[SSI] openssi/kernel/include/linux msg.h,1.4,1.5

Update of /cvsroot/ssic-linux/openssi/kernel/include/linux
In directory sfp-cvsdas-3.v30.ch3.sourceforge.com:/tmp/cvs-serv29204/kernel/include/linux

Modified Files:
      Tag: OPENSSI-FC
	msg.h 
Log Message:
IPC Messages:
- Fix msg_get_svr_node() race with msg_set_svr_node() as not all code paths hold msg_ids.sem mutex. Use msg_nodehint_lock read/write spinlock.
- Consolidate redundant code into new function msg_find_svr_node().
- Remove redundant in ssi_msgsnd(). Most of the code is from sys_msgsnd().
- Fix sys_msgsnd()
  - Unhandled ssi_msgpack() error -ENOMEM.
  - Dereferencing freed "packedsegs" object.
  - Handle cli_ripc_msgsnd() error -EAGAIN.
- Remove redundant in ssi_msgrcv(). Most of the code is from sys_msgrcv().
- Fix sys_msgctl(MSG_INFO)
  - Might populate user buffer with bogus info on RPC error -EREMOTE.
  - Did not account for remote nodes when calculating max_id.
  - Deadlock with destination node when both nodes are doing RPC.
- Move remote code paths to new functions ssi_remote_msgctl(), ssi_msgctl_info(), ssi_remote_msgrcv(), ssi_remote_msgsnd().
- sys_msgctl() handle cli_ripc_msgctl() error -EAGAIN.
- sys_msgrcv() handle cli_ripc_msgrcv() error -EAGAIN.

 cluster/ssi/ipc/ipcmsg_svr.c |    8 
 include/linux/msg.h          |    3 
 ipc/msg.c                    |  762 +++++++++++++++--------------------
 ipc/msgutil.c                |   13 
 4 files changed, 356 insertions(+), 430 deletions(-)


Index: msg.h
===================================================================
RCS file: /cvsroot/ssic-linux/openssi/kernel/include/linux/msg.h,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -d -r1.4 -r1.5
--- msg.h	20 Oct 2004 03:23:37 -0000	1.4
+++ msg.h	3 Apr 2010 19:34:43 -0000	1.5
@@ -64,6 +64,8 @@
 
 #ifdef __KERNEL__
 
+#ifdef CONFIG_SSI
+/* Dupe from ipc/msgutil.c */
 struct msg_msgseg {
 	struct msg_msgseg* next;
 	/* the next part of the message follows immediately */
@@ -71,6 +73,7 @@
 
 #define DATALEN_MSG	(PAGE_SIZE-sizeof(struct msg_msg))
 #define DATALEN_SEG	(PAGE_SIZE-sizeof(struct msg_msgseg))
+#endif /* CONFIG_SSI */
 
 /* one msg_msg structure for each message */
 struct msg_msg {


------------------------------------------------------------------------------
Download Intel® Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev