Messages in this thread | | | From | swhiteho@redhat ... | Subject | [GFS2] Pre-pull patch posting | Date | Wed, 18 Mar 2009 12:23:35 +0000 |
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Hi,
So as the merge window draws closer, here is the current content of the GFS2 git tree. The major item this time is patch 5 in the series. This contians by far the majority of the changes, and the majority of those changes are actually removal of code. The patch merges the lock_dlm module (not the dlm itself, but GFS2's interface to the dlm) into GFS2 itself. This means that a number of optimisations are then possible in terms of merging strucutures resulting in a considerable saving in memory.
Since that patch is so large (I'm afraid that it really doesn't make any sense to split it up) its been in the -nmw git tree for the whole period since the last merge window and has also been posted for review on cluster-devel on a number of occasions before that. We've run a number of tests on it as well in that period, so I believe that its pretty stable now. It certainly makes the code a lot cleaner and easier to follow in that area.
The remainder of the patches are mostly bug fixes, but there are one or two other interesting features, those being:
o GFS2 now supports the discard I/O requests for thin provisioning, etc o A new "demote a glock" interface is added to sysfs to help in testing GFS2 o With a new mkfs.gfs2 which writes UUIDs, the UUID is now included in uevent messages (with older filesystems which don't have UUIDs, we just don't send that information)
The GFS2 tracing patches which I posted a little while back are not included in this patch set. I think I can see what I need to do in order to avoid patching blktrace now, so my plan is to look at those patches again after this merge window, and when all the queued patches for the tracing subsystem have been merged.
As always, please let us know if you spot any issues in the patches,
Steve.
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