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| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2017-08-29 10:20:38 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-08-29 15:34:44 -0600 |
| commit | 9de7e14a1a9c6bc4f9be6ccd9b951341a80dbd52 (patch) | |
| tree | 5255e73d42a6d601041f1e82056b02da77fe9c8a /include/linux/drbd_genl.h | |
| parent | c200d9868707150abd37853cb341b54f75461208 (diff) | |
| download | linux-9de7e14a1a9c6bc4f9be6ccd9b951341a80dbd52.tar.gz linux-9de7e14a1a9c6bc4f9be6ccd9b951341a80dbd52.tar.bz2 linux-9de7e14a1a9c6bc4f9be6ccd9b951341a80dbd52.zip | |
drbd: new disk-option disable-write-same
Some backend devices claim to support write-same,
but would fail actual write-same requests.
Allow to set (or toggle) whether or not DRBD tries to support write-same.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/drbd_genl.h')
| -rw-r--r-- | include/linux/drbd_genl.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/drbd_genl.h b/include/linux/drbd_genl.h index 2896f93808ae..4e6d4d4c7056 100644 --- a/include/linux/drbd_genl.h +++ b/include/linux/drbd_genl.h @@ -132,7 +132,8 @@ GENL_struct(DRBD_NLA_DISK_CONF, 3, disk_conf, __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) __flg_field_def(23, 0 /* OPTIONAL */, al_updates, DRBD_AL_UPDATES_DEF) - __flg_field_def(24, 0 /* OPTIONAL */, discard_zeroes_if_aligned, DRBD_DISCARD_ZEROES_IF_ALIGNED) + __flg_field_def(24, 0 /* OPTIONAL */, discard_zeroes_if_aligned, DRBD_DISCARD_ZEROES_IF_ALIGNED_DEF) + __flg_field_def(26, 0 /* OPTIONAL */, disable_write_same, DRBD_DISABLE_WRITE_SAME_DEF) ) GENL_struct(DRBD_NLA_RESOURCE_OPTS, 4, res_opts, |