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cd730bd6b2
When a da or ada device dissappears, outstanding IOs fail with ENXIO, not EIO. The check for EIO was probably copied from Illumos, where that is indeed the correct errno. Without this change, pulling a busy drive from a zpool would usually turn it into UNAVAIL, even though pulling an idle drive would turn it into REMOVED. With this change, it is REMOVED every time. Also, vdev_geom_io_intr shouldn't do zfs_post_remove, because that results in devd getting two resource.fs.zfs.removed events. The comment said that the event had to be sent directly instead of through the async removal thread because "the DE engine is using this information to discard prevoius I/O errors". However, the fact that vdev_geom_io_intr was never actually sending the events until now, and that vdev_geom_orphan never sent them at all, and that vdev_geom_orphan usually gets called about 2 seconds after the actual removal, means that FreeBSD's userland can cope with a late event just fine. Approved by: ken (mentor) Sponsored by: Spectra Logic Corporation MFC after: 4 weeks |
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