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Commit cce3c2da authored by Oleg Drokin's avatar Oleg Drokin Committed by Greg Kroah-Hartman
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staging/lustre/obdclass: Adjust NULL comparison codestyle 

All instances of "x == NULL" are changed to "!x" and
"x != NULL" to "x"

Also remove some redundant assertions.
Signed-off-by: default avatarOleg Drokin <green@linuxhacker.ru>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent eb17cc24
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Showing with 267 additions and 294 deletions
drivers/staging/lustre/lustre/obdclass/acl.c
View file @ cce3c2da
...@@ -104,7 +104,7 @@ static int lustre_posix_acl_xattr_reduce_space(posix_acl_xattr_header **header, ...@@ -104,7 +104,7 @@ static int lustre_posix_acl_xattr_reduce_space(posix_acl_xattr_header **header,
return old_size; return old_size;
new = kmemdup(*header, new_size, GFP_NOFS); new = kmemdup(*header, new_size, GFP_NOFS);
if (unlikely(new == NULL)) if (unlikely(!new))
return -ENOMEM; return -ENOMEM;
kfree(*header); kfree(*header);
...@@ -124,7 +124,7 @@ static int lustre_ext_acl_xattr_reduce_space(ext_acl_xattr_header **header, ...@@ -124,7 +124,7 @@ static int lustre_ext_acl_xattr_reduce_space(ext_acl_xattr_header **header,
return 0; return 0;
new = kmemdup(*header, ext_size, GFP_NOFS); new = kmemdup(*header, ext_size, GFP_NOFS);
if (unlikely(new == NULL)) if (unlikely(!new))
return -ENOMEM; return -ENOMEM;
kfree(*header); kfree(*header);
...@@ -149,7 +149,7 @@ lustre_posix_acl_xattr_2ext(posix_acl_xattr_header *header, int size) ...@@ -149,7 +149,7 @@ lustre_posix_acl_xattr_2ext(posix_acl_xattr_header *header, int size)
count = CFS_ACL_XATTR_COUNT(size, posix_acl_xattr); count = CFS_ACL_XATTR_COUNT(size, posix_acl_xattr);
esize = CFS_ACL_XATTR_SIZE(count, ext_acl_xattr); esize = CFS_ACL_XATTR_SIZE(count, ext_acl_xattr);
new = kzalloc(esize, GFP_NOFS); new = kzalloc(esize, GFP_NOFS);
if (unlikely(new == NULL)) if (unlikely(!new))
return ERR_PTR(-ENOMEM); return ERR_PTR(-ENOMEM);
new->a_count = cpu_to_le32(count); new->a_count = cpu_to_le32(count);
...@@ -180,7 +180,7 @@ int lustre_posix_acl_xattr_filter(posix_acl_xattr_header *header, size_t size, ...@@ -180,7 +180,7 @@ int lustre_posix_acl_xattr_filter(posix_acl_xattr_header *header, size_t size,
return -EINVAL; return -EINVAL;
new = kzalloc(size, GFP_NOFS); new = kzalloc(size, GFP_NOFS);
if (unlikely(new == NULL)) if (unlikely(!new))
return -ENOMEM; return -ENOMEM;
new->a_version = cpu_to_le32(CFS_ACL_XATTR_VERSION); new->a_version = cpu_to_le32(CFS_ACL_XATTR_VERSION);
...@@ -300,7 +300,7 @@ lustre_acl_xattr_merge2ext(posix_acl_xattr_header *posix_header, int size, ...@@ -300,7 +300,7 @@ lustre_acl_xattr_merge2ext(posix_acl_xattr_header *posix_header, int size,
ext_size = CFS_ACL_XATTR_SIZE(ext_count, ext_acl_xattr); ext_size = CFS_ACL_XATTR_SIZE(ext_count, ext_acl_xattr);
new = kzalloc(ext_size, GFP_NOFS); new = kzalloc(ext_size, GFP_NOFS);
if (unlikely(new == NULL)) if (unlikely(!new))
return ERR_PTR(-ENOMEM); return ERR_PTR(-ENOMEM);
for (i = 0, j = 0; i < posix_count; i++) { for (i = 0, j = 0; i < posix_count; i++) {
......
drivers/staging/lustre/lustre/obdclass/cl_lock.c
View file @ cce3c2da
...@@ -96,7 +96,7 @@ static int cl_lock_invariant(const struct lu_env *env, ...@@ -96,7 +96,7 @@ static int cl_lock_invariant(const struct lu_env *env,
result = atomic_read(&lock->cll_ref) > 0 && result = atomic_read(&lock->cll_ref) > 0 &&
cl_lock_invariant_trusted(env, lock); cl_lock_invariant_trusted(env, lock);
if (!result && env != NULL) if (!result && env)
CL_LOCK_DEBUG(D_ERROR, env, lock, "invariant broken"); CL_LOCK_DEBUG(D_ERROR, env, lock, "invariant broken");
return result; return result;
} }
...@@ -288,7 +288,7 @@ void cl_lock_put(const struct lu_env *env, struct cl_lock *lock) ...@@ -288,7 +288,7 @@ void cl_lock_put(const struct lu_env *env, struct cl_lock *lock)
LINVRNT(cl_lock_invariant(env, lock)); LINVRNT(cl_lock_invariant(env, lock));
obj = lock->cll_descr.cld_obj; obj = lock->cll_descr.cld_obj;
LINVRNT(obj != NULL); LINVRNT(obj);
CDEBUG(D_TRACE, "releasing reference: %d %p %lu\n", CDEBUG(D_TRACE, "releasing reference: %d %p %lu\n",
atomic_read(&lock->cll_ref), lock, RETIP); atomic_read(&lock->cll_ref), lock, RETIP);
...@@ -362,7 +362,7 @@ static struct cl_lock *cl_lock_alloc(const struct lu_env *env, ...@@ -362,7 +362,7 @@ static struct cl_lock *cl_lock_alloc(const struct lu_env *env,
struct lu_object_header *head; struct lu_object_header *head;
lock = kmem_cache_alloc(cl_lock_kmem, GFP_NOFS | __GFP_ZERO); lock = kmem_cache_alloc(cl_lock_kmem, GFP_NOFS | __GFP_ZERO);
if (lock != NULL) { if (lock) {
atomic_set(&lock->cll_ref, 1); atomic_set(&lock->cll_ref, 1);
lock->cll_descr = *descr; lock->cll_descr = *descr;
lock->cll_state = CLS_NEW; lock->cll_state = CLS_NEW;
...@@ -461,7 +461,7 @@ static int cl_lock_fits_into(const struct lu_env *env, ...@@ -461,7 +461,7 @@ static int cl_lock_fits_into(const struct lu_env *env,
LINVRNT(cl_lock_invariant_trusted(env, lock)); LINVRNT(cl_lock_invariant_trusted(env, lock));
list_for_each_entry(slice, &lock->cll_layers, cls_linkage) { list_for_each_entry(slice, &lock->cll_layers, cls_linkage) {
if (slice->cls_ops->clo_fits_into != NULL && if (slice->cls_ops->clo_fits_into &&
!slice->cls_ops->clo_fits_into(env, slice, need, io)) !slice->cls_ops->clo_fits_into(env, slice, need, io))
return 0; return 0;
} }
...@@ -524,14 +524,14 @@ static struct cl_lock *cl_lock_find(const struct lu_env *env, ...@@ -524,14 +524,14 @@ static struct cl_lock *cl_lock_find(const struct lu_env *env,
lock = cl_lock_lookup(env, obj, io, need); lock = cl_lock_lookup(env, obj, io, need);
spin_unlock(&head->coh_lock_guard); spin_unlock(&head->coh_lock_guard);
if (lock == NULL) { if (!lock) {
lock = cl_lock_alloc(env, obj, io, need); lock = cl_lock_alloc(env, obj, io, need);
if (!IS_ERR(lock)) { if (!IS_ERR(lock)) {
struct cl_lock *ghost; struct cl_lock *ghost;
spin_lock(&head->coh_lock_guard); spin_lock(&head->coh_lock_guard);
ghost = cl_lock_lookup(env, obj, io, need); ghost = cl_lock_lookup(env, obj, io, need);
if (ghost == NULL) { if (!ghost) {
cl_lock_get_trust(lock); cl_lock_get_trust(lock);
list_add_tail(&lock->cll_linkage, list_add_tail(&lock->cll_linkage,
&head->coh_locks); &head->coh_locks);
...@@ -572,7 +572,7 @@ struct cl_lock *cl_lock_peek(const struct lu_env *env, const struct cl_io *io, ...@@ -572,7 +572,7 @@ struct cl_lock *cl_lock_peek(const struct lu_env *env, const struct cl_io *io,
spin_lock(&head->coh_lock_guard); spin_lock(&head->coh_lock_guard);
lock = cl_lock_lookup(env, obj, io, need); lock = cl_lock_lookup(env, obj, io, need);
spin_unlock(&head->coh_lock_guard); spin_unlock(&head->coh_lock_guard);
if (lock == NULL) if (!lock)
return NULL; return NULL;
cl_lock_mutex_get(env, lock); cl_lock_mutex_get(env, lock);
...@@ -584,7 +584,7 @@ struct cl_lock *cl_lock_peek(const struct lu_env *env, const struct cl_io *io, ...@@ -584,7 +584,7 @@ struct cl_lock *cl_lock_peek(const struct lu_env *env, const struct cl_io *io,
cl_lock_put(env, lock); cl_lock_put(env, lock);
lock = NULL; lock = NULL;
} }
} while (lock == NULL); } while (!lock);
cl_lock_hold_add(env, lock, scope, source); cl_lock_hold_add(env, lock, scope, source);
cl_lock_user_add(env, lock); cl_lock_user_add(env, lock);
...@@ -775,7 +775,7 @@ static void cl_lock_cancel0(const struct lu_env *env, struct cl_lock *lock) ...@@ -775,7 +775,7 @@ static void cl_lock_cancel0(const struct lu_env *env, struct cl_lock *lock)
lock->cll_flags |= CLF_CANCELLED; lock->cll_flags |= CLF_CANCELLED;
list_for_each_entry_reverse(slice, &lock->cll_layers, list_for_each_entry_reverse(slice, &lock->cll_layers,
cls_linkage) { cls_linkage) {
if (slice->cls_ops->clo_cancel != NULL) if (slice->cls_ops->clo_cancel)
slice->cls_ops->clo_cancel(env, slice); slice->cls_ops->clo_cancel(env, slice);
} }
} }
