* [PATCH v2] Lockd: pass network namespace to creation and destruction routines
@ 2012-03-29 14:54 Stanislav Kinsbursky
2012-04-11 16:11 ` J. Bruce Fields
0 siblings, 1 reply; 7+ messages in thread
From: Stanislav Kinsbursky @ 2012-03-29 14:54 UTC (permalink / raw)
To: Trond.Myklebust
Cc: linux-nfs, xemul, neilb, netdev, linux-kernel, jbottomley,
bfields, davem, devel
v2: dereference of most probably already released nlm_host removed in
nlmclnt_done() and reclaimer().
These routines are called from locks reclaimer() kernel thread. This thread
works in "init_net" network context and currently relays on persence on lockd
thread and it's per-net resources. Thus lockd_up() and lockd_down() can't relay
on current network context. So let's pass corrent one into them.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
---
fs/lockd/clntlock.c | 13 ++++++++-----
fs/lockd/svc.c | 7 +++----
fs/nfsd/nfssvc.c | 6 +++---
include/linux/lockd/bind.h | 4 ++--
4 files changed, 16 insertions(+), 14 deletions(-)
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
index ba1dc2e..ca0a080 100644
--- a/fs/lockd/clntlock.c
+++ b/fs/lockd/clntlock.c
@@ -56,7 +56,7 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
u32 nlm_version = (nlm_init->nfs_version == 2) ? 1 : 4;
int status;
- status = lockd_up();
+ status = lockd_up(nlm_init->net);
if (status < 0)
return ERR_PTR(status);
@@ -65,7 +65,7 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
nlm_init->hostname, nlm_init->noresvport,
nlm_init->net);
if (host == NULL) {
- lockd_down();
+ lockd_down(nlm_init->net);
return ERR_PTR(-ENOLCK);
}
@@ -80,8 +80,10 @@ EXPORT_SYMBOL_GPL(nlmclnt_init);
*/
void nlmclnt_done(struct nlm_host *host)
{
+ struct net *net = host->net;
+
nlmclnt_release_host(host);
- lockd_down();
+ lockd_down(net);
}
EXPORT_SYMBOL_GPL(nlmclnt_done);
@@ -220,11 +222,12 @@ reclaimer(void *ptr)
struct nlm_wait *block;
struct file_lock *fl, *next;
u32 nsmstate;
+ struct net *net = host->net;
allow_signal(SIGKILL);
down_write(&host->h_rwsem);
- lockd_up(); /* note: this cannot fail as lockd is already running */
+ lockd_up(net); /* note: this cannot fail as lockd is already running */
dprintk("lockd: reclaiming locks for host %s\n", host->h_name);
@@ -275,6 +278,6 @@ restart:
/* Release host handle after use */
nlmclnt_release_host(host);
- lockd_down();
+ lockd_down(net);
return 0;
}
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index b34100e..ce4c80e 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -295,11 +295,10 @@ static void lockd_down_net(struct net *net)
/*
* Bring up the lockd process if it's not already up.
*/
-int lockd_up(void)
+int lockd_up(struct net *net)
{
struct svc_serv *serv;
int error = 0;
- struct net *net = current->nsproxy->net_ns;
mutex_lock(&nlmsvc_mutex);
/*
@@ -377,12 +376,12 @@ EXPORT_SYMBOL_GPL(lockd_up);
* Decrement the user count and bring down lockd if we're the last.
*/
void
-lockd_down(void)
+lockd_down(struct net *net)
{
mutex_lock(&nlmsvc_mutex);
if (nlmsvc_users) {
if (--nlmsvc_users) {
- lockd_down_net(current->nsproxy->net_ns);
+ lockd_down_net(net);
goto out;
}
} else {
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index fce472f..0f3e35b 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -220,7 +220,7 @@ static int nfsd_startup(unsigned short port, int nrservs)
ret = nfsd_init_socks(port);
if (ret)
goto out_racache;
- ret = lockd_up();
+ ret = lockd_up(&init_net);
if (ret)
goto out_racache;
ret = nfs4_state_start();
@@ -229,7 +229,7 @@ static int nfsd_startup(unsigned short port, int nrservs)
nfsd_up = true;
return 0;
out_lockd:
- lockd_down();
+ lockd_down(&init_net);
out_racache:
nfsd_racache_shutdown();
return ret;
@@ -246,7 +246,7 @@ static void nfsd_shutdown(void)
if (!nfsd_up)
return;
nfs4_state_shutdown();
- lockd_down();
+ lockd_down(&init_net);
nfsd_racache_shutdown();
nfsd_up = false;
}
diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h
index 11a966e..4d24d64 100644
--- a/include/linux/lockd/bind.h
+++ b/include/linux/lockd/bind.h
@@ -54,7 +54,7 @@ extern void nlmclnt_done(struct nlm_host *host);
extern int nlmclnt_proc(struct nlm_host *host, int cmd,
struct file_lock *fl);
-extern int lockd_up(void);
-extern void lockd_down(void);
+extern int lockd_up(struct net *net);
+extern void lockd_down(struct net *net);
#endif /* LINUX_LOCKD_BIND_H */
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH v2] Lockd: pass network namespace to creation and destruction routines
@ 2012-04-11 16:11 ` J. Bruce Fields
0 siblings, 0 replies; 7+ messages in thread
From: J. Bruce Fields @ 2012-04-11 16:11 UTC (permalink / raw)
To: Stanislav Kinsbursky
Cc: Trond.Myklebust, linux-nfs, xemul, neilb, netdev, linux-kernel,
jbottomley, davem, devel
On Thu, Mar 29, 2012 at 06:54:33PM +0400, Stanislav Kinsbursky wrote:
> v2: dereference of most probably already released nlm_host removed in
> nlmclnt_done() and reclaimer().
