1 files changed, 23 insertions, 25 deletions

diff --git a/fs/coda/cache.c b/fs/coda/cache.c
index c607d923350..1da168c61d3 100644
--- a/fs/coda/cache.c
+++ b/fs/coda/cache.c
@@ -16,12 +16,13 @@
 #include <asm/uaccess.h>
 #include <linux/string.h>
 #include <linux/list.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
 
 #include <linux/coda.h>
-#include <linux/coda_linux.h>
 #include <linux/coda_psdev.h>
-#include <linux/coda_fs_i.h>
-#include <linux/coda_cache.h>
+#include "coda_linux.h"
+#include "coda_cache.h"
 
 static atomic_t permission_epoch = ATOMIC_INIT(0);
 
@@ -30,29 +31,28 @@ void coda_cache_enter(struct inode *inode, int mask)
 {
 	struct coda_inode_info *cii = ITOC(inode);
 
+	spin_lock(&cii->c_lock);
 	cii->c_cached_epoch = atomic_read(&permission_epoch);
-	if (cii->c_uid != current->fsuid) {
-                cii->c_uid = current->fsuid;
+	if (!uid_eq(cii->c_uid, current_fsuid())) {
+		cii->c_uid = current_fsuid();
                 cii->c_cached_perm = mask;
         } else
                 cii->c_cached_perm |= mask;
+	spin_unlock(&cii->c_lock);
 }
 
 /* remove cached acl from an inode */
 void coda_cache_clear_inode(struct inode *inode)
 {
 	struct coda_inode_info *cii = ITOC(inode);
-        cii->c_cached_perm = 0;
+	spin_lock(&cii->c_lock);
+	cii->c_cached_epoch = atomic_read(&permission_epoch) - 1;
+	spin_unlock(&cii->c_lock);
 }
 
 /* remove all acl caches */
 void coda_cache_clear_all(struct super_block *sb)
 {
-        struct coda_sb_info *sbi;
-
-        sbi = coda_sbp(sb);
-        if (!sbi) BUG();
-
 	atomic_inc(&permission_epoch);
 }
 
@@ -61,13 +61,15 @@ void coda_cache_clear_all(struct super_block *sb)
 int coda_cache_check(struct inode *inode, int mask)
 {
 	struct coda_inode_info *cii = ITOC(inode);
-        int hit;
+	int hit;
 	
-        hit = (mask & cii->c_cached_perm) == mask &&
-		cii->c_uid == current->fsuid &&
-		cii->c_cached_epoch == atomic_read(&permission_epoch);
+	spin_lock(&cii->c_lock);
+	hit = (mask & cii->c_cached_perm) == mask &&
+	    uid_eq(cii->c_uid, current_fsuid()) &&
+	    cii->c_cached_epoch == atomic_read(&permission_epoch);
+	spin_unlock(&cii->c_lock);
 
-        return hit;
+	return hit;
 }
 
 
@@ -87,19 +89,15 @@ int coda_cache_check(struct inode *inode, int mask)
 /* this won't do any harm: just flag all children */
 static void coda_flag_children(struct dentry *parent, int flag)
 {
-	struct list_head *child;
 	struct dentry *de;
 
-	spin_lock(&dcache_lock);
-	list_for_each(child, &parent->d_subdirs)
-	{
-		de = list_entry(child, struct dentry, d_u.d_child);
+	spin_lock(&parent->d_lock);
+	list_for_each_entry(de, &parent->d_subdirs, d_u.d_child) {
 		/* don't know what to do with negative dentries */
-		if ( ! de->d_inode ) 
-			continue;
-		coda_flag_inode(de->d_inode, flag);
+		if (de->d_inode ) 
+			coda_flag_inode(de->d_inode, flag);
 	}
-	spin_unlock(&dcache_lock);
+	spin_unlock(&parent->d_lock);
 	return; 
 }