summaryrefslogtreecommitdiffstats
path: root/drivers/block/xen-blkback
diff options
context:
space:
mode:
authorJiri Kosina <jkosina@suse.cz>2015-10-26 14:47:21 +0900
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2016-01-04 12:21:24 -0500
commita6e7af1288eeb7fca8361356998d31a92a291531 (patch)
tree320068fcc79f1165213ecbbd526c84d0938d31cf /drivers/block/xen-blkback
parent2d0382fac17cef20d507a0211b82e0942b2ab271 (diff)
downloadlinux-a6e7af1288eeb7fca8361356998d31a92a291531.tar.bz2
xen-blkback: clear PF_NOFREEZE for xen_blkif_schedule()
xen_blkif_schedule() kthread calls try_to_freeze() at the beginning of every attempt to purge the LRU. This operation can't ever succeed though, as the kthread hasn't marked itself as freezable. Before (hopefully eventually) kthread freezing gets converted to fileystem freezing, we'd rather mark xen_blkif_schedule() freezable (as it can generate I/O during suspend). Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/block/xen-blkback')
-rw-r--r--drivers/block/xen-blkback/blkback.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index a00d6c6c2880..99b479f330af 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -613,6 +613,7 @@ int xen_blkif_schedule(void *arg)
xen_blkif_get(blkif);
+ set_freezable();
while (!kthread_should_stop()) {
if (try_to_freeze())
continue;