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-rw-r--r--include/linux/dcache.h14
1 files changed, 10 insertions, 4 deletions
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index f2afed4fa94..d37d2a79309 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -1,7 +1,7 @@
#ifndef __LINUX_DCACHE_H
#define __LINUX_DCACHE_H
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <linux/list.h>
#include <linux/rculist.h>
#include <linux/rculist_bl.h>
@@ -197,7 +197,7 @@ struct dentry_operations {
* typically using d_splice_alias. */
#define DCACHE_REFERENCED 0x0008 /* Recently used, don't discard. */
-#define DCACHE_UNHASHED 0x0010
+#define DCACHE_RCUACCESS 0x0010 /* Entry has ever been RCU-visible */
#define DCACHE_INOTIFY_PARENT_WATCHED 0x0020
/* Parent inode is watched by inotify */
@@ -216,6 +216,7 @@ struct dentry_operations {
#define DCACHE_MOUNTED 0x10000 /* is a mountpoint */
#define DCACHE_NEED_AUTOMOUNT 0x20000 /* handle automount on this dir */
#define DCACHE_MANAGE_TRANSIT 0x40000 /* manage transit from this dirent */
+#define DCACHE_NEED_LOOKUP 0x80000 /* dentry requires i_op->lookup */
#define DCACHE_MANAGED_DENTRY \
(DCACHE_MOUNTED|DCACHE_NEED_AUTOMOUNT|DCACHE_MANAGE_TRANSIT)
@@ -384,7 +385,7 @@ extern struct dentry *dget_parent(struct dentry *dentry);
static inline int d_unhashed(struct dentry *dentry)
{
- return (dentry->d_flags & DCACHE_UNHASHED);
+ return hlist_bl_unhashed(&dentry->d_hash);
}
static inline int d_unlinked(struct dentry *dentry)
@@ -416,7 +417,12 @@ static inline bool d_mountpoint(struct dentry *dentry)
return dentry->d_flags & DCACHE_MOUNTED;
}
-extern struct dentry *lookup_create(struct nameidata *nd, int is_dir);
+static inline bool d_need_lookup(struct dentry *dentry)
+{
+ return dentry->d_flags & DCACHE_NEED_LOOKUP;
+}
+
+extern void d_clear_need_lookup(struct dentry *dentry);
extern int sysctl_vfs_cache_pressure;