BLK_FEAT_NOWAIT
lim->features |= BLK_FEAT_IO_STAT | BLK_FEAT_NOWAIT;
if (!(b->features & BLK_FEAT_NOWAIT))
t->features &= ~BLK_FEAT_NOWAIT;
BLK_FEAT_NOWAIT,
limits->features &= ~BLK_FEAT_NOWAIT;
limits->features |= BLK_FEAT_IO_STAT | BLK_FEAT_NOWAIT | BLK_FEAT_POLL;
BLK_FEAT_IO_STAT | BLK_FEAT_NOWAIT;
lim.features |= BLK_FEAT_IO_STAT | BLK_FEAT_NOWAIT |
return bdev->bd_disk->queue->limits.features & BLK_FEAT_NOWAIT;