X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=fs%2Fnfs%2Fdir.c;h=3b2f6973e7c50cbfdd579351ae99ba5e746bc64d;hb=b1e4adf4ea41bb8b5a7bfc1a7001f137e65495df;hp=3e64b98f3a9337ab241624fc5a544425e7f05e45;hpb=9fb3c5ca3dabe06758c35f790c68e273ed749e19;p=pandora-kernel.git

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 3e64b98f3a93..3b2f6973e7c5 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -799,6 +799,9 @@ static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd)
 		goto out_bad;
 	}
 
+	if (nfs_have_delegation(inode, FMODE_READ))
+		goto out_set_verifier;
+
 	/* Force a full look up iff the parent directory has changed */
 	if (!nfs_is_exclusive_create(dir, nd) && nfs_check_verifier(dir, dentry)) {
 		if (nfs_lookup_verify_inode(inode, nd))
@@ -817,6 +820,7 @@ static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd)
 	if ((error = nfs_refresh_inode(inode, &fattr)) != 0)
 		goto out_bad;
 
+out_set_verifier:
 	nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
  out_valid:
 	dput(parent);
@@ -973,7 +977,7 @@ struct dentry_operations nfs4_dentry_operations = {
  * Use intent information to determine whether we need to substitute
  * the NFSv4-style stateful OPEN for the LOOKUP call
  */
-static int is_atomic_open(struct inode *dir, struct nameidata *nd)
+static int is_atomic_open(struct nameidata *nd)
 {
 	if (nd == NULL || nfs_lookup_check_intent(nd, LOOKUP_OPEN) == 0)
 		return 0;
@@ -996,7 +1000,7 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
 			dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
 
 	/* Check that we are indeed trying to open this file */
-	if (!is_atomic_open(dir, nd))
+	if (!is_atomic_open(nd))
 		goto no_open;
 
 	if (dentry->d_name.len > NFS_SERVER(dir)->namelen) {
@@ -1047,10 +1051,10 @@ static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd)
 	struct inode *dir;
 	int openflags, ret = 0;
 
+	if (!is_atomic_open(nd))
+		goto no_open;
 	parent = dget_parent(dentry);
 	dir = parent->d_inode;
-	if (!is_atomic_open(dir, nd))
-		goto no_open;
 	/* We can't create new files in nfs_open_revalidate(), so we
 	 * optimize away revalidation of negative dentries.
 	 */
@@ -1062,11 +1066,11 @@ static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd)
 
 	/* NFS only supports OPEN on regular files */
 	if (!S_ISREG(inode->i_mode))
-		goto no_open;
+		goto no_open_dput;
 	openflags = nd->intent.open.flags;
 	/* We cannot do exclusive creation on a positive dentry */
 	if ((openflags & (O_CREAT|O_EXCL)) == (O_CREAT|O_EXCL))
-		goto no_open;
+		goto no_open_dput;
 	/* We can't create new files, or truncate existing ones here */
 	openflags &= ~(O_CREAT|O_TRUNC);
 
@@ -1081,10 +1085,9 @@ out:
 	if (!ret)
 		d_drop(dentry);
 	return ret;
-no_open:
+no_open_dput:
 	dput(parent);
-	if (inode != NULL && nfs_have_delegation(inode, FMODE_READ))
-		return 1;
+no_open:
 	return nfs_lookup_revalidate(dentry, nd);
 }
 #endif /* CONFIG_NFSV4 */
@@ -1621,8 +1624,7 @@ static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		} else if (atomic_read(&new_dentry->d_count) > 1)
 			/* dentry still busy? */
 			goto out;
-	} else
-		nfs_drop_nlink(new_inode);
+	}
 
 go_ahead:
 	/*
@@ -1635,10 +1637,8 @@ go_ahead:
 	}
 	nfs_inode_return_delegation(old_inode);
 
-	if (new_inode != NULL) {
+	if (new_inode != NULL)
 		nfs_inode_return_delegation(new_inode);
-		d_delete(new_dentry);
-	}
 
 	error = NFS_PROTO(old_dir)->rename(old_dir, &old_dentry->d_name,
 					   new_dir, &new_dentry->d_name);
@@ -1647,6 +1647,8 @@ out:
 	if (rehash)
 		d_rehash(rehash);
 	if (!error) {
+		if (new_inode != NULL)
+			nfs_drop_nlink(new_inode);
 		d_move(old_dentry, new_dentry);
 		nfs_set_verifier(new_dentry,
 					nfs_save_change_attribute(new_dir));
@@ -1794,7 +1796,8 @@ static int nfs_access_get_cached(struct inode *inode, struct rpc_cred *cred, str
 	cache = nfs_access_search_rbtree(inode, cred);
 	if (cache == NULL)
 		goto out;
-	if (!time_in_range(jiffies, cache->jiffies, cache->jiffies + nfsi->attrtimeo))
+	if (!nfs_have_delegation(inode, FMODE_READ) &&
+	    !time_in_range_open(jiffies, cache->jiffies, cache->jiffies + nfsi->attrtimeo))
 		goto out_stale;
 	res->jiffies = cache->jiffies;
 	res->cred = cache->cred;
@@ -1888,8 +1891,14 @@ static int nfs_do_access(struct inode *inode, struct rpc_cred *cred, int mask)
 	cache.cred = cred;
 	cache.jiffies = jiffies;
 	status = NFS_PROTO(inode)->access(inode, &cache);
-	if (status != 0)
+	if (status != 0) {
+		if (status == -ESTALE) {
+			nfs_zap_caches(inode);
+			if (!S_ISDIR(inode->i_mode))
+				set_bit(NFS_INO_STALE, &NFS_I(inode)->flags);
+		}
 		return status;
+	}
 	nfs_access_add_cache(inode, &cache);
 out:
 	if ((mask & ~cache.mask & (MAY_READ | MAY_WRITE | MAY_EXEC)) == 0)