07cbcd5089
While investigating https://github.com/zfsonlinux/zfs/issues/6425 I noticed that ioctl ZIOs were not setting zio->io_delay correctly. They would set the start time in zio_vdev_io_start(), but never set the end time in zio_vdev_io_done(), since ioctls skip it and go straight to zio_done(). This was causing spurious "delayed IO" events to appear, which would eventually get rate-limited and displayed as "Missed events" messages in zed. To get around the problem, this patch only sets zio->io_delay for read and write ZIOs, since that's all we care about anyway. Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tony Hutter <hutter2@llnl.gov> Closes #6425 Closes #6440 |
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