]> err.no Git - linux-2.6/commit
projects / linux-2.6 / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 61a564f) | patch
[POWERPC] Remove barriers from the SLB shadow buffer update
authorMichael Neuling <mikey@neuling.org>
Fri, 24 Aug 2007 06:58:37 +0000 (16:58 +1000)
committerPaul Mackerras <paulus@samba.org>
Wed, 19 Sep 2007 04:40:54 +0000 (14:40 +1000)
commit00efee7d5d0d7888aafbf0d2de76943ee8aca47a
tree672112cc5404b389f0547b4f5428ec06ca1ca122tree | snapshot
parent61a564fd2e7ab13ab11a6ce8305433baacf344efcommit | diff
[POWERPC] Remove barriers from the SLB shadow buffer update

After talking to an IBM POWER hypervisor (PHYP) design and development
guy, there seems to be no need for memory barriers when updating the SLB
shadow buffer provided we only update it from the current CPU, which we
do.

Also, these guys see no need in the future for these barriers.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
arch/powerpc/kernel/entry_64.S diff | blob | history
arch/powerpc/mm/slb.c diff | blob | history
Linux 2.6 source tree