Did you want this in Trond's tree or mine?
--b.
>
> These routines are called from locks reclaimer() kernel thread. This thread
> works in "init_net" network context and currently relays on persence on lockd
> thread and it's per-net resources. Thus lockd_up() and lockd_down() can't relay
> on current network context. So let's pass corrent one into them.
>
> Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
>
> Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
>
> ---
> fs/lockd/clntlock.c | 13 ++++++++-----
> fs/lockd/svc.c | 7 +++----
> fs/nfsd/nfssvc.c | 6 +++---
> include/linux/lockd/bind.h | 4 ++--
> 4 files changed, 16 insertions(+), 14 deletions(-)
>
> diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
> index ba1dc2e..ca0a080 100644
> --- a/fs/lockd/clntlock.c
> +++ b/fs/lockd/clntlock.c
> @@ -56,7 +56,7 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
> u32 nlm_version = (nlm_init->nfs_version == 2) ? 1 : 4;
> int status;
>
> - status = lockd_up();
> + status = lockd_up(nlm_init->net);
> if (status < 0)
> return ERR_PTR(status);
>
> @@ -65,7 +65,7 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
> nlm_init->hostname, nlm_init->noresvport,
> nlm_init->net);
> if (host == NULL) {
> - lockd_down();
> + lockd_down(nlm_init->net);
> return ERR_PTR(-ENOLCK);
> }
>
> @@ -80,8 +80,10 @@ EXPORT_SYMBOL_GPL(nlmclnt_init);
> */
> void nlmclnt_done(struct nlm_host *host)
> {
> + struct net *net = host->net;
> +
> nlmclnt_release_host(host);
> - lockd_down();
> + lockd_down(net);
> }
> EXPORT_SYMBOL_GPL(nlmclnt_done);
>
> @@ -220,11 +222,12 @@ reclaimer(void *ptr)
> struct nlm_wait *block;
> struct file_lock *fl, *next;
> u32 nsmstate;
> + struct net *net = host->net;
>
> allow_signal(SIGKILL);
>
> down_write(&host->h_rwsem);
> - lockd_up(); /* note: this cannot fail as lockd is already running */
> + lockd_up(net); /* note: this cannot fail as lockd is already running */
>
> dprintk("lockd: reclaiming locks for host %s\n", host->h_name);
>
> @@ -275,6 +278,6 @@ restart:
>
> /* Release host handle after use */
> nlmclnt_release_host(host);
> - lockd_down();
> + lockd_down(net);
> return 0;
> }
> diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
> index b34100e..ce4c80e 100644
> --- a/fs/lockd/svc.c
> +++ b/fs/lockd/svc.c
> @@ -295,11 +295,10 @@ static void lockd_down_net(struct net *net)
> /*
> * Bring up the lockd process if it's not already up.
> */
> -int lockd_up(void)
> +int lockd_up(struct net *net)
> {
> struct svc_serv *serv;
> int error = 0;
> - struct net *net = current->nsproxy->net_ns;
>
> mutex_lock(&nlmsvc_mutex);
> /*
> @@ -377,12 +376,12 @@ EXPORT_SYMBOL_GPL(lockd_up);
> * Decrement the user count and bring down lockd if we're the last.
> */
> void
> -lockd_down(void)
> +lockd_down(struct net *net)
> {
> mutex_lock(&nlmsvc_mutex);
> if (nlmsvc_users) {
> if (--nlmsvc_users) {
> - lockd_down_net(current->nsproxy->net_ns);
> + lockd_down_net(net);
> goto out;
> }
> } else {
> diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
> index fce472f..0f3e35b 100644
> --- a/fs/nfsd/nfssvc.c
> +++ b/fs/nfsd/nfssvc.c
> @@ -220,7 +220,7 @@ static int nfsd_startup(unsigned short port, int nrservs)
> ret = nfsd_init_socks(port);
> if (ret)
> goto out_racache;
> - ret = lockd_up();
> + ret = lockd_up(&init_net);
> if (ret)
> goto out_racache;
> ret = nfs4_state_start();
> @@ -229,7 +229,7 @@ static int nfsd_startup(unsigned short port, int nrservs)
> nfsd_up = true;
> return 0;
> out_lockd:
> - lockd_down();
> + lockd_down(&init_net);
> out_racache:
> nfsd_racache_shutdown();
> return ret;
> @@ -246,7 +246,7 @@ static void nfsd_shutdown(void)
> if (!nfsd_up)
> return;
> nfs4_state_shutdown();
> - lockd_down();
> + lockd_down(&init_net);
> nfsd_racache_shutdown();
> nfsd_up = false;
> }
> diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h
> index 11a966e..4d24d64 100644
> --- a/include/linux/lockd/bind.h
> +++ b/include/linux/lockd/bind.h
> @@ -54,7 +54,7 @@ extern void nlmclnt_done(struct nlm_host *host);
>
> extern int nlmclnt_proc(struct nlm_host *host, int cmd,
> struct file_lock *fl);
> -extern int lockd_up(void);
> -extern void lockd_down(void);
> +extern int lockd_up(struct net *net);
> +extern void lockd_down(struct net *net);
>
> #endif /* LINUX_LOCKD_BIND_H */
>
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] Lockd: pass network namespace to creation and destruction routines
@ 2012-04-11 16:11 ` J. Bruce Fields
0 siblings, 0 replies; 7+ messages in thread
From: J. Bruce Fields @ 2012-04-11 16:11 UTC (permalink / raw)
To: Stanislav Kinsbursky
Cc: Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA,
linux-nfs-u79uwXL29TY76Z2rM5mHXA, xemul-bzQdu9zFT3WakBO8gow8eQ,
neilb-l3A5Bk7waGM, netdev-u79uwXL29TY76Z2rM5mHXA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA,
jbottomley-bzQdu9zFT3WakBO8gow8eQ, davem-fT/PcQaiUtIeIZ0/mPfg9Q,
devel-GEFAQzZX7r8dnm+yROfE0A
On Thu, Mar 29, 2012 at 06:54:33PM +0400, Stanislav Kinsbursky wrote:
> v2: dereference of most probably already released nlm_host removed in
> nlmclnt_done() and reclaimer().
