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| Started by | "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> |
|---|---|
| First post | 2017-06-09 03:50 +0200 |
| Last post | 2017-06-09 08:20 +0200 |
| Articles | 2 — 2 participants |
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[GIT PULL rcu/urgent] Allow SRCU readers in irq handlers for KVM "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-06-09 03:50 +0200
Re: [GIT PULL rcu/urgent] Allow SRCU readers in irq handlers for KVM Ingo Molnar <mingo@kernel.org> - 2017-06-09 08:20 +0200
| From | "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> |
|---|---|
| Date | 2017-06-09 03:50 +0200 |
| Subject | [GIT PULL rcu/urgent] Allow SRCU readers in irq handlers for KVM |
| Message-ID | <tQhdL-3w1-3@gated-at.bofh.it> |
Hello, Ingo,
This series enables srcu_read_lock() and srcu_read_unlock to be used from
interrupt handlers, which fixes a bug in KVM's use of SRCU in delivery
of interrupts to guest OSes. These patches have been exposed to 0day
Test Robot and to -next testing, have been tested by the KVM folks,
and were posted to LKML:
http://lkml.kernel.org/r/20170605220919.GA27820@linux.vnet.ibm.com
These changes, based on v4.2-rc4, are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/urgent
for you to fetch changes up to 1123a6041654e8f889014659593bad4168e542c2:
srcu: Allow use of Classic SRCU from both process and interrupt context (2017-06-08 08:25:19 -0700)
----------------------------------------------------------------
Paolo Bonzini (2):
srcu: Allow use of Tiny/Tree SRCU from both process and interrupt context
srcu: Allow use of Classic SRCU from both process and interrupt context
include/linux/srcu.h | 2 --
kernel/rcu/srcu.c | 5 ++---
kernel/rcu/srcutiny.c | 7 ++++---
kernel/rcu/srcutree.c | 5 ++---
4 files changed, 8 insertions(+), 11 deletions(-)
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| From | Ingo Molnar <mingo@kernel.org> |
|---|---|
| Date | 2017-06-09 08:20 +0200 |
| Message-ID | <tQlr3-6oe-7@gated-at.bofh.it> |
| In reply to | #1661857 |
* Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote: > Hello, Ingo, > > This series enables srcu_read_lock() and srcu_read_unlock to be used from > interrupt handlers, which fixes a bug in KVM's use of SRCU in delivery > of interrupts to guest OSes. These patches have been exposed to 0day > Test Robot and to -next testing, have been tested by the KVM folks, > and were posted to LKML: > > http://lkml.kernel.org/r/20170605220919.GA27820@linux.vnet.ibm.com > > These changes, based on v4.2-rc4, are available in the git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/urgent > > for you to fetch changes up to 1123a6041654e8f889014659593bad4168e542c2: > > srcu: Allow use of Classic SRCU from both process and interrupt context (2017-06-08 08:25:19 -0700) > > ---------------------------------------------------------------- > Paolo Bonzini (2): > srcu: Allow use of Tiny/Tree SRCU from both process and interrupt context > srcu: Allow use of Classic SRCU from both process and interrupt context > > include/linux/srcu.h | 2 -- > kernel/rcu/srcu.c | 5 ++--- > kernel/rcu/srcutiny.c | 7 ++++--- > kernel/rcu/srcutree.c | 5 ++--- > 4 files changed, 8 insertions(+), 11 deletions(-) Pulled, thanks a lot Paul! Ingo
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