| commit | 69b62d01ec44fe0d505d89917392347732135a4d | [log] [tgz] |
|---|---|---|
| author | Jens Axboe <jens.axboe@oracle.com> | Mon May 17 12:51:03 2010 +0200 |
| committer | Jens Axboe <jens.axboe@oracle.com> | Mon May 17 12:51:03 2010 +0200 |
| tree | da40561f3d87ee1073e92ca925ed3ed36708a1d7 | |
| parent | 2395e463fefd4aa8b784787e926e9b84e216d14f [diff] |
writeback: disable periodic old data writeback for !dirty_writeback_centisecs Prior to 2.6.32, setting /proc/sys/vm/dirty_writeback_centisecs disabled periodic dirty writeback from kupdate. This got broken and now causes excessive sys CPU usage if set to zero, as we'll keep beating on schedule(). Cc: stable@kernel.org Reported-by: Justin Maggard <jmaggard10@gmail.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>