Did you want this in Trond's tree or mine?
--b.
>
> These routines are called from locks reclaimer() kernel thread. This thread
> works in "init_net" network context and currently relays on persence on lockd
> thread and it's per-net resources. Thus lockd_up() and lockd_down() can't relay
> on current network context. So let's pass corrent one into them.
>
> Signed-off-by: Stanislav Kinsbursky <skinsbursky-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
>
> Signed-off-by: Stanislav Kinsbursky <skinsbursky-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
>
> ---
> fs/lockd/clntlock.c | 13 ++++++++-----
> fs/lockd/svc.c | 7 +++----
> fs/nfsd/nfssvc.c | 6 +++---
> include/linux/lockd/bind.h | 4 ++--
> 4 files changed, 16 insertions(+), 14 deletions(-)
>
> diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
> index ba1dc2e..ca0a080 100644
> --- a/fs/lockd/clntlock.c
> +++ b/fs/lockd/clntlock.c
> @@ -56,7 +56,7 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
> u32 nlm_version = (nlm_init->nfs_version == 2) ? 1 : 4;
> int status;
>
> - status = lockd_up();
> + status = lockd_up(nlm_init->net);
> if (status < 0)
> return ERR_PTR(status);
>
> @@ -65,7 +65,7 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
> nlm_init->hostname, nlm_init->noresvport,
> nlm_init->net);
> if (host == NULL) {
> - lockd_down();
> + lockd_down(nlm_init->net);
> return ERR_PTR(-ENOLCK);
> }
>
> @@ -80,8 +80,10 @@ EXPORT_SYMBOL_GPL(nlmclnt_init);
> */
> void nlmclnt_done(struct nlm_host *host)
> {
> + struct net *net = host->net;
> +
> nlmclnt_release_host(host);
> - lockd_down();
> + lockd_down(net);
> }
> EXPORT_SYMBOL_GPL(nlmclnt_done);
>
> @@ -220,11 +222,12 @@ reclaimer(void *ptr)
> struct nlm_wait *block;
> struct file_lock *fl, *next;
> u32 nsmstate;
> + struct net *net = host->net;
>
> allow_signal(SIGKILL);
>
> down_write(&host->h_rwsem);
> - lockd_up(); /* note: this cannot fail as lockd is already running */
> + lockd_up(net); /* note: this cannot fail as lockd is already running */
>
> dprintk("lockd: reclaiming locks for host %s\n", host->h_name);
>
> @@ -275,6 +278,6 @@ restart:
>
> /* Release host handle after use */
> nlmclnt_release_host(host);
> - lockd_down();
> + lockd_down(net);
> return 0;
> }
> diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
> index b34100e..ce4c80e 100644
> --- a/fs/lockd/svc.c
> +++ b/fs/lockd/svc.c
> @@ -295,11 +295,10 @@ static void lockd_down_net(struct net *net)
> /*
> * Bring up the lockd process if it's not already up.
> */
> -int lockd_up(void)
> +int lockd_up(struct net *net)
> {
> struct svc_serv *serv;
> int error = 0;
> - struct net *net = current->nsproxy->net_ns;
>
> mutex_lock(&nlmsvc_mutex);
> /*
> @@ -377,12 +376,12 @@ EXPORT_SYMBOL_GPL(lockd_up);
> * Decrement the user count and bring down lockd if we're the last.
> */
> void
> -lockd_down(void)
> +lockd_down(struct net *net)
> {
> mutex_lock(&nlmsvc_mutex);
> if (nlmsvc_users) {
> if (--nlmsvc_users) {
> - lockd_down_net(current->nsproxy->net_ns);
> + lockd_down_net(net);
> goto out;
> }
> } else {
> diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
> index fce472f..0f3e35b 100644
> --- a/fs/nfsd/nfssvc.c
> +++ b/fs/nfsd/nfssvc.c
> @@ -220,7 +220,7 @@ static int nfsd_startup(unsigned short port, int nrservs)
> ret = nfsd_init_socks(port);
> if (ret)
> goto out_racache;
> - ret = lockd_up();
> + ret = lockd_up(&init_net);
> if (ret)
> goto out_racache;
> ret = nfs4_state_start();
> @@ -229,7 +229,7 @@ static int nfsd_startup(unsigned short port, int nrservs)
> nfsd_up = true;
> return 0;
> out_lockd:
> - lockd_down();
> + lockd_down(&init_net);
> out_racache:
> nfsd_racache_shutdown();
> return ret;
> @@ -246,7 +246,7 @@ static void nfsd_shutdown(void)
> if (!nfsd_up)
> return;
> nfs4_state_shutdown();
> - lockd_down();
> + lockd_down(&init_net);
> nfsd_racache_shutdown();
> nfsd_up = false;
> }
> diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h
> index 11a966e..4d24d64 100644
> --- a/include/linux/lockd/bind.h
> +++ b/include/linux/lockd/bind.h
> @@ -54,7 +54,7 @@ extern void nlmclnt_done(struct nlm_host *host);
>
> extern int nlmclnt_proc(struct nlm_host *host, int cmd,
> struct file_lock *fl);
> -extern int lockd_up(void);
> -extern void lockd_down(void);
> +extern int lockd_up(struct net *net);
> +extern void lockd_down(struct net *net);
>
> #endif /* LINUX_LOCKD_BIND_H */
>
--
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^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] Lockd: pass network namespace to creation and destruction routines
@ 2012-04-11 16:12 ` Stanislav Kinsbursky
0 siblings, 0 replies; 7+ messages in thread
From: Stanislav Kinsbursky @ 2012-04-11 16:12 UTC (permalink / raw)
To: J. Bruce Fields
Cc: Trond.Myklebust, linux-nfs, Pavel Emelianov, neilb, netdev,
linux-kernel, James Bottomley, davem, devel
11.04.2012 20:11, J. Bruce Fields пишет:
> On Thu, Mar 29, 2012 at 06:54:33PM +0400, Stanislav Kinsbursky wrote:
>> v2: dereference of most probably already released nlm_host removed in
>> nlmclnt_done() and reclaimer().
