On Tue, Dec 03, 2019 at 08:56:50PM +0800, Tiezhu Yang wrote: > There exists many similar and duplicate codes to check "." and "..", > so introduce is_dot_dotdot helper to make the code more clean. > > Signed-off-by: Tiezhu Yang <yangtiezhu@xxxxxxxxxxx> > --- > > v2: > - use the better performance implementation of is_dot_dotdot > - make it static inline and move it to include/linux/fs.h Ugh, not more crap in fs.h. $ ls -l --sort=size include/linux |head -rw-r--r-- 1 willy willy 154148 Nov 29 22:35 netdevice.h -rw-r--r-- 1 willy willy 130488 Nov 29 22:35 skbuff.h -rw-r--r-- 1 willy willy 123540 Nov 29 22:35 pci_ids.h -rw-r--r-- 1 willy willy 118991 Nov 29 22:35 fs.h I think this probably fits well in namei.h. And I think it works better with bare 'name' and 'len' arguments, rather than taking a qstr. And, as I asked twice in the last round of review, did you benchmark this change?