On Tue, Dec 03, 2024 at 06:05:07PM +0000, Lorenzo Stoakes wrote: >This series carries on the work the work started in previous series and ^^^ ^^^ Duplicated? >continued in commit 52956b0d7fb9 ("mm: isolate mmap internal logic to >mm/vma.c"), moving the remainder of memory mapping implementation details >logic into mm/vma.c allowing the bulk of the mapping logic to be unit >tested. > >It is highly useful to do so, as this means we can both fundamentally test >this core logic, and introduce regression tests to ensure any issues >previously resolved do not recur. > >Vitally, this includes the do_brk_flags() function, meaning we have both >core means of userland mapping memory now testable. > >Performance testing was performed after this change given the brk() system >call's sensitivity to change, and no performance regression was observed. May I ask what performance test is done? -- Wei Yang Help you, Help me