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Another day, another rcu_dereference warning. (#640673)

This commit is contained in:
Dave Jones 2010-10-06 14:09:52 -04:00
parent 2fe1e8e397
commit a09b817bc1
2 changed files with 23 additions and 2 deletions
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9
kernel.spec
View File

@ -701,9 +701,10 @@ Patch2915: lirc-staging-2.6.36.patch
Patch2917: hdpvr-ir-enable.patch
Patch2918: linux-2.6-v4l-dvb-ir-core-update-2.patch
Patch3000: linux-2.6-via-velocity-dma-fix.patch
Patch2950: linux-2.6-via-velocity-dma-fix.patch
Patch3010: linux-2.6-rcu-sched-warning.patch
Patch3000: linux-2.6-rcu-sched-warning.patch
Patch3010: linux-2.6-rcu-netpoll.patch
# NFSv4
@ -1344,6 +1345,7 @@ ApplyPatch linux-2.6-via-velocity-dma-fix.patch
# silence another rcu_reference warning
ApplyPatch linux-2.6-rcu-sched-warning.patch
ApplyPatch linux-2.6-rcu-netpoll.patch
# Patches headed upstream
ApplyPatch disable-i8042-check-on-apple-mac.patch
@ -1975,6 +1977,9 @@ fi
# and build.
%changelog
* Wed Oct 06 2010 Dave Jones <davej@redhat.com>
- Another day, another rcu_dereference warning. (#640673)
* Mon Oct 04 2010 Kyle McMartin <kyle@redhat.com>
- Build intel_idle into the kernel, so they get loaded by default. In
later kernels, it is no longer modular, so it isn't an issue. Noticed

16
linux-2.6-rcu-netpoll.patch Normal file
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@ -0,0 +1,16 @@
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 9fbc54a..435c502 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -454,7 +454,7 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
* Makes rcu_dereference_check() do the dirty work.
*/
#define rcu_dereference_bh(p) \
- rcu_dereference_check(p, rcu_read_lock_bh_held())
+ rcu_dereference_check(p, rcu_read_lock_bh_held() || irqs_disabled())
/**
* rcu_dereference_sched - fetch RCU-protected pointer, checking for RCU-sched