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(parent: 0ce790e) | patch
rcu: create new rcu_access_index() and use in mce
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Fri, 1 Apr 2011 14:15:14 +0000 (07:15 -0700)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Fri, 1 Apr 2011 14:27:31 +0000 (07:27 -0700)
commita4dd99250dc49031e6a92a895dbcc230a4832083
tree3d0b6f45620f66044400ea14a6af019bf0af67e7tree | snapshot (tar.gz zip)
parent0ce790e7d736cedc563e1fb4e998babf5a4dbc3dcommit | diff
rcu: create new rcu_access_index() and use in mce

The MCE subsystem needs to sample an RCU-protected index outside of
any protection for that index.  If this was a pointer, we would use
rcu_access_pointer(), but there is no corresponding rcu_access_index().
This commit therefore creates an rcu_access_index() and applies it
to MCE.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Zdenek Kabelac <zkabelac@redhat.com>
arch/x86/kernel/cpu/mcheck/mce.c diff | blob | blame | history
include/linux/rcupdate.h diff | blob | blame | history