[Libsysio-commit] HEAD: libsysio/include inode.h

[Lee W. <lw...@us...>]

Update of /cvsroot/libsysio/libsysio/include
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv8234/include

Modified Files:
	inode.h 
Log Message:


Added per-directory name cache, replacing the global names cache.

This involved:

1) Adding a root node for the binary tree to the path_base record.
2) Removing the global names cache from inode.c
3) Altering the implementation of ncache_{insert,delete} to use
the parent node's names root as root.
4) Altering ncache_lookup to take the parent node and use it's root to find
the key.


Index: inode.h
===================================================================
RCS file: /cvsroot/libsysio/libsysio/include/inode.h,v
retrieving revision 1.39
retrieving revision 1.40
diff -u -w -b -B -p -r1.39 -r1.40
--- inode.h	17 Jun 2008 17:18:57 -0000	1.39
+++ inode.h	11 Jul 2008 16:48:01 -0000	1.40
@@ -272,6 +272,7 @@ struct qstr {
 struct pnode_base {
     mutex_t pb_mutex;                                   /* record mutex */
     unsigned pb_lckcnt;                                 /* # recursive locks */
+    struct tree_node *pb_ncache;			/* names cache */
     struct tree_node pb_tentry;				/* cache node entry */
     struct pnode_base_key {
 	    struct qstr pbk_name;                       /* entry name */
@@ -293,6 +294,7 @@ struct pnode_base {
 	do { \
 		mutex_init(&(_pb)->pb_mutex, MUTEX_RECURSIVE); \
 		(_pb)->pb_lckcnt = 0; \
+		(_pb)->pb_ncache = NULL; \
 		(_pb)->pb_tentry.tn_key = &(_pb)->pb_key; \
 		(_pb)->pb_tentry.tn_left = (_pb)->pb_tentry.tn_right = NULL; \
 		(_pb)->pb_key.pbk_name = *(_name); \