| commit | 69b62d01ec44fe0d505d89917392347732135a4d | |
| author | Jens Axboe <jens.axboe@oracle.com> | |
| Mon, 17 May 2010 10:51:03 +0000 (17 12:51 +0200) | ||
| committer | Jens Axboe <jens.axboe@oracle.com> | |
| Mon, 17 May 2010 10:51:03 +0000 (17 12:51 +0200) | ||
| tree | da40561f3d87ee1073e92ca925ed3ed36708a1d7 | treesnapshot (tar.gz zip) |
| parent | 2395e463fefd4aa8b784787e926e9b84e216d14f | commitdiff |
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>
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>
| fs/fs-writeback.c | diffblobblamehistory |