Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Tejun Heo 3f91687e6e block: don't merge across cgroup boundaries if blkcg is enabled ... commit 6b2b04590b51aa4cf395fcd185ce439cab5961dc upstream. blk-iocost and iolatency are cgroup aware rq-qos policies but they didn't disable merges across different cgroups. This obviously can lead to accounting and control errors but more importantly to priority inversions - e.g. an IO which belongs to a higher priority cgroup or IO class may end up getting throttled incorrectly because it gets merged to an IO issued from a low priority cgroup. Fix it by adding blk_cgroup_mergeable() which is called from merge paths and rejects cross-cgroup and cross-issue_as_root merges. Signed-off-by: Tejun Heo <tj@kernel.org> Fixes: d706751215 ("block: introduce blk-iolatency io controller") Cc: stable@vger.kernel.org # v4.19+ Cc: Josef Bacik <jbacik@fb.com> Link: https://lore.kernel.org/r/Yi/eE/6zFNyWJ+qd@slm.duckdns.org Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-04-15 14:18:01 +02:00
..
acpi	ACPICA: actypes.h: Expand the ACPI_ACCESS_ definitions	2022-01-27 09:19:45 +01:00
asm-generic	module/ftrace: handle patchable-function-entry	2022-02-23 11:59:56 +01:00
clocksource
crypto
drm
dt-bindings
keys
kvm
linux	block: don't merge across cgroup boundaries if blkcg is enabled	2022-04-15 14:18:01 +02:00
math-emu
media
misc
net	udp: call udp_encap_enable for v6 sockets when enabling encap	2022-04-15 14:18:01 +02:00
pcmcia
ras
rdma
scsi
soc
sound
target
trace
uapi	HID: add mapping for KEY_ALL_APPLICATIONS	2022-03-08 19:07:50 +01:00
vdso
video
xen	xen/gnttab: fix gnttab_end_foreign_access() without page specified	2022-03-11 11:22:39 +01:00