SUNRPC: Clean up the sillyrename code
Fix a couple of bugs:
- Don't rely on the parent dentry still being valid when the call completes.
Fixes a race with shrink_dcache_for_umount_subtree()
- Don't remove the file if the filehandle has been labelled as stale.
Fix a couple of inefficiencies
- Remove the global list of sillyrenamed files. Instead we can cache the
sillyrename information in the dentry->d_fsdata
- Move common code from unlink_setup/unlink_done into fs/nfs/unlink.c
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index eac07f2..c7ca5d7 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -370,41 +370,21 @@
return status;
}
-static int
-nfs3_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir, struct qstr *name)
+static void
+nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
{
- struct unlinkxdr {
- struct nfs_removeargs arg;
- struct nfs_removeres res;
- } *ptr;
-
- ptr = kmalloc(sizeof(*ptr), GFP_KERNEL);
- if (!ptr)
- return -ENOMEM;
- ptr->arg.fh = NFS_FH(dir->d_inode);
- ptr->arg.name.name = name->name;
- ptr->arg.name.len = name->len;
- nfs_fattr_init(&ptr->res.dir_attr);
msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE];
- msg->rpc_argp = &ptr->arg;
- msg->rpc_resp = &ptr->res;
- return 0;
}
static int
-nfs3_proc_unlink_done(struct dentry *dir, struct rpc_task *task)
+nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir)
{
- struct rpc_message *msg = &task->tk_msg;
- struct nfs_fattr *dir_attr;
-
- if (nfs3_async_handle_jukebox(task, dir->d_inode))
- return 1;
- if (msg->rpc_argp) {
- dir_attr = &((struct nfs_removeres*)msg->rpc_resp)->dir_attr;
- nfs_post_op_update_inode(dir->d_inode, dir_attr);
- kfree(msg->rpc_argp);
- }
- return 0;
+ struct nfs_removeres *res;
+ if (nfs3_async_handle_jukebox(task, dir))
+ return 0;
+ res = task->tk_msg.rpc_resp;
+ nfs_post_op_update_inode(dir, &res->dir_attr);
+ return 1;
}
static int