* [PATCH v5 0/5] Early node associativity
@ 2019-12-16 14:38 Srikar Dronamraju
0 siblings, 0 replies; 2+ messages in thread
From: Srikar Dronamraju @ 2019-12-16 14:38 UTC (permalink / raw)
To: Michael Ellerman
Cc: Nathan Lynch, Srikar Dronamraju, Nicholas Piggin, Abdul Haleem,
Satheesh Rajendran, linuxppc-dev
Note: (Only patch 3 changes from v3)
Abdul reported a warning on a shared lpar.
"WARNING: workqueue cpumask: online intersect > possible intersect".
This is because per node workqueue possible mask is set very early in the
boot process even before the system was querying the home node
associativity. However per node workqueue online cpumask gets updated
dynamically. Hence there is a chance when per node workqueue online cpumask
is a superset of per node workqueue possible mask.
Link for v4: https://patchwork.ozlabs.org/patch/1161979
Changelog: v4->v5:
- Rebased to v5.5-rc2
Link for v3: http://lkml.kernel.org/r/20190906135020.19772-1-srikar@linux.vnet.ibm.com
Changelog: v3->v4
- Added a warning as suggested by Nathan Lynch.
Link for v2: http://lkml.kernel.org/r/20190829055023.6171-1-srikar@linux.vnet.ibm.com
Changelog: v2->v3
- Handled comments from Nathan Lynch.
Link for v1: https://patchwork.ozlabs.org/patch/1151658
Changelog: v1->v2
- Handled comments from Nathan Lynch.
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Cc: Nathan Lynch <nathanl@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Srikar Dronamraju (5):
powerpc/vphn: Check for error from hcall_vphn
powerpc/numa: Handle extra hcall_vphn error cases
powerpc/numa: Use cpu node map of first sibling thread
powerpc/numa: Early request for home node associativity
powerpc/numa: Remove late request for home node associativity
arch/powerpc/include/asm/topology.h | 4 --
arch/powerpc/kernel/smp.c | 5 --
arch/powerpc/mm/numa.c | 99 ++++++++++++++++++++-------
arch/powerpc/platforms/pseries/vphn.c | 3 +-
4 files changed, 77 insertions(+), 34 deletions(-)
--
2.18.1
^ permalink raw reply [flat|nested] 2+ messages in thread
* [PATCH v5 0/5] Early node associativity
@ 2019-12-16 14:48 Srikar Dronamraju
0 siblings, 0 replies; 2+ messages in thread
From: Srikar Dronamraju @ 2019-12-16 14:48 UTC (permalink / raw)
To: Michael Ellerman
Cc: Nathan Lynch, Srikar Dronamraju, Nicholas Piggin, Abdul Haleem,
Satheesh Rajendran, linuxppc-dev
Note: (Only patch 3 changes from v3)
Abdul reported a warning on a shared lpar.
"WARNING: workqueue cpumask: online intersect > possible intersect".
This is because per node workqueue possible mask is set very early in the
boot process even before the system was querying the home node
associativity. However per node workqueue online cpumask gets updated
dynamically. Hence there is a chance when per node workqueue online cpumask
is a superset of per node workqueue possible mask.
Link for v4: https://patchwork.ozlabs.org/patch/1161979
Changelog: v4->v5:
- Rebased to v5.5-rc2
Link for v3: http://lkml.kernel.org/r/20190906135020.19772-1-srikar@linux.vnet.ibm.com
Changelog: v3->v4
- Added a warning as suggested by Nathan Lynch.
Link for v2: http://lkml.kernel.org/r/20190829055023.6171-1-srikar@linux.vnet.ibm.com
Changelog: v2->v3
- Handled comments from Nathan Lynch.
Link for v1: https://patchwork.ozlabs.org/patch/1151658
Changelog: v1->v2
- Handled comments from Nathan Lynch.
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Cc: Nathan Lynch <nathanl@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Srikar Dronamraju (5):
powerpc/vphn: Check for error from hcall_vphn
powerpc/numa: Handle extra hcall_vphn error cases
powerpc/numa: Use cpu node map of first sibling thread
powerpc/numa: Early request for home node associativity
powerpc/numa: Remove late request for home node associativity
arch/powerpc/include/asm/topology.h | 4 --
arch/powerpc/kernel/smp.c | 5 --
arch/powerpc/mm/numa.c | 99 ++++++++++++++++++++-------
arch/powerpc/platforms/pseries/vphn.c | 3 +-
4 files changed, 77 insertions(+), 34 deletions(-)
--
2.18.1
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2019-12-16 14:57 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-12-16 14:38 [PATCH v5 0/5] Early node associativity Srikar Dronamraju
2019-12-16 14:48 Srikar Dronamraju
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).