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: Dean Nelson <dcn@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/misc/sgi-xp/xpc.h b/drivers/misc/sgi-xp/xpc.h
index 0907934cdd8fb21e83b62e2e76576c2c051dbea7..e194d3140f6806d78bd0f39d4cf42888fe5c1300 100644 (file)
--- a/drivers/misc/sgi-xp/xpc.h
+++ b/drivers/misc/sgi-xp/xpc.h
@@ -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 */

diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
index 36dfccea52478db62bcf2153803a68efc82ac9da..e7ff9e1670f62d2d027ee7a757ff307cf0c27d41 100644 (file)
--- a/drivers/misc/sgi-xp/xpc_main.c
+++ b/drