linux.git/drivers/block/drbd/drbd_req.h, branch v2.6.37

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

drbd: factored drbd_req_make_private_bio() out of drbd_req_new()

2010-10-14T12:37:33+00:00

Preparing tl_thaw_dio()

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

drbd: factored tl_restart() out of tl_clear().

2010-10-14T12:35:58+00:00

If IO was frozen for a temporal network outage, resend the
content of the transfer-log into the newly established connection.

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

drbd: mod_req has now a return value

2010-10-14T12:26:45+00:00

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

drbd: Track all IO requests on the TL, not writes only

2010-10-14T12:25:20+00:00

With that the drbd_fail_pending_reads() function becomes obsolete.

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

drbd: fix hang on local read errors while disconnected

2010-06-01T09:12:27+00:00

"canceled" w_read_retry_remote never completed, if they have been
canceled after drbd_disconnect connection teardown cleanup has already
run (or we are currently not connected anyways).

Fixed by not queueing a remote retry if we already know it won't work
(pdsk not uptodate), and cleanup ourselves on "cancel", in case we hit a
race with drbd_disconnect.

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

tree-wide: Assorted spelling fixes

2010-02-09T10:13:56+00:00

In particular, several occurances of funny versions of 'success',
'unknown', 'therefore', 'acknowledge', 'argument', 'achieve', 'address',
'beginning', 'desirable', 'separate' and 'necessary' are fixed.

Signed-off-by: Daniel Mack 
Cc: Joe Perches 
Cc: Junio C Hamano 
Signed-off-by: Jiri Kosina

dropping unneeded include autoconf.h

2009-10-01T19:17:54+00:00

It is force-included on the gcc command line since at least 2.6.15.
Explicit include lines seem to break compilation now in certain configurations.

Signed-off-by: Lars Ellenberg 
Signed-off-by: Kamalesh Babulal 
Acked-by: Sam Ravnborg