/**
* Updates object attributes from a lock value block (lvb) received together
* with the DLM lock reply from the server. Copy of osc_update_enqueue()
* logic.
*
* This can be optimized to not update attributes when lock is a result of a
* local match.
*
* Called under lock and resource spin-locks.
*/
static void osc_lock_lvb_update(const struct lu_env *env, struct osc_lock *olck,
int rc)
{
struct ost_lvb *lvb;
struct cl_object *obj;
struct lov_oinfo *oinfo;
struct cl_attr *attr;
unsigned valid;
if (!(olck->ols_flags & LDLM_FL_LVB_READY))
return;
lvb = &olck->ols_lvb;
obj = olck->ols_cl.cls_obj;
oinfo = cl2osc(obj)->oo_oinfo;
attr = &osc_env_info(env)->oti_attr;
valid = CAT_BLOCKS | CAT_ATIME | CAT_CTIME | CAT_MTIME | CAT_SIZE;
cl_lvb2attr(attr, lvb);
cl_object_attr_lock(obj);
if (rc == 0) {
struct ldlm_lock *dlmlock;
__u64 size;
dlmlock = olck->ols_lock;
LASSERT(dlmlock != NULL);
/* re-grab LVB from a dlm lock under DLM spin-locks. */
*lvb = *(struct ost_lvb *)dlmlock->l_lvb_data;
size = lvb->lvb_size;
/* Extend KMS up to the end of this lock and no further
* A lock on [x,y] means a KMS of up to y + 1 bytes! */
if (size > dlmlock->l_policy_data.l_extent.end)
size = dlmlock->l_policy_data.l_extent.end + 1;
if (size >= oinfo->loi_kms) {
LDLM_DEBUG(dlmlock, "lock acquired, setting rss="LPU64
", kms="LPU64, lvb->lvb_size, size);
valid |= CAT_KMS;
attr->cat_kms = size;
} else {
LDLM_DEBUG(dlmlock, "lock acquired, setting rss="
LPU64"; leaving kms="LPU64", end="LPU64,
lvb->lvb_size, oinfo->loi_kms,
dlmlock->l_policy_data.l_extent.end);
}
ldlm_lock_allow_match_locked(dlmlock);
} else if (rc == -ENAVAIL && olck->ols_glimpse) {
CDEBUG(D_INODE, "glimpsed, setting rss="LPU64"; leaving"
" kms="LPU64"\n", lvb->lvb_size, oinfo->loi_kms);
} else
valid = 0;
if (valid != 0)
cl_object_attr_set(env, obj, attr, valid);
cl_object_attr_unlock(obj);
}
/**
* Updates object attributes from a lock value block (lvb) received together
* with the DLM lock reply from the server. Copy of osc_update_enqueue()
* logic.
*
* This can be optimized to not update attributes when lock is a result of a
* local match.
*
* Called under lock and resource spin-locks.
*/
static void osc_lock_lvb_update(const struct lu_env *env,
struct osc_object *osc,
struct ldlm_lock *dlmlock,
struct ost_lvb *lvb)
{
struct cl_object *obj = osc2cl(osc);
struct lov_oinfo *oinfo = osc->oo_oinfo;
struct cl_attr *attr = &osc_env_info(env)->oti_attr;
unsigned valid;
ENTRY;
valid = CAT_BLOCKS | CAT_ATIME | CAT_CTIME | CAT_MTIME | CAT_SIZE;
if (lvb == NULL) {
LASSERT(dlmlock != NULL);
lvb = dlmlock->l_lvb_data;
}
cl_lvb2attr(attr, lvb);
cl_object_attr_lock(obj);
if (dlmlock != NULL) {
__u64 size;
check_res_locked(dlmlock->l_resource);
LASSERT(lvb == dlmlock->l_lvb_data);
size = lvb->lvb_size;
/* Extend KMS up to the end of this lock and no further
* A lock on [x,y] means a KMS of up to y + 1 bytes! */
if (size > dlmlock->l_policy_data.l_extent.end)
size = dlmlock->l_policy_data.l_extent.end + 1;
if (size >= oinfo->loi_kms) {
LDLM_DEBUG(dlmlock, "lock acquired, setting rss=%llu"
", kms=%llu", lvb->lvb_size, size);
valid |= CAT_KMS;
attr->cat_kms = size;
} else {
LDLM_DEBUG(dlmlock, "lock acquired, setting rss="
"%llu; leaving kms=%llu, end=%llu",
lvb->lvb_size, oinfo->loi_kms,
dlmlock->l_policy_data.l_extent.end);
}
ldlm_lock_allow_match_locked(dlmlock);
}
cl_object_attr_update(env, obj, attr, valid);
cl_object_attr_unlock(obj);
EXIT;
}
