Lines Matching refs:brk
377 * like trying to un-brk an area that has already been mapped
381 SYSCALL_DEFINE1(brk, unsigned long, brk)
385 if (brk < mm->start_brk || brk > mm->context.end_brk)
386 return mm->brk;
388 if (mm->brk == brk)
389 return mm->brk;
392 * Always allow shrinking brk
394 if (brk <= mm->brk) {
395 mm->brk = brk;
396 return brk;
402 flush_icache_user_range(mm->brk, brk);
403 return mm->brk = brk;