prev_end         2595 user/usertests.c   char *i, *prev_end, *new_end;
prev_end         2597 user/usertests.c   prev_end = sbrklazy(REGION_SZ);
prev_end         2598 user/usertests.c   if (prev_end == (char *) SBRK_ERROR) {
prev_end         2602 user/usertests.c   new_end = prev_end + REGION_SZ;
prev_end         2604 user/usertests.c   for (i = prev_end + PGSIZE; i < new_end; i += 64 * PGSIZE)
prev_end         2607 user/usertests.c   for (i = prev_end + PGSIZE; i < new_end; i += 64 * PGSIZE) {
prev_end         2624 user/usertests.c   char *i, *prev_end, *new_end;
prev_end         2626 user/usertests.c   prev_end = sbrklazy(REGION_SZ);
prev_end         2627 user/usertests.c   if (prev_end == (char*)SBRK_ERROR) {
prev_end         2631 user/usertests.c   new_end = prev_end + REGION_SZ;
prev_end         2633 user/usertests.c   for (i = prev_end + PGSIZE; i < new_end; i += PGSIZE * PGSIZE)
prev_end         2636 user/usertests.c   for (i = prev_end + PGSIZE; i < new_end; i += PGSIZE * PGSIZE) {