314 	u32 num = realm->num_prior_parent_snaps + realm->num_snaps;  in build_snap_context()  local
327 		num += parent->cached_context->num_snaps;  in build_snap_context()
348 	if (num > (SIZE_MAX - sizeof(*snapc)) / sizeof(u64))  in build_snap_context()
350 	snapc = ceph_create_snap_context(num, GFP_NOFS);  in build_snap_context()
355 	num = 0;  in build_snap_context()
365 				snapc->snaps[num++] =  in build_snap_context()
370 	memcpy(snapc->snaps + num, realm->snaps,  in build_snap_context()
372 	num += realm->num_snaps;  in build_snap_context()
373 	memcpy(snapc->snaps + num, realm->prior_parent_snaps,  in build_snap_context()
375 	num += realm->num_prior_parent_snaps;  in build_snap_context()
377 	sort(snapc->snaps, num, sizeof(u64), cmpu64_rev, NULL);  in build_snap_context()
378 	snapc->num_snaps = num;  in build_snap_context()
423 static int dup_array(u64 **dst, __le64 *src, u32 num)  in dup_array()  argument
428 	if (num) {  in dup_array()
429 		*dst = kcalloc(num, sizeof(u64), GFP_NOFS);  in dup_array()
432 		for (i = 0; i < num; i++)  in dup_array()