>
> Did you want this in Trond's tree or mine?
>
Your tree is preferred since I'm working with it.
> --b.
>
>>
>> These routines are called from locks reclaimer() kernel thread. This thread
>> works in "init_net" network context and currently relays on persence on lockd
>> thread and it's per-net resources. Thus lockd_up() and lockd_down() can't relay
>> on current network context. So let's pass corrent one into them.
>>
>> Signed-off-by: Stanislav Kinsbursky<skinsbursky@parallels.com>
>>
>> Signed-off-by: Stanislav Kinsbursky<skinsbursky@parallels.com>
>>
>> ---
>> fs/lockd/clntlock.c | 13 ++++++++-----
>> fs/lockd/svc.c | 7 +++----
>> fs/nfsd/nfssvc.c | 6 +++---
>> include/linux/lockd/bind.h | 4 ++--
>> 4 files changed, 16 insertions(+), 14 deletions(-)
>>
>> diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
>> index ba1dc2e..ca0a080 100644
>> --- a/fs/lockd/clntlock.c
>> +++ b/fs/lockd/clntlock.c
>> @@ -56,7 +56,7 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
>> u32 nlm_version = (nlm_init->nfs_version == 2) ? 1 : 4;
>> int status;
>>
>> - status = lockd_up();
>> + status = lockd_up(nlm_init->net);
>> if (status< 0)
>> return ERR_PTR(status);
>>
>> @@ -65,7 +65,7 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
>> nlm_init->hostname, nlm_init->noresvport,
>> nlm_init->net);
>> if (host == NULL) {
>> - lockd_down();
>> + lockd_down(nlm_init->net);
>> return ERR_PTR(-ENOLCK);
>> }
>>
>> @@ -80,8 +80,10 @@ EXPORT_SYMBOL_GPL(nlmclnt_init);
>> */
>> void nlmclnt_done(struct nlm_host *host)
>> {
>> + struct net *net = host->net;
>> +
>> nlmclnt_release_host(host);
>> - lockd_down();
>> + lockd_down(net);
>> }
>> EXPORT_SYMBOL_GPL(nlmclnt_done);
>>
>> @@ -220,11 +222,12 @@ reclaimer(void *ptr)
>> struct nlm_wait *block;
>> struct file_lock *fl, *next;
>> u32 nsmstate;
>> + struct net *net = host->net;
>>
>> allow_signal(SIGKILL);
>>
>> down_write(&host->h_rwsem);
>> - lockd_up(); /* note: this cannot fail as lockd is already running */
>> + lockd_up(net); /* note: this cannot fail as lockd is already running */
>>
>> dprintk("lockd: reclaiming locks for host %s\n", host->h_name);
>>
>> @@ -275,6 +278,6 @@ restart:
>>
>> /* Release host handle after use */
>> nlmclnt_release_host(host);
>> - lockd_down();
>> + lockd_down(net);
>> return 0;
>> }
>> diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
>> index b34100e..ce4c80e 100644
>> --- a/fs/lockd/svc.c
>> +++ b/fs/lockd/svc.c
>> @@ -295,11 +295,10 @@ static void lockd_down_net(struct net *net)
>> /*
>> * Bring up the lockd process if it's not already up.
>> */
>> -int lockd_up(void)
>> +int lockd_up(struct net *net)
>> {
>> struct svc_serv *serv;
>> int error = 0;
>> - struct net *net = current->nsproxy->net_ns;
>>
>> mutex_lock(&nlmsvc_mutex);
>> /*
>> @@ -377,12 +376,12 @@ EXPORT_SYMBOL_GPL(lockd_up);
>> * Decrement the user count and bring down lockd if we're the last.
