On Monday 28 January 2008 13:56:05 Alan Cox wrote: > > > No specific spec, just general quality of implementation. > > > > I completely agree. If one thread writes A and another writes B then the > > kernel should record either A or B, not ((A & 0xffffffff00000000) | (B & > > 0xffffffff)) > > Agree entirely: the spec doesn't allow for random scribbling in the wrong > place. It doesn't cover which goes first or who "wins" the race but > provides pwrite/pread for that situation. Writing somewhere unrelated is > definitely not to spec Actually it would probably -- i guess it's undefined and in undefined country such things can happen. Also to be fair I think it's only a problem for the 4GB wrapping case which is presumably rare (otherwise we would have heard about it) Also worse really fixing it would be a major change to the VFS because of the way ->read/write are defined :/ -Andi - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
