From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Tue, 3 Jan 2006 08:55:38 +0000 (+0100)
Subject: NFSv4: Ensure DELEGRETURN returns attributes
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fa178f29c0f8a0dce748181a5351f4a92fd4f455;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git
NFSv4: Ensure DELEGRETURN returns attributes
Upon return of a write delegation, the server will almost always bump the
change attribute. Ensure that we pick up that change so that we don't
invalidate our data cache unnecessarily.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index d2ee09b38ce..66cc720e392 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -159,8 +159,6 @@ static int nfs_do_return_delegation(struct inode *inode, struct nfs_delegation *
{
int res = 0;
- __nfs_revalidate_inode(NFS_SERVER(inode), inode);
-
res = nfs4_proc_delegreturn(inode, delegation->cred, &delegation->stateid);
nfs_free_delegation(delegation);
return res;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index b3349154994..984ca3454d0 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2920,11 +2920,12 @@ nfs4_proc_setclientid_confirm(struct nfs4_client *clp, struct rpc_cred *cred)
struct nfs4_delegreturndata {
struct nfs4_delegreturnargs args;
+ struct nfs4_delegreturnres res;
struct nfs_fh fh;
nfs4_stateid stateid;
struct rpc_cred *cred;
unsigned long timestamp;
- const struct nfs_server *server;
+ struct nfs_fattr fattr;
int rpc_status;
};
@@ -2934,8 +2935,10 @@ static void nfs4_delegreturn_prepare(struct rpc_task *task, void *calldata)
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_DELEGRETURN],
.rpc_argp = &data->args,
+ .rpc_resp = &data->res,
.rpc_cred = data->cred,
};
+ nfs_fattr_init(data->res.fattr);
rpc_call_setup(task, &msg, 0);
}
@@ -2944,7 +2947,7 @@ static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata)
struct nfs4_delegreturndata *data = calldata;
data->rpc_status = task->tk_status;
if (data->rpc_status == 0)
- renew_lease(data->server, data->timestamp);
+ renew_lease(data->res.server, data->timestamp);
}
static void nfs4_delegreturn_release(void *calldata)
@@ -2964,6 +2967,7 @@ const static struct rpc_call_ops nfs4_delegreturn_ops = {
static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid)
{
struct nfs4_delegreturndata *data;
+ struct nfs_server *server = NFS_SERVER(inode);
struct rpc_task *task;
int status;
@@ -2972,11 +2976,13 @@ static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, co
return -ENOMEM;
data->args.fhandle = &data->fh;
data->args.stateid = &data->stateid;
+ data->args.bitmask = server->attr_bitmask;
nfs_copy_fh(&data->fh, NFS_FH(inode));
memcpy(&data->stateid, stateid, sizeof(data->stateid));
+ data->res.fattr = &data->fattr;
+ data->res.server = server;
data->cred = get_rpccred(cred);
data->timestamp = jiffies;
- data->server = NFS_SERVER(inode);
data->rpc_status = 0;
task = rpc_run_task(NFS_CLIENT(inode), RPC_TASK_ASYNC, &nfs4_delegreturn_ops, data);
@@ -2985,8 +2991,11 @@ static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, co
return PTR_ERR(task);
}
status = nfs4_wait_for_completion_rpc_task(task);
- if (status == 0)
+ if (status == 0) {
status = data->rpc_status;
+ if (status == 0)
+ nfs_post_op_update_inode(inode, &data->fattr);
+ }
rpc_release_task(task);
return status;
}
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 5d6bda43dfa..12be1d68216 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -392,9 +392,11 @@ static int nfs_stat_to_errno(int);
decode_getattr_maxsz)
#define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
- encode_delegreturn_maxsz)
+ encode_delegreturn_maxsz + \
+ encode_getattr_maxsz)
#define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
- decode_delegreturn_maxsz)
+ decode_delegreturn_maxsz + \
+ decode_getattr_maxsz)
#define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_getattr_maxsz)
@@ -1983,14 +1985,20 @@ static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, uint32_t *p, const str
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 3,
};
int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- if ((status = encode_putfh(&xdr, args->fhandle)) == 0)
- status = encode_delegreturn(&xdr, args->stateid);
+ status = encode_putfh(&xdr, args->fhandle);
+ if (status != 0)
+ goto out;
+ status = encode_delegreturn(&xdr, args->stateid);
+ if (status != 0)
+ goto out;
+ status = encode_getfattr(&xdr, args->bitmask);
+out:
return status;
}
@@ -4184,7 +4192,7 @@ static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, s
/*
* DELEGRETURN request
*/
-static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, void *dummy)
+static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_delegreturnres *res)
{
struct xdr_stream xdr;
struct compound_hdr hdr;
@@ -4192,11 +4200,14 @@ static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, void *d
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
status = decode_compound_hdr(&xdr, &hdr);
- if (status == 0) {
- status = decode_putfh(&xdr);
- if (status == 0)
- status = decode_delegreturn(&xdr);
- }
+ if (status != 0)
+ goto out;
+ status = decode_putfh(&xdr);
+ if (status != 0)
+ goto out;
+ status = decode_delegreturn(&xdr);
+ decode_getfattr(&xdr, res->fattr, res->server);
+out:
return status;
}
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 9f422fd8767..6d6f69ec567 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -220,6 +220,12 @@ struct nfs_lockt_res {
struct nfs4_delegreturnargs {
const struct nfs_fh *fhandle;
const nfs4_stateid *stateid;
+ const u32 * bitmask;
+};
+
+struct nfs4_delegreturnres {
+ struct nfs_fattr * fattr;
+ const struct nfs_server *server;
};
/*