...@@ -812,7 +812,7 @@ static void cl_lock_delete0(const struct lu_env *env, struct cl_lock *lock) ...@@ -812,7 +812,7 @@ static void cl_lock_delete0(const struct lu_env *env, struct cl_lock *lock)
*/ */
list_for_each_entry_reverse(slice, &lock->cll_layers, list_for_each_entry_reverse(slice, &lock->cll_layers,
cls_linkage) { cls_linkage) {
if (slice->cls_ops->clo_delete != NULL) if (slice->cls_ops->clo_delete)
slice->cls_ops->clo_delete(env, slice); slice->cls_ops->clo_delete(env, slice);
} }
/* /*
...@@ -974,7 +974,7 @@ static void cl_lock_state_signal(const struct lu_env *env, struct cl_lock *lock, ...@@ -974,7 +974,7 @@ static void cl_lock_state_signal(const struct lu_env *env, struct cl_lock *lock,
LINVRNT(cl_lock_invariant(env, lock)); LINVRNT(cl_lock_invariant(env, lock));
list_for_each_entry(slice, &lock->cll_layers, cls_linkage) list_for_each_entry(slice, &lock->cll_layers, cls_linkage)
if (slice->cls_ops->clo_state != NULL) if (slice->cls_ops->clo_state)
slice->cls_ops->clo_state(env, slice, state); slice->cls_ops->clo_state(env, slice, state);
wake_up_all(&lock->cll_wq); wake_up_all(&lock->cll_wq);
} }
...@@ -1039,7 +1039,7 @@ static int cl_unuse_try_internal(const struct lu_env *env, struct cl_lock *lock) ...@@ -1039,7 +1039,7 @@ static int cl_unuse_try_internal(const struct lu_env *env, struct cl_lock *lock)
result = -ENOSYS; result = -ENOSYS;
list_for_each_entry_reverse(slice, &lock->cll_layers, list_for_each_entry_reverse(slice, &lock->cll_layers,
cls_linkage) { cls_linkage) {
if (slice->cls_ops->clo_unuse != NULL) { if (slice->cls_ops->clo_unuse) {
result = slice->cls_ops->clo_unuse(env, slice); result = slice->cls_ops->clo_unuse(env, slice);
if (result != 0) if (result != 0)
break; break;
...@@ -1072,7 +1072,7 @@ int cl_use_try(const struct lu_env *env, struct cl_lock *lock, int atomic) ...@@ -1072,7 +1072,7 @@ int cl_use_try(const struct lu_env *env, struct cl_lock *lock, int atomic)
result = -ENOSYS; result = -ENOSYS;
state = cl_lock_intransit(env, lock); state = cl_lock_intransit(env, lock);
list_for_each_entry(slice, &lock->cll_layers, cls_linkage) { list_for_each_entry(slice, &lock->cll_layers, cls_linkage) {
if (slice->cls_ops->clo_use != NULL) { if (slice->cls_ops->clo_use) {
result = slice->cls_ops->clo_use(env, slice); result = slice->cls_ops->clo_use(env, slice);
if (result != 0) if (result != 0)
break; break;
...@@ -1125,7 +1125,7 @@ static int cl_enqueue_kick(const struct lu_env *env, ...@@ -1125,7 +1125,7 @@ static int cl_enqueue_kick(const struct lu_env *env,
result = -ENOSYS; result = -ENOSYS;
list_for_each_entry(slice, &lock->cll_layers, cls_linkage) { list_for_each_entry(slice, &lock->cll_layers, cls_linkage) {
if (slice->cls_ops->clo_enqueue != NULL) { if (slice->cls_ops->clo_enqueue) {
result = slice->cls_ops->clo_enqueue(env, result = slice->cls_ops->clo_enqueue(env,
slice, io, flags); slice, io, flags);
if (result != 0) if (result != 0)
...@@ -1215,7 +1215,7 @@ int cl_lock_enqueue_wait(const struct lu_env *env, ...@@ -1215,7 +1215,7 @@ int cl_lock_enqueue_wait(const struct lu_env *env,
LASSERT(cl_lock_is_mutexed(lock)); LASSERT(cl_lock_is_mutexed(lock));
LASSERT(lock->cll_state == CLS_QUEUING); LASSERT(lock->cll_state == CLS_QUEUING);
LASSERT(lock->cll_conflict != NULL); LASSERT(lock->cll_conflict);
conflict = lock->cll_conflict; conflict = lock->cll_conflict;
lock->cll_conflict = NULL; lock->cll_conflict = NULL;
...@@ -1258,7 +1258,7 @@ static int cl_enqueue_locked(const struct lu_env *env, struct cl_lock *lock, ...@@ -1258,7 +1258,7 @@ static int cl_enqueue_locked(const struct lu_env *env, struct cl_lock *lock,
do { do {
result = cl_enqueue_try(env, lock, io, enqflags); result = cl_enqueue_try(env, lock, io, enqflags);
if (result == CLO_WAIT) { if (result == CLO_WAIT) {
if (lock->cll_conflict != NULL) if (lock->cll_conflict)
result = cl_lock_enqueue_wait(env, lock, 1); result = cl_lock_enqueue_wait(env, lock, 1);
else else
result = cl_lock_state_wait(env, lock); result = cl_lock_state_wait(env, lock);
...@@ -1416,7 +1416,7 @@ int cl_wait_try(const struct lu_env *env, struct cl_lock *lock) ...@@ -1416,7 +1416,7 @@ int cl_wait_try(const struct lu_env *env, struct cl_lock *lock)
result = -ENOSYS; result = -ENOSYS;
list_for_each_entry(slice, &lock->cll_layers, cls_linkage) { list_for_each_entry(slice, &lock->cll_layers, cls_linkage) {
if (slice->cls_ops->clo_wait != NULL) { if (slice->cls_ops->clo_wait) {
result = slice->cls_ops->clo_wait(env, slice); result = slice->cls_ops->clo_wait(env, slice);
if (result != 0) if (result != 0)
break; break;
...@@ -1487,7 +1487,7 @@ unsigned long cl_lock_weigh(const struct lu_env *env, struct cl_lock *lock) ...@@ -1487,7 +1487,7 @@ unsigned long cl_lock_weigh(const struct lu_env *env, struct cl_lock *lock)
pound = 0; pound = 0;
list_for_each_entry_reverse(slice, &lock->cll_layers, cls_linkage) { list_for_each_entry_reverse(slice, &lock->cll_layers, cls_linkage) {
if (slice->cls_ops->clo_weigh != NULL) { if (slice->cls_ops->clo_weigh) {
ounce = slice->cls_ops->clo_weigh(env, slice); ounce = slice->cls_ops->clo_weigh(env, slice);
pound += ounce; pound += ounce;
if (pound < ounce) /* over-weight^Wflow */ if (pound < ounce) /* over-weight^Wflow */
...@@ -1523,7 +1523,7 @@ int cl_lock_modify(const struct lu_env *env, struct cl_lock *lock, ...@@ -1523,7 +1523,7 @@ int cl_lock_modify(const struct lu_env *env, struct cl_lock *lock,
LINVRNT(cl_lock_invariant(env, lock)); LINVRNT(cl_lock_invariant(env, lock));
list_for_each_entry_reverse(slice, &lock->cll_layers, cls_linkage) { list_for_each_entry_reverse(slice, &lock->cll_layers, cls_linkage) {
if (slice->cls_ops->clo_modify != NULL) { if (slice->cls_ops->clo_modify) {
result = slice->cls_ops->clo_modify(env, slice, desc); result = slice->cls_ops->clo_modify(env, slice, desc);
if (result != 0) if (result != 0)
return result; return result;
...@@ -1584,7 +1584,7 @@ int cl_lock_closure_build(const struct lu_env *env, struct cl_lock *lock, ...@@ -1584,7 +1584,7 @@ int cl_lock_closure_build(const struct lu_env *env, struct cl_lock *lock,
result = cl_lock_enclosure(env, lock, closure); result = cl_lock_enclosure(env, lock, closure);
if (result == 0) { if (result == 0) {
list_for_each_entry(slice, &lock->cll_layers, cls_linkage) { list_for_each_entry(slice, &lock->cll_layers, cls_linkage) {
if (slice->cls_ops->clo_closure != NULL) { if (slice->cls_ops->clo_closure) {
result = slice->cls_ops->clo_closure(env, slice, result = slice->cls_ops->clo_closure(env, slice,
closure); closure);
if (result != 0) if (result != 0)
...@@ -1820,7 +1820,6 @@ static pgoff_t pgoff_at_lock(struct cl_page *page, struct cl_lock *lock) ...@@ -1820,7 +1820,6 @@ static pgoff_t pgoff_at_lock(struct cl_page *page, struct cl_lock *lock)
dtype = lock->cll_descr.cld_obj->co_lu.lo_dev->ld_type; dtype = lock->cll_descr.cld_obj->co_lu.lo_dev->ld_type;
slice = cl_page_at(page, dtype); slice = cl_page_at(page, dtype);
LASSERT(slice != NULL);
return slice->cpl_page->cp_index; return slice->cpl_page->cp_index;
} }
...@@ -1840,7 +1839,7 @@ static int check_and_discard_cb(const struct lu_env *env, struct cl_io *io, ...@@ -1840,7 +1839,7 @@ static int check_and_discard_cb(const struct lu_env *env, struct cl_io *io,
/* refresh non-overlapped index */ /* refresh non-overlapped index */
tmp = cl_lock_at_pgoff(env, lock->cll_descr.cld_obj, index, tmp = cl_lock_at_pgoff(env, lock->cll_descr.cld_obj, index,
lock, 1, 0); lock, 1, 0);
if (tmp != NULL) { if (tmp) {
/* Cache the first-non-overlapped index so as to skip /* Cache the first-non-overlapped index so as to skip
* all pages within [index, clt_fn_index). This * all pages within [index, clt_fn_index). This
* is safe because if tmp lock is canceled, it will * is safe because if tmp lock is canceled, it will
...@@ -1950,7 +1949,7 @@ void cl_locks_prune(const struct lu_env *env, struct cl_object *obj, int cancel) ...@@ -1950,7 +1949,7 @@ void cl_locks_prune(const struct lu_env *env, struct cl_object *obj, int cancel)
* already destroyed (as otherwise they will be left unprotected). * already destroyed (as otherwise they will be left unprotected).
