[3/3] CIFS: Invaldate remote inode on the last close

Commit Message

Pavel Shilovsky Sept. 27, 2010, 6:32 p.m. UTC

None

Patch

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index de046e1..68e1789 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -153,9 +153,16 @@  psx_client_can_cache:
 		pCifsInode->clientCanCacheAll = true;
 		pCifsInode->clientCanCacheRead = true;
 		cFYI(1, "Exclusive Oplock granted on inode %p",
-			 file->f_path.dentry->d_inode);
-	} else if ((oplock & 0xF) == OPLOCK_READ)
+		     file->f_path.dentry->d_inode);
+	} else if ((oplock & 0xF) == OPLOCK_READ) {
+		pCifsInode->clientCanCacheAll = false;
 		pCifsInode->clientCanCacheRead = true;
+		cFYI(1, "Level II Oplock franted on inode %p",
+		     file->f_path.dentry->d_inode);
+	} else {
+		pCifsInode->clientCanCacheAll = false;
+		pCifsInode->clientCanCacheRead = false;
+	}

 	/* will have to change the unlock if we reenable the
 	   filemap_fdatawrite (which does not seem necessary */
@@ -211,8 +218,14 @@  client_can_cache:
 		pCifsInode->clientCanCacheAll = true;
 		pCifsInode->clientCanCacheRead = true;
 		cFYI(1, "Exclusive Oplock granted on inode %p", inode);
-	} else if ((oplock & 0xF) == OPLOCK_READ)
+	} else if ((oplock & 0xF) == OPLOCK_READ) {
+		pCifsInode->clientCanCacheAll = false;
 		pCifsInode->clientCanCacheRead = true;
+		cFYI(1, "Level II Oplock franted on inode %p", inode);
+	} else {
+		pCifsInode->clientCanCacheAll = false;
+		pCifsInode->clientCanCacheRead = false;
+	}

 	return rc;
 }
@@ -633,6 +646,8 @@  int cifs_close(struct inode *inode, struct file *file)
 		   on this inode, much less write behind and read ahead */
 		CIFS_I(inode)->clientCanCacheRead = false;
 		CIFS_I(inode)->clientCanCacheAll  = false;
+		if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_STRICT_IO)
+			invalidate_remote_inode(inode);
 	}
 	read_unlock(&GlobalSMBSeslock);
 	if ((rc == 0) && CIFS_I(inode)->write_behind_rc)