* [PATCH] sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in softirq context
@ 2015-04-21 14:30 Sowmini Varadhan
2015-04-21 20:19 ` David Miller
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: Sowmini Varadhan @ 2015-04-21 14:30 UTC (permalink / raw)
To: sparclinux
Since it is possible for vnet_event_napi to end up doing
vnet_control_pkt_engine -> ... -> vnet_send_attr ->
vnet_port_alloc_tx_ring -> ldc_alloc_exp_dring -> kzalloc()
(i.e., in softirq context), kzalloc() should be called with
GFP_ATOMIC from ldc_alloc_exp_dring.
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
---
arch/sparc/kernel/ldc.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c
index d2ae0f7..7d3ca30 100644
--- a/arch/sparc/kernel/ldc.c
+++ b/arch/sparc/kernel/ldc.c
@@ -2290,7 +2290,7 @@ void *ldc_alloc_exp_dring(struct ldc_channel *lp, unsigned int len,
if (len & (8UL - 1))
return ERR_PTR(-EINVAL);
- buf = kzalloc(len, GFP_KERNEL);
+ buf = kzalloc(len, GFP_ATOMIC);
if (!buf)
return ERR_PTR(-ENOMEM);
--
1.7.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH] sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in softirq context
2015-04-21 14:30 [PATCH] sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in softirq context Sowmini Varadhan
@ 2015-04-21 20:19 ` David Miller
2015-07-04 3:04 ` Patch "sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in" has been added to the 3.10-stable tree gregkh
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: David Miller @ 2015-04-21 20:19 UTC (permalink / raw)
To: sparclinux
From: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Date: Tue, 21 Apr 2015 10:30:41 -0400
> Since it is possible for vnet_event_napi to end up doing
> vnet_control_pkt_engine -> ... -> vnet_send_attr ->
> vnet_port_alloc_tx_ring -> ldc_alloc_exp_dring -> kzalloc()
> (i.e., in softirq context), kzalloc() should be called with
> GFP_ATOMIC from ldc_alloc_exp_dring.
>
> Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Applied and queued up for -stable, thanks.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Patch "sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in" has been added to the 3.10-stable tree
2015-04-21 14:30 [PATCH] sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in softirq context Sowmini Varadhan
2015-04-21 20:19 ` David Miller
@ 2015-07-04 3:04 ` gregkh
2015-07-04 3:04 ` Patch "sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in" has been added to the 3.14-stable tree gregkh
2015-07-04 3:05 ` Patch "sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in" has been added to the 4.0-stable tree gregkh
3 siblings, 0 replies; 5+ messages in thread
From: gregkh @ 2015-07-04 3:04 UTC (permalink / raw)
To: sowmini.varadhan, gregkh; +Cc: stable, stable-commits
This is a note to let you know that I've just added the patch titled
sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in
to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
sparc-Use-GFP_ATOMIC-in-ldc_alloc_exp_dring-as-it-can-be-called-in-softirq-context.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From patchwork Tue Apr 21 14:30:41 2015
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in
softirq context
From: Sowmini Varadhan <sowmini.varadhan@oracle.com>
X-Patchwork-Id: 463148
Message-Id: <1429626641-199974-1-git-send-email-sowmini.varadhan@oracle.com>
To: sowmini.varadhan@oracle.com, sparclinux@vger.kernel.org
Cc: david.stevens@oracle.com, davem@davemloft.net
Date: Tue, 21 Apr 2015 10:30:41 -0400
From: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Upstream commit 671d773297969bebb1732e1cdc1ec03aa53c6be2
Since it is possible for vnet_event_napi to end up doing
vnet_control_pkt_engine -> ... -> vnet_send_attr ->
vnet_port_alloc_tx_ring -> ldc_alloc_exp_dring -> kzalloc()
(i.e., in softirq context), kzalloc() should be called with
GFP_ATOMIC from ldc_alloc_exp_dring.
