Files
linux/drivers/block
Philipp Reisner f91ab6282d drbd: Implemented side-stepping in drbd_res_begin_io()
Before:
  drbd_rs_begin_io() locked app-IO out of an RS extent, and
  waited then until all previous app-IO in that area finished.
  (But not only until the disk-IO was finished but until the
   barrier/epoch ack came in for that == round trip time latency ++)

After:
  As soon as a new app-IO waits wants to start new IO on that
  RS extent, drbd_rs_begin_io() steps aside (clearing the
  BME_NO_WRITES flag again). It retries after 100ms.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-03-10 11:34:56 +01:00
..
2010-11-16 13:33:23 -08:00
2010-02-22 13:44:45 +01:00
2011-03-10 08:52:07 +01:00
2011-03-10 08:52:07 +01:00
…
2011-01-05 16:29:17 -05:00
2011-02-11 16:12:20 -08:00
2009-03-26 21:15:27 +01:00
2011-03-09 19:54:28 +01:00
2008-10-21 07:48:11 -04:00