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| author | Milosz Tanski <milosz@adfin.com> | 2013-09-06 16:41:20 +0000 |
|---|---|---|
| committer | Milosz Tanski <milosz@adfin.com> | 2013-09-06 16:41:20 +0000 |
| commit | cd0a2df681ec2af45f50c555c2a39dc92a4dff71 (patch) | |
| tree | 35d2278a9494582025f3dac08feb2266adef6a4d /drivers/usb/host/ehci-sched.c | |
| parent | c35455791c1131e7ccbf56ea6fbdd562401c2ce2 (diff) | |
| parent | 5a6f282a2052bb13171b53f03b34501cf72c33f1 (diff) | |
| download | blackbird-op-linux-cd0a2df681ec2af45f50c555c2a39dc92a4dff71.tar.gz blackbird-op-linux-cd0a2df681ec2af45f50c555c2a39dc92a4dff71.zip | |
Merge tag 'fscache-fixes-for-ceph' into wip-fscache
Patches for Ceph FS-Cache support
Diffstat (limited to 'drivers/usb/host/ehci-sched.c')
| -rw-r--r-- | drivers/usb/host/ehci-sched.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index f80d0330d548..8e3c878f38cf 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -1391,21 +1391,20 @@ iso_stream_schedule ( /* Behind the scheduling threshold? */ if (unlikely(start < next)) { + unsigned now2 = (now - base) & (mod - 1); /* USB_ISO_ASAP: Round up to the first available slot */ if (urb->transfer_flags & URB_ISO_ASAP) start += (next - start + period - 1) & -period; /* - * Not ASAP: Use the next slot in the stream. If - * the entire URB falls before the threshold, fail. + * Not ASAP: Use the next slot in the stream, + * no matter what. */ - else if (start + span - period < next) { - ehci_dbg(ehci, "iso urb late %p (%u+%u < %u)\n", + else if (start + span - period < now2) { + ehci_dbg(ehci, "iso underrun %p (%u+%u < %u)\n", urb, start + base, - span - period, next + base); - status = -EXDEV; - goto fail; + span - period, now2 + base); } } |
