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Commit 81fe7883 authored by Dean Nelson's avatar Dean Nelson Committed by Linus Torvalds
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sgi-xp: add 'jiffies' to reserved page's timestamp name 



Rename XPC's reserved page's timestamp member to reflect the units of time
involved.

Signed-off-by: default avatarDean Nelson <dcn@sgi.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 04de7418

drivers/misc/sgi-xp/xpc.h

+3 −3
Original line number Diff line number Diff line
@@ -87,7 +87,7 @@ 
 *     which are partition specific (vars part). These are setup by XPC.

 *     (Local partition's vars pointers are xpc_vars and xpc_vars_part.)

 *

 * Note: Until 'stamp' is set non-zero, the partition XPC code has not been

 * Note: Until 'ts_jiffies' is set non-zero, the partition XPC code has not been

 *       initialized.

 */

struct xpc_rsvd_page {
@@ -101,7 +101,7 @@ struct xpc_rsvd_page { 
		u64 vars_pa;	/* physical address of struct xpc_vars */

		u64 activate_mq_gpa;	/* global phys address of activate_mq */

	} sn;

	unsigned long stamp;	/* time when reserved page was setup by XPC */

	unsigned long ts_jiffies; /* timestamp when rsvd pg was setup by XPC */

	u64 pad2[10];		/* align to last u64 in 2nd 64-byte cacheline */

	u64 SAL_nasids_size;	/* SAL: size of each nasid mask in bytes */

};
@@ -534,7 +534,7 @@ struct xpc_partition { 
	/* XPC HB infrastructure */



	u8 remote_rp_version;	/* version# of partition's rsvd pg */

	unsigned long remote_rp_stamp; /* time when rsvd pg was initialized */

	unsigned long remote_rp_ts_jiffies; /* timestamp when rsvd pg setup */

	u64 remote_rp_pa;	/* phys addr of partition's rsvd pg */

	u64 last_heartbeat;	/* HB at last read */

	u32 activate_IRQ_rcvd;	/* IRQs since activation */

drivers/misc/sgi-xp/xpc_main.c

+4 −4
Original line number Diff line number Diff line
@@ -862,8 +862,8 @@ xpc_do_exit(enum xp_retval reason) 
	DBUG_ON(xpc_any_partition_engaged());

	DBUG_ON(xpc_any_hbs_allowed() != 0);



	/* indicate to others that our reserved page is uninitialized */

	xpc_rsvd_page->stamp = 0;

	/* a zero timestamp indicates our rsvd page is not initialized */

	xpc_rsvd_page->ts_jiffies = 0;



	if (reason == xpUnloading) {

		(void)unregister_die_notifier(&xpc_die_notifier);
@@ -1152,8 +1152,8 @@ xpc_init(void) 


	/* initialization was not successful */

out_3:

	/* indicate to others that our reserved page is uninitialized */

	xpc_rsvd_page->stamp = 0;

	/* a zero timestamp indicates our rsvd page is not initialized */

	xpc_rsvd_page->ts_jiffies = 0;



	(void)unregister_die_notifier(&xpc_die_notifier);

	(void)unregister_reboot_notifier(&xpc_reboot_notifier);

drivers/misc/sgi-xp/xpc_partition.c

+7 −7
Original line number Diff line number Diff line
@@ -133,7 +133,7 @@ xpc_setup_rsvd_page(void) 
{

	struct xpc_rsvd_page *rp;

	u64 rp_pa;

	unsigned long new_stamp;

	unsigned long new_ts_jiffies;



	/* get the local reserved page's address */
@@ -183,10 +183,10 @@ xpc_setup_rsvd_page(void) 
	 * This signifies to the remote partition that our reserved

	 * page is initialized.

