On Wed, 2006-07-26 at 09:22 -0700, Badari Pulavarty wrote: > Ulrich Drepper wrote: > > Christoph Hellwig wrote: > > > >>> My personal opinion on existing AIO is that it is not the right design. > >>> Benjamin LaHaise agree with me (if I understood him right), > >>> > >> I completely agree with that aswell. > >> > > > > I agree, too, but the current code is not the last of the line. Suparna > > has a st of patches which make the current kernel aio code work much > > better and especially make it really usable to implement POSIX AIO. > > > > In Ottawa we were talking about submitting it and Suparna will. We just > > thought about a little longer timeframe. I guess it could be > > accelerated since he mostly has the patch done. But I don't know her > > schedule. > > > > Important here is, don't base any decision on the current aio > > implementation. > > > Ulrich, > > Suparna mentioned your interest in making POSIX glibc aio work with > kernel-aio at OLS. > We thought taking a re-look at the (kernel side) work BULL did, would be > a nice starting > point. I re-based those patches to 2.6.18-rc2 and sent it to Zach Brown > for review before > sending them out to list. > > These patches does NOT make AIO any cleaner. All they do is add > functionality to support > POSIX AIO easier. These are > > [ PATCH 1/3 ] Adding signal notification for event completion > > [ PATCH 2/3 ] lio (listio) completion semantics > > [ PATCH 3/3 ] cancel_fd support
Badari, Thanks for refreshing those patches, they have been sitting here for quite some time now and collected dust. I also think Suparna's patchset for doing buffered AIO would be a real plus here. > > Suparna explained these in the following article: > > http://lwn.net/Articles/148755/ > > If you think, this is a reasonable direction/approach for the kernel and > you would take care > of glibc side of things - I can spend time on these patches, getting > them to reasonable shape > and push for inclusion. Ulrich, I you want to have a look at how those patches are put to use in libposix-aio, have a look at http://sourceforge.net/projects/paiol. It could be a starting point for glibc. Thanks, Sébastien. -- ----------------------------------------------------- Sébastien Dugué BULL/FREC:B1-247 phone: (+33) 476 29 77 70 Bullcom: 229-7770 mailto:[EMAIL PROTECTED] Linux POSIX AIO: http://www.bullopensource.org/posix http://sourceforge.net/projects/paiol ----------------------------------------------------- - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
