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NFS: Reduce stack footprint of nfs_proc_remove() 

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2010-04-16 16:22:50 -04:00
parent 3b14d6542d
commit d346890bea
6 changed files with 24 additions and 12 deletions
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13
fs/nfs/nfs3proc.c
View File

@ -406,12 +406,17 @@ nfs3_proc_remove(struct inode *dir, struct qstr *name)
.rpc_argp = &arg,
.rpc_resp = &res,
};
int status;
int status = -ENOMEM;
dprintk("NFS call remove %s\n", name->name);
nfs_fattr_init(&res.dir_attr);
res.dir_attr = nfs_alloc_fattr();
if (res.dir_attr == NULL)
goto out;
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
nfs_post_op_update_inode(dir, &res.dir_attr);
nfs_post_op_update_inode(dir, res.dir_attr);
nfs_free_fattr(res.dir_attr);
out:
dprintk("NFS reply remove: %d\n", status);
return status;
}
@ -429,7 +434,7 @@ nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir)
if (nfs3_async_handle_jukebox(task, dir))
return 0;
res = task->tk_msg.rpc_resp;
nfs_post_op_update_inode(dir, &res->dir_attr);
nfs_post_op_update_inode(dir, res->dir_attr);
return 1;
}

2
fs/nfs/nfs3xdr.c
View File

@ -762,7 +762,7 @@ nfs3_xdr_wccstat(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr)
static int
nfs3_xdr_removeres(struct rpc_rqst *req, __be32 *p, struct nfs_removeres *res)
{
return nfs3_xdr_wccstat(req, p, &res->dir_attr);
return nfs3_xdr_wccstat(req, p, res->dir_attr);
}
/*

13
fs/nfs/nfs4proc.c
View File

@ -2599,14 +2599,19 @@ static int _nfs4_proc_remove(struct inode *dir, struct qstr *name)
.rpc_argp = &args,
.rpc_resp = &res,
};
int status;
int status = -ENOMEM;
res.dir_attr = nfs_alloc_fattr();
if (res.dir_attr == NULL)
goto out;
nfs_fattr_init(&res.dir_attr);
status = nfs4_call_sync(server, &msg, &args, &res, 1);
if (status == 0) {
update_changeattr(dir, &res.cinfo);
nfs_post_op_update_inode(dir, &res.dir_attr);
nfs_post_op_update_inode(dir, res.dir_attr);
}
nfs_free_fattr(res.dir_attr);
out:
return status;
}
@ -2641,7 +2646,7 @@ static int nfs4_proc_unlink_done(struct rpc_task *task, struct inode *dir)
if (nfs4_async_handle_error(task, res->server, NULL) == -EAGAIN)
return 0;
update_changeattr(dir, &res->cinfo);
nfs_post_op_update_inode(dir, &res->dir_attr);
nfs_post_op_update_inode(dir, res->dir_attr);
return 1;
}

2
fs/nfs/nfs4xdr.c
View File

@ -4815,7 +4815,7 @@ static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_rem
goto out;
if ((status = decode_remove(&xdr, &res->cinfo)) != 0)
goto out;
decode_getfattr(&xdr, &res->dir_attr, res->server,
decode_getfattr(&xdr, res->dir_attr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task));
out:
return status;

4
fs/nfs/unlink.c
View File

@ -23,6 +23,7 @@ struct nfs_unlinkdata {
struct nfs_removeres res;
struct inode *dir;
struct rpc_cred *cred;
struct nfs_fattr dir_attr;
};
/**
@ -169,7 +170,7 @@ static int nfs_do_call_unlink(struct dentry *parent, struct inode *dir, struct n
}
nfs_sb_active(dir->i_sb);
data->args.fh = NFS_FH(dir);
nfs_fattr_init(&data->res.dir_attr);
nfs_fattr_init(data->res.dir_attr);
NFS_PROTO(dir)->unlink_setup(&msg, dir);
@ -259,6 +260,7 @@ nfs_async_unlink(struct inode *dir, struct dentry *dentry)
goto out_free;
}
data->res.seq_res.sr_slotid = NFS4_MAX_SLOT_TABLE;
data->res.dir_attr = &data->dir_attr;
status = -EBUSY;
spin_lock(&dentry->d_lock);

2
include/linux/nfs_xdr.h
View File

@ -386,8 +386,8 @@ struct nfs_removeargs {
struct nfs_removeres {
const struct nfs_server *server;
struct nfs_fattr *dir_attr;
struct nfs4_change_info cinfo;
struct nfs_fattr dir_attr;
struct nfs4_sequence_res seq_res;
};