int lov_lock_init_empty(const struct lu_env *env, struct cl_object *obj,
struct cl_lock *lock, const struct cl_io *io)
{
struct lov_lock *lck;
int result = -ENOMEM;
lck = kmem_cache_zalloc(lov_lock_kmem, GFP_NOFS);
if (lck) {
cl_lock_slice_add(lock, &lck->lls_cl, obj, &lov_empty_lock_ops);
result = 0;
}
return result;
}
int lov_lock_init_raid0(const struct lu_env *env, struct cl_object *obj,
struct cl_lock *lock, const struct cl_io *io)
{
struct lov_lock *lck;
int result = 0;
lck = lov_lock_sub_init(env, obj, lock);
if (!IS_ERR(lck))
cl_lock_slice_add(lock, &lck->lls_cl, obj, &lov_lock_ops);
else
result = PTR_ERR(lck);
return result;
}
int lovsub_lock_init(const struct lu_env *env, struct cl_object *obj,
struct cl_lock *lock, const struct cl_io *io)
{
struct lovsub_lock *lsk;
int result;
ENTRY;
OBD_SLAB_ALLOC_PTR_GFP(lsk, lovsub_lock_kmem, GFP_NOFS);
if (lsk != NULL) {
INIT_LIST_HEAD(&lsk->lss_parents);
cl_lock_slice_add(lock, &lsk->lss_cl, obj, &lovsub_lock_ops);
result = 0;
} else
result = -ENOMEM;
RETURN(result);
}
int vvp_lock_init(const struct lu_env *env, struct cl_object *obj,
struct cl_lock *lock, const struct cl_io *unused)
{
struct vvp_lock *vlk;
int result;
CLOBINVRNT(env, obj, vvp_object_invariant(obj));
vlk = kmem_cache_zalloc(vvp_lock_kmem, GFP_NOFS);
if (vlk) {
cl_lock_slice_add(lock, &vlk->vlk_cl, obj, &vvp_lock_ops);
result = 0;
} else {
result = -ENOMEM;
}
return result;
}
int vvp_lock_init(const struct lu_env *env, struct cl_object *obj,
struct cl_lock *lock, const struct cl_io *unused)
{
struct vvp_lock *vlk;
int result;
CLOBINVRNT(env, obj, vvp_object_invariant(obj));
OBD_SLAB_ALLOC_PTR_GFP(vlk, vvp_lock_kmem, GFP_NOFS);
if (vlk != NULL) {
cl_lock_slice_add(lock, &vlk->vlk_cl, obj, &vvp_lock_ops);
result = 0;
} else {
result = -ENOMEM;
}
return result;
}
