From 5284b44e438580a50e8cc5189297a73a48a45ecb Mon Sep 17 00:00:00 2001 From: Stanislav Kinsbursky Date: Tue, 27 Nov 2012 14:11:49 +0300 Subject: [PATCH] nfsd: make NFSv4 grace time per net Grace time is a part of NFSv4 state engine, which is constructed per network namespace. Signed-off-by: Stanislav Kinsbursky Signed-off-by: J. Bruce Fields --- fs/nfsd/netns.h | 1 + fs/nfsd/nfs4state.c | 9 +++------ fs/nfsd/nfsctl.c | 4 +++- fs/nfsd/nfsd.h | 2 -- 4 files changed, 7 insertions(+), 9 deletions(-) diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h index 0c20be82cb0..2c4b2e2896d 100644 --- a/fs/nfsd/netns.h +++ b/fs/nfsd/netns.h @@ -89,6 +89,7 @@ struct nfsd_net { bool in_grace; time_t nfsd4_lease; + time_t nfsd4_grace; }; extern int nfsd_net_id; diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 932b2ca6f20..3db7617e6d3 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -50,9 +50,6 @@ #define NFSDDBG_FACILITY NFSDDBG_PROC -/* Globals */ -time_t nfsd4_grace = 90; - #define all_ones {{~0,~0},~0} static const stateid_t one_stateid = { .si_generation = ~0, @@ -3183,7 +3180,7 @@ nfsd4_end_grace(struct nfsd_net *nn) * to see the (possibly new, possibly shorter) lease time, we * can safely set the next grace time to the current lease time: */ - nfsd4_grace = nn->nfsd4_lease; + nn->nfsd4_grace = nn->nfsd4_lease; } static time_t @@ -4884,8 +4881,8 @@ nfs4_state_start_net(struct net *net) locks_start_grace(net, &nn->nfsd4_manager); nn->grace_ended = false; printk(KERN_INFO "NFSD: starting %ld-second grace period (net %p)\n", - nfsd4_grace, net); - queue_delayed_work(laundry_wq, &nn->laundromat_work, nfsd4_grace * HZ); + nn->nfsd4_grace, net); + queue_delayed_work(laundry_wq, &nn->laundromat_work, nn->nfsd4_grace * HZ); return 0; } diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index 09d909a42ec..d902f83681e 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -925,7 +925,8 @@ static ssize_t write_leasetime(struct file *file, char *buf, size_t size) */ static ssize_t write_gracetime(struct file *file, char *buf, size_t size) { - return nfsd4_write_time(file, buf, size, &nfsd4_grace); + struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id); + return nfsd4_write_time(file, buf, size, &nn->nfsd4_grace); } static ssize_t __write_recoverydir(struct file *file, char *buf, size_t size) @@ -1070,6 +1071,7 @@ static __net_init int nfsd_init_net(struct net *net) if (retval) goto out_idmap_error; nn->nfsd4_lease = 90; /* default lease time */ + nn->nfsd4_grace = 90; return 0; out_idmap_error: diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h index a8f7325a912..5eea0f5021f 100644 --- a/fs/nfsd/nfsd.h +++ b/fs/nfsd/nfsd.h @@ -276,8 +276,6 @@ extern struct timeval nfssvc_boot; #ifdef CONFIG_NFSD_V4 -extern time_t nfsd4_grace; - /* before processing a COMPOUND operation, we have to check that there * is enough space in the buffer for XDR encode to succeed. otherwise, * we might process an operation with side effects, and be unable to