Lines Matching refs:brk
387 * like trying to un-brk an area that has already been mapped
391 SYSCALL_DEFINE1(brk, unsigned long, brk)
395 if (brk < mm->start_brk || brk > mm->context.end_brk)
396 return mm->brk;
398 if (mm->brk == brk)
399 return mm->brk;
402 * Always allow shrinking brk
404 if (brk <= mm->brk) {
405 mm->brk = brk;
406 return brk;
412 flush_icache_user_range(mm->brk, brk);
413 return mm->brk = brk;