linux.git/fs/dlm/dir.c, branch v4.8

dlm: use INFO for recovery messages

2014-02-14T17:54:44+00:00

The log messages relating to the progress of recovery
are minimal and very often useful.  Change these to
the KERN_INFO level so they are always available.

Signed-off-by: David Teigland

dlm: use rsbtbl as resource directory

2012-07-16T19:16:19+00:00

Remove the dir hash table (dirtbl), and use
the rsb hash table (rsbtbl) as the resource
directory.  It has always been an unnecessary
duplication of information.

This improves efficiency by using a single rsbtbl
lookup in many cases where both rsbtbl and dirtbl
lookups were needed previously.

This eliminates the need to handle cases of rsbtbl
and dirtbl being out of sync.

In many cases there will be memory savings because
the dir hash table no longer exists.

Signed-off-by: David Teigland

dlm: fix slow rsb search in dir recovery

2012-03-08T20:46:30+00:00

The function used to find an rsb during directory
recovery was searching the single linear list of
rsb's.  This wasted a lot of time compared to
using the standard hash table to find the rsb.

Signed-off-by: David Teigland

dlm: move recovery barrier calls

2012-01-04T14:53:27+00:00

Put all the calls to recovery barriers in the same function
to clarify where they each happen.  Should not change any behavior.
Also modify some recovery debug lines to make them consistent.

Signed-off-by: David Teigland

dlm: always use GFP_NOFS

2009-11-30T22:34:43+00:00

Replace all GFP_KERNEL and ls_allocation with GFP_NOFS.
ls_allocation would be GFP_KERNEL for userland lockspaces
and GFP_NOFS for file system lockspaces.

It was discovered that any lockspaces on the system can
affect all others by triggering memory reclaim in the
file system which could in turn call back into the dlm
to acquire locks, deadlocking dlm threads that were
shared by all lockspaces, like dlm_recv.

Signed-off-by: David Teigland

dlm: use more NOFS allocation

2009-05-15T16:24:59+00:00

Change some GFP_KERNEL allocations to use either GFP_NOFS or
ls_allocation (when available) which the fs sets to GFP_NOFS.
The point is to prevent allocations from going back into the
cluster fs in places where that might lead to deadlock.

Signed-off-by: David Teigland

dlm: Change rwlock which is only used in write mode to a spinlock

2009-01-28T18:55:55+00:00

The ls_dirtbl[].lock was an rwlock, but since it was only used in write
mode a spinlock will suffice.

Signed-off-by: Steven Whitehouse 
Signed-off-by: David Teigland

dlm: trivial annotation of be16 value

2008-12-23T16:15:51+00:00

fs/dlm/dir.c:419:14: warning: incorrect type in assignment (different base types)
fs/dlm/dir.c:419:14:    expected unsigned short [unsigned] [addressable] [assigned] [usertype] be_namelen
fs/dlm/dir.c:419:14:    got restricted __be16 [usertype] 

Signed-off-by: Harvey Harrison 
Signed-off-by: David Teigland

dlm: fix dlm_dir_lookup() handling of too long names

2008-02-04T07:30:19+00:00

... those can happen and BUG() from DLM_ASSERT() in allocate_direntry() is
not a good way to handle them.

Signed-off-by: Al Viro 
Signed-off-by: David Teigland

dlm: validate data in dlm_recover_directory()

2008-02-04T07:24:52+00:00

Signed-off-by: Al Viro 
Signed-off-by: David Teigland