struct lov_stripe_md *lsm_alloc_plain(__u16 stripe_count, int *size)
{
struct lov_stripe_md *lsm;
struct lov_oinfo *loi;
int i, oinfo_ptrs_size;
LASSERT(stripe_count <= LOV_MAX_STRIPE_COUNT);
oinfo_ptrs_size = sizeof(struct lov_oinfo *) * stripe_count;
*size = sizeof(struct lov_stripe_md) + oinfo_ptrs_size;
OBD_ALLOC_LARGE(lsm, *size);
if (!lsm)
return NULL;;
for (i = 0; i < stripe_count; i++) {
OBD_SLAB_ALLOC_PTR_GFP(loi, lov_oinfo_slab, __GFP_IO);
if (loi == NULL)
goto err;
lsm->lsm_oinfo[i] = loi;
}
lsm->lsm_stripe_count = stripe_count;
return lsm;
err:
while (--i >= 0)
OBD_SLAB_FREE(lsm->lsm_oinfo[i], lov_oinfo_slab, sizeof(*loi));
OBD_FREE_LARGE(lsm, *size);
return NULL;
}
/*
* Concurrency: no concurrent access is possible that early in object
* life-cycle.
*/
struct lu_object *osd_object_alloc(const struct lu_env *env,
const struct lu_object_header *hdr,
struct lu_device *d)
{
struct osd_object *mo;
OBD_SLAB_ALLOC_PTR_GFP(mo, osd_object_kmem, GFP_NOFS);
if (mo != NULL) {
struct lu_object *l;
l = &mo->oo_dt.do_lu;
dt_object_init(&mo->oo_dt, NULL, d);
mo->oo_dt.do_ops = &osd_obj_ops;
l->lo_ops = &osd_lu_obj_ops;
INIT_LIST_HEAD(&mo->oo_sa_linkage);
INIT_LIST_HEAD(&mo->oo_unlinked_linkage);
init_rwsem(&mo->oo_sem);
init_rwsem(&mo->oo_guard);
rwlock_init(&mo->oo_attr_lock);
mo->oo_destroy = OSD_DESTROY_NONE;
return l;
} else {
return NULL;
}
}
struct lu_object *vvp_object_alloc(const struct lu_env *env,
const struct lu_object_header *unused,
struct lu_device *dev)
{
struct vvp_object *vob;
struct lu_object *obj;
OBD_SLAB_ALLOC_PTR_GFP(vob, vvp_object_kmem, GFP_NOFS);
if (vob != NULL) {
struct cl_object_header *hdr;
obj = &vob->vob_cl.co_lu;
hdr = &vob->vob_header;
cl_object_header_init(hdr);
hdr->coh_page_bufsize = cfs_size_round(sizeof(struct cl_page));
lu_object_init(obj, &hdr->coh_lu, dev);
lu_object_add_top(&hdr->coh_lu, obj);
vob->vob_cl.co_ops = &vvp_ops;
obj->lo_ops = &vvp_lu_obj_ops;
} else
obj = NULL;
return obj;
}
static inline struct ll_remote_perm *alloc_ll_remote_perm(void)
{
struct ll_remote_perm *lrp;
OBD_SLAB_ALLOC_PTR_GFP(lrp, ll_remote_perm_cachep, GFP_KERNEL);
if (lrp)
INIT_HLIST_NODE(&lrp->lrp_list);
return lrp;
}
static void *osc_session_init(const struct lu_context *ctx,
struct lu_context_key *key)
{
struct osc_session *info;
OBD_SLAB_ALLOC_PTR_GFP(info, osc_session_kmem, __GFP_IO);
if (info == NULL)
info = ERR_PTR(-ENOMEM);
return info;
}
static void *vvp_key_init(const struct lu_context *ctx,
struct lu_context_key *key)
{
struct vvp_thread_info *info;
OBD_SLAB_ALLOC_PTR_GFP(info, vvp_thread_kmem, GFP_NOFS);
if (info == NULL)
info = ERR_PTR(-ENOMEM);
return info;
}
static void *vvp_session_key_init(const struct lu_context *ctx,
struct lu_context_key *key)
{
struct vvp_session *session;
OBD_SLAB_ALLOC_PTR_GFP(session, vvp_session_kmem, GFP_NOFS);
if (session == NULL)
session = ERR_PTR(-ENOMEM);
return session;
}
static void *lov_session_key_init(const struct lu_context *ctx,
struct lu_context_key *key)
{
struct lov_session *info;
OBD_SLAB_ALLOC_PTR_GFP(info, lov_session_kmem, GFP_NOFS);
if (info == NULL)
info = ERR_PTR(-ENOMEM);
return info;
}
static struct inode *ll_alloc_inode(struct super_block *sb)
{
struct ll_inode_info *lli;
ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_ALLOC_INODE, 1);
