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| author |   Philipp Reisner <philipp.reisner@linbit.com> | 2016-06-14 00:26:14 +0200 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2016-06-13 21:43:04 -0600 |
| commit | a5ca66c419410b4a26ab47b120d5424bd1d33700 (patch) | |
| tree | e8bcf9de1ec9ec9b51f2863c3e1ab9a7286d33ef /include/linux/drbd_genl.h | |
| parent | drbd: Implement handling of thinly provisioned storage on resync target nodes (diff) | |
| download | linux-dev-a5ca66c419410b4a26ab47b120d5424bd1d33700.tar.xz linux-dev-a5ca66c419410b4a26ab47b120d5424bd1d33700.zip | |
drbd: Introduce new disk config option rs-discard-granularity
As long as the value is 0 the feature is disabled. With setting
it to a positive value, DRBD limits and aligns its resync requests
to the rs-discard-granularity setting. If the sync source detects
all zeros in such a block, the resync target discards the range
on disk.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/drbd_genl.h')
| -rw-r--r-- | include/linux/drbd_genl.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/drbd_genl.h b/include/linux/drbd_genl.h index 2d0e5ad5de9d..ab649d8e9ed2 100644 --- a/include/linux/drbd_genl.h +++ b/include/linux/drbd_genl.h @@ -123,14 +123,14 @@ GENL_struct(DRBD_NLA_DISK_CONF, 3, disk_conf, __u32_field_def(13, DRBD_GENLA_F_MANDATORY, c_fill_target, DRBD_C_FILL_TARGET_DEF) __u32_field_def(14, DRBD_GENLA_F_MANDATORY, c_max_rate, DRBD_C_MAX_RATE_DEF) __u32_field_def(15, DRBD_GENLA_F_MANDATORY, c_min_rate, DRBD_C_MIN_RATE_DEF) + __u32_field_def(20, DRBD_GENLA_F_MANDATORY, disk_timeout, DRBD_DISK_TIMEOUT_DEF) + __u32_field_def(21, 0 /* OPTIONAL */, read_balancing, DRBD_READ_BALANCING_DEF) + __u32_field_def(25, 0 /* OPTIONAL */, rs_discard_granularity, DRBD_RS_DISCARD_GRANULARITY_DEF) __flg_field_def(16, DRBD_GENLA_F_MANDATORY, disk_barrier, DRBD_DISK_BARRIER_DEF) __flg_field_def(17, DRBD_GENLA_F_MANDATORY, disk_flushes, DRBD_DISK_FLUSHES_DEF) __flg_field_def(18, DRBD_GENLA_F_MANDATORY, disk_drain, DRBD_DISK_DRAIN_DEF) __flg_field_def(19, DRBD_GENLA_F_MANDATORY, md_flushes, DRBD_MD_FLUSHES_DEF) - __u32_field_def(20, DRBD_GENLA_F_MANDATORY, disk_timeout, DRBD_DISK_TIMEOUT_DEF) - __u32_field_def(21, 0 /* OPTIONAL */, read_balancing, DRBD_READ_BALANCING_DEF) - /* 9: __u32_field_def(22, DRBD_GENLA_F_MANDATORY, unplug_watermark, DRBD_UNPLUG_WATERMARK_DEF) */ __flg_field_def(23, 0 /* OPTIONAL */, al_updates, DRBD_AL_UPDATES_DEF) ) |