->it_op == IT_LOOKUP ||
- it->it_op == IT_LAYOUT))
+ if (it && (it->it_op == IT_GETATTR || it->it_op == IT_LOOKUP ||
+ it->it_op == IT_LAYOUT))
return;
if (lck->rpcl_it == MDC_FAKE_RPCL_IT) { /* OBD_FAIL_MDC_RPCS_SEM */
static inline int ptlrpc_req_interpret(const struct lu_env *env,
struct ptlrpc_request *req, int rc)
{
- if (req->rq_interpret_reply != NULL) {
+ if (req->rq_interpret_reply) {
req->rq_status = req->rq_interpret_reply(env, req,
&req->rq_async_args,
rc);
#define ptlrpc_service_for_each_part(part, i, svc) \
for (i = 0; \
i < (svc)->srv_ncpts && \
- (svc)->srv_parts != NULL && \
- ((part) = (svc)->srv_parts[i]) != NULL; i++)
+ (svc)->srv_parts && \
+ ((part) = (svc)->srv_parts[i]); i++)
/**
* Declaration of ptlrpcd control structure
static inline bool nrs_policy_compat_one(const struct ptlrpc_service *svc,
const struct ptlrpc_nrs_pol_desc *desc)
{
- LASSERT(desc->pd_compat_svc_name != NULL);
return strcmp(svc->srv_name, desc->pd_compat_svc_name) == 0;
}
struct ptlrpc_bulk_desc *desc;
int rc;
- LASSERT(req != NULL);
desc = req->rq_bulk;
if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_BULK_UNLINK) &&
static inline void
ptlrpc_client_wake_req(struct ptlrpc_request *req)
{
- if (req->rq_set == NULL)
+ if (!req->rq_set)
wake_up(&req->rq_reply_waitq);
else
wake_up(&req->rq_set->set_waitq);
/* Should only be called once per req */
static inline void ptlrpc_req_drop_rs(struct ptlrpc_request *req)
{
- if (req->rq_reply_state == NULL)
+ if (!req->rq_reply_state)
return; /* shouldn't occur */
ptlrpc_rs_decref(req->rq_reply_state);
req->rq_reply_state = NULL;
static inline struct ptlrpc_service *
ptlrpc_req2svc(struct ptlrpc_request *req)
{
- LASSERT(req->rq_rqbd != NULL);
return req->rq_rqbd->rqbd_svcpt->scp_service;
}
static inline bool lsm_has_objects(struct lov_stripe_md *lsm)
{
- if (lsm == NULL)
+ if (!lsm)
return false;
if (lsm_is_released(lsm))
return false;
struct md_open_data *mod;
mod = kzalloc(sizeof(*mod), GFP_NOFS);
- if (mod == NULL)
+ if (!mod)
return NULL;
atomic_set(&mod->mod_refcount, 1);
return mod;
return false;
/* caller does not care of idx */
- if (idx == NULL)
+ if (!idx)
return true;
/* volatile file, the MDT can be set from name */
static inline int cli_brw_size(struct obd_device *obd)
{
- LASSERT(obd != NULL);
return obd->u.cli.cl_max_pages_per_rpc << PAGE_CACHE_SHIFT;
}
/ sizeof(((struct obd_ops *)(0))->iocontrol))
#define OBD_COUNTER_INCREMENT(obdx, op) \
- if ((obdx)->obd_stats != NULL) { \
+ if ((obdx)->obd_stats) { \
unsigned int coffset; \
coffset = (unsigned int)((obdx)->obd_cntr_base) + \
OBD_COUNTER_OFFSET(op); \
}
#define EXP_COUNTER_INCREMENT(export, op) \
- if ((export)->exp_obd->obd_stats != NULL) { \
+ if ((export)->exp_obd->obd_stats) { \
unsigned int coffset; \
coffset = (unsigned int)((export)->exp_obd->obd_cntr_base) + \
OBD_COUNTER_OFFSET(op); \
/ sizeof(((struct md_ops *)(0))->getstatus))
#define MD_COUNTER_INCREMENT(obdx, op) \
- if ((obd)->md_stats != NULL) { \
+ if ((obd)->md_stats) { \
unsigned int coffset; \
coffset = (unsigned int)((obdx)->md_cntr_base) + \
MD_COUNTER_OFFSET(op); \
}
#define EXP_MD_COUNTER_INCREMENT(export, op) \
- if ((export)->exp_obd->obd_stats != NULL) { \
+ if ((export)->exp_obd->obd_stats) { \
unsigned int coffset; \
coffset = (unsigned int)((export)->exp_obd->md_cntr_base) + \
MD_COUNTER_OFFSET(op); \
LASSERT(coffset < (export)->exp_obd->md_stats->ls_num); \
lprocfs_counter_incr((export)->exp_obd->md_stats, coffset); \
- if ((export)->exp_md_stats != NULL) \
+ if ((export)->exp_md_stats) \
lprocfs_counter_incr( \
(export)->exp_md_stats, coffset); \
}
#define EXP_CHECK_MD_OP(exp, op) \