*/ */
LASSERT(ergo(!cancel, LASSERT(ergo(!cancel,
head->coh_tree.rnode == NULL && head->coh_pages == 0)); !head->coh_tree.rnode && head->coh_pages == 0));
spin_lock(&head->coh_lock_guard); spin_lock(&head->coh_lock_guard);
while (!list_empty(&head->coh_locks)) { while (!list_empty(&head->coh_locks)) {
...@@ -2194,7 +2193,7 @@ void cl_lock_print(const struct lu_env *env, void *cookie, ...@@ -2194,7 +2193,7 @@ void cl_lock_print(const struct lu_env *env, void *cookie,
(*printer)(env, cookie, " %s@%p: ", (*printer)(env, cookie, " %s@%p: ",
slice->cls_obj->co_lu.lo_dev->ld_type->ldt_name, slice->cls_obj->co_lu.lo_dev->ld_type->ldt_name,
slice); slice);
if (slice->cls_ops->clo_print != NULL) if (slice->cls_ops->clo_print)
slice->cls_ops->clo_print(env, cookie, printer, slice); slice->cls_ops->clo_print(env, cookie, printer, slice);
(*printer)(env, cookie, "\n"); (*printer)(env, cookie, "\n");
} }
......
drivers/staging/lustre/lustre/obdclass/cl_object.c
View file @ cce3c2da
...@@ -152,7 +152,7 @@ struct cl_object *cl_object_top(struct cl_object *o) ...@@ -152,7 +152,7 @@ struct cl_object *cl_object_top(struct cl_object *o)
struct cl_object_header *hdr = cl_object_header(o); struct cl_object_header *hdr = cl_object_header(o);
struct cl_object *top; struct cl_object *top;
while (hdr->coh_parent != NULL) while (hdr->coh_parent)
hdr = hdr->coh_parent; hdr = hdr->coh_parent;
top = lu2cl(lu_object_top(&hdr->coh_lu)); top = lu2cl(lu_object_top(&hdr->coh_lu));
...@@ -217,7 +217,7 @@ int cl_object_attr_get(const struct lu_env *env, struct cl_object *obj, ...@@ -217,7 +217,7 @@ int cl_object_attr_get(const struct lu_env *env, struct cl_object *obj,
top = obj->co_lu.lo_header; top = obj->co_lu.lo_header;
result = 0; result = 0;
list_for_each_entry(obj, &top->loh_layers, co_lu.lo_linkage) { list_for_each_entry(obj, &top->loh_layers, co_lu.lo_linkage) {
if (obj->co_ops->coo_attr_get != NULL) { if (obj->co_ops->coo_attr_get) {
result = obj->co_ops->coo_attr_get(env, obj, attr); result = obj->co_ops->coo_attr_get(env, obj, attr);
if (result != 0) { if (result != 0) {
if (result > 0) if (result > 0)
...@@ -249,7 +249,7 @@ int cl_object_attr_set(const struct lu_env *env, struct cl_object *obj, ...@@ -249,7 +249,7 @@ int cl_object_attr_set(const struct lu_env *env, struct cl_object *obj,
result = 0; result = 0;
list_for_each_entry_reverse(obj, &top->loh_layers, list_for_each_entry_reverse(obj, &top->loh_layers,
co_lu.lo_linkage) { co_lu.lo_linkage) {
if (obj->co_ops->coo_attr_set != NULL) { if (obj->co_ops->coo_attr_set) {
result = obj->co_ops->coo_attr_set(env, obj, attr, v); result = obj->co_ops->coo_attr_set(env, obj, attr, v);
if (result != 0) { if (result != 0) {
if (result > 0) if (result > 0)
...@@ -280,7 +280,7 @@ int cl_object_glimpse(const struct lu_env *env, struct cl_object *obj, ...@@ -280,7 +280,7 @@ int cl_object_glimpse(const struct lu_env *env, struct cl_object *obj,
result = 0; result = 0;
list_for_each_entry_reverse(obj, &top->loh_layers, list_for_each_entry_reverse(obj, &top->loh_layers,
co_lu.lo_linkage) { co_lu.lo_linkage) {
if (obj->co_ops->coo_glimpse != NULL) { if (obj->co_ops->coo_glimpse) {
result = obj->co_ops->coo_glimpse(env, obj, lvb); result = obj->co_ops->coo_glimpse(env, obj, lvb);
if (result != 0) if (result != 0)
break; break;
...@@ -306,7 +306,7 @@ int cl_conf_set(const struct lu_env *env, struct cl_object *obj, ...@@ -306,7 +306,7 @@ int cl_conf_set(const struct lu_env *env, struct cl_object *obj,
top = obj->co_lu.lo_header; top = obj->co_lu.lo_header;
result = 0; result = 0;
list_for_each_entry(obj, &top->loh_layers, co_lu.lo_linkage) { list_for_each_entry(obj, &top->loh_layers, co_lu.lo_linkage) {
if (obj->co_ops->coo_conf_set != NULL) { if (obj->co_ops->coo_conf_set) {
result = obj->co_ops->coo_conf_set(env, obj, conf); result = obj->co_ops->coo_conf_set(env, obj, conf);
if (result != 0) if (result != 0)
break; break;
...@@ -328,7 +328,7 @@ void cl_object_kill(const struct lu_env *env, struct cl_object *obj) ...@@ -328,7 +328,7 @@ void cl_object_kill(const struct lu_env *env, struct cl_object *obj)
struct cl_object_header *hdr; struct cl_object_header *hdr;
hdr = cl_object_header(obj); hdr = cl_object_header(obj);
LASSERT(hdr->coh_tree.rnode == NULL); LASSERT(!hdr->coh_tree.rnode);
LASSERT(hdr->coh_pages == 0); LASSERT(hdr->coh_pages == 0);
set_bit(LU_OBJECT_HEARD_BANSHEE, &hdr->coh_lu.loh_flags); set_bit(LU_OBJECT_HEARD_BANSHEE, &hdr->coh_lu.loh_flags);
...@@ -541,7 +541,7 @@ static void cl_env_init0(struct cl_env *cle, void *debug) ...@@ -541,7 +541,7 @@ static void cl_env_init0(struct cl_env *cle, void *debug)
{ {
LASSERT(cle->ce_ref == 0); LASSERT(cle->ce_ref == 0);
LASSERT(cle->ce_magic == &cl_env_init0); LASSERT(cle->ce_magic == &cl_env_init0);
LASSERT(cle->ce_debug == NULL && cle->ce_owner == NULL); LASSERT(!cle->ce_debug && !cle->ce_owner);
cle->ce_ref = 1; cle->ce_ref = 1;
cle->ce_debug = debug; cle->ce_debug = debug;
...@@ -576,7 +576,7 @@ static int cl_env_hops_keycmp(const void *key, struct hlist_node *hn) ...@@ -576,7 +576,7 @@ static int cl_env_hops_keycmp(const void *key, struct hlist_node *hn)
{ {
struct cl_env *cle = cl_env_hops_obj(hn); struct cl_env *cle = cl_env_hops_obj(hn);
LASSERT(cle->ce_owner != NULL); LASSERT(cle->ce_owner);
return (key == cle->ce_owner); return (key == cle->ce_owner);
} }
...@@ -610,7 +610,7 @@ static inline void cl_env_attach(struct cl_env *cle) ...@@ -610,7 +610,7 @@ static inline void cl_env_attach(struct cl_env *cle)
if (cle) { if (cle) {
int rc; int rc;
LASSERT(cle->ce_owner == NULL); LASSERT(!cle->ce_owner);
cle->ce_owner = (void *) (long) current->pid; cle->ce_owner = (void *) (long) current->pid;
rc = cfs_hash_add_unique(cl_env_hash, cle->ce_owner, rc = cfs_hash_add_unique(cl_env_hash, cle->ce_owner,
&cle->ce_node); &cle->ce_node);
...@@ -638,7 +638,7 @@ static int cl_env_store_init(void) ...@@ -638,7 +638,7 @@ static int cl_env_store_init(void)
CFS_HASH_MAX_THETA, CFS_HASH_MAX_THETA,
&cl_env_hops, &cl_env_hops,
CFS_HASH_RW_BKTLOCK); CFS_HASH_RW_BKTLOCK);
return cl_env_hash != NULL ? 0 : -ENOMEM; return cl_env_hash ? 0 : -ENOMEM;
} }
static void cl_env_store_fini(void) static void cl_env_store_fini(void)
...@@ -648,7 +648,7 @@ static void cl_env_store_fini(void) ...@@ -648,7 +648,7 @@ static void cl_env_store_fini(void)
static inline struct cl_env *cl_env_detach(struct cl_env *cle) static inline struct cl_env *cl_env_detach(struct cl_env *cle)
{ {
if (cle == NULL) if (!cle)
cle = cl_env_fetch(); cle = cl_env_fetch();
if (cle && cle->ce_owner) if (cle && cle->ce_owner)
...@@ -663,7 +663,7 @@ static struct lu_env *cl_env_new(__u32 ctx_tags, __u32 ses_tags, void *debug) ...@@ -663,7 +663,7 @@ static struct lu_env *cl_env_new(__u32 ctx_tags, __u32 ses_tags, void *debug)
struct cl_env *cle; struct cl_env *cle;
cle = kmem_cache_alloc(cl_env_kmem, GFP_NOFS | __GFP_ZERO); cle = kmem_cache_alloc(cl_env_kmem, GFP_NOFS | __GFP_ZERO);
if (cle != NULL) { if (cle) {
int rc; int rc;
INIT_LIST_HEAD(&cle->ce_linkage); INIT_LIST_HEAD(&cle->ce_linkage);
...@@ -717,7 +717,7 @@ static struct lu_env *cl_env_peek(int *refcheck) ...@@ -717,7 +717,7 @@ static struct lu_env *cl_env_peek(int *refcheck)
env = NULL; env = NULL;
cle = cl_env_fetch(); cle = cl_env_fetch();
if (cle != NULL) { if (cle) {
CL_ENV_INC(hit); CL_ENV_INC(hit);
env = &cle->ce_lu; env = &cle->ce_lu;
*refcheck = ++cle->ce_ref; *refcheck = ++cle->ce_ref;
...@@ -742,7 +742,7 @@ struct lu_env *cl_env_get(int *refcheck) ...@@ -742,7 +742,7 @@ struct lu_env *cl_env_get(int *refcheck)
struct lu_env *env; struct lu_env *env;
env = cl_env_peek(refcheck); env = cl_env_peek(refcheck);
if (env == NULL) { if (!env) {
env = cl_env_new(lu_context_tags_default, env = cl_env_new(lu_context_tags_default,
lu_session_tags_default, lu_session_tags_default,
__builtin_return_address(0)); __builtin_return_address(0));
...@@ -769,7 +769,7 @@ struct lu_env *cl_env_alloc(int *refcheck, __u32 tags) ...@@ -769,7 +769,7 @@ struct lu_env *cl_env_alloc(int *refcheck, __u32 tags)
{ {
struct lu_env *env; struct lu_env *env;
LASSERT(cl_env_peek(refcheck) == NULL); LASSERT(!cl_env_peek(refcheck));
env = cl_env_new(tags, tags, __builtin_return_address(0)); env = cl_env_new(tags, tags, __builtin_return_address(0));
if (!IS_ERR(env)) { if (!IS_ERR(env)) {
struct cl_env *cle; struct cl_env *cle;
...@@ -784,7 +784,7 @@ EXPORT_SYMBOL(cl_env_alloc); ...@@ -784,7 +784,7 @@ EXPORT_SYMBOL(cl_env_alloc);
static void cl_env_exit(struct cl_env *cle) static void cl_env_exit(struct cl_env *cle)
{ {
LASSERT(cle->ce_owner == NULL); LASSERT(!cle->ce_owner);
lu_context_exit(&cle->ce_lu.le_ctx); lu_context_exit(&cle->ce_lu.le_ctx);
