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Commit bb280ab4 authored by wang di's avatar wang di Committed by Greg Kroah-Hartman
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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: default avatarwang di <di.wang@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6586
Reviewed-on: http://review.whamcloud.com/14747


Reviewed-by: default avatarLai Siyao <lai.siyao@intel.com>
Reviewed-by: default avatarJames Simmons <uja.ornl@yahoo.com>
Reviewed-by: default avatarOleg Drokin <oleg.drokin@intel.com>
Signed-off-by: default avatarJames Simmons <jsimmons@infradead.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent dac91f85

drivers/staging/lustre/lustre/lmv/lmv_obd.c

+1 −0
Original line number Diff line number Diff line
@@ -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;

}



/**

drivers/staging/lustre/lustre/mdc/lproc_mdc.c

+37 −0
Original line number Diff line number Diff line
@@ -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,