>> */
>> void
>> -lockd_down(void)
>> +lockd_down(struct net *net)
>> {
>> mutex_lock(&nlmsvc_mutex);
>> if (nlmsvc_users) {
>> if (--nlmsvc_users) {
>> - lockd_down_net(current->nsproxy->net_ns);
>> + lockd_down_net(net);
>> goto out;
>> }
>> } else {
>> diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
>> index fce472f..0f3e35b 100644
>> --- a/fs/nfsd/nfssvc.c
>> +++ b/fs/nfsd/nfssvc.c
>> @@ -220,7 +220,7 @@ static int nfsd_startup(unsigned short port, int nrservs)
>> ret = nfsd_init_socks(port);
>> if (ret)
>> goto out_racache;
>> - ret = lockd_up();
>> + ret = lockd_up(&init_net);
>> if (ret)
>> goto out_racache;
>> ret = nfs4_state_start();
>> @@ -229,7 +229,7 @@ static int nfsd_startup(unsigned short port, int nrservs)
>> nfsd_up = true;
>> return 0;
>> out_lockd:
>> - lockd_down();
>> + lockd_down(&init_net);
>> out_racache:
>> nfsd_racache_shutdown();
>> return ret;
>> @@ -246,7 +246,7 @@ static void nfsd_shutdown(void)
>> if (!nfsd_up)
>> return;
>> nfs4_state_shutdown();
>> - lockd_down();
>> + lockd_down(&init_net);
>> nfsd_racache_shutdown();
>> nfsd_up = false;
>> }
>> diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h
>> index 11a966e..4d24d64 100644
>> --- a/include/linux/lockd/bind.h
>> +++ b/include/linux/lockd/bind.h
>> @@ -54,7 +54,7 @@ extern void nlmclnt_done(struct nlm_host *host);
>>
>> extern int nlmclnt_proc(struct nlm_host *host, int cmd,
>> struct file_lock *fl);
>> -extern int lockd_up(void);
>> -extern void lockd_down(void);
>> +extern int lockd_up(struct net *net);
>> +extern void lockd_down(struct net *net);
>>
>> #endif /* LINUX_LOCKD_BIND_H */
>>
--
Best regards,
Stanislav Kinsbursky
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] Lockd: pass network namespace to creation and destruction routines
@ 2012-04-11 16:12 ` Stanislav Kinsbursky
0 siblings, 0 replies; 7+ messages in thread
From: Stanislav Kinsbursky @ 2012-04-11 16:12 UTC (permalink / raw)
To: J. Bruce Fields
Cc: Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA,
linux-nfs-u79uwXL29TY76Z2rM5mHXA, Pavel Emelianov,
neilb-l3A5Bk7waGM, netdev-u79uwXL29TY76Z2rM5mHXA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA, James Bottomley,
davem-fT/PcQaiUtIeIZ0/mPfg9Q, devel-GEFAQzZX7r8dnm+yROfE0A
11.04.2012 20:11, J. Bruce Fields пишет:
> On Thu, Mar 29, 2012 at 06:54:33PM +0400, Stanislav Kinsbursky wrote:
>> v2: dereference of most probably already released nlm_host removed in
>> nlmclnt_done() and reclaimer().
>
> Did you want this in Trond's tree or mine?
>
Your tree is preferred since I'm working with it.
> --b.
>
>>
>> These routines are called from locks reclaimer() kernel thread. This thread
>> works in "init_net" network context and currently relays on persence on lockd
>> thread and it's per-net resources. Thus lockd_up() and lockd_down() can't relay
>> on current network context. So let's pass corrent one into them.
>>
>> Signed-off-by: Stanislav Kinsbursky<skinsbursky-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
>>
>> Signed-off-by: Stanislav Kinsbursky<skinsbursky-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
>>
>> ---
>> fs/lockd/clntlock.c | 13 ++++++++-----
>> fs/lockd/svc.c | 7 +++----
>> fs/nfsd/nfssvc.c | 6 +++---
>> include/linux/lockd/bind.h | 4 ++--
>> 4 files changed, 16 insertions(+), 14 deletions(-)
>>
>> diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
>> index ba1dc2e..ca0a080 100644
>> --- a/fs/lockd/clntlock.c
>> +++ b/fs/lockd/clntlock.c
>> @@ -56,7 +56,7 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
>> u32 nlm_version = (nlm_init->nfs_version == 2) ? 1 : 4;
>> int status;
>>
>> - status = lockd_up();
>> + status = lockd_up(nlm_init->net);
>> if (status< 0)
>> return ERR_PTR(status);
>>
>> @@ -65,7 +65,7 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
>> nlm_init->hostname, nlm_init->noresvport,
>> nlm_init->net);
>> if (host == NULL) {
>> - lockd_down();
>> + lockd_down(nlm_init->net);
>> return ERR_PTR(-ENOLCK);
>> }
>>
>> @@ -80,8 +80,10 @@ EXPORT_SYMBOL_GPL(nlmclnt_init);
>> */
>> void nlmclnt_done(struct nlm_host *host)
>> {
>> + struct net *net = host->net;
>> +
>> nlmclnt_release_host(host);
>> - lockd_down();
>> + lockd_down(net);
>> }
>> EXPORT_SYMBOL_GPL(nlmclnt_done);
>>
>> @@ -220,11 +222,12 @@ reclaimer(void *ptr)
>> struct nlm_wait *block;
>> struct file_lock *fl, *next;
>> u32 nsmstate;
>> + struct net *net = host->net;
>>
>> allow_signal(SIGKILL);
>>
>> down_write(&host->h_rwsem);
>> - lockd_up(); /* note: this cannot fail as lockd is already running */
>> + lockd_up(net); /* note: this cannot fail as lockd is already running */
>>
>> dprintk("lockd: reclaiming locks for host %s\n", host->h_name);
>>
>> @@ -275,6 +278,6 @@ restart:
>>
>> /* Release host handle after use */
>> nlmclnt_release_host(host);
>> - lockd_down();
>> + lockd_down(net);
>> return 0;
>> }
>> diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
>> index b34100e..ce4c80e 100644
>> --- a/fs/lockd/svc.c
>> +++ b/fs/lockd/svc.c
>> @@ -295,11 +295,10 @@ static void lockd_down_net(struct net *net)
>> /*
>> * Bring up the lockd process if it's not already up.
>> */
>> -int lockd_up(void)
>> +int lockd_up(struct net *net)
>> {
>> struct svc_serv *serv;
>> int error = 0;
>> - struct net *net = current->nsproxy->net_ns;
>>
>> mutex_lock(&nlmsvc_mutex);
>> /*
>> @@ -377,12 +376,12 @@ EXPORT_SYMBOL_GPL(lockd_up);
>> * Decrement the user count and bring down lockd if we're the last.
