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Message-ID: <20121206112319.29559.16664.stgit@localhost.localdomain>
Date: Thu, 06 Dec 2012 14:23:19 +0300
From: Stanislav Kinsbursky <skinsbursky@...allels.com>
To: bfields@...ldses.org
Cc: linux-nfs@...r.kernel.org, linux-kernel@...r.kernel.org,
devel@...nvz.org
Subject: [PATCH 3/8] nfsd: make NFSd service boot time per-net
All is simple: NFSd service can be started in diffent moments of time in
different network environments. So, it's "boot time" have to be assigned per
net.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@...allels.com>
---
fs/nfsd/netns.h | 5 +++++
fs/nfsd/nfs3xdr.c | 14 ++++++++++----
fs/nfsd/nfs4proc.c | 11 ++++++-----
fs/nfsd/nfsd.h | 5 -----
fs/nfsd/nfssvc.c | 4 ++--
5 files changed, 23 insertions(+), 16 deletions(-)
diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h
index da8741b..8acfb17 100644
--- a/fs/nfsd/netns.h
+++ b/fs/nfsd/netns.h
@@ -94,6 +94,11 @@ struct nfsd_net {
time_t nfsd4_grace;
bool nfsd_net_up;
+
+ /*
+ * Time of server startup
+ */
+ struct timeval nfssvc_boot;
};
extern int nfsd_net_id;
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
index 43f46cd..2b8618d 100644
--- a/fs/nfsd/nfs3xdr.c
+++ b/fs/nfsd/nfs3xdr.c
@@ -7,8 +7,10 @@
*/
#include <linux/namei.h>
+#include <linux/sunrpc/svc_xprt.h>
#include "xdr3.h"
#include "auth.h"
+#include "netns.h"
#define NFSDDBG_FACILITY NFSDDBG_XDR
@@ -720,12 +722,14 @@ int
nfs3svc_encode_writeres(struct svc_rqst *rqstp, __be32 *p,
struct nfsd3_writeres *resp)
{
+ struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
+
p = encode_wcc_data(rqstp, p, &resp->fh);
if (resp->status == 0) {
*p++ = htonl(resp->count);
*p++ = htonl(resp->committed);
- *p++ = htonl(nfssvc_boot.tv_sec);
- *p++ = htonl(nfssvc_boot.tv_usec);
+ *p++ = htonl(nn->nfssvc_boot.tv_sec);
+ *p++ = htonl(nn->nfssvc_boot.tv_usec);
}
return xdr_ressize_check(rqstp, p);
}
@@ -1082,11 +1086,13 @@ int
nfs3svc_encode_commitres(struct svc_rqst *rqstp, __be32 *p,
struct nfsd3_commitres *resp)
{
+ struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
+
p = encode_wcc_data(rqstp, p, &resp->fh);
/* Write verifier */
if (resp->status == 0) {
- *p++ = htonl(nfssvc_boot.tv_sec);
- *p++ = htonl(nfssvc_boot.tv_usec);
+ *p++ = htonl(nn->nfssvc_boot.tv_sec);
+ *p++ = htonl(nn->nfssvc_boot.tv_usec);
}
return xdr_ressize_check(rqstp, p);
}
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 87d24e5..14406ae 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -495,12 +495,13 @@ nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
&access->ac_supported);
}
-static void gen_boot_verifier(nfs4_verifier *verifier)
+static void gen_boot_verifier(nfs4_verifier *verifier, struct net *net)
{
__be32 verf[2];
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
- verf[0] = (__be32)nfssvc_boot.tv_sec;
- verf[1] = (__be32)nfssvc_boot.tv_usec;
+ verf[0] = (__be32)nn->nfssvc_boot.tv_sec;
+ verf[1] = (__be32)nn->nfssvc_boot.tv_usec;
memcpy(verifier->data, verf, sizeof(verifier->data));
}
@@ -508,7 +509,7 @@ static __be32
nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_commit *commit)
{
- gen_boot_verifier(&commit->co_verf);
+ gen_boot_verifier(&commit->co_verf, SVC_NET(rqstp));
return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset,
commit->co_count);
}
@@ -928,7 +929,7 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
cnt = write->wr_buflen;
write->wr_how_written = write->wr_stable_how;
- gen_boot_verifier(&write->wr_verifier);
+ gen_boot_verifier(&write->wr_verifier, SVC_NET(rqstp));
nvecs = fill_in_write_vector(rqstp->rq_vec, write);
WARN_ON_ONCE(nvecs > ARRAY_SIZE(rqstp->rq_vec));
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index 18f9996..71ba60d 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -269,11 +269,6 @@ void nfsd_lockd_shutdown(void);
/* Check for dir entries '.' and '..' */
#define isdotent(n, l) (l < 3 && n[0] == '.' && (l == 1 || n[1] == '.'))
-/*
- * Time of server startup
- */
-extern struct timeval nfssvc_boot;
-
#ifdef CONFIG_NFSD_V4
/* before processing a COMPOUND operation, we have to check that there
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 6e17efd..40992cd 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -27,7 +27,6 @@
extern struct svc_program nfsd_program;
static int nfsd(void *vrqstp);
-struct timeval nfssvc_boot;
/*
* nfsd_mutex protects nfsd_serv -- both the pointer itself and the members
@@ -367,6 +366,7 @@ static int nfsd_get_default_max_blksize(void)
int nfsd_create_serv(struct net *net)
{
int error;
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
WARN_ON(!mutex_is_locked(&nfsd_mutex));
if (nfsd_serv) {
@@ -388,7 +388,7 @@ int nfsd_create_serv(struct net *net)
}
set_max_drc();
- do_gettimeofday(&nfssvc_boot); /* record boot time */
+ do_gettimeofday(&nn->nfssvc_boot); /* record boot time */
return 0;
}
--
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