lu_context_exit(&cle->ce_ses); lu_context_exit(&cle->ce_ses);
} }
...@@ -803,7 +803,7 @@ void cl_env_put(struct lu_env *env, int *refcheck) ...@@ -803,7 +803,7 @@ void cl_env_put(struct lu_env *env, int *refcheck)
cle = cl_env_container(env); cle = cl_env_container(env);
LASSERT(cle->ce_ref > 0); LASSERT(cle->ce_ref > 0);
LASSERT(ergo(refcheck != NULL, cle->ce_ref == *refcheck)); LASSERT(ergo(refcheck, cle->ce_ref == *refcheck));
CDEBUG(D_OTHER, "%d@%p\n", cle->ce_ref, cle); CDEBUG(D_OTHER, "%d@%p\n", cle->ce_ref, cle);
if (--cle->ce_ref == 0) { if (--cle->ce_ref == 0) {
...@@ -878,7 +878,7 @@ struct lu_env *cl_env_nested_get(struct cl_env_nest *nest) ...@@ -878,7 +878,7 @@ struct lu_env *cl_env_nested_get(struct cl_env_nest *nest)
nest->cen_cookie = NULL; nest->cen_cookie = NULL;
env = cl_env_peek(&nest->cen_refcheck); env = cl_env_peek(&nest->cen_refcheck);
if (env != NULL) { if (env) {
if (!cl_io_is_going(env)) if (!cl_io_is_going(env))
return env; return env;
cl_env_put(env, &nest->cen_refcheck); cl_env_put(env, &nest->cen_refcheck);
...@@ -930,14 +930,12 @@ struct cl_device *cl_type_setup(const struct lu_env *env, struct lu_site *site, ...@@ -930,14 +930,12 @@ struct cl_device *cl_type_setup(const struct lu_env *env, struct lu_site *site,
const char *typename; const char *typename;
struct lu_device *d; struct lu_device *d;
LASSERT(ldt != NULL);
typename = ldt->ldt_name; typename = ldt->ldt_name;
d = ldt->ldt_ops->ldto_device_alloc(env, ldt, NULL); d = ldt->ldt_ops->ldto_device_alloc(env, ldt, NULL);
if (!IS_ERR(d)) { if (!IS_ERR(d)) {
int rc; int rc;
if (site != NULL) if (site)
d->ld_site = site; d->ld_site = site;
rc = ldt->ldt_ops->ldto_device_init(env, d, typename, next); rc = ldt->ldt_ops->ldto_device_init(env, d, typename, next);
if (rc == 0) { if (rc == 0) {
......
drivers/staging/lustre/lustre/obdclass/class_obd.c
View file @ cce3c2da
...@@ -341,7 +341,7 @@ int class_handle_ioctl(unsigned int cmd, unsigned long arg) ...@@ -341,7 +341,7 @@ int class_handle_ioctl(unsigned int cmd, unsigned long arg)
} }
if (data->ioc_dev == OBD_DEV_BY_DEVNAME) { if (data->ioc_dev == OBD_DEV_BY_DEVNAME) {
if (data->ioc_inllen4 <= 0 || data->ioc_inlbuf4 == NULL) { if (data->ioc_inllen4 <= 0 || !data->ioc_inlbuf4) {
err = -EINVAL; err = -EINVAL;
goto out; goto out;
} }
...@@ -358,7 +358,7 @@ int class_handle_ioctl(unsigned int cmd, unsigned long arg) ...@@ -358,7 +358,7 @@ int class_handle_ioctl(unsigned int cmd, unsigned long arg)
goto out; goto out;
} }
if (obd == NULL) { if (!obd) {
CERROR("OBD ioctl : No Device %d\n", data->ioc_dev); CERROR("OBD ioctl : No Device %d\n", data->ioc_dev);
err = -EINVAL; err = -EINVAL;
goto out; goto out;
......
drivers/staging/lustre/lustre/obdclass/genops.c
View file @ cce3c2da
...@@ -70,17 +70,16 @@ static struct obd_device *obd_device_alloc(void) ...@@ -70,17 +70,16 @@ static struct obd_device *obd_device_alloc(void)
struct obd_device *obd; struct obd_device *obd;
obd = kmem_cache_alloc(obd_device_cachep, GFP_NOFS | __GFP_ZERO); obd = kmem_cache_alloc(obd_device_cachep, GFP_NOFS | __GFP_ZERO);
if (obd != NULL) if (obd)
obd->obd_magic = OBD_DEVICE_MAGIC; obd->obd_magic = OBD_DEVICE_MAGIC;
return obd; return obd;
} }
static void obd_device_free(struct obd_device *obd) static void obd_device_free(struct obd_device *obd)
{ {
LASSERT(obd != NULL);
LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC, "obd %p obd_magic %08x != %08x\n", LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC, "obd %p obd_magic %08x != %08x\n",
obd, obd->obd_magic, OBD_DEVICE_MAGIC); obd, obd->obd_magic, OBD_DEVICE_MAGIC);
if (obd->obd_namespace != NULL) { if (obd->obd_namespace) {
CERROR("obd %p: namespace %p was not properly cleaned up (obd_force=%d)!\n", CERROR("obd %p: namespace %p was not properly cleaned up (obd_force=%d)!\n",
obd, obd->obd_namespace, obd->obd_force); obd, obd->obd_namespace, obd->obd_force);
LBUG(); LBUG();
...@@ -194,7 +193,7 @@ int class_register_type(struct obd_ops *dt_ops, struct md_ops *md_ops, ...@@ -194,7 +193,7 @@ int class_register_type(struct obd_ops *dt_ops, struct md_ops *md_ops,
goto failed; goto failed;
} }
if (ldt != NULL) { if (ldt) {
type->typ_lu = ldt; type->typ_lu = ldt;
rc = lu_device_type_init(ldt); rc = lu_device_type_init(ldt);
if (rc != 0) if (rc != 0)
...@@ -356,7 +355,7 @@ void class_release_dev(struct obd_device *obd) ...@@ -356,7 +355,7 @@ void class_release_dev(struct obd_device *obd)
obd, obd->obd_magic, OBD_DEVICE_MAGIC); obd, obd->obd_magic, OBD_DEVICE_MAGIC);
LASSERTF(obd == obd_devs[obd->obd_minor], "obd %p != obd_devs[%d] %p\n", LASSERTF(obd == obd_devs[obd->obd_minor], "obd %p != obd_devs[%d] %p\n",
obd, obd->obd_minor, obd_devs[obd->obd_minor]); obd, obd->obd_minor, obd_devs[obd->obd_minor]);
LASSERT(obd_type != NULL); LASSERT(obd_type);
CDEBUG(D_INFO, "Release obd device %s at %d obd_type name =%s\n", CDEBUG(D_INFO, "Release obd device %s at %d obd_type name =%s\n",
obd->obd_name, obd->obd_minor, obd->obd_type->typ_name); obd->obd_name, obd->obd_minor, obd->obd_type->typ_name);
...@@ -650,7 +649,7 @@ static void class_export_destroy(struct obd_export *exp) ...@@ -650,7 +649,7 @@ static void class_export_destroy(struct obd_export *exp)
struct obd_device *obd = exp->exp_obd; struct obd_device *obd = exp->exp_obd;
LASSERT_ATOMIC_ZERO(&exp->exp_refcount); LASSERT_ATOMIC_ZERO(&exp->exp_refcount);
LASSERT(obd != NULL); LASSERT(obd);
CDEBUG(D_IOCTL, "destroying export %p/%s for %s\n", exp, CDEBUG(D_IOCTL, "destroying export %p/%s for %s\n", exp,
exp->exp_client_uuid.uuid, obd->obd_name); exp->exp_client_uuid.uuid, obd->obd_name);
...@@ -690,7 +689,6 @@ EXPORT_SYMBOL(class_export_get); ...@@ -690,7 +689,6 @@ EXPORT_SYMBOL(class_export_get);
void class_export_put(struct obd_export *exp) void class_export_put(struct obd_export *exp)
{ {
LASSERT(exp != NULL);
LASSERT_ATOMIC_GT_LT(&exp->exp_refcount, 0, LI_POISON); LASSERT_ATOMIC_GT_LT(&exp->exp_refcount, 0, LI_POISON);
CDEBUG(D_INFO, "PUTting export %p : new refcount %d\n", exp, CDEBUG(D_INFO, "PUTting export %p : new refcount %d\n", exp,
atomic_read(&exp->exp_refcount) - 1); atomic_read(&exp->exp_refcount) - 1);
...@@ -942,7 +940,7 @@ EXPORT_SYMBOL(class_new_import); ...@@ -942,7 +940,7 @@ EXPORT_SYMBOL(class_new_import);
void class_destroy_import(struct obd_import *import) void class_destroy_import(struct obd_import *import)
{ {
LASSERT(import != NULL); LASSERT(import);
LASSERT(import != LP_POISON); LASSERT(import != LP_POISON);
class_handle_unhash(&import->imp_handle); class_handle_unhash(&import->imp_handle);
...@@ -962,8 +960,7 @@ void __class_export_add_lock_ref(struct obd_export *exp, struct ldlm_lock *lock) ...@@ -962,8 +960,7 @@ void __class_export_add_lock_ref(struct obd_export *exp, struct ldlm_lock *lock)
LASSERT(lock->l_exp_refs_nr >= 0); LASSERT(lock->l_exp_refs_nr >= 0);
if (lock->l_exp_refs_target != NULL && if (lock->l_exp_refs_target && lock->l_exp_refs_target != exp) {
lock->l_exp_refs_target != exp) {
LCONSOLE_WARN("setting export %p for lock %p which already has export %p\n", LCONSOLE_WARN("setting export %p for lock %p which already has export %p\n",
exp, lock, lock->l_exp_refs_target); exp, lock, lock->l_exp_refs_target);
} }
...@@ -1005,9 +1002,9 @@ int class_connect(struct lustre_handle *conn, struct obd_device *obd, ...@@ -1005,9 +1002,9 @@ int class_connect(struct lustre_handle *conn, struct obd_device *obd,
{ {
struct obd_export *export; struct obd_export *export;
LASSERT(conn != NULL); LASSERT(conn);
LASSERT(obd != NULL); LASSERT(obd);
LASSERT(cluuid != NULL); LASSERT(cluuid);
export = class_new_export(obd, cluuid); export = class_new_export(obd, cluuid);
if (IS_ERR(export)) if (IS_ERR(export))
...@@ -1133,14 +1130,14 @@ static void obd_zombie_impexp_cull(void) ...@@ -1133,14 +1130,14 @@ static void obd_zombie_impexp_cull(void)
spin_unlock(&obd_zombie_impexp_lock); spin_unlock(&obd_zombie_impexp_lock);
if (import != NULL) { if (import) {
class_import_destroy(import); class_import_destroy(import);
spin_lock(&obd_zombie_impexp_lock); spin_lock(&obd_zombie_impexp_lock);
zombies_count--; zombies_count--;
spin_unlock(&obd_zombie_impexp_lock); spin_unlock(&obd_zombie_impexp_lock);
} }
if (export != NULL) { if (export) {
class_export_destroy(export); class_export_destroy(export);
spin_lock(&obd_zombie_impexp_lock); spin_lock(&obd_zombie_impexp_lock);
zombies_count--; zombies_count--;
...@@ -1148,7 +1145,7 @@ static void obd_zombie_impexp_cull(void) ...@@ -1148,7 +1145,7 @@ static void obd_zombie_impexp_cull(void)
} }
cond_resched(); cond_resched();
} while (import != NULL || export != NULL); } while (import || export);
} }
static struct completion obd_zombie_start; static struct completion obd_zombie_start;
......
drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
View file @ cce3c2da
...@@ -106,7 +106,7 @@ int obd_ioctl_getdata(char **buf, int *len, void __user *arg) ...@@ -106,7 +106,7 @@ int obd_ioctl_getdata(char **buf, int *len, void __user *arg)
* obdfilter-survey is an example, which relies on ioctl. So we'd * obdfilter-survey is an example, which relies on ioctl. So we'd
* better avoid vmalloc on ioctl path. LU-66 */ * better avoid vmalloc on ioctl path. LU-66 */
*buf = libcfs_kvzalloc(hdr.ioc_len, GFP_NOFS); *buf = libcfs_kvzalloc(hdr.ioc_len, GFP_NOFS);
if (*buf == NULL) { if (!*buf) {
CERROR("Cannot allocate control buffer of len %d\n", CERROR("Cannot allocate control buffer of len %d\n",
hdr.ioc_len); hdr.ioc_len);
return -EINVAL; return -EINVAL;
...@@ -454,8 +454,7 @@ int class_procfs_init(void) ...@@ -454,8 +454,7 @@ int class_procfs_init(void)
int class_procfs_clean(void) int class_procfs_clean(void)
{ {
if (debugfs_lustre_root != NULL) debugfs_remove_recursive(debugfs_lustre_root);
debugfs_remove_recursive(debugfs_lustre_root);
debugfs_lustre_root = NULL; debugfs_lustre_root = NULL;
......
drivers/staging/lustre/lustre/obdclass/llog.c
View file @ cce3c2da
...@@ -76,8 +76,6 @@ static struct llog_handle *llog_alloc_handle(void) ...@@ -76,8 +76,6 @@ static struct llog_handle *llog_alloc_handle(void)
*/ */
static void llog_free_handle(struct llog_handle *loghandle) static void llog_free_handle(struct llog_handle *loghandle)
{ {
LASSERT(loghandle != NULL);
/* failed llog_init_handle */ /* failed llog_init_handle */
if (!loghandle->lgh_hdr) if (!loghandle->lgh_hdr)
goto out; goto out;
...@@ -115,7 +113,7 @@ static int llog_read_header(const struct lu_env *env, ...@@ -115,7 +113,7 @@ static int llog_read_header(const struct lu_env *env,
if (rc) if (rc)
return rc; return rc;
if (lop->lop_read_header == NULL) if (!lop->lop_read_header)
return -EOPNOTSUPP; return -EOPNOTSUPP;
rc = lop->lop_read_header(env, handle); rc = lop->lop_read_header(env, handle);
...@@ -144,7 +142,7 @@ int llog_init_handle(const struct lu_env *env, struct llog_handle *handle, ...@@ -144,7 +142,7 @@ int llog_init_handle(const struct lu_env *env, struct llog_handle *handle,
struct llog_log_hdr *llh; struct llog_log_hdr *llh;
int rc; int rc;
LASSERT(handle->lgh_hdr == NULL); LASSERT(!handle->lgh_hdr);
llh = kzalloc(sizeof(*llh), GFP_NOFS); llh = kzalloc(sizeof(*llh), GFP_NOFS);
if (!llh) if (!llh)
...@@ -228,11 +226,11 @@ static int llog_process_thread(void *arg) ...@@ -228,11 +226,11 @@ static int llog_process_thread(void *arg)
return 0; return 0;
} }
if (cd != NULL) { if (cd) {
last_called_index = cd->lpcd_first_idx; last_called_index = cd->lpcd_first_idx;
index = cd->lpcd_first_idx + 1; index = cd->lpcd_first_idx + 1;
} }
if (cd != NULL && cd->lpcd_last_idx) if (cd && cd->lpcd_last_idx)
last_index = cd->lpcd_last_idx; last_index = cd->lpcd_last_idx;
else else
last_index = LLOG_BITMAP_BYTES * 8 - 1; last_index = LLOG_BITMAP_BYTES * 8 - 1;
...@@ -328,7 +326,7 @@ static int llog_process_thread(void *arg) ...@@ -328,7 +326,7 @@ static int llog_process_thread(void *arg)
} }
out: out:
if (cd != NULL) if (cd)
cd->lpcd_last_idx = last_called_index; cd->lpcd_last_idx = last_called_index;
kfree(buf); kfree(buf);
...@@ -419,13 +417,13 @@ int llog_open(const struct lu_env *env, struct llog_ctxt *ctxt, ...@@ -419,13 +417,13 @@ int llog_open(const struct lu_env *env, struct llog_ctxt *ctxt,
LASSERT(ctxt); LASSERT(ctxt);
LASSERT(ctxt->loc_logops); LASSERT(ctxt->loc_logops);
if (ctxt->loc_logops->lop_open == NULL) { if (!ctxt->loc_logops->lop_open) {
*lgh = NULL; *lgh = NULL;
return -EOPNOTSUPP; return -EOPNOTSUPP;
} }
*lgh = llog_alloc_handle(); *lgh = llog_alloc_handle();
if (*lgh == NULL) if (!*lgh)
return -ENOMEM; return -ENOMEM;
(*lgh)->lgh_ctxt = ctxt; (*lgh)->lgh_ctxt = ctxt;
(*lgh)->lgh_logops = ctxt->loc_logops; (*lgh)->lgh_logops = ctxt->loc_logops;
...@@ -452,7 +450,7 @@ int llog_close(const struct lu_env *env, struct llog_handle *loghandle) ...@@ -452,7 +450,7 @@ int llog_close(const struct lu_env *env, struct llog_handle *loghandle)
rc = llog_handle2ops(loghandle, &lop); rc = llog_handle2ops(loghandle, &lop);
if (rc) if (rc)
goto out; goto out;
if (lop->lop_close == NULL) { if (!lop->lop_close) {
rc = -EOPNOTSUPP; rc = -EOPNOTSUPP;
goto out; goto out;
} }
......
drivers/staging/lustre/lustre/obdclass/llog_cat.c
View file @ cce3c2da
...@@ -69,7 +69,7 @@ static int llog_cat_id2handle(const struct lu_env *env, ...@@ -69,7 +69,7 @@ static int llog_cat_id2handle(const struct lu_env *env,
struct llog_handle *loghandle; struct llog_handle *loghandle;
int rc = 0; int rc = 0;
if (cathandle == NULL) if (!cathandle)
return -EBADF; return -EBADF;
down_write(&cathandle->lgh_lock); down_write(&cathandle->lgh_lock);
......
drivers/staging/lustre/lustre/obdclass/llog_obd.c
View file @ cce3c2da
...@@ -110,11 +110,8 @@ int llog_cleanup(const struct lu_env *env, struct llog_ctxt *ctxt) ...@@ -110,11 +110,8 @@ int llog_cleanup(const struct lu_env *env, struct llog_ctxt *ctxt)
struct obd_llog_group *olg; struct obd_llog_group *olg;
int rc, idx; int rc, idx;
LASSERT(ctxt != NULL);
LASSERT(ctxt != LP_POISON);
olg = ctxt->loc_olg; olg = ctxt->loc_olg;
LASSERT(olg != NULL); LASSERT(olg);
LASSERT(olg != LP_POISON); LASSERT(olg != LP_POISON);
idx = ctxt->loc_idx; idx = ctxt->loc_idx;
...@@ -151,7 +148,7 @@ int llog_setup(const struct lu_env *env, struct obd_device *obd, ...@@ -151,7 +148,7 @@ int llog_setup(const struct lu_env *env, struct obd_device *obd,
if (index < 0 || index >= LLOG_MAX_CTXTS) if (index < 0 || index >= LLOG_MAX_CTXTS)
return -EINVAL; return -EINVAL;
LASSERT(olg != NULL); LASSERT(olg);
ctxt = llog_new_ctxt(obd); ctxt = llog_new_ctxt(obd);
if (!ctxt) if (!ctxt)
......
drivers/staging/lustre/lustre/obdclass/lprocfs_counters.c
View file @ cce3c2da
...@@ -48,7 +48,7 @@ void lprocfs_counter_add(struct lprocfs_stats *stats, int idx, long amount) ...@@ -48,7 +48,7 @@ void lprocfs_counter_add(struct lprocfs_stats *stats, int idx, long amount)
int smp_id; int smp_id;
unsigned long flags = 0; unsigned long flags = 0;
if (stats == NULL) if (!stats)
return; return;
LASSERTF(0 <= idx && idx < stats->ls_num, LASSERTF(0 <= idx && idx < stats->ls_num,
...@@ -96,7 +96,7 @@ void lprocfs_counter_sub(struct lprocfs_stats *stats, int idx, long amount) ...@@ -96,7 +96,7 @@ void lprocfs_counter_sub(struct lprocfs_stats *stats, int idx, long amount)
int smp_id; int smp_id;
unsigned long flags = 0; unsigned long flags = 0;
if (stats == NULL) if (!stats)
return; return;
LASSERTF(0 <= idx && idx < stats->ls_num, LASSERTF(0 <= idx && idx < stats->ls_num,
......
drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
View file @ cce3c2da
...@@ -109,7 +109,7 @@ int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep) ...@@ -109,7 +109,7 @@ int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep)
__u64 mask = 1; __u64 mask = 1;
int i, ret = 0; int i, ret = 0;
for (i = 0; obd_connect_names[i] != NULL; i++, mask <<= 1) { for (i = 0; obd_connect_names[i]; i++, mask <<= 1) {
if (flags & mask) if (flags & mask)
ret += snprintf(page + ret, count - ret, "%s%s", ret += snprintf(page + ret, count - ret, "%s%s",
ret ? sep : "", obd_connect_names[i]); ret ? sep : "", obd_connect_names[i]);
...@@ -199,7 +199,7 @@ int lprocfs_write_frac_helper(const char __user *buffer, unsigned long count, ...@@ -199,7 +199,7 @@ int lprocfs_write_frac_helper(const char __user *buffer, unsigned long count,
if (pbuf == end) if (pbuf == end)
return -EINVAL; return -EINVAL;
if (end != NULL && *end == '.') { if (end && *end == '.') {
int temp_val, pow = 1; int temp_val, pow = 1;
int i; int i;
...@@ -247,7 +247,7 @@ struct dentry *ldebugfs_add_simple(struct dentry *root, ...@@ -247,7 +247,7 @@ struct dentry *ldebugfs_add_simple(struct dentry *root,
struct dentry *entry; struct dentry *entry;
umode_t mode = 0; umode_t mode = 0;
if (root == NULL || name == NULL || fops == NULL) if (!root || !name || !fops)
return ERR_PTR(-EINVAL); return ERR_PTR(-EINVAL);
if (fops->read) if (fops->read)
...@@ -272,7 +272,7 @@ int ldebugfs_add_vars(struct dentry *parent, ...@@ -272,7 +272,7 @@ int ldebugfs_add_vars(struct dentry *parent,
if (IS_ERR_OR_NULL(parent) || IS_ERR_OR_NULL(list)) if (IS_ERR_OR_NULL(parent) || IS_ERR_OR_NULL(list))
return -EINVAL; return -EINVAL;
while (list->name != NULL) { while (list->name) {
struct dentry *entry; struct dentry *entry;
umode_t mode = 0; umode_t mode = 0;
...@@ -491,7 +491,7 @@ int lprocfs_rd_server_uuid(struct seq_file *m, void *data) ...@@ -491,7 +491,7 @@ int lprocfs_rd_server_uuid(struct seq_file *m, void *data)
char *imp_state_name = NULL; char *imp_state_name = NULL;
int rc; int rc;
LASSERT(obd != NULL); LASSERT(obd);
rc = lprocfs_climp_check(obd); rc = lprocfs_climp_check(obd);
if (rc) if (rc)
return rc; return rc;
...@@ -514,7 +514,7 @@ int lprocfs_rd_conn_uuid(struct seq_file *m, void *data) ...@@ -514,7 +514,7 @@ int lprocfs_rd_conn_uuid(struct seq_file *m, void *data)
struct ptlrpc_connection *conn; struct ptlrpc_connection *conn;
int rc; int rc;
LASSERT(obd != NULL); LASSERT(obd);
rc = lprocfs_climp_check(obd); rc = lprocfs_climp_check(obd);
if (rc) if (rc)
...@@ -543,7 +543,7 @@ void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx, ...@@ -543,7 +543,7 @@ void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx,
memset(cnt, 0, sizeof(*cnt)); memset(cnt, 0, sizeof(*cnt));
if (stats == NULL) { if (!stats) {
/* set count to 1 to avoid divide-by-zero errs in callers */ /* set count to 1 to avoid divide-by-zero errs in callers */
cnt->lc_count = 1; cnt->lc_count = 1;
return; return;
...@@ -554,7 +554,7 @@ void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx, ...@@ -554,7 +554,7 @@ void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx,
num_entry = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags); num_entry = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
for (i = 0; i < num_entry; i++) { for (i = 0; i < num_entry; i++) {
if (stats->ls_percpu[i] == NULL) if (!stats->ls_percpu[i])
continue; continue;
percpu_cntr = lprocfs_stats_counter_get(stats, i, idx); percpu_cntr = lprocfs_stats_counter_get(stats, i, idx);
...@@ -604,7 +604,7 @@ static void obd_connect_seq_flags2str(struct seq_file *m, __u64 flags, char *sep ...@@ -604,7 +604,7 @@ static void obd_connect_seq_flags2str(struct seq_file *m, __u64 flags, char *sep
int i; int i;
bool first = true; bool first = true;
for (i = 0; obd_connect_names[i] != NULL; i++, mask <<= 1) { for (i = 0; obd_connect_names[i]; i++, mask <<= 1) {
if (flags & mask) { if (flags & mask) {
seq_printf(m, "%s%s", seq_printf(m, "%s%s",
first ? sep : "", obd_connect_names[i]); first ? sep : "", obd_connect_names[i]);
...@@ -629,7 +629,7 @@ int lprocfs_rd_import(struct seq_file *m, void *data) ...@@ -629,7 +629,7 @@ int lprocfs_rd_import(struct seq_file *m, void *data)
int rw = 0; int rw = 0;
int rc; int rc;
LASSERT(obd != NULL); LASSERT(obd);
rc = lprocfs_climp_check(obd); rc = lprocfs_climp_check(obd);
if (rc) if (rc)
return rc; return rc;
...@@ -665,7 +665,7 @@ int lprocfs_rd_import(struct seq_file *m, void *data) ...@@ -665,7 +665,7 @@ int lprocfs_rd_import(struct seq_file *m, void *data)
seq_printf(m, "%s%s", j ? ", " : "", nidstr); seq_printf(m, "%s%s", j ? ", " : "", nidstr);
j++; j++;
} }
if (imp->imp_connection != NULL) if (imp->imp_connection)
libcfs_nid2str_r(imp->imp_connection->c_peer.nid, libcfs_nid2str_r(imp->imp_connection->c_peer.nid,
nidstr, sizeof(nidstr)); nidstr, sizeof(nidstr));
else else
...@@ -682,7 +682,7 @@ int lprocfs_rd_import(struct seq_file *m, void *data) ...@@ -682,7 +682,7 @@ int lprocfs_rd_import(struct seq_file *m, void *data)
atomic_read(&imp->imp_inval_count)); atomic_read(&imp->imp_inval_count));
spin_unlock(&imp->imp_lock); spin_unlock(&imp->imp_lock);
if (obd->obd_svc_stats == NULL) if (!obd->obd_svc_stats)
goto out_climp; goto out_climp;
header = &obd->obd_svc_stats->ls_cnt_header[PTLRPC_REQWAIT_CNTR]; header = &obd->obd_svc_stats->ls_cnt_header[PTLRPC_REQWAIT_CNTR];
...@@ -779,7 +779,7 @@ int lprocfs_rd_state(struct seq_file *m, void *data) ...@@ -779,7 +779,7 @@ int lprocfs_rd_state(struct seq_file *m, void *data)
struct obd_import *imp; struct obd_import *imp;
int j, k, rc; int j, k, rc;
LASSERT(obd != NULL); LASSERT(obd);
rc = lprocfs_climp_check(obd); rc = lprocfs_climp_check(obd);
if (rc) if (rc)
return rc; return rc;
...@@ -825,7 +825,7 @@ int lprocfs_rd_timeouts(struct seq_file *m, void *data) ...@@ -825,7 +825,7 @@ int lprocfs_rd_timeouts(struct seq_file *m, void *data)
struct dhms ts; struct dhms ts;
int i, rc; int i, rc;
LASSERT(obd != NULL); LASSERT(obd);
rc = lprocfs_climp_check(obd); rc = lprocfs_climp_check(obd);
if (rc) if (rc)
return rc; return rc;
...@@ -967,12 +967,12 @@ int lprocfs_stats_alloc_one(struct lprocfs_stats *stats, unsigned int cpuid) ...@@ -967,12 +967,12 @@ int lprocfs_stats_alloc_one(struct lprocfs_stats *stats, unsigned int cpuid)
unsigned long flags = 0; unsigned long flags = 0;
int i; int i;
LASSERT(stats->ls_percpu[cpuid] == NULL); LASSERT(!stats->ls_percpu[cpuid]);
LASSERT((stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) == 0); LASSERT((stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) == 0);
percpusize = lprocfs_stats_counter_size(stats); percpusize = lprocfs_stats_counter_size(stats);
LIBCFS_ALLOC_ATOMIC(stats->ls_percpu[cpuid], percpusize); LIBCFS_ALLOC_ATOMIC(stats->ls_percpu[cpuid], percpusize);
if (stats->ls_percpu[cpuid] != NULL) { if (stats->ls_percpu[cpuid]) {
rc = 0; rc = 0;
if (unlikely(stats->ls_biggest_alloc_num <= cpuid)) { if (unlikely(stats->ls_biggest_alloc_num <= cpuid)) {
if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
...@@ -1017,7 +1017,7 @@ struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num, ...@@ -1017,7 +1017,7 @@ struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num,
/* alloc percpu pointers for all possible cpu slots */ /* alloc percpu pointers for all possible cpu slots */
LIBCFS_ALLOC(stats, offsetof(typeof(*stats), ls_percpu[num_entry])); LIBCFS_ALLOC(stats, offsetof(typeof(*stats), ls_percpu[num_entry]));
if (stats == NULL) if (!stats)
return NULL; return NULL;
stats->ls_num = num; stats->ls_num = num;
...@@ -1027,14 +1027,14 @@ struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num, ...@@ -1027,14 +1027,14 @@ struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num,
/* alloc num of counter headers */ /* alloc num of counter headers */