>> */
>> void
>> -lockd_down(void)
>> +lockd_down(struct net *net)
>> {
>> mutex_lock(&nlmsvc_mutex);
>> if (nlmsvc_users) {
>> if (--nlmsvc_users) {
>> - lockd_down_net(current->nsproxy->net_ns);
>> + lockd_down_net(net);
>> goto out;
>> }
>> } else {
>> diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
>> index fce472f..0f3e35b 100644
>> --- a/fs/nfsd/nfssvc.c
>> +++ b/fs/nfsd/nfssvc.c
>> @@ -220,7 +220,7 @@ static int nfsd_startup(unsigned short port, int nrservs)
>> ret = nfsd_init_socks(port);
>> if (ret)
>> goto out_racache;
>> - ret = lockd_up();
>> + ret = lockd_up(&init_net);
>> if (ret)
>> goto out_racache;
>> ret = nfs4_state_start();
>> @@ -229,7 +229,7 @@ static int nfsd_startup(unsigned short port, int nrservs)
>> nfsd_up = true;
>> return 0;
>> out_lockd:
>> - lockd_down();
>> + lockd_down(&init_net);
>> out_racache:
>> nfsd_racache_shutdown();
>> return ret;
>> @@ -246,7 +246,7 @@ static void nfsd_shutdown(void)
>> if (!nfsd_up)
>> return;
>> nfs4_state_shutdown();
>> - lockd_down();
>> + lockd_down(&init_net);
>> nfsd_racache_shutdown();
>> nfsd_up = false;
>> }
>> diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h
>> index 11a966e..4d24d64 100644
>> --- a/include/linux/lockd/bind.h
>> +++ b/include/linux/lockd/bind.h
>> @@ -54,7 +54,7 @@ extern void nlmclnt_done(struct nlm_host *host);
>>
>> extern int nlmclnt_proc(struct nlm_host *host, int cmd,
>> struct file_lock *fl);
>> -extern int lockd_up(void);
>> -extern void lockd_down(void);
>> +extern int lockd_up(struct net *net);
>> +extern void lockd_down(struct net *net);
>>
>> #endif /* LINUX_LOCKD_BIND_H */
>>
--
Best regards,
Stanislav Kinsbursky
--
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^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] Lockd: pass network namespace to creation and destruction routines
@ 2012-04-11 21:32 ` J. Bruce Fields
0 siblings, 0 replies; 7+ messages in thread
From: J. Bruce Fields @ 2012-04-11 21:32 UTC (permalink / raw)
To: Stanislav Kinsbursky
Cc: Trond.Myklebust, linux-nfs, Pavel Emelianov, neilb, netdev,
linux-kernel, James Bottomley, davem, devel
On Wed, Apr 11, 2012 at 08:12:04PM +0400, Stanislav Kinsbursky wrote:
> 11.04.2012 20:11, J. Bruce Fields пишет:
> >On Thu, Mar 29, 2012 at 06:54:33PM +0400, Stanislav Kinsbursky wrote:
> >>v2: dereference of most probably already released nlm_host removed in
> >>nlmclnt_done() and reclaimer().
> >
> >Did you want this in Trond's tree or mine?
> >
>
> Your tree is preferred since I'm working with it.
OK, applying.--b.
>
> >--b.
> >
> >>
> >>These routines are called from locks reclaimer() kernel thread. This thread
> >>works in "init_net" network context and currently relays on persence on lockd
> >>thread and it's per-net resources. Thus lockd_up() and lockd_down() can't relay
> >>on current network context. So let's pass corrent one into them.
> >>
> >>Signed-off-by: Stanislav Kinsbursky<skinsbursky@parallels.com>
> >>
> >>Signed-off-by: Stanislav Kinsbursky<skinsbursky@parallels.com>
> >>
> >>---
> >> fs/lockd/clntlock.c | 13 ++++++++-----
> >> fs/lockd/svc.c | 7 +++----
> >> fs/nfsd/nfssvc.c | 6 +++---
> >> include/linux/lockd/bind.h | 4 ++--
> >> 4 files changed, 16 insertions(+), 14 deletions(-)
> >>
> >>diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
> >>index ba1dc2e..ca0a080 100644
> >>--- a/fs/lockd/clntlock.c
> >>+++ b/fs/lockd/clntlock.c
> >>@@ -56,7 +56,7 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
> >> u32 nlm_version = (nlm_init->nfs_version == 2) ? 1 : 4;
> >> int status;
> >>
> >>- status = lockd_up();
> >>+ status = lockd_up(nlm_init->net);
> >> if (status< 0)
> >> return ERR_PTR(status);
> >>
> >>@@ -65,7 +65,7 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
> >> nlm_init->hostname, nlm_init->noresvport,
> >> nlm_init->net);
> >> if (host == NULL) {
> >>- lockd_down();
> >>+ lockd_down(nlm_init->net);
> >> return ERR_PTR(-ENOLCK);
> >> }
> >>
> >>@@ -80,8 +80,10 @@ EXPORT_SYMBOL_GPL(nlmclnt_init);
> >> */
> >> void nlmclnt_done(struct nlm_host *host)
> >> {
> >>+ struct net *net = host->net;
> >>+
> >> nlmclnt_release_host(host);
> >>- lockd_down();
> >>+ lockd_down(net);
> >> }
> >> EXPORT_SYMBOL_GPL(nlmclnt_done);
> >>
> >>@@ -220,11 +222,12 @@ reclaimer(void *ptr)
> >> struct nlm_wait *block;
> >> struct file_lock *fl, *next;
> >> u32 nsmstate;
> >>+ struct net *net = host->net;
> >>
> >> allow_signal(SIGKILL);
> >>
> >> down_write(&host->h_rwsem);
> >>- lockd_up(); /* note: this cannot fail as lockd is already running */
> >>+ lockd_up(net); /* note: this cannot fail as lockd is already running */
> >>
> >> dprintk("lockd: reclaiming locks for host %s\n", host->h_name);
> >>
> >>@@ -275,6 +278,6 @@ restart:
> >>
> >> /* Release host handle after use */
> >> nlmclnt_release_host(host);
> >>- lockd_down();
> >>+ lockd_down(net);
> >> return 0;
> >> }
> >>diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
> >>index b34100e..ce4c80e 100644
> >>--- a/fs/lockd/svc.c
> >>+++ b/fs/lockd/svc.c
> >>@@ -295,11 +295,10 @@ static void lockd_down_net(struct net *net)
> >> /*
> >> * Bring up the lockd process if it's not already up.
