Viewing file:  dcache.c (1.31 KB) -rw-r--r--
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/*
* Directory operations for InterMezzo filesystem
* Original version: (C) 1996 P. Braam and M. Callahan
* Rewritten for Linux 2.1. (C) 1997 Carnegie Mellon University
*
* Stelias encourages users to contribute improvements to
* the InterMezzo project. Contact Peter Braam (coda@stelias.com).
*/
#define __NO_VERSION__
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/fs.h>
#include <linux/stat.h>
#include <linux/errno.h>
#include <linux/locks.h>
#include <asm/segment.h>
#include <asm/uaccess.h>
#include <linux/string.h>
#include <linux/intermezzo_fs.h>
static int presto_dentry_revalidate(struct dentry *de, int );
/* called when a cache lookup succeeds */
static int presto_dentry_revalidate(struct dentry *de, int flag)
{
struct inode *inode = de->d_inode;
ENTRY;
if (!inode) {
EXIT;
return 1;
}
if (is_bad_inode(inode)) {
EXIT;
return 0;
}
if ( S_ISDIR(inode->i_mode) ) {
EXIT;
return (presto_chk(de, PRESTO_DATA) &&
(presto_chk(de, PRESTO_ATTR)));
} else {
EXIT;
return presto_chk(de, PRESTO_ATTR);
}
}
static void presto_dentry_iput(struct dentry *dentry, struct inode *inode)
{
dentry->d_time = 0;
iput(inode);
}
struct dentry_operations presto_dentry_ops =
{
d_revalidate: presto_dentry_revalidate,
d_iput: presto_dentry_iput
};
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