s390/pci: enforce fmb page boundary rule

Browse source

[ Upstream commit 80c544ded2 ]

The function measurement block must not cross a page boundary. Ensure
that by raising the alignment requirement to the smallest power of 2
larger than the size of the fmb.

Fixes: d0b088531 ("s390/pci: performance statistics and debug infrastructure")
Cc: stable@vger.kernel.org # v3.8+
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

...

This commit is contained in:

Sebastian Ott 2016-03-14 15:47:23 +01:00 • committed by Sasha Levin

parent bbd5f23b1e

commit 1ee3901b99

2 changed files with 5 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

arch/s390/include/asm/pci.h

View file

5

arch/s390/pci/pci.c

View file