> >> */
> >>-int lockd_up(void)
> >>+int lockd_up(struct net *net)
> >> {
> >> struct svc_serv *serv;
> >> int error = 0;
> >>- struct net *net = current->nsproxy->net_ns;
> >>
> >> mutex_lock(&nlmsvc_mutex);
> >> /*
> >>@@ -377,12 +376,12 @@ EXPORT_SYMBOL_GPL(lockd_up);
> >> * Decrement the user count and bring down lockd if we're the last.
> >> */
> >> void
> >>-lockd_down(void)
> >>+lockd_down(struct net *net)
> >> {
> >> mutex_lock(&nlmsvc_mutex);
> >> if (nlmsvc_users) {
> >> if (--nlmsvc_users) {
> >>- lockd_down_net(current->nsproxy->net_ns);
> >>+ lockd_down_net(net);
> >> goto out;
> >> }
> >> } else {
> >>diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
> >>index fce472f..0f3e35b 100644
> >>--- a/fs/nfsd/nfssvc.c
> >>+++ b/fs/nfsd/nfssvc.c
> >>@@ -220,7 +220,7 @@ static int nfsd_startup(unsigned short port, int nrservs)
> >> ret = nfsd_init_socks(port);
> >> if (ret)
> >> goto out_racache;
> >>- ret = lockd_up();
> >>+ ret = lockd_up(&init_net);
> >> if (ret)
> >> goto out_racache;
> >> ret = nfs4_state_start();
> >>@@ -229,7 +229,7 @@ static int nfsd_startup(unsigned short port, int nrservs)
> >> nfsd_up = true;
> >> return 0;
> >> out_lockd:
> >>- lockd_down();
> >>+ lockd_down(&init_net);
> >> out_racache:
> >> nfsd_racache_shutdown();
> >> return ret;
> >>@@ -246,7 +246,7 @@ static void nfsd_shutdown(void)
> >> if (!nfsd_up)
> >> return;
> >> nfs4_state_shutdown();
> >>- lockd_down();
> >>+ lockd_down(&init_net);
> >> nfsd_racache_shutdown();
> >> nfsd_up = false;
> >> }
> >>diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h
> >>index 11a966e..4d24d64 100644
> >>--- a/include/linux/lockd/bind.h
> >>+++ b/include/linux/lockd/bind.h
> >>@@ -54,7 +54,7 @@ extern void nlmclnt_done(struct nlm_host *host);
> >>
> >> extern int nlmclnt_proc(struct nlm_host *host, int cmd,
> >> struct file_lock *fl);
> >>-extern int lockd_up(void);
> >>-extern void lockd_down(void);
> >>+extern int lockd_up(struct net *net);
> >>+extern void lockd_down(struct net *net);
> >>
> >> #endif /* LINUX_LOCKD_BIND_H */
> >>
>
>
> --
> Best regards,
> Stanislav Kinsbursky
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] Lockd: pass network namespace to creation and destruction routines
@ 2012-04-11 21:32 ` J. Bruce Fields
0 siblings, 0 replies; 7+ messages in thread
From: J. Bruce Fields @ 2012-04-11 21:32 UTC (permalink / raw)
To: Stanislav Kinsbursky
Cc: Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA,
linux-nfs-u79uwXL29TY76Z2rM5mHXA, Pavel Emelianov,
neilb-l3A5Bk7waGM, netdev-u79uwXL29TY76Z2rM5mHXA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA, James Bottomley,
davem-fT/PcQaiUtIeIZ0/mPfg9Q, devel-GEFAQzZX7r8dnm+yROfE0A
On Wed, Apr 11, 2012 at 08:12:04PM +0400, Stanislav Kinsbursky wrote:
> 11.04.2012 20:11, J. Bruce Fields пишет:
> >On Thu, Mar 29, 2012 at 06:54:33PM +0400, Stanislav Kinsbursky wrote:
> >>v2: dereference of most probably already released nlm_host removed in
> >>nlmclnt_done() and reclaimer().
> >
> >Did you want this in Trond's tree or mine?
> >
>
> Your tree is preferred since I'm working with it.
OK, applying.--b.
>
> >--b.
> >
> >>
> >>These routines are called from locks reclaimer() kernel thread. This thread
> >>works in "init_net" network context and currently relays on persence on lockd
> >>thread and it's per-net resources. Thus lockd_up() and lockd_down() can't relay
> >>on current network context. So let's pass corrent one into them.
