[SSI] openssi/kernel/include/cluster/ssi/ipc unixnm.h,1.11,1.12

Update of /cvsroot/ssic-linux/openssi/kernel/include/cluster/ssi/ipc
In directory fdv4jf1.ch3.sourceforge.com:/tmp/cvs-serv14118/include/cluster/ssi/ipc

Modified Files:
      Tag: OPENSSI-FC
	unixnm.h 
Log Message:
CFS:
- Allocate file_lock structure from stack in cfs_proc_set/getlock_0(), cfs_rb_dolocks().
- Fix possible busy spin forever in cfs_rb_dolocks(); need error handling.
- Optimize away early malloc in svrtok_lookup(). (#ifdef RCU_CFSTOK_TABLE)

IPC:
- Regression:
  - Partially initialized rmtunix_socket_info structure. (#ifdef RMTUNIX_SOCK_INFO_CACHE)

VPROC:
- Regression:
  - pvpop_reclaim_child() livelock in __ptrace_unlink path. (#ifdef VPROC_RW_LOCK)

 cluster/ssi/cfs/cfs_ipcshm.c     |    4 -
 cluster/ssi/cfs/cfsproc.c        |   90 +++++++++++++++++----------------------
 cluster/ssi/cfs/svrcfs.c         |   24 +++-------
 cluster/ssi/ipc/rmtunix.c        |    8 +--
 cluster/ssi/vproc/dvp_pvpops.c   |   10 ++--
 include/cluster/ssi/ipc/unixnm.h |    9 ++-
 include/cluster/ssi/unix.h       |    6 +-
 7 files changed, 69 insertions(+), 82 deletions(-)


Index: unixnm.h
===================================================================
RCS file: /cvsroot/ssic-linux/openssi/kernel/include/cluster/ssi/ipc/unixnm.h,v
retrieving revision 1.11
retrieving revision 1.12
diff -u -d -r1.11 -r1.12
--- unixnm.h	3 Feb 2009 06:18:13 -0000	1.11
+++ unixnm.h	7 Feb 2009 04:19:43 -0000	1.12
@@ -52,6 +52,7 @@
 #ifdef IPC_STALE_RMTUNIX_CACHE_FIX
 	int			rsk_cached;
 	atomic_t		rsk_refcnt;
+	SPIN_LOCK_T		rsk_spinlock;
 #endif
 #ifdef RCU_RMTUNIX_CACHE
 	struct rcu_head		rhead;
@@ -176,14 +177,14 @@
 	list_for_each_entry_rcu(info, &rmtunix_cache_list, list) {
 		if (info->sk == s) {
 #ifdef IPC_STALE_RMTUNIX_CACHE_FIX
-			spin_lock(&s->sk_lock.slock);
+			UNLOCK_SPIN_LOCK(&info->rsk_spinlock);
 			if (!info->rsk_cached) {
-				spin_unlock(&s->sk_lock.slock);
+				UNLOCK_SPIN_LOCK(&info->rsk_spinlock);
 				break;
 			}
 			/* rmtunix_decache_info() is our only caller */
 			info->rsk_cached = 0;
-			spin_unlock(&s->sk_lock.slock);
+			UNLOCK_SPIN_LOCK(&info->rsk_spinlock);
 #endif
 			rcu_read_unlock();
 			return info;
@@ -277,6 +278,7 @@
 
 #ifdef RMTUNIX_SOCK_INFO_CACHE
 	info = kmem_cache_alloc(rmtunix_socket_info_cachep, SLAB_USER);
+	memset(info, 0, sizeof(*info));
 #else
 	info = kzmalloc(sizeof(*info), GFP_USER);
 #endif
@@ -285,6 +287,7 @@
 
 #ifdef IPC_STALE_RMTUNIX_CACHE_FIX
 	atomic_set(&info->rsk_refcnt, 1);
+	INIT_SPIN_LOCK(&info->rsk_spinlock);
 #endif
 #ifdef RCU_RMTUNIX_CACHE
 	INIT_RCU_HEAD(&info->rhead);


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