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4045 zfs write throttle & i/o scheduler performance work
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>


2165                 }
2166         }
2167 
2168 done:
2169         zio_checksum_verified(zio);
2170 
2171         if (zio->io_error == 0 && spa_writeable(zio->io_spa) &&
2172             (unexpected_errors || (zio->io_flags & ZIO_FLAG_RESILVER))) {
2173                 /*
2174                  * Use the good data we have in hand to repair damaged children.
2175                  */
2176                 for (c = 0; c < rm->rm_cols; c++) {
2177                         rc = &rm->rm_col[c];
2178                         cvd = vd->vdev_child[rc->rc_devidx];
2179 
2180                         if (rc->rc_error == 0)
2181                                 continue;
2182 
2183                         zio_nowait(zio_vdev_child_io(zio, NULL, cvd,
2184                             rc->rc_offset, rc->rc_data, rc->rc_size,
2185                             ZIO_TYPE_WRITE, zio->io_priority,
2186                             ZIO_FLAG_IO_REPAIR | (unexpected_errors ?
2187                             ZIO_FLAG_SELF_HEAL : 0), NULL, NULL));
2188                 }
2189         }
2190 }
2191 
2192 static void
2193 vdev_raidz_state_change(vdev_t *vd, int faulted, int degraded)
2194 {
2195         if (faulted > vd->vdev_nparity)
2196                 vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN,
2197                     VDEV_AUX_NO_REPLICAS);
2198         else if (degraded + faulted != 0)
2199                 vdev_set_state(vd, B_FALSE, VDEV_STATE_DEGRADED, VDEV_AUX_NONE);
2200         else
2201                 vdev_set_state(vd, B_FALSE, VDEV_STATE_HEALTHY, VDEV_AUX_NONE);
2202 }
2203 
2204 vdev_ops_t vdev_raidz_ops = {
2205         vdev_raidz_open,



2165                 }
2166         }
2167 
2168 done:
2169         zio_checksum_verified(zio);
2170 
2171         if (zio->io_error == 0 && spa_writeable(zio->io_spa) &&
2172             (unexpected_errors || (zio->io_flags & ZIO_FLAG_RESILVER))) {
2173                 /*
2174                  * Use the good data we have in hand to repair damaged children.
2175                  */
2176                 for (c = 0; c < rm->rm_cols; c++) {
2177                         rc = &rm->rm_col[c];
2178                         cvd = vd->vdev_child[rc->rc_devidx];
2179 
2180                         if (rc->rc_error == 0)
2181                                 continue;
2182 
2183                         zio_nowait(zio_vdev_child_io(zio, NULL, cvd,
2184                             rc->rc_offset, rc->rc_data, rc->rc_size,
2185                             ZIO_TYPE_WRITE, ZIO_PRIORITY_ASYNC_WRITE,
2186                             ZIO_FLAG_IO_REPAIR | (unexpected_errors ?
2187                             ZIO_FLAG_SELF_HEAL : 0), NULL, NULL));
2188                 }
2189         }
2190 }
2191 
2192 static void
2193 vdev_raidz_state_change(vdev_t *vd, int faulted, int degraded)
2194 {
2195         if (faulted > vd->vdev_nparity)
2196                 vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN,
2197                     VDEV_AUX_NO_REPLICAS);
2198         else if (degraded + faulted != 0)
2199                 vdev_set_state(vd, B_FALSE, VDEV_STATE_DEGRADED, VDEV_AUX_NONE);
2200         else
2201                 vdev_set_state(vd, B_FALSE, VDEV_STATE_HEALTHY, VDEV_AUX_NONE);
2202 }
2203 
2204 vdev_ops_t vdev_raidz_ops = {
2205         vdev_raidz_open,