litmus-rt.git/drivers/block/drbd/drbd_req.h, branch wip-tracepoints

drbd: fix warning

2011-05-24T08:38:33+00:00

In file included from drivers/block/drbd/drbd_main.c:54:                        drivers/block/drbd/drbd_int.h:1190: warning: parameter has incomplete type

Forward declarations of enums do not work.

Fix it unpleasantly by moving the prototype.

Cc: Jens Axboe 
Signed-off-by: Lars Ellenberg 
Signed-off-by: Philipp Reisner 
Signed-off-by: Andrew Morton

drbd: Fix spelling

2011-05-24T08:21:29+00:00

Found these with the help of ispell -l.

Signed-off-by: Bart Van Assche 
Signed-off-by: Lars Ellenberg 
Signed-off-by: Philipp Reisner

drbd: Implemented real timeout checking for request processing time

2011-03-10T10:48:16+00:00

Signed-off-by: Philipp Reisner 
Signed-off-by: Lars Ellenberg

drbd: Ensure that an epoch contains only requests of one kind

2011-03-10T10:45:42+00:00

The assert in drbd_req.c:755 forces us to have only requests of
one kind in an epoch. The two kinds we distinguish here are:
local-only or mirrored.

Signed-off-by: Philipp Reisner 
Signed-off-by: Lars Ellenberg

drbd: Begin to account BIO processing time before inc_ap_bio()

2011-03-10T10:34:57+00:00

Since inc_ap_bio() might sleep already

Signed-off-by: Philipp Reisner 
Signed-off-by: Lars Ellenberg

drbd: New packet for Ahead/Behind mode: P_OUT_OF_SYNC

2011-03-10T10:34:48+00:00

Signed-off-by: Philipp Reisner 
Signed-off-by: Lars Ellenberg

drbd: Track the numbers of sectors in flight

2011-03-10T10:34:43+00:00

Signed-off-by: Philipp Reisner 
Signed-off-by: Lars Ellenberg

drbd: fix for spin_lock_irqsave in endio callback

2010-11-27T18:50:43+00:00

In commit 9b7f76dc37919ea36caa9680a3f765e5b19b25fb,
 Author: Lars Ellenberg 
 Date:   Wed Aug 11 23:40:24 2010 +0200

    drbd: new configuration parameter c-min-rate

a bad chunk slipped through, which is now reverted as well,
restoring the correct irqsave for the endio callback.

This patch also add comments at both req_mod()
and in the endio callback so it should not happen again.

Signed-off-by: Philipp Reisner 
Signed-off-by: Lars Ellenberg

drbd: Disable activity log updates when the whole device is out of sync

2010-10-14T16:38:26+00:00

When the complete device is marked as out of sync, we can disable
updates of the on disk AL. Currently AL updates are only disabled
if one uses the "invalidate-remote" command on an unconnected,
primary device, or when at attach time all bits in the bitmap are
set.

As of now, AL updated do not get disabled when a all bits becomes
set due to application writes to an unconnected DRBD device.
While this is a missing feature, it is not considered important,
and might get added later.

BTW, after initializing a "one legged" DRBD device
drbdadm create-md resX
drbdadm -- --force primary resX
AL updates also get disabled, until the first connect.

Signed-off-by: Philipp Reisner 
Signed-off-by: Lars Ellenberg

drbd: Finished the "on-no-data-accessible suspend-io;" functionality

2010-10-14T12:52:53+00:00

When no data is accessible (no connection to the peer, nor a local disk)
allow the user to select to freeze all IO operations instead of getting
IO errors.

Signed-off-by: Philipp Reisner 
Signed-off-by: Lars Ellenberg