[SSI] openssi/kernel/fs/proc proc_cluster.c,1.13,1.14

Update of /cvsroot/ssic-linux/openssi/kernel/fs/proc
In directory fdv4jf1.ch3.sourceforge.com:/tmp/cvs-serv23689/fs/proc

Modified Files:
      Tag: OPENSSI-FC
	proc_cluster.c 
Log Message:
CFS:
- Fix possible server token table hash key race with PFS file handle data.
- Further avoid ssi_get_super() to reduce contention. We don't cross mount points.
- Switch to Linux get_empty_filp() to get unused file structure for svrcfstok structure.
- Regression:
  - Possible inode leak when out of memory doing export ops get_dentry. (#ifdef CFS_EXPORT_OPS)
  - Possibly missed drop_super() while performing export ops get_dentry. (#ifdef CFS_FH_TO_DENTRY_ANON)

IPC:
- Fix uninitialized spin lock in kern_ipc_perm structure (in SSI context).
- Fix uninitialized linked list pointers in unixnm_svr_entry and unixnm_cache_entry structures.
- SHM dentry lookup bug fixes:
  - Error -ENOENT in CFS (negative dentry) due to not validating against PFS.
  - Fix SHM negative dentry lookup could cause future memory corruption.
    - Did not increment inode count when instantiating dentry.
    - Bad dentry reference count side-effect due to incorrect return value for Linux namespace architecture.

IPVS:
- Fix uninitialized linked list pointers in ipvs_dirinfo and portweight_list structures.

SSI:
- Fix dentry race calling __d_path() outside dcache lock. (#ifdef SSI_DCACHE_RACE_FIX)
- Fix uninitialized linked list pointers in structures rmtfb_cmn, ssidev_hash, fifonm_svr_entry, fifonm_cache_entry, and ssipty_svr_
entry.

VPROC:
- Fix possibly missed drop_super() during process migration exporting of file descriptors.
- Fix partially initialized proc_root_readdir_cookie structure.
- semundo_load_msg() handle process sysvsem.undo_list->proc_list race take two. (#ifdef VPROC_UNLOAD_SETSCHED_SMP)
- Regression:
  - Process migration traversing rmtfb path while importing SHM fd's; caused by fb_svrnode macro. (#ifdef REOP_EXPORT_PATH_SVRNODE)


Index: proc_cluster.c
===================================================================
RCS file: /cvsroot/ssic-linux/openssi/kernel/fs/proc/proc_cluster.c,v
retrieving revision 1.13
retrieving revision 1.14
diff -u -d -r1.13 -r1.14
--- proc_cluster.c	23 Apr 2005 04:50:24 -0000	1.13
+++ proc_cluster.c	19 Feb 2009 08:01:02 -0000	1.14
@@ -90,7 +90,7 @@
 			/* fall through */
 		case 1:
 			if (filldir(dirent, "..", 2, i,
-				    filp->f_dentry->d_parent->d_inode->i_ino,
+				    parent_ino(filp->f_dentry),
 				    DT_DIR) < 0)
 				return 0;
 			i++;
@@ -213,7 +213,6 @@
 	unsigned long action;
 	char nodename[16];
 	clusternode_t node;
-	struct dentry *de, *dparent;
 	int error = 0;
 
 	if (count > PROC_BLOCK_SIZE)
@@ -235,9 +234,7 @@
 	/* Use the file struct to get the back pathwalk and
 	 * see which node its wants.
 	 */
-	 de = file->f_dentry;
-	 dparent = de->d_parent;
-	 sprintf(nodename, "%s", dparent->d_name.name);
+	 sprintf(nodename, "%s", file->f_dentry->d_parent->d_name.name);
 	 node = simple_strtoul((char *)nodename+4, NULL, 10);
 
 	 if (node) {


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