linux-toradex.git/fs/ocfs2/dlm, branch v3.2.9

Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2

2011-12-01T22:55:34+00:00

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (31 commits)
  ocfs2: avoid unaligned access to dqc_bitmap
  ocfs2: Use filemap_write_and_wait() instead of write_inode_now()
  ocfs2: honor O_(D)SYNC flag in fallocate
  ocfs2: Add a missing journal credit in ocfs2_link_credits() -v2
  ocfs2: send correct UUID to cleancache initialization
  ocfs2: Commit transactions in error cases -v2
  ocfs2: make direntry invalid when deleting it
  fs/ocfs2/dlm/dlmlock.c: free kmem_cache_zalloc'd data using kmem_cache_free
  ocfs2: Avoid livelock in ocfs2_readpage()
  ocfs2: serialize unaligned aio
  ocfs2: Implement llseek()
  ocfs2: Fix ocfs2_page_mkwrite()
  ocfs2: Add comment about orphan scanning
  ocfs2: Clean up messages in the fs
  ocfs2/cluster: Cluster up now includes network connections too
  ocfs2/cluster: Add new function o2net_fill_node_map()
  ocfs2/cluster: Fix output in file elapsed_time_in_ms
  ocfs2/dlm: dlmlock_remote() needs to account for remastery
  ocfs2/dlm: Take inflight reference count for remotely mastered resources too
  ocfs2/dlm: Cleanup dlm_wait_for_node_death() and dlm_wait_for_node_recovery()
  ...

fs/ocfs2/dlm/dlmlock.c: free kmem_cache_zalloc'd data using kmem_cache_free

2011-11-17T09:46:46+00:00

Memory allocated using kmem_cache_zalloc should be freed using
kmem_cache_free, not kfree.

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// 
@@
expression x,e,e1,e2;
@@

x = kmem_cache_zalloc(e1,e2)
... when != x = e
?-kfree(x)
+kmem_cache_free(e1,x)
// 

Signed-off-by: Julia Lawall 
Signed-off-by: Joel Becker

fs: add export.h to files using EXPORT_SYMBOL/THIS_MODULE macros

2011-10-31T23:30:31+00:00

These files were getting  via an implicit include
path, but we want to crush those out of existence since they cost
time during compiles of processing thousands of lines of headers
for no reason.  Give them the lightweight header that just contains
the EXPORT_SYMBOL infrastructure.

Signed-off-by: Paul Gortmaker

ocfs2/cluster: Cluster up now includes network connections too

2011-07-24T17:33:54+00:00

The cluster up check only checks to see if the node is heartbeating or not.
If yes it continues assuming that the node is connected to all the nodes. But
if that is not the case, the cluster join aborts with a stack of errors that
are not easy to comprehend.

This patch adds the network connect check upfront and prints the nodes that
the node is not yet connected to, before aborting.

Signed-off-by: Sunil Mushran

ocfs2/dlm: dlmlock_remote() needs to account for remastery

2011-07-24T17:30:54+00:00

In dlmlock_remote(), we wait for the resource to stop being active before
setting the inprogress flag. Active includes recovery, migration, etc.

The problem here is that if the resource was being recovered or migrated, the
new owner could very well be that node itself (and thus not a remote node).
This problem was observed in Oracle bug#12583620. The error messages observed
were as follows:

dlm_send_remote_lock_request:337 ERROR: Error -40 (ELOOP) when sending message 503 (key 0xd6d8c7) to node 2
dlmlock_remote:271 ERROR: dlm status = DLM_BADARGS
dlmlock:751 ERROR: dlm status = DLM_BADARGS

Signed-off-by: Sunil Mushran

ocfs2/dlm: Take inflight reference count for remotely mastered resources too

2011-07-24T17:29:54+00:00

The inflight reference count, in the lock resource, is taken to pin the resource
in memory. We take it when a new resource is created and release it after a
lock is attached to it. We do this to prevent the resource from getting purged
prematurely.

Earlier this reference count was being taken for locally mastered resources
only. This patch extends the same functionality for remotely mastered ones.

We are doing this because the same premature purging could occur for remotely
mastered resources if the remote node were to die before completion of the
create lock.

Fix for Oracle bug#12405575.

Signed-off-by: Sunil Mushran

ocfs2/dlm: Cleanup dlm_wait_for_node_death() and dlm_wait_for_node_recovery()

2011-07-24T17:28:54+00:00

dlm_wait_for_node_death() and dlm_wait_for_node_recovery() needed a facelift.

Signed-off-by: Sunil Mushran

ocfs2/dlm: Trace insert/remove of resource to/from hash

2011-07-24T17:27:54+00:00

Add mlog to trace adding and removing the resource from/to the hash table.

Signed-off-by: Sunil Mushran

ocfs2/dlm: Clean up refmap helpers

2011-07-24T17:26:54+00:00

Patch cleans up helpers that set/clear refmap bits and grab/drop inflight lock
ref counts.

Signed-off-by: Sunil Mushran

ocfs2/dlm: Cleanup up dlm_finish_local_lockres_recovery()

2011-07-24T17:25:54+00:00

dlm_finish_local_lockres_recovery() needed a facelift.

Signed-off-by: Sunil Mushran