From dd3b19d1129cc06622825e7b7175a880e3046cec Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Mon, 26 Oct 2015 14:47:21 +0900 Subject: [PATCH] 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 Signed-off-by: Konrad Rzeszutek Wilk (cherry picked from commit a6e7af1288eeb7fca8361356998d31a92a291531) Signed-off-by: Daniel Kiper --- drivers/block/xen-blkback/blkback.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 9885f2dd739d7..522a49122b6fc 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; -- 2.49.0