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authorTrond Myklebust <Trond.Myklebust@netapp.com>2007-07-14 15:39:58 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2007-07-19 15:21:39 -0400
commite4eff1a622edd6ab7b73acd5d8763aa2fa3fee49 (patch)
tree257d6675733d4af122a77054281e1d7d5062d904 /fs/nfs/nfs4proc.c
parent4fdc17b2a7f4d9db5b08e0f963d0027f714e4104 (diff)
downloadop-kernel-dev-e4eff1a622edd6ab7b73acd5d8763aa2fa3fee49.zip
op-kernel-dev-e4eff1a622edd6ab7b73acd5d8763aa2fa3fee49.tar.gz
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>
Diffstat (limited to 'fs/nfs/nfs4proc.c')
-rw-r--r--fs/nfs/nfs4proc.c50
1 files changed, 14 insertions, 36 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 23dc25d..6ca2795 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1962,48 +1962,26 @@ static int nfs4_proc_remove(struct inode *dir, struct qstr *name)
return err;
}
-struct unlink_desc {
- struct nfs_removeargs args;
- struct nfs_removeres res;
-};
-
-static int nfs4_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir,
- struct qstr *name)
+static void nfs4_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
{
- struct nfs_server *server = NFS_SERVER(dir->d_inode);
- struct unlink_desc *up;
+ struct nfs_server *server = NFS_SERVER(dir);
+ struct nfs_removeargs *args = msg->rpc_argp;
+ struct nfs_removeres *res = msg->rpc_resp;
- up = kmalloc(sizeof(*up), GFP_KERNEL);
- if (!up)
- return -ENOMEM;
-
- up->args.fh = NFS_FH(dir->d_inode);
- up->args.name.len = name->len;
- up->args.name.name = name->name;
- up->args.bitmask = server->attr_bitmask;
- up->res.server = server;
- nfs_fattr_init(&up->res.dir_attr);
-
+ args->bitmask = server->attr_bitmask;
+ res->server = server;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_REMOVE];
- msg->rpc_argp = &up->args;
- msg->rpc_resp = &up->res;
- return 0;
}
-static int nfs4_proc_unlink_done(struct dentry *dir, struct rpc_task *task)
+static int nfs4_proc_unlink_done(struct rpc_task *task, struct inode *dir)
{
- struct rpc_message *msg = &task->tk_msg;
- struct unlink_desc *up;
-
- if (msg->rpc_resp != NULL) {
- up = container_of(msg->rpc_resp, struct unlink_desc, res);
- update_changeattr(dir->d_inode, &up->res.cinfo);
- nfs_post_op_update_inode(dir->d_inode, &up->res.dir_attr);
- kfree(up);
- msg->rpc_resp = NULL;
- msg->rpc_argp = NULL;
- }
- return 0;
+ struct nfs_removeres *res = task->tk_msg.rpc_resp;
+
+ if (nfs4_async_handle_error(task, res->server) == -EAGAIN)
+ return 0;
+ update_changeattr(dir, &res->cinfo);
+ nfs_post_op_update_inode(dir, &res->dir_attr);
+ return 1;
}
static int _nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name,
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