Lines Matching refs:brk
396 * like trying to un-brk an area that has already been mapped
400 SYSCALL_DEFINE1(brk, unsigned long, brk)
404 if (brk < mm->start_brk || brk > mm->context.end_brk)
405 return mm->brk;
407 if (mm->brk == brk)
408 return mm->brk;
411 * Always allow shrinking brk
413 if (brk <= mm->brk) {
414 mm->brk = brk;
415 return brk;
421 flush_icache_range(mm->brk, brk);
422 return mm->brk = brk;