From 9a51ab1c1b3c1e21f076cdd571bbe6ca7d1b504c Mon Sep 17 00:00:00 2001 From: Philipp Reisner Date: Mon, 20 Feb 2012 21:53:28 +0100 Subject: drbd: New disk option al-updates By disabling al-updates one might increase performace. The price for that is that in case a crashed primary (that had al-updates disabled) is reintegraded, it will receive a full-resync instead of a bitmap based resync. Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- include/linux/drbd.h | 1 + include/linux/drbd_genl.h | 3 +++ include/linux/drbd_limits.h | 1 + 3 files changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/drbd.h b/include/linux/drbd.h index 1e86156c10f7..36ae7dd28d90 100644 --- a/include/linux/drbd.h +++ b/include/linux/drbd.h @@ -338,6 +338,7 @@ extern const char *drbd_set_st_err_str(enum drbd_state_rv); #define MDF_PEER_OUT_DATED (1 << 5) #define MDF_CRASHED_PRIMARY (1 << 6) #define MDF_AL_CLEAN (1 << 7) +#define MDF_AL_DISABLED (1 << 8) enum drbd_uuid_index { UI_CURRENT, diff --git a/include/linux/drbd_genl.h b/include/linux/drbd_genl.h index 826008f297fe..92ec4b50a885 100644 --- a/include/linux/drbd_genl.h +++ b/include/linux/drbd_genl.h @@ -130,6 +130,8 @@ GENL_struct(DRBD_NLA_DISK_CONF, 3, disk_conf, __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) ) GENL_struct(DRBD_NLA_RESOURCE_OPTS, 4, res_opts, @@ -168,6 +170,7 @@ GENL_struct(DRBD_NLA_NET_CONF, 5, net_conf, __flg_field_def(27, DRBD_GENLA_F_MANDATORY, always_asbp, DRBD_ALWAYS_ASBP_DEF) __flg_field(28, DRBD_GENLA_F_MANDATORY | DRBD_F_INVARIANT, tentative) __flg_field_def(29, DRBD_GENLA_F_MANDATORY, use_rle, DRBD_USE_RLE_DEF) + /* 9: __u32_field_def(30, DRBD_GENLA_F_MANDATORY, fencing_policy, DRBD_FENCING_DEF) */ ) GENL_struct(DRBD_NLA_SET_ROLE_PARMS, 6, set_role_parms, diff --git a/include/linux/drbd_limits.h b/include/linux/drbd_limits.h index 17ef66a5c114..1fa19c5f5e64 100644 --- a/include/linux/drbd_limits.h +++ b/include/linux/drbd_limits.h @@ -210,6 +210,7 @@ #define DRBD_DISK_DRAIN_DEF 1 #define DRBD_MD_FLUSHES_DEF 1 #define DRBD_TCP_CORK_DEF 1 +#define DRBD_AL_UPDATES_DEF 1 #define DRBD_ALLOW_TWO_PRIMARIES_DEF 0 #define DRBD_ALWAYS_ASBP_DEF 0 -- cgit v1.2.1