On Wed, Dec 3, 2014 at 1:42 AM, Mel Gorman <mgor...@suse.de> wrote: > Partial page discard requests are ignored and the documentation on why this > is correct behaviour sucks. A readahead patch looked like a "regression" to > a random IO storage benchmark because posix_fadvise() was used incorrectly > to force IO requests to go to disk. In reality, the benchmark sucked but > it was non-obvious why. Patch 1 updates the kernel comment in case someone > "fixes" either readahead or fadvise for inappropriate reasons. Patch 2 > updates the relevant man page on the rough off chance that application > developers do not read kernel source comments.
It feels like that last sentence should have made LWN quote of the week :-/. -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