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/sparc/kernel/ldc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/sparc/kernel/ldc.c
+++ b/arch/sparc/kernel/ldc.c
@@ -2306,7 +2306,7 @@ void *ldc_alloc_exp_dring(struct ldc_cha
if (len & (8UL - 1))
return ERR_PTR(-EINVAL);
- buf = kzalloc(len, GFP_KERNEL);
+ buf = kzalloc(len, GFP_ATOMIC);
if (!buf)
return ERR_PTR(-ENOMEM);
Patches currently in stable-queue which might be from sowmini.varadhan@oracle.com are
queue-3.10/sparc-Use-GFP_ATOMIC-in-ldc_alloc_exp_dring-as-it-can-be-called-in-softirq-context.patch
^ permalink raw reply [flat|nested] 5+ messages in thread
* Patch "sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in" has been added to the 3.14-stable tree
2015-04-21 14:30 [PATCH] sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in softirq context Sowmini Varadhan
2015-04-21 20:19 ` David Miller
2015-07-04 3:04 ` Patch "sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in" has been added to the 3.10-stable tree gregkh
@ 2015-07-04 3:04 ` gregkh
2015-07-04 3:05 ` Patch "sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in" has been added to the 4.0-stable tree gregkh
3 siblings, 0 replies; 5+ messages in thread
From: gregkh @ 2015-07-04 3:04 UTC (permalink / raw)
To: sowmini.varadhan, gregkh; +Cc: stable, stable-commits
This is a note to let you know that I've just added the patch titled
sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
sparc-Use-GFP_ATOMIC-in-ldc_alloc_exp_dring-as-it-can-be-called-in-softirq-context.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From patchwork Tue Apr 21 14:30:41 2015
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in
softirq context
From: Sowmini Varadhan <sowmini.varadhan@oracle.com>
X-Patchwork-Id: 463148
Message-Id: <1429626641-199974-1-git-send-email-sowmini.varadhan@oracle.com>
To: sowmini.varadhan@oracle.com, sparclinux@vger.kernel.org
Cc: david.stevens@oracle.com, davem@davemloft.net
Date: Tue, 21 Apr 2015 10:30:41 -0400
From: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Upstream commit 671d773297969bebb1732e1cdc1ec03aa53c6be2
Since it is possible for vnet_event_napi to end up doing
vnet_control_pkt_engine -> ... -> vnet_send_attr ->
vnet_port_alloc_tx_ring -> ldc_alloc_exp_dring -> kzalloc()
(i.e., in softirq context), kzalloc() should be called with
GFP_ATOMIC from ldc_alloc_exp_dring.
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/sparc/kernel/ldc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/sparc/kernel/ldc.c
+++ b/arch/sparc/kernel/ldc.c
@@ -2307,7 +2307,7 @@ void *ldc_alloc_exp_dring(struct ldc_cha
if (len & (8UL - 1))
return ERR_PTR(-EINVAL);
- buf = kzalloc(len, GFP_KERNEL);
+ buf = kzalloc(len, GFP_ATOMIC);
if (!buf)
return ERR_PTR(-ENOMEM);
Patches currently in stable-queue which might be from sowmini.varadhan@oracle.com are
queue-3.14/sparc-Use-GFP_ATOMIC-in-ldc_alloc_exp_dring-as-it-can-be-called-in-softirq-context.patch
^ permalink raw reply [flat|nested] 5+ messages in thread
* Patch "sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in" has been added to the 4.0-stable tree
2015-04-21 14:30 [PATCH] sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in softirq context Sowmini Varadhan
` (2 preceding siblings ...)
2015-07-04 3:04 ` Patch "sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in" has been added to the 3.14-stable tree gregkh
@ 2015-07-04 3:05 ` gregkh
3 siblings, 0 replies; 5+ messages in thread
From: gregkh @ 2015-07-04 3:05 UTC (permalink / raw)
To: sowmini.varadhan, gregkh; +Cc: stable, stable-commits
This is a note to let you know that I've just added the patch titled
sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in
to the 4.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
sparc-Use-GFP_ATOMIC-in-ldc_alloc_exp_dring-as-it-can-be-called-in-softirq-context.patch
and it can be found in the queue-4.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From patchwork Tue Apr 21 14:30:41 2015
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in
softirq context
From: Sowmini Varadhan <sowmini.varadhan@oracle.com>
X-Patchwork-Id: 463148
Message-Id: <1429626641-199974-1-git-send-email-sowmini.varadhan@oracle.com>
To: sowmini.varadhan@oracle.com, sparclinux@vger.kernel.org
Cc: david.stevens@oracle.com, davem@davemloft.net
Date: Tue, 21 Apr 2015 10:30:41 -0400
From: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Upstream commit 671d773297969bebb1732e1cdc1ec03aa53c6be2
Since it is possible for vnet_event_napi to end up doing
vnet_control_pkt_engine -> ... -> vnet_send_attr ->
vnet_port_alloc_tx_ring -> ldc_alloc_exp_dring -> kzalloc()
(i.e., in softirq context), kzalloc() should be called with
GFP_ATOMIC from ldc_alloc_exp_dring.
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/sparc/kernel/ldc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/sparc/kernel/ldc.c
+++ b/arch/sparc/kernel/ldc.c
@@ -2313,7 +2313,7 @@ void *ldc_alloc_exp_dring(struct ldc_cha
if (len & (8UL - 1))
return ERR_PTR(-EINVAL);
- buf = kzalloc(len, GFP_KERNEL);
+ buf = kzalloc(len, GFP_ATOMIC);
if (!buf)
return ERR_PTR(-ENOMEM);
Patches currently in stable-queue which might be from sowmini.varadhan@oracle.com are
queue-4.0/sparc-Use-GFP_ATOMIC-in-ldc_alloc_exp_dring-as-it-can-be-called-in-softirq-context.patch
^ permalink raw reply [flat|nested] 5+ messages in thread
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2015-04-21 14:30 [PATCH] sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in softirq context Sowmini Varadhan
2015-04-21 20:19 ` David Miller
2015-07-04 3:04 ` Patch "sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in" has been added to the 3.10-stable tree gregkh
2015-07-04 3:04 ` Patch "sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in" has been added to the 3.14-stable tree gregkh
2015-07-04 3:05 ` Patch "sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in" has been added to the 4.0-stable tree gregkh
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