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65ca2c1eb9
The dmu_objset_remap_indirects_impl() logic depends on dnode_hold() returning ENOENT for dnodes which will be freed and should be skipped. This behavior can only be relied upon when taking a new hold and while the caller has an open transaction. This ensures that the open txg cannot advance and that a concurrent free will end up in the same txg (which is critical). Relying on an existing hold will not prevent dnode_free() from succeeding. The solution is to take an additional dnode_hold() after assigning the transaction. This ensures the remap will never dirty the dnode if it was freed while we were waiting in dmu_tx_assign(, TXG_WAIT). Randomly set zfs_object_remap_one_indirect_delay_ms in ztest. This increases the likelihood of an operation racing with the remap. Converted from ticks to milliseconds. Reviewed by: Matt Ahrens <mahrens@delphix.com> Reviewed by: Tom Caputi <tcaputi@datto.com> Reviewed by: Igor Kozhukhov <igor@dilos.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8215 |
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| .. | ||
| arc_summary | ||
| arcstat | ||
| dbufstat | ||
| fsck_zfs | ||
| mount_zfs | ||
| raidz_test | ||
| vdev_id | ||
| zdb | ||
| zed | ||
| zfs | ||
| zgenhostid | ||
| zhack | ||
| zinject | ||
| zpool | ||
| zstreamdump | ||
| ztest | ||
| zvol_id | ||
| Makefile.am | ||