search for: dlm

These patches convert the mle list to a hash. The same patches apply on ocfs2 1.4 too. Currently, we use the same number of hash pages for mles and lockres'. This will be addressed in a future patch that will make both of them configurable. Sunil

The changes from the last drop are: 1. Patch 11 removes struct dlm_lock_name. 2. Patch 12 is an unrelated bugfix. Actually is related to a bugfix that we are retracting in mainline currently. The patch may need more testing. While I did hit the condition in my testing, Marcos hasn't. I am sending it because it can be queued for 2.6.30. Give us more time to te...

We should check dlm->dlm_state under dlm->spinlock though maybe in this case it doesn't hurt. Signed-off-by: Wengang Wang <wen.gang.wang at oracle.com> --- fs/ocfs2/dlm/dlmdomain.c | 13 ++++++------- 1 files changed, 6 insertions(+), 7 deletions(-) diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2...

Please review the list of patches being applied to the ocfs2 1.4 tree. All patches list the mainline commit hash. Thanks Sunil

#backporting the 3 patches at http://kernel.us.oracle.com/~smushran/srini/ to 1.2. enlarge hash_table capacity to fasten hash_table lookups. Signed-off-by: Wengang wang <wen.gang.wang at oracle.com> -- diff -up ./svnocfs2-1.2/fs/ocfs2/dlm/dlmdebug.c.orig ./svnocfs2-1.2/fs/ocfs2/dlm/dlmdebug.c --- ./svnocfs2-1.2/fs/ocfs2/dlm/dlmdebug.c.orig 2009-04-22 11:00:37.000000000 +0800 +++ ./svnocfs2-1.2/fs/ocfs2/dlm/dlmdebug.c 2009-04-22 11:08:27.000000000 +0800 @@ -547,7 +547,7 @@ void dlm_dump_lock_resources(struct dlm_ spin_lock(&d...

Currently the process of dlm join contains 2 steps: query join and assert join. After query join, the joined node will set its joining_node. So if the joining node happens to panic before the 2nd step, the joined node will fail to clear its joining_node flag because that node isn't in the domain map. It at least cause 2 pr...

use multiple pages for the hash table. mainline git commit: 03d864c02c3ea803b1718940ac6953a257182d7a Authored-by: Daniel Phillips <phillips at google.com> Signed-off-by: Wengang Wang <wen.gang.wang at oracle.com> -- Index: ocfs2-1.2/fs/ocfs2/dlm/dlmdomain.c =================================================================== --- ocfs2-1.2/fs/ocfs2/dlm/dlmdomain.c (revision 1) +++ ocfs2-1.2/fs/ocfs2/dlm/dlmdomain.c (revision 2) @@ -79,6 +79,33 @@ static inline void byte_copymap(u8 dmap[ byte_set_bit(nn, dmap); } +static void dlm_free_...

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()....

There are two problems in dlm_run_purgelist 1. If a lockres is found to be in use, dlm_run_purgelist keeps trying to purge the same lockres instead of trying the next lockres. 2. When a lockres is found unused, dlm_run_purgelist releases lockres spinlock before setting DLM_LOCK_RES_DROPPING_REF and calls dlm_purge_lockres. sp...

After some parallel mount/umount test on ocfs2, we got this: slab error in kmem_cache_destroy(): cache `o2dlm_mle': Can't free all objects. Then we found a memleak situation in dlm_add_migration_mle(). When a mle found, it will be removed from dlm->hlist. If there is no pointer to it at that moment, the mle will become an ?orphan mle? that no process can find and release. Signed-off-by: Xuejiu...

...:28 nodo1 openais[8462]: [TOTEM] Receive multicast socket recv buffer size (262142 bytes). Aug 18 13:12:28 nodo1 openais[8462]: [TOTEM] Transmit multicast socket send buffer size (262142 bytes). Aug 18 13:12:28 nodo1 openais[8462]: [TOTEM] entering GATHER state from 2. Aug 18 13:12:31 nodo1 cluster-dlm: update_cluster: Processing membership 235508#012 Aug 18 13:12:31 nodo1 cluster-dlm: dlm_process_node: Skipped active node 1778493632 'nodo1': born-on=235504, last-seen=235508, this-event=235508, last-event=235504#012 Aug 18 13:12:31 nodo1 cluster-dlm: dlm_process_node: Skipped inactive nod...