do { \
- if ((exp) == NULL) { \
+ if (!(exp)) { \
CERROR("obd_" #op ": NULL export\n"); \
return -ENODEV; \
} \
- if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
+ if (!(exp)->exp_obd || !OBT((exp)->exp_obd)) { \
CERROR("obd_" #op ": cleaned up obd\n"); \
return -EOPNOTSUPP; \
} \
#define EXP_CHECK_DT_OP(exp, op) \
do { \
- if ((exp) == NULL) { \
+ if (!(exp)) { \
CERROR("obd_" #op ": NULL export\n"); \
return -ENODEV; \
} \
- if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
+ if (!(exp)->exp_obd || !OBT((exp)->exp_obd)) { \
CERROR("obd_" #op ": cleaned up obd\n"); \
return -EOPNOTSUPP; \
} \
DECLARE_LU_VARS(ldt, d);
ldt = obd->obd_type->typ_lu;
- if (ldt != NULL) {
+ if (ldt) {
struct lu_context session_ctx;
struct lu_env env;
return rc;
ldt = obd->obd_type->typ_lu;
d = obd->obd_lu_dev;
- if (ldt != NULL && d != NULL) {
+ if (ldt && d) {
if (cleanup_stage == OBD_CLEANUP_EXPORTS) {
struct lu_env env;
ldt = obd->obd_type->typ_lu;
d = obd->obd_lu_dev;
- if (ldt != NULL && d != NULL) {
+ if (ldt && d) {
struct lu_env env;
rc = lu_env_init(&env, ldt->ldt_ctx_tags);
obd->obd_process_conf = 1;
ldt = obd->obd_type->typ_lu;
d = obd->obd_lu_dev;
- if (ldt != NULL && d != NULL) {
+ if (ldt && d) {
struct lu_env env;
rc = lu_env_init(&env, ldt->ldt_ctx_tags);
struct lov_stripe_md **mem_tgt)
{
LASSERT(mem_tgt);
- LASSERT(*mem_tgt == NULL);
+ LASSERT(!*mem_tgt);
return obd_unpackmd(exp, mem_tgt, NULL, 0);
}
EXP_COUNTER_INCREMENT(exp, setattr_async);
set = ptlrpc_prep_set();
- if (set == NULL)
+ if (!set)
return -ENOMEM;
rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
rc = OBP(obd, connect)(env, exp, obd, cluuid, data, localdata);
/* check that only subset is granted */
- LASSERT(ergo(data != NULL, (data->ocd_connect_flags & ocf) ==
+ LASSERT(ergo(data, (data->ocd_connect_flags & ocf) ==
data->ocd_connect_flags));
return rc;
}
rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
/* check that only subset is granted */
- LASSERT(ergo(d != NULL,
- (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
+ LASSERT(ergo(d, (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
return rc;
}
{
int rc = 0;
- if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
+ if ((exp)->exp_obd && OBT((exp)->exp_obd) &&
OBP((exp)->exp_obd, init_export))
rc = OBP(exp->exp_obd, init_export)(exp);
return rc;
static inline int obd_destroy_export(struct obd_export *exp)
{
- if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
+ if ((exp)->exp_obd && OBT((exp)->exp_obd) &&
OBP((exp)->exp_obd, destroy_export))
OBP(exp->exp_obd, destroy_export)(exp);
return 0;
int rc = 0;
struct obd_device *obd;
- if (exp == NULL || exp->exp_obd == NULL)
+ if (!exp || !exp->exp_obd)
return -EINVAL;
obd = exp->exp_obd;
int rc = 0;
set = ptlrpc_prep_set();
- if (set == NULL)
+ if (!set)
return -ENOMEM;
oinfo.oi_osfs = osfs;
int rc = 0;
struct obd_device *obd = exp->exp_obd;
- if (obd == NULL)
+ if (!obd)
return -EINVAL;
OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
* Also, call non-obd listener, if any
*/
onu = &observer->obd_upcall;
- if (onu->onu_upcall != NULL)
+ if (onu->onu_upcall)
rc2 = onu->onu_upcall(observer, observed, ev,
onu->onu_owner, NULL);
else
int rc;
/* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
- if (obd == NULL || !OBT(obd)) {
+ if (!obd || !OBT(obd)) {
CERROR("cleaned up obd\n");
return -EOPNOTSUPP;
}
do { \
struct portals_handle *__h = (handle); \
\
- LASSERT(handle != NULL); \
__h->h_cookie = (unsigned long)(ptr); \
__h->h_size = (size); \
call_rcu(&__h->h_rcu, class_handle_free_cb); \
git.samba.org / sfrench / cifs-2.6.git / commitdiff