LIBCFS_ALLOC(stats->ls_cnt_header, LIBCFS_ALLOC(stats->ls_cnt_header,
stats->ls_num * sizeof(struct lprocfs_counter_header)); stats->ls_num * sizeof(struct lprocfs_counter_header));
if (stats->ls_cnt_header == NULL) if (!stats->ls_cnt_header)
goto fail; goto fail;
if ((flags & LPROCFS_STATS_FLAG_NOPERCPU) != 0) { if ((flags & LPROCFS_STATS_FLAG_NOPERCPU) != 0) {
/* contains only one set counters */ /* contains only one set counters */
percpusize = lprocfs_stats_counter_size(stats); percpusize = lprocfs_stats_counter_size(stats);
LIBCFS_ALLOC_ATOMIC(stats->ls_percpu[0], percpusize); LIBCFS_ALLOC_ATOMIC(stats->ls_percpu[0], percpusize);
if (stats->ls_percpu[0] == NULL) if (!stats->ls_percpu[0])
goto fail; goto fail;
stats->ls_biggest_alloc_num = 1; stats->ls_biggest_alloc_num = 1;
} else if ((flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0) { } else if ((flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0) {
...@@ -1059,7 +1059,7 @@ void lprocfs_free_stats(struct lprocfs_stats **statsh) ...@@ -1059,7 +1059,7 @@ void lprocfs_free_stats(struct lprocfs_stats **statsh)
unsigned int percpusize; unsigned int percpusize;
unsigned int i; unsigned int i;
if (stats == NULL || stats->ls_num == 0) if (!stats || stats->ls_num == 0)
return; return;
*statsh = NULL; *statsh = NULL;
...@@ -1070,9 +1070,9 @@ void lprocfs_free_stats(struct lprocfs_stats **statsh) ...@@ -1070,9 +1070,9 @@ void lprocfs_free_stats(struct lprocfs_stats **statsh)
percpusize = lprocfs_stats_counter_size(stats); percpusize = lprocfs_stats_counter_size(stats);
for (i = 0; i < num_entry; i++) for (i = 0; i < num_entry; i++)
if (stats->ls_percpu[i] != NULL) if (stats->ls_percpu[i])
LIBCFS_FREE(stats->ls_percpu[i], percpusize); LIBCFS_FREE(stats->ls_percpu[i], percpusize);
if (stats->ls_cnt_header != NULL) if (stats->ls_cnt_header)
LIBCFS_FREE(stats->ls_cnt_header, stats->ls_num * LIBCFS_FREE(stats->ls_cnt_header, stats->ls_num *
sizeof(struct lprocfs_counter_header)); sizeof(struct lprocfs_counter_header));
LIBCFS_FREE(stats, offsetof(typeof(*stats), ls_percpu[num_entry])); LIBCFS_FREE(stats, offsetof(typeof(*stats), ls_percpu[num_entry]));
...@@ -1090,7 +1090,7 @@ void lprocfs_clear_stats(struct lprocfs_stats *stats) ...@@ -1090,7 +1090,7 @@ void lprocfs_clear_stats(struct lprocfs_stats *stats)
num_entry = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags); num_entry = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
for (i = 0; i < num_entry; i++) { for (i = 0; i < num_entry; i++) {
if (stats->ls_percpu[i] == NULL) if (!stats->ls_percpu[i])
continue; continue;
for (j = 0; j < stats->ls_num; j++) { for (j = 0; j < stats->ls_num; j++) {
percpu_cntr = lprocfs_stats_counter_get(stats, i, j); percpu_cntr = lprocfs_stats_counter_get(stats, i, j);
...@@ -1230,10 +1230,8 @@ void lprocfs_counter_init(struct lprocfs_stats *stats, int index, ...@@ -1230,10 +1230,8 @@ void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
unsigned int i; unsigned int i;
unsigned int num_cpu; unsigned int num_cpu;
LASSERT(stats != NULL);
header = &stats->ls_cnt_header[index]; header = &stats->ls_cnt_header[index];
LASSERTF(header != NULL, "Failed to allocate stats header:[%d]%s/%s\n", LASSERTF(header, "Failed to allocate stats header:[%d]%s/%s\n",
index, name, units); index, name, units);
header->lc_config = conf; header->lc_config = conf;
...@@ -1242,7 +1240,7 @@ void lprocfs_counter_init(struct lprocfs_stats *stats, int index, ...@@ -1242,7 +1240,7 @@ void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags); num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
for (i = 0; i < num_cpu; ++i) { for (i = 0; i < num_cpu; ++i) {
if (stats->ls_percpu[i] == NULL) if (!stats->ls_percpu[i])
continue; continue;
percpu_cntr = lprocfs_stats_counter_get(stats, i, index); percpu_cntr = lprocfs_stats_counter_get(stats, i, index);
percpu_cntr->lc_count = 0; percpu_cntr->lc_count = 0;
...@@ -1270,7 +1268,7 @@ __s64 lprocfs_read_helper(struct lprocfs_counter *lc, ...@@ -1270,7 +1268,7 @@ __s64 lprocfs_read_helper(struct lprocfs_counter *lc,
{ {
__s64 ret = 0; __s64 ret = 0;
if (lc == NULL || header == NULL) if (!lc || !header)
return 0; return 0;
switch (field) { switch (field) {
...@@ -1412,7 +1410,7 @@ char *lprocfs_find_named_value(const char *buffer, const char *name, ...@@ -1412,7 +1410,7 @@ char *lprocfs_find_named_value(const char *buffer, const char *name,
/* there is no strnstr() in rhel5 and ubuntu kernels */ /* there is no strnstr() in rhel5 and ubuntu kernels */
val = lprocfs_strnstr(buffer, name, buflen); val = lprocfs_strnstr(buffer, name, buflen);
if (val == NULL) if (!val)
return (char *)buffer; return (char *)buffer;
val += strlen(name); /* skip prefix */ val += strlen(name); /* skip prefix */
......
drivers/staging/lustre/lustre/obdclass/lustre_handles.c
View file @ cce3c2da
...@@ -65,7 +65,7 @@ void class_handle_hash(struct portals_handle *h, ...@@ -65,7 +65,7 @@ void class_handle_hash(struct portals_handle *h,
{ {
struct handle_bucket *bucket; struct handle_bucket *bucket;
LASSERT(h != NULL); LASSERT(h);
LASSERT(list_empty(&h->h_link)); LASSERT(list_empty(&h->h_link));
/* /*
...@@ -140,7 +140,7 @@ void *class_handle2object(__u64 cookie) ...@@ -140,7 +140,7 @@ void *class_handle2object(__u64 cookie)
struct portals_handle *h; struct portals_handle *h;
void *retval = NULL; void *retval = NULL;
LASSERT(handle_hash != NULL); LASSERT(handle_hash);
/* Be careful when you want to change this code. See the /* Be careful when you want to change this code. See the
* rcu_read_lock() definition on top this file. - jxiong */ * rcu_read_lock() definition on top this file. - jxiong */
...@@ -170,7 +170,7 @@ void class_handle_free_cb(struct rcu_head *rcu) ...@@ -170,7 +170,7 @@ void class_handle_free_cb(struct rcu_head *rcu)
struct portals_handle *h = RCU2HANDLE(rcu); struct portals_handle *h = RCU2HANDLE(rcu);
void *ptr = (void *)(unsigned long)h->h_cookie; void *ptr = (void *)(unsigned long)h->h_cookie;
if (h->h_ops->hop_free != NULL) if (h->h_ops->hop_free)
h->h_ops->hop_free(ptr, h->h_size); h->h_ops->hop_free(ptr, h->h_size);
else else
kfree(ptr); kfree(ptr);
...@@ -183,11 +183,11 @@ int class_handle_init(void) ...@@ -183,11 +183,11 @@ int class_handle_init(void)
struct timespec64 ts; struct timespec64 ts;
int seed[2]; int seed[2];
LASSERT(handle_hash == NULL); LASSERT(!handle_hash);
handle_hash = libcfs_kvzalloc(sizeof(*bucket) * HANDLE_HASH_SIZE, handle_hash = libcfs_kvzalloc(sizeof(*bucket) * HANDLE_HASH_SIZE,
GFP_NOFS); GFP_NOFS);
if (handle_hash == NULL) if (!handle_hash)
return -ENOMEM; return -ENOMEM;
spin_lock_init(&handle_base_lock); spin_lock_init(&handle_base_lock);
...@@ -234,7 +234,7 @@ void class_handle_cleanup(void) ...@@ -234,7 +234,7 @@ void class_handle_cleanup(void)
{ {
int count; int count;
LASSERT(handle_hash != NULL); LASSERT(handle_hash);
count = cleanup_all_handles(); count = cleanup_all_handles();
......
drivers/staging/lustre/lustre/obdclass/lustre_peer.c
View file @ cce3c2da
...@@ -151,7 +151,7 @@ int class_del_uuid(const char *uuid) ...@@ -151,7 +151,7 @@ int class_del_uuid(const char *uuid)
struct uuid_nid_data *data; struct uuid_nid_data *data;
spin_lock(&g_uuid_lock); spin_lock(&g_uuid_lock);
if (uuid != NULL) { if (uuid) {
struct obd_uuid tmp; struct obd_uuid tmp;
obd_str2uuid(&tmp, uuid); obd_str2uuid(&tmp, uuid);
...@@ -165,7 +165,7 @@ int class_del_uuid(const char *uuid) ...@@ -165,7 +165,7 @@ int class_del_uuid(const char *uuid)
list_splice_init(&g_uuid_list, &deathrow); list_splice_init(&g_uuid_list, &deathrow);
spin_unlock(&g_uuid_lock); spin_unlock(&g_uuid_lock);
if (uuid != NULL && list_empty(&deathrow)) { if (uuid && list_empty(&deathrow)) {
CDEBUG(D_INFO, "Try to delete a non-existent uuid %s\n", uuid); CDEBUG(D_INFO, "Try to delete a non-existent uuid %s\n", uuid);
return -EINVAL; return -EINVAL;
} }
......