Mainline commit d4f7e650e55af6b235871126f747da88600e8040 attempts to delay the dlm_thread from sending the drop ref message if the lockres is being migrated. The problem is that we make the dlm_thread wait for the migration to complete. This causes a deadlock as dlm_thread also participates in the lockres migration process. A better fix for the original oss bugzilla#1012 is in t...

...er_item); + list_for_each_entry_safe(nmh, n, list, nh_unregister_item) { mlog(ML_TCP, "unregistering handler func %p type %u key %08x\n", nmh->nh_func, nmh->nh_msg_type, nmh->nh_key); rb_erase(&nmh->nh_node, &o2net_handler_tree); Index: linux-2.6/fs/ocfs2/dlm/dlmmaster.c =================================================================== --- linux-2.6.orig/fs/ocfs2/dlm/dlmmaster.c 2007-04-30 11:33:04.000000000 +0200 +++ linux-2.6/fs/ocfs2/dlm/dlmmaster.c 2007-05-17 15:00:14.000000000 +0200 @@ -192,25 +192,20 @@ static void dlm_print_one_mle(struct dlm...

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

...ic.in - --- ocfs2-1.2.5/vendor/sles9/ocfs2.spec-generic.in 2007-03-27 15:54:15.000000000 -0400 +++ ocfs2-1.2.5.devel/vendor/sles9/ocfs2.spec-generic.in 2007-04-16 13:05:25.962229912 -0400 @@ -301,9 +301,11 @@ mv "${EXTRA_MODLIB}"/ocfs2_nodemanager.k mkdir -p "${INST_MODLIB}/fs/ocfs2/dlm" mv "${EXTRA_MODLIB}"/ocfs2_dlm.ko "${INST_MODLIB}/fs/ocfs2/dlm/" mv "${EXTRA_MODLIB}"/ocfs2_dlmfs.ko "${INST_MODLIB}/fs/ocfs2/dlm/" - -mkdir -p "${INST_MODLIB}/fs/configfs" - -mv "${EXTRA_MODLIB}"/configfs.ko "${INST_MODLIB}/f...

Hi, all, As we use OCFS2, the network is not good. When the converting request message can?t send to the another node, there will be a node hangs up which will still waiting for the dlm. CAS2/logdir/var/log/syslog.1-6778-Sep 16 20:57:16 CAS2 kernel: [516366.623623] o2net: Connection to node CAS1 (num 1) at 10.172.254.1:7100 has been idle for 30.87 secs, shutting it down. CAS2/logdir/var/log/syslog.1-6779-Sep 16 20:57:16 CAS2 kernel: [516366.623631] o2net_idle_timer 1621: Local an...

o2dlm join and leave messages are more than informational as they are required is debugging locking issues. This patch changes them from KERN_INFO to KERN_NOTICE. Signed-off-by: Sunil Mushran <sunil.mushran at oracle.com> --- fs/ocfs2/dlm/dlmdomain.c | 6 +++--- 1 files changed, 3 insertions(+...

Hello, How can I see a function called "+.dlm"? > methods("+") [1] +.Date +.dlm* +.POSIXt Non-visible functions are asterisked > getAnywhere("+.dlm") Error in grep(pattern, x, ignore.case, extended, value, fixed, useBytes) : invalid regular expression '+\.dlm' Thanks in advance, Giovanni --...

Hello, I am writing a package called 'DLM' containing a vignette. The vignette contains a chunck with the function call 'library(DLM)'. This worked fine with 'R CMD check DLM', but when it comes to building the package with 'R CMD build DLM' I get the following error message: * creating vignettes ... ERROR E...

I've read fs/ocfs2/dlm/dlmcommon.h to study the structure of dlm_migratable_lockres. However, I may find a typo for the DLM_MIG_LOCKRES_MAX_LEN, the NET_MAX_PAYLOAD_BYTES should be O2NET_MAX_PAYLOAD_BYTES, I think. In comments, the sizeof(net_msg) should be sizeof(o2net_msg) by referring to fs/ocfs2/cluster/tcp.h. Signe...