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nfsd: make NFSv4 grace time per net

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Grace time is a part of NFSv4 state engine, which is constructed per network
namespace.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Stanislav Kinsbursky 2012-11-27 14:11:49 +03:00 committed by J. Bruce Fields
parent 3d7337115d
commit 5284b44e43
4 changed files with 7 additions and 9 deletions
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1
fs/nfsd/netns.h
View File

@ -89,6 +89,7 @@ struct nfsd_net {
bool in_grace;
time_t nfsd4_lease;
time_t nfsd4_grace;
};
extern int nfsd_net_id;

9
fs/nfsd/nfs4state.c
View File

@ -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;
}

4
fs/nfsd/nfsctl.c
View File

@ -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:

2
fs/nfsd/nfsd.h
View File

@ -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