drivers/staging/lustre/lustre/obdclass/obd_config.c
View file @ cce3c2da
...@@ -210,7 +210,7 @@ static int class_attach(struct lustre_cfg *lcfg) ...@@ -210,7 +210,7 @@ static int class_attach(struct lustre_cfg *lcfg)
name, typename, rc); name, typename, rc);
goto out; goto out;
} }
LASSERTF(obd != NULL, "Cannot get obd device %s of type %s\n", LASSERTF(obd, "Cannot get obd device %s of type %s\n",
name, typename); name, typename);
LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC, LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC,
"obd %p obd_magic %08X != %08X\n", "obd %p obd_magic %08X != %08X\n",
...@@ -272,9 +272,9 @@ static int class_attach(struct lustre_cfg *lcfg) ...@@ -272,9 +272,9 @@ static int class_attach(struct lustre_cfg *lcfg)
obd->obd_minor, typename, atomic_read(&obd->obd_refcount)); obd->obd_minor, typename, atomic_read(&obd->obd_refcount));
return 0; return 0;
out: out:
if (obd != NULL) { if (obd)
class_release_dev(obd); class_release_dev(obd);
}
return rc; return rc;
} }
...@@ -286,7 +286,7 @@ static int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg) ...@@ -286,7 +286,7 @@ static int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
int err = 0; int err = 0;
struct obd_export *exp; struct obd_export *exp;
LASSERT(obd != NULL); LASSERT(obd);
LASSERTF(obd == class_num2obd(obd->obd_minor), LASSERTF(obd == class_num2obd(obd->obd_minor),
"obd %p != obd_devs[%d] %p\n", "obd %p != obd_devs[%d] %p\n",
obd, obd->obd_minor, class_num2obd(obd->obd_minor)); obd, obd->obd_minor, class_num2obd(obd->obd_minor));
...@@ -1183,7 +1183,7 @@ int class_config_llog_handler(const struct lu_env *env, ...@@ -1183,7 +1183,7 @@ int class_config_llog_handler(const struct lu_env *env,
/* we override the llog's uuid for clients, to insure they /* we override the llog's uuid for clients, to insure they
are unique */ are unique */
if (clli && clli->cfg_instance != NULL && if (clli && clli->cfg_instance &&
lcfg->lcfg_command == LCFG_ATTACH) { lcfg->lcfg_command == LCFG_ATTACH) {
lustre_cfg_bufs_set_string(&bufs, 2, lustre_cfg_bufs_set_string(&bufs, 2,
clli->cfg_uuid.uuid); clli->cfg_uuid.uuid);
...@@ -1270,7 +1270,7 @@ int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt, ...@@ -1270,7 +1270,7 @@ int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
if (cfg) { if (cfg) {
cd.lpcd_first_idx = cfg->cfg_last_idx; cd.lpcd_first_idx = cfg->cfg_last_idx;
callback = cfg->cfg_callback; callback = cfg->cfg_callback;
LASSERT(callback != NULL); LASSERT(callback);
} else { } else {
callback = class_config_llog_handler; callback = class_config_llog_handler;
} }
......
drivers/staging/lustre/lustre/obdclass/obd_mount.c
View file @ cce3c2da
...@@ -518,13 +518,12 @@ static int lustre_free_lsi(struct super_block *sb) ...@@ -518,13 +518,12 @@ static int lustre_free_lsi(struct super_block *sb)
{ {
struct lustre_sb_info *lsi = s2lsi(sb); struct lustre_sb_info *lsi = s2lsi(sb);
LASSERT(lsi != NULL);
CDEBUG(D_MOUNT, "Freeing lsi %p\n", lsi); CDEBUG(D_MOUNT, "Freeing lsi %p\n", lsi);
/* someone didn't call server_put_mount. */ /* someone didn't call server_put_mount. */
LASSERT(atomic_read(&lsi->lsi_mounts) == 0); LASSERT(atomic_read(&lsi->lsi_mounts) == 0);
if (lsi->lsi_lmd != NULL) { if (lsi->lsi_lmd) {
kfree(lsi->lsi_lmd->lmd_dev); kfree(lsi->lsi_lmd->lmd_dev);
kfree(lsi->lsi_lmd->lmd_profile); kfree(lsi->lsi_lmd->lmd_profile);
kfree(lsi->lsi_lmd->lmd_mgssec); kfree(lsi->lsi_lmd->lmd_mgssec);
...@@ -538,7 +537,7 @@ static int lustre_free_lsi(struct super_block *sb) ...@@ -538,7 +537,7 @@ static int lustre_free_lsi(struct super_block *sb)
kfree(lsi->lsi_lmd); kfree(lsi->lsi_lmd);
} }
LASSERT(lsi->lsi_llsbi == NULL); LASSERT(!lsi->lsi_llsbi);
kfree(lsi); kfree(lsi);
s2lsi_nocast(sb) = NULL; s2lsi_nocast(sb) = NULL;
...@@ -551,8 +550,6 @@ static int lustre_put_lsi(struct super_block *sb) ...@@ -551,8 +550,6 @@ static int lustre_put_lsi(struct super_block *sb)
{ {
struct lustre_sb_info *lsi = s2lsi(sb); struct lustre_sb_info *lsi = s2lsi(sb);
LASSERT(lsi != NULL);
CDEBUG(D_MOUNT, "put %p %d\n", sb, atomic_read(&lsi->lsi_mounts)); CDEBUG(D_MOUNT, "put %p %d\n", sb, atomic_read(&lsi->lsi_mounts));
if (atomic_dec_and_test(&lsi->lsi_mounts)) { if (atomic_dec_and_test(&lsi->lsi_mounts)) {
lustre_free_lsi(sb); lustre_free_lsi(sb);
...@@ -588,12 +585,12 @@ static int server_name2fsname(const char *svname, char *fsname, ...@@ -588,12 +585,12 @@ static int server_name2fsname(const char *svname, char *fsname,
if (dash == svname) if (dash == svname)
return -EINVAL; return -EINVAL;
if (fsname != NULL) { if (fsname) {
strncpy(fsname, svname, dash - svname); strncpy(fsname, svname, dash - svname);
fsname[dash - svname] = '\0'; fsname[dash - svname] = '\0';
} }
if (endptr != NULL) if (endptr)
*endptr = dash; *endptr = dash;
return 0; return 0;
...@@ -627,18 +624,18 @@ static int server_name2index(const char *svname, __u32 *idx, ...@@ -627,18 +624,18 @@ static int server_name2index(const char *svname, __u32 *idx,
dash += 3; dash += 3;
if (strncmp(dash, "all", 3) == 0) { if (strncmp(dash, "all", 3) == 0) {
if (endptr != NULL) if (endptr)
*endptr = dash + 3; *endptr = dash + 3;
return rc | LDD_F_SV_ALL; return rc | LDD_F_SV_ALL;
} }
index = simple_strtoul(dash, (char **)endptr, 16); index = simple_strtoul(dash, (char **)endptr, 16);
if (idx != NULL) if (idx)
*idx = index; *idx = index;
/* Account for -mdc after index that is possible when specifying mdt */ /* Account for -mdc after index that is possible when specifying mdt */
if (endptr != NULL && strncmp(LUSTRE_MDC_NAME, *endptr + 1, if (endptr && strncmp(LUSTRE_MDC_NAME, *endptr + 1,
sizeof(LUSTRE_MDC_NAME)-1) == 0) sizeof(LUSTRE_MDC_NAME) - 1) == 0)
*endptr += sizeof(LUSTRE_MDC_NAME); *endptr += sizeof(LUSTRE_MDC_NAME);
return rc; return rc;
...@@ -788,7 +785,7 @@ static int lmd_parse_mgssec(struct lustre_mount_data *lmd, char *ptr) ...@@ -788,7 +785,7 @@ static int lmd_parse_mgssec(struct lustre_mount_data *lmd, char *ptr)
lmd->lmd_mgssec = NULL; lmd->lmd_mgssec = NULL;
tail = strchr(ptr, ','); tail = strchr(ptr, ',');
if (tail == NULL) if (!tail)
length = strlen(ptr); length = strlen(ptr);
else else
length = tail - ptr; length = tail - ptr;
...@@ -807,14 +804,14 @@ static int lmd_parse_string(char **handle, char *ptr) ...@@ -807,14 +804,14 @@ static int lmd_parse_string(char **handle, char *ptr)
char *tail; char *tail;
int length; int length;
if ((handle == NULL) || (ptr == NULL)) if (!handle || !ptr)
return -EINVAL; return -EINVAL;
kfree(*handle); kfree(*handle);
*handle = NULL; *handle = NULL;
tail = strchr(ptr, ','); tail = strchr(ptr, ',');
if (tail == NULL) if (!tail)
length = strlen(ptr); length = strlen(ptr);
else else
length = tail - ptr; length = tail - ptr;
...@@ -847,14 +844,14 @@ static int lmd_parse_mgs(struct lustre_mount_data *lmd, char **ptr) ...@@ -847,14 +844,14 @@ static int lmd_parse_mgs(struct lustre_mount_data *lmd, char **ptr)
return -EINVAL; return -EINVAL;
} }
if (lmd->lmd_mgs != NULL) if (lmd->lmd_mgs)
oldlen = strlen(lmd->lmd_mgs) + 1; oldlen = strlen(lmd->lmd_mgs) + 1;
mgsnid = kzalloc(oldlen + length + 1, GFP_NOFS); mgsnid = kzalloc(oldlen + length + 1, GFP_NOFS);
if (!mgsnid) if (!mgsnid)
return -ENOMEM; return -ENOMEM;
if (lmd->lmd_mgs != NULL) { if (lmd->lmd_mgs) {
/* Multiple mgsnid= are taken to mean failover locations */ /* Multiple mgsnid= are taken to mean failover locations */
memcpy(mgsnid, lmd->lmd_mgs, oldlen); memcpy(mgsnid, lmd->lmd_mgs, oldlen);
mgsnid[oldlen - 1] = ':'; mgsnid[oldlen - 1] = ':';
...@@ -981,7 +978,7 @@ static int lmd_parse(char *options, struct lustre_mount_data *lmd) ...@@ -981,7 +978,7 @@ static int lmd_parse(char *options, struct lustre_mount_data *lmd)
size_t length, params_length; size_t length, params_length;
char *tail = strchr(s1 + 6, ','); char *tail = strchr(s1 + 6, ',');
if (tail == NULL) if (!tail)
length = strlen(s1); length = strlen(s1);
else else
length = tail - s1; length = tail - s1;
...@@ -1011,7 +1008,7 @@ static int lmd_parse(char *options, struct lustre_mount_data *lmd) ...@@ -1011,7 +1008,7 @@ static int lmd_parse(char *options, struct lustre_mount_data *lmd)
/* Find next opt */ /* Find next opt */
s2 = strchr(s1, ','); s2 = strchr(s1, ',');
if (s2 == NULL) { if (!s2) {
if (clear) if (clear)
*s1 = '\0'; *s1 = '\0';
break; break;
...@@ -1113,9 +1110,9 @@ static int lustre_fill_super(struct super_block *sb, void *data, int silent) ...@@ -1113,9 +1110,9 @@ static int lustre_fill_super(struct super_block *sb, void *data, int silent)
if (lmd_is_client(lmd)) { if (lmd_is_client(lmd)) {
CDEBUG(D_MOUNT, "Mounting client %s\n", lmd->lmd_profile); CDEBUG(D_MOUNT, "Mounting client %s\n", lmd->lmd_profile);
if (client_fill_super == NULL) if (!client_fill_super)
request_module("lustre"); request_module("lustre");
if (client_fill_super == NULL) { if (!client_fill_super) {
LCONSOLE_ERROR_MSG(0x165, "Nothing registered for client mount! Is the 'lustre' module loaded?\n"); LCONSOLE_ERROR_MSG(0x165, "Nothing registered for client mount! Is the 'lustre' module loaded?\n");
lustre_put_lsi(sb); lustre_put_lsi(sb);
rc = -ENODEV; rc = -ENODEV;
......
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