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| author | Jiri Kosina <jkosina@suse.cz> | 2015-10-26 14:47:21 +0900 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2016-01-04 12:21:24 -0500 |
| commit | a6e7af1288eeb7fca8361356998d31a92a291531 (patch) | |
| tree | 320068fcc79f1165213ecbbd526c84d0938d31cf /drivers/block | |
| parent | 2d0382fac17cef20d507a0211b82e0942b2ab271 (diff) | |
| download | blackbird-op-linux-a6e7af1288eeb7fca8361356998d31a92a291531.tar.gz blackbird-op-linux-a6e7af1288eeb7fca8361356998d31a92a291531.zip | |
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')
| -rw-r--r-- | drivers/block/xen-blkback/blkback.c | 1 |
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; |
