search for: lvb

The Lock Value Block (LVB) of a DLM lock can be lost when nodes die and the DLM cannot reconstruct its state. Clients of the DLM need to know this. ocfs2's internal DLM, o2dlm, explicitly zeroes out the LVB when it loses track of the state. This is not a standard behavior, but ocfs2 has always relied on it. Thus, an...

...2-tools-devel/2009-June/001891.html Joel Becker Wrote: > On Sat, Jun 27, 2009 at 03:46:04AM +0800, Coly Li wrote: >> Joel Becker Wrote: >>> On Sat, Jun 27, 2009 at 03:00:05AM +0800, Coly Li wrote: >> [snip] >>>> My original purpose is to find where to initiate a lvb with 64bytes, but from >>>> mount.ocfs2 code, I don't find anywhere to create a dlm lockspace (before create >>>> a lock) so far. >>> I'm not sure why you need an LVB in mount.ocfs2, let alone a dlm >>> lockspace. >>> >> Hi Joel, &gt...

Implemented the suggestions. Also, moved the ocfs2_orphan_scan_init() to the end of ocfs2_fill_super() instead of calling it earlier in ocfs2_initialize_super(). Sunil

Hi Joel/Srini, Here are 2 patches for orphan lock in local mode. patch 1: In local mode, we don't need lvb, so don't init it. patch 2: In local mode, orphan lock and unlock don't need to go to dlm part. Regards, Tao

...lue.c index e15fc7d..ed234c8 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -248,6 +248,10 @@ static struct ocfs2_lock_res_ops ocfs2_nfs_sync_lops = { .flags = 0, }; +static struct ocfs2_lock_res_ops ocfs2_orphan_scan_lops = { + .flags = LOCK_TYPE_REQUIRES_REFRESH|LOCK_TYPE_USES_LVB, +}; + static struct ocfs2_lock_res_ops ocfs2_dentry_lops = { .get_osb = ocfs2_get_dentry_osb, .post_unlock = ocfs2_dentry_post_unlock, @@ -637,6 +641,15 @@ static void ocfs2_nfs_sync_lock_res_init(struct ocfs2_lock_res *res, &ocfs2_nfs_sync_lops, osb); } +static void ocfs2_orph...

Resending after implementing review comments.

Resending after implementing review comments.

Next two patches are backport of orphan scan timer patches to ocfs2-1.4

This patch adds jbd_lock_bh_state() and jbd_unlock_bh_state() around accessses to jh->b_committed_data. Fixes oss bugzilla#1131 http://oss.oracle.com/bugzilla/show_bug.cgi?id=1131 Signed-off-by: Sunil Mushran <sunil.mushran at oracle.com> --- fs/ocfs2/suballoc.c | 28 ++++++++++++++++++++++++---- 1 files changed, 24 insertions(+), 4 deletions(-) diff --git a/fs/ocfs2/suballoc.c

Resending after adding another patch to display delayed orphan scan statistics.

All, Please review the patches backported to 1.4 from mainline. Sunil

Wether the dlm_lock needs to access lvb or not depends on dlm_lock_resource it belongs to. So a new parameter "struct dlm_lock_resource *res" is added to dlm_new_lock() so that we can know if we need to allocate lvb for the dlm_lock. And we have to make the lockres availale for calling dlm_new_lock(). Signed-off-by: Wengang Wa...

Srini, Ok, you can go ahead and cook up the background orphan cleaner. Now, we can do this in a workqueue, a thread, or a timer. I don't see why a timer doesn't work. When the timer fires, you do this: 1. Take EX on a new orphan_scan lock. 2. check the LVB for the last scan time. If it's less than the scan timeout, reset the timer for (timeout - last scan), drop the EX, and exit. 3. Call ocfs2_queue_recovery_completion() for all slots with NULL, NULL, NULL on the non-orphan-dir arguments. This sets up the orphan recovery. 4. Update...

OS: Fedora Core release 4 (Stentz) KERNEL: Linux rack1.ape 2.6.17-1.2142_FC4smp #1 SMP Tue Jul 11 22:57:02 EDT 2006 i686 i686 i386 GNU/Linux CLUSTER: 11 Linux kernels, mixed environment FC4,FC5,FC6 SAN: FC Infortrend storage, QLogic16 port FC switch, FC adapter LSI FC929X (21224,1):ocfs2_truncate_file:242 ERROR: bug expression: le64_to_cpu(fe->i_size) != i_size_read(inode)

Patch 5 has been respun with the recommended change... remove the ex argument in ocfs2_orphan_scan_lock() and ocfs2_orphan_scan_unlock(). Sunil

Hi list, Here is a bug report on novell bugzilla (https://bugzilla.novell.com/show_bug.cgi?id=456280) that mount point inside node A can be removed from node B. The problem is, node B does not know an empty dir is be using as mount point on another node. Is there any solution to return -EBUSY when a dir is be using as mount point on another node ? Thanks in advance. -- Coly Li SuSE Labs

llseek requires ocfs2 inode lock for updating the file size in SEEK_END. because the file size maybe update on another node. if it not . after call llseek in SEEK_END. the position is old. this bug can be reproduce the following scenario: at first ,we dd a test fileA,the file size is 10k. on NodeA: --------- 1) open the test fileA, lseek the end of file. and print the position. 2) close the test

hello, i am a newbie to this list and i don't know if this has been posted before (if so, plzz accept my apologies) i just noticed a nice mini-howto on ext2-ext3 conversion at http://www.symonds.net/~rajesh/howto/ext3/index.html i think that maybe a link can be added to this after the download section... cheers Sayamindu *********************************************************************

The following series of patches comprises the bulk of our outstanding changes for Ocfs2. Aside from the usual set of cleanups and fixes that were inappropriate for 2.6.25, there are a few highlights: The '/sys/o2cb' directory has been moved to '/sys/fs/o2cb'. The new location meshes better with modern sysfs layout. A symbolic link has been placed in the old location so as to

Found 15 patches (out of 162) that appeared relevant to ocfs2 1.4. Please review. Sunil