Files
mirror_zfs/module/zfs
David Hedberg 9b17d5a37d Wait for txg sync if the last DRR_FREEOBJECTS might result in a hole
If we receive a DRR_FREEOBJECTS as the first entry in an object range,
this might end up producing a hole if the freed objects were the
only existing objects in the block.

If the txg starts syncing before we've processed any following
DRR_OBJECT records, this leads to a possible race where the backing
arc_buf_t gets its psize set to 0 in the arc_write_ready() callback
while still being referenced from a dirty record in the open txg.

To prevent this, we insert a txg_wait_synced call if the first
record in the range was a DRR_FREEOBJECTS that actually
resulted in one or more freed objects.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: David Hedberg <david.hedberg@findity.com>
Sponsored by: Findity AB
Closes #11893
Closes #14358
2023-05-09 12:57:56 -07:00
..
2022-07-26 10:10:37 -07:00
2021-06-09 13:05:34 -07:00
2023-03-24 11:55:36 -05:00
2020-08-20 10:30:06 -07:00
2019-07-26 10:54:14 -07:00
2023-03-02 14:37:07 -08:00
2023-03-02 14:37:07 -08:00
2021-06-09 13:05:34 -07:00
2023-03-07 09:07:58 -08:00
2020-11-02 11:51:12 -08:00
2022-09-26 14:55:27 -07:00
2023-03-29 10:40:49 -07:00
2020-06-18 12:21:25 -07:00
2017-10-11 16:54:48 -04:00
2022-02-16 17:58:56 -08:00
2020-11-13 13:51:51 -08:00
2019-06-19 09:48:12 -07:00
2020-07-29 16:35:33 -07:00
2022-02-16 17:58:56 -08:00
2020-06-18 12:21:25 -07:00
2020-06-18 12:21:25 -07:00
2021-06-24 13:12:36 -07:00
2021-06-10 10:50:16 -07:00
2022-09-21 16:12:14 -07:00
2019-10-09 10:36:03 -07:00
2021-11-02 09:50:30 -07:00
2021-11-02 09:50:30 -07:00
2020-11-13 13:51:51 -08:00
2023-03-02 14:37:07 -08:00
2023-03-02 14:37:07 -08:00
2020-06-18 12:21:25 -07:00
2019-09-02 17:56:41 -07:00
2020-10-02 17:44:10 -07:00
2020-06-18 12:20:38 -07:00
2022-12-01 12:39:43 -08:00
2021-11-02 09:50:30 -07:00
2021-01-20 21:27:30 -08:00
2023-03-02 14:37:07 -08:00
2020-06-18 12:21:25 -07:00
2023-03-02 14:37:07 -08:00