This is a note to let you know that I've just added the patch titled
IB/hfi1: Allocate context data on memory node
to the 4.9-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:
ib-hfi1-allocate-context-data-on-memory-node.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Thu Oct 19 15:04:02 CEST 2017
From: Sebastian Sanchez <sebastian.sanchez@xxxxxxxxx>
Date: Wed, 8 Feb 2017 05:26:37 -0800
Subject: IB/hfi1: Allocate context data on memory node
From: Sebastian Sanchez <sebastian.sanchez@xxxxxxxxx>
[ Upstream commit b448bf9a0df6093dbadac36979a55ce4e012a677 ]
There are some memory allocation calls in hfi1_create_ctxtdata()
that do not use the numa function parameter. This
can cause cache lines to be filled over QPI.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@xxxxxxxxx>
Signed-off-by: Sebastian Sanchez <sebastian.sanchez@xxxxxxxxx>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@xxxxxxxxx>
Signed-off-by: Doug Ledford <dledford@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/infiniband/hw/hfi1/init.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
--- a/drivers/infiniband/hw/hfi1/init.c
+++ b/drivers/infiniband/hw/hfi1/init.c
@@ -297,14 +297,15 @@ struct hfi1_ctxtdata *hfi1_create_ctxtda
* The resulting value will be rounded down to the closest
* multiple of dd->rcv_entries.group_size.
*/
- rcd->egrbufs.buffers = kcalloc(rcd->egrbufs.count,
- sizeof(*rcd->egrbufs.buffers),
- GFP_KERNEL);
+ rcd->egrbufs.buffers = kzalloc_node(
+ rcd->egrbufs.count * sizeof(*rcd->egrbufs.buffers),
+ GFP_KERNEL, numa);
if (!rcd->egrbufs.buffers)
goto bail;
- rcd->egrbufs.rcvtids = kcalloc(rcd->egrbufs.count,
- sizeof(*rcd->egrbufs.rcvtids),
- GFP_KERNEL);
+ rcd->egrbufs.rcvtids = kzalloc_node(
+ rcd->egrbufs.count *
+ sizeof(*rcd->egrbufs.rcvtids),
+ GFP_KERNEL, numa);
if (!rcd->egrbufs.rcvtids)
goto bail;
rcd->egrbufs.size = eager_buffer_size;
@@ -322,8 +323,8 @@ struct hfi1_ctxtdata *hfi1_create_ctxtda
rcd->egrbufs.rcvtid_size = HFI1_MAX_EAGER_BUFFER_SIZE;
if (ctxt < dd->first_user_ctxt) { /* N/A for PSM contexts */
- rcd->opstats = kzalloc(sizeof(*rcd->opstats),
- GFP_KERNEL);
+ rcd->opstats = kzalloc_node(sizeof(*rcd->opstats),
+ GFP_KERNEL, numa);
if (!rcd->opstats)
goto bail;
}
Patches currently in stable-queue which might be from sebastian.sanchez@xxxxxxxxx are
queue-4.9/ib-hfi1-allocate-context-data-on-memory-node.patch