Messages in this thread Patch in this message | | | Date | Mon, 26 Oct 2015 14:47:21 +0900 (KST) | From | Jiri Kosina <> | Subject | [PATCH] xen-blkback: clear PF_NOFREEZE for xen_blkif_schedule() |
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From: Jiri Kosina <jkosina@suse.cz>
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> --- 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 af3caa3..bb65f7c 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -597,6 +597,7 @@ int xen_blkif_schedule(void *arg) xen_blkif_get(blkif); + set_freezable(); while (!kthread_should_stop()) { if (unlikely(vbd->size != vbd_sz(vbd))) xen_vbd_resize(blkif); -- Jiri Kosina SUSE Labs
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