	 */

	new_stamp = jiffies;

	if (new_stamp == 0 || new_stamp == rp->stamp)

		new_stamp++;

	rp->stamp = new_stamp;

	new_ts_jiffies = jiffies;

	if (new_ts_jiffies == 0 || new_ts_jiffies == rp->ts_jiffies)

		new_ts_jiffies++;

	rp->ts_jiffies = new_ts_jiffies;



	return rp;

}
@@ -225,8 +225,8 @@ xpc_get_remote_rp(int nasid, unsigned long *discovered_nasids, 
			discovered_nasids[l] |= remote_part_nasids[l];

	}



	/* see if the reserved page has been set up by XPC */

	if (remote_rp->stamp == 0)

	/* zero timestamp indicates the reserved page has not been setup */

	if (remote_rp->ts_jiffies == 0)

		return xpRsvdPageNotSet;



	if (XPC_VERSION_MAJOR(remote_rp->version) !=

drivers/misc/sgi-xp/xpc_sn2.c

+14 −12
Original line number Diff line number Diff line
@@ -863,8 +863,8 @@ xpc_partition_deactivation_requested_sn2(short partid) 
 */

static void

xpc_update_partition_info_sn2(struct xpc_partition *part, u8 remote_rp_version,

			      unsigned long *remote_rp_stamp, u64 remote_rp_pa,

			      u64 remote_vars_pa,

			      unsigned long *remote_rp_ts_jiffies,

			      u64 remote_rp_pa, u64 remote_vars_pa,

			      struct xpc_vars_sn2 *remote_vars)

{

	struct xpc_partition_sn2 *part_sn2 = &part->sn.sn2;
@@ -873,9 +873,9 @@ xpc_update_partition_info_sn2(struct xpc_partition *part, u8 remote_rp_version, 
	dev_dbg(xpc_part, "  remote_rp_version = 0x%016x\n",

		part->remote_rp_version);



	part->remote_rp_stamp = *remote_rp_stamp;

	dev_dbg(xpc_part, "  remote_rp_stamp = 0x%016lx\n",

		part->remote_rp_stamp);

	part->remote_rp_ts_jiffies = *remote_rp_ts_jiffies;

	dev_dbg(xpc_part, "  remote_rp_ts_jiffies = 0x%016lx\n",

		part->remote_rp_ts_jiffies);



	part->remote_rp_pa = remote_rp_pa;

	dev_dbg(xpc_part, "  remote_rp_pa = 0x%016lx\n", part->remote_rp_pa);
@@ -933,7 +933,7 @@ xpc_identify_activate_IRQ_req_sn2(int nasid) 
	u64 remote_vars_pa;

	int remote_rp_version;

	int reactivate = 0;

	unsigned long remote_rp_stamp = 0;

	unsigned long remote_rp_ts_jiffies = 0;

	short partid;

	struct xpc_partition *part;

	struct xpc_partition_sn2 *part_sn2;
@@ -952,7 +952,7 @@ xpc_identify_activate_IRQ_req_sn2(int nasid) 


	remote_vars_pa = remote_rp->sn.vars_pa;

	remote_rp_version = remote_rp->version;

	remote_rp_stamp = remote_rp->stamp;

	remote_rp_ts_jiffies = remote_rp->ts_jiffies;



	partid = remote_rp->SAL_partid;

	part = &xpc_partitions[partid];
@@ -981,8 +981,9 @@ xpc_identify_activate_IRQ_req_sn2(int nasid) 
	    part->act_state == XPC_P_INACTIVE) {



		xpc_update_partition_info_sn2(part, remote_rp_version,

					      &remote_rp_stamp, remote_rp_pa,

					      remote_vars_pa, remote_vars);

					      &remote_rp_ts_jiffies,

					      remote_rp_pa, remote_vars_pa,

					      remote_vars);



		if (xpc_partition_deactivation_requested_sn2(partid)) {

			/*
@@ -999,7 +1000,7 @@ xpc_identify_activate_IRQ_req_sn2(int nasid) 
	DBUG_ON(part->remote_rp_version == 0);

	DBUG_ON(part_sn2->remote_vars_version == 0);



	if (remote_rp_stamp != part->remote_rp_stamp) {

	if (remote_rp_ts_jiffies != part->remote_rp_ts_jiffies) {



		/* the other side rebooted */
@@ -1007,8 +1008,9 @@ xpc_identify_activate_IRQ_req_sn2(int nasid) 
		DBUG_ON(xpc_partition_deactivation_requested_sn2(partid));



		xpc_update_partition_info_sn2(part, remote_rp_version,

					      &remote_rp_stamp, remote_rp_pa,

					      remote_vars_pa, remote_vars);

					      &remote_rp_ts_jiffies,

					      remote_rp_pa, remote_vars_pa,

					      remote_vars);

		reactivate = 1;

	}