linux/fs/dlm/lock.c, branch v3.1.2

dlm: use workqueue for callbacks

2011-07-15T17:30:43Z

Instead of creating our own kthread (dlm_astd) to deliver callbacks for all lockspaces, use a per-lockspace workqueue to deliver the callbacks. This eliminates complications and slowdowns from many lockspaces sharing the same thread. Signed-off-by: David Teigland

dlm: remove deadlock debug print

2011-07-14T17:31:49Z

gfs2 recently began using this feature heavily, creating more debug output than we want to see. Signed-off-by: David Teigland

dlm: improve rsb searches

2011-07-12T21:02:09Z

By pre-allocating rsb structs before searching the hash table, they can be inserted immediately. This avoids always having to repeat the search when adding the struct to hash list. This also adds space to the rsb struct for a max resource name, so an rsb allocation can be used by any request. The constant size also allows us to finally use a slab for the rsb structs. Signed-off-by: David Teigland

dlm: keep lkbs in idr

2011-07-11T13:43:45Z

This is simpler and quicker than the hash table, and avoids needing to search the hash list for every new lkid to check if it's used. Signed-off-by: David Teigland

dlm: fix kmalloc args

2011-07-11T13:40:53Z

The gfp and size args were switched. Signed-off-by: David Teigland

dlm: don't do pointless NULL check, use kzalloc and fix order of arguments

2011-07-11T13:39:42Z

In fs/dlm/lock.c in the dlm_scan_waiters() function there are 3 small issues: 1) There's no need to test the return value of the allocation and do a memset if is succeedes. Just use kzalloc() to obtain zeroed memory. 2) Since kfree() handles NULL pointers gracefully, the test of 'warned' against NULL before the kfree() after the loop is completely pointless. Remove it. 3) The arguments to kmalloc() (now kzalloc()) were swapped. Thanks to Dr. David Alan Gilbert for pointing this out. Signed-off-by: Jesper Juhl Signed-off-by: David Teigland

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm

2011-05-24T22:04:00Z

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm: dlm: make plock operation killable dlm: remove shared message stub for recovery dlm: delayed reply message warning dlm: Remove superfluous call to recalc_sigpending()

dlm: remove shared message stub for recovery

2011-04-05T15:54:47Z

kmalloc a stub message struct during recovery instead of sharing the struct in the lockspace. This leaves the lockspace stub_ms only for faking downconvert replies, where it is never modified and sharing is not a problem. Also improve the debug messages in the same recovery function. Signed-off-by: David Teigland

dlm: delayed reply message warning

2011-04-01T19:19:06Z

Add an option (disabled by default) to print a warning message when a lock has been waiting a configurable amount of time for a reply message from another node. This is mainly for debugging. Signed-off-by: David Teigland

Fix common misspellings

2011-03-31T14:26:23Z

Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi