From bb280ab4c879acdd50d7979b00d81c0e8e2dcc36 Mon Sep 17 00:00:00 2001 From: wang di Date: Thu, 27 Oct 2016 18:11:50 -0400 Subject: [PATCH] staging: lustre: mdc: deactive MDT permanently Add active proc entry for MDC, and mark MDC to be inactive once the MDC is deactivated. Signed-off-by: wang di Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6586 Reviewed-on: http://review.whamcloud.com/14747 Reviewed-by: Lai Siyao Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lustre/lmv/lmv_obd.c | 1 + drivers/staging/lustre/lustre/mdc/lproc_mdc.c | 37 +++++++++++++++++++++++++++ 2 files changed, 38 insertions(+) diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c index 7a8d1c8..12e8b1e 100644 --- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c +++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c @@ -62,6 +62,7 @@ static void lmv_activate_target(struct lmv_obd *lmv, tgt->ltd_active = activate; lmv->desc.ld_active_tgt_count += (activate ? 1 : -1); + tgt->ltd_exp->exp_obd->obd_inactive = !activate; } /** diff --git a/drivers/staging/lustre/lustre/mdc/lproc_mdc.c b/drivers/staging/lustre/lustre/mdc/lproc_mdc.c index 5fdee9e..76b9afc 100644 --- a/drivers/staging/lustre/lustre/mdc/lproc_mdc.c +++ b/drivers/staging/lustre/lustre/mdc/lproc_mdc.c @@ -36,6 +36,42 @@ #include "../include/lprocfs_status.h" #include "mdc_internal.h" +static ssize_t active_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + struct obd_device *dev = container_of(kobj, struct obd_device, + obd_kobj); + + return sprintf(buf, "%u\n", !dev->u.cli.cl_import->imp_deactive); +} + +static ssize_t active_store(struct kobject *kobj, struct attribute *attr, + const char *buffer, size_t count) +{ + struct obd_device *dev = container_of(kobj, struct obd_device, + obd_kobj); + unsigned long val; + int rc; + + rc = kstrtoul(buffer, 10, &val); + if (rc) + return rc; + + if (val < 0 || val > 1) + return -ERANGE; + + /* opposite senses */ + if (dev->u.cli.cl_import->imp_deactive == val) { + rc = ptlrpc_set_import_active(dev->u.cli.cl_import, val); + if (rc) + count = rc; + } else { + CDEBUG(D_CONFIG, "activate %lu: ignoring repeat request\n", val); + } + return count; +} +LUSTRE_RW_ATTR(active); + static ssize_t max_rpcs_in_flight_show(struct kobject *kobj, struct attribute *attr, char *buf) @@ -153,6 +189,7 @@ static struct lprocfs_vars lprocfs_mdc_obd_vars[] = { }; static struct attribute *mdc_attrs[] = { + &lustre_attr_active.attr, &lustre_attr_max_rpcs_in_flight.attr, &lustre_attr_max_mod_rpcs_in_flight.attr, &lustre_attr_max_pages_per_rpc.attr, -- 2.7.4