android_kernel_motorola_sm6225/fs/gfs2/locking/dlm
Steven Whitehouse 1bdad60633 [GFS2] Remove remote lock dropping code
There are several reasons why this is undesirable:

 1. It never happens during normal operation anyway
 2. If it does happen it causes performance to be very, very poor
 3. It isn't likely to solve the original problem (memory shortage
    on remote DLM node) it was supposed to solve
 4. It uses a bunch of arbitrary constants which are unlikely to be
    correct for any particular situation and for which the tuning seems
    to be a black art.
 5. In an N node cluster, only 1/N of the dropped locked will actually
    contribute to solving the problem on average.

So all in all we are better off without it. This also makes merging
the lock_dlm module into GFS2 a bit easier.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2008-06-27 09:39:44 +01:00
..
lock.c [GFS2] Fix ordering bug in lock_dlm 2008-06-27 09:39:25 +01:00
lock_dlm.h [GFS2] Remove remote lock dropping code 2008-06-27 09:39:44 +01:00
main.c dlm: move plock code from gfs2 2008-04-21 11:22:28 -05:00
Makefile dlm: move plock code from gfs2 2008-04-21 11:22:28 -05:00
mount.c [GFS2] Remove remote lock dropping code 2008-06-27 09:39:44 +01:00
sysfs.c [GFS2] Remove remote lock dropping code 2008-06-27 09:39:44 +01:00
thread.c [GFS2] Remove remote lock dropping code 2008-06-27 09:39:44 +01:00