> >>
> >>Signed-off-by: Stanislav Kinsbursky<skinsbursky-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
> >>
> >>Signed-off-by: Stanislav Kinsbursky<skinsbursky-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
> >>
> >>---
> >> fs/lockd/clntlock.c | 13 ++++++++-----
> >> fs/lockd/svc.c | 7 +++----
> >> fs/nfsd/nfssvc.c | 6 +++---
> >> include/linux/lockd/bind.h | 4 ++--
> >> 4 files changed, 16 insertions(+), 14 deletions(-)
> >>
> >>diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
> >>index ba1dc2e..ca0a080 100644
> >>--- a/fs/lockd/clntlock.c
> >>+++ b/fs/lockd/clntlock.c
> >>@@ -56,7 +56,7 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
> >> u32 nlm_version = (nlm_init->nfs_version == 2) ? 1 : 4;
> >> int status;
> >>
> >>- status = lockd_up();
> >>+ status = lockd_up(nlm_init->net);
> >> if (status< 0)
> >> return ERR_PTR(status);
> >>
> >>@@ -65,7 +65,7 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
> >> nlm_init->hostname, nlm_init->noresvport,
> >> nlm_init->net);
> >> if (host == NULL) {
> >>- lockd_down();
> >>+ lockd_down(nlm_init->net);
> >> return ERR_PTR(-ENOLCK);
> >> }
> >>
> >>@@ -80,8 +80,10 @@ EXPORT_SYMBOL_GPL(nlmclnt_init);
> >> */
> >> void nlmclnt_done(struct nlm_host *host)
> >> {
> >>+ struct net *net = host->net;
> >>+
> >> nlmclnt_release_host(host);
> >>- lockd_down();
> >>+ lockd_down(net);
> >> }
> >> EXPORT_SYMBOL_GPL(nlmclnt_done);
> >>
> >>@@ -220,11 +222,12 @@ reclaimer(void *ptr)
> >> struct nlm_wait *block;
> >> struct file_lock *fl, *next;
> >> u32 nsmstate;
> >>+ struct net *net = host->net;
> >>
> >> allow_signal(SIGKILL);
> >>
> >> down_write(&host->h_rwsem);
> >>- lockd_up(); /* note: this cannot fail as lockd is already running */
> >>+ lockd_up(net); /* note: this cannot fail as lockd is already running */
> >>
> >> dprintk("lockd: reclaiming locks for host %s\n", host->h_name);
> >>
> >>@@ -275,6 +278,6 @@ restart:
> >>
> >> /* Release host handle after use */
> >> nlmclnt_release_host(host);
> >>- lockd_down();
> >>+ lockd_down(net);
> >> return 0;
> >> }
> >>diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
> >>index b34100e..ce4c80e 100644
> >>--- a/fs/lockd/svc.c
> >>+++ b/fs/lockd/svc.c
> >>@@ -295,11 +295,10 @@ static void lockd_down_net(struct net *net)
> >> /*
> >> * Bring up the lockd process if it's not already up.
> >> */
> >>-int lockd_up(void)
> >>+int lockd_up(struct net *net)
> >> {
> >> struct svc_serv *serv;
> >> int error = 0;
> >>- struct net *net = current->nsproxy->net_ns;
> >>
> >> mutex_lock(&nlmsvc_mutex);
> >> /*
> >>@@ -377,12 +376,12 @@ EXPORT_SYMBOL_GPL(lockd_up);
> >> * Decrement the user count and bring down lockd if we're the last.
> >> */
> >> void
> >>-lockd_down(void)
> >>+lockd_down(struct net *net)
> >> {
> >> mutex_lock(&nlmsvc_mutex);
> >> if (nlmsvc_users) {
> >> if (--nlmsvc_users) {
> >>- lockd_down_net(current->nsproxy->net_ns);
> >>+ lockd_down_net(net);
> >> goto out;
> >> }
> >> } else {
> >>diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
> >>index fce472f..0f3e35b 100644
> >>--- a/fs/nfsd/nfssvc.c
> >>+++ b/fs/nfsd/nfssvc.c
> >>@@ -220,7 +220,7 @@ static int nfsd_startup(unsigned short port, int nrservs)
> >> ret = nfsd_init_socks(port);
> >> if (ret)
> >> goto out_racache;
> >>- ret = lockd_up();
> >>+ ret = lockd_up(&init_net);
> >> if (ret)
> >> goto out_racache;
> >> ret = nfs4_state_start();
> >>@@ -229,7 +229,7 @@ static int nfsd_startup(unsigned short port, int nrservs)
> >> nfsd_up = true;
> >> return 0;
> >> out_lockd:
> >>- lockd_down();
> >>+ lockd_down(&init_net);
> >> out_racache:
> >> nfsd_racache_shutdown();
> >> return ret;
> >>@@ -246,7 +246,7 @@ static void nfsd_shutdown(void)
> >> if (!nfsd_up)
> >> return;
> >> nfs4_state_shutdown();
> >>- lockd_down();
> >>+ lockd_down(&init_net);
> >> nfsd_racache_shutdown();
> >> nfsd_up = false;
> >> }
> >>diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h
> >>index 11a966e..4d24d64 100644
> >>--- a/include/linux/lockd/bind.h
> >>+++ b/include/linux/lockd/bind.h
> >>@@ -54,7 +54,7 @@ extern void nlmclnt_done(struct nlm_host *host);
> >>
> >> extern int nlmclnt_proc(struct nlm_host *host, int cmd,
> >> struct file_lock *fl);
> >>-extern int lockd_up(void);
> >>-extern void lockd_down(void);
> >>+extern int lockd_up(struct net *net);
> >>+extern void lockd_down(struct net *net);
> >>
> >> #endif /* LINUX_LOCKD_BIND_H */
> >>
>
>
> --
> Best regards,
> Stanislav Kinsbursky
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^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2012-04-11 21:32 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-03-29 14:54 [PATCH v2] Lockd: pass network namespace to creation and destruction routines Stanislav Kinsbursky
2012-04-11 16:11 ` J. Bruce Fields
2012-04-11 16:11 ` J. Bruce Fields
2012-04-11 16:12 ` Stanislav Kinsbursky
2012-04-11 16:12 ` Stanislav Kinsbursky
2012-04-11 21:32 ` J. Bruce Fields
2012-04-11 21:32 ` J. Bruce Fields
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