OBD_SLAB_ALLOC_PTR_GFP(lli, ll_inode_cachep, CFS_ALLOC_IO);
if (lli == NULL)
return NULL;
inode_init_once(&lli->lli_vfs_inode);
return &lli->lli_vfs_inode;
}
static void *lov_key_init(const struct lu_context *ctx,
struct lu_context_key *key)
{
struct lov_thread_info *info;
OBD_SLAB_ALLOC_PTR_GFP(info, lov_thread_kmem, GFP_NOFS);
if (info != NULL)
INIT_LIST_HEAD(&info->lti_closure.clc_list);
else
info = ERR_PTR(-ENOMEM);
return info;
}
int osc_req_init(const struct lu_env *env, struct cl_device *dev,
struct cl_req *req)
{
struct osc_req *or;
int result;
OBD_SLAB_ALLOC_PTR_GFP(or, osc_req_kmem, GFP_NOFS);
if (or != NULL) {
cl_req_slice_add(req, &or->or_cl, dev, &osc_req_ops);
result = 0;
} else
result = -ENOMEM;
return result;
}
static int lovsub_req_init(const struct lu_env *env, struct cl_device *dev,
struct cl_req *req)
{
struct lovsub_req *lsr;
int result;
OBD_SLAB_ALLOC_PTR_GFP(lsr, lovsub_req_kmem, GFP_NOFS);
if (lsr != NULL) {
cl_req_slice_add(req, &lsr->lsrq_cl, dev, &lovsub_req_ops);
result = 0;
} else
result = -ENOMEM;
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);
}
struct lu_object *osc_object_alloc(const struct lu_env *env,
const struct lu_object_header *unused,
struct lu_device *dev)
{
struct osc_object *osc;
struct lu_object *obj;
OBD_SLAB_ALLOC_PTR_GFP(osc, osc_object_kmem, GFP_NOFS);
if (osc != NULL) {
obj = osc2lu(osc);
lu_object_init(obj, NULL, dev);
osc->oo_cl.co_ops = &osc_ops;
obj->lo_ops = &osc_lu_obj_ops;
} else
obj = NULL;
return obj;
}
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;
}
struct lu_object *lovsub_object_alloc(const struct lu_env *env,
const struct lu_object_header *unused,
struct lu_device *dev)
{
struct lovsub_object *los;
struct lu_object *obj;
OBD_SLAB_ALLOC_PTR_GFP(los, lovsub_object_kmem, GFP_NOFS);
if (los != NULL) {
struct cl_object_header *hdr;
obj = lovsub2lu(los);
hdr = &los->lso_header;
cl_object_header_init(hdr);
lu_object_init(obj, &hdr->coh_lu, dev);
lu_object_add_top(&hdr->coh_lu, obj);
los->lso_cl.co_ops = &lovsub_ops;
obj->lo_ops = &lovsub_lu_obj_ops;
} else
obj = NULL;
return obj;
}
struct lu_object *lov_object_alloc(const struct lu_env *env,
const struct lu_object_header *unused,
struct lu_device *dev)
{
struct lov_object *lov;
struct lu_object *obj;
OBD_SLAB_ALLOC_PTR_GFP(lov, lov_object_kmem, GFP_NOFS);
if (lov != NULL) {
obj = lov2lu(lov);
lu_object_init(obj, NULL, dev);
lov->lo_cl.co_ops = &lov_ops;
lov->lo_type = -1; /* invalid, to catch uninitialized type */
/*
* object io operation vector (cl_object::co_iop) is installed
* later in lov_object_init(), as different vectors are used
* for object with different layouts.
*/
obj->lo_ops = &lov_lu_obj_ops;
} else
obj = NULL;
return obj;
}
/*
* Concurrency: no concurrent access is possible that early in object
* life-cycle.
*/
struct lu_object *osd_object_alloc(const struct lu_env *env,
const struct lu_object_header *hdr,
struct lu_device *d)
{
struct osd_object *mo;
OBD_SLAB_ALLOC_PTR_GFP(mo, osd_object_kmem, CFS_ALLOC_IO);
if (mo != NULL) {
struct lu_object *l;
l = &mo->oo_dt.do_lu;
dt_object_init(&mo->oo_dt, NULL, d);
mo->oo_dt.do_ops = &osd_obj_ops;
l->lo_ops = &osd_lu_obj_ops;
CFS_INIT_LIST_HEAD(&mo->oo_sa_linkage);
init_rwsem(&mo->oo_sem);
sema_init(&mo->oo_guard, 1);
rwlock_init(&mo->oo_attr_lock);
return l;
} else {
return NULL;
}
}