On Fri, 09 Mar 2007 00:37:49 +0900 (JST), Atsushi Nemoto <anemo@xxxxxxxxxxxxx> wrote: > > fadvise64(), readahead(), sync_file_range() have long long argument(s) > > but glibc passes it by hi/lo pair without padding, on both O32 and > > N32. > > > > Also wire up fadvise64_64() and fixup confusion of it with > > fadvise64(). > > If best performance was preferred, the O32 readahead and > sync_file_range should not changed and libc should provide MIPS > specific syscall wrappers, like pread64. The N32 can also use > standard sys_readahead(), etc. and libc should provide wrappers, too. > > Anyway fadvice64() needs to be fixed. > > Any comments from libc side? Original patch is here: > http://www.linux-mips.org/archives/linux-mips/2007-03/msg00092.html Any comments? I think this patch has less maintainance cost but a little bit slow. These syscalls can be a little bit faster, but needs more works on glibc (and uClibc, etc.) side. Anyway we should take some action while current implementation is broken (except N64). Which is a way to go? --- Atsushi Nemoto
