linux/arch/s390
David Hildenbrand 67f03de5f0 s390/time: avoid races when updating tb_update_count
The increment might not be atomic and we're not holding the
timekeeper_lock. Therefore we might lose an update to count, resulting in
VDSO being trapped in a loop. As other archs also simply update the
values and count doesn't seem to have an impact on reloading of these
values in VDSO code, let's just remove the update of tb_update_count.

Suggested-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2016-08-29 11:04:58 +02:00
..
appldata mm: move most file-based accounting to the node 2016-07-28 16:07:41 -07:00
boot s390: clarify compressed image code path 2016-08-08 15:41:31 +02:00
configs s390/config: make the vector optimized crc function builtin 2016-08-08 15:41:32 +02:00
crypto s390/crc32-vx: Fix checksum calculation for small sizes 2016-08-08 15:41:31 +02:00
hypfs - ARM: GICv3 ITS emulation and various fixes. Removal of the old 2016-08-02 16:11:27 -04:00
include Merge branch 's390forkvm' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux 2016-08-26 16:34:19 +02:00
kernel s390/time: avoid races when updating tb_update_count 2016-08-29 11:04:58 +02:00
kvm Merge branch 's390forkvm' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux 2016-08-26 16:34:19 +02:00
lib Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2016-08-16 15:50:22 -07:00
mm s390/mm: merge local / non-local IDTE helper 2016-08-24 09:23:56 +02:00
net s390/bpf: fix recache skb->data/hlen for skb_vlan_push/pop 2016-05-19 09:14:27 +02:00
numa s390/numa: only set possible nodes within node_possible_map 2016-07-31 05:28:00 -04:00
oprofile s390/oprofile: remove hardware sampler support 2016-06-28 09:32:22 +02:00
pci s390/pci: add zpci_report_error interface 2016-08-24 09:23:56 +02:00
tools s390/facilities: do not generate DWORDS define anymore 2016-07-31 05:27:59 -04:00
defconfig s390/config: make the vector optimized crc function builtin 2016-08-08 15:41:32 +02:00
Kbuild s390/numa: add core infrastructure 2015-08-03 18:40:25 +02:00
Kconfig virtio/vhost: fixes and cleanups for 4.8 2016-08-11 14:10:23 -07:00
Kconfig.debug arch: consolidate CONFIG_STRICT_DEVM in lib/Kconfig.debug 2016-01-09 06:30:49 -08:00
Makefile s390/facilities: add helper tool to generate facility lists 2015-12-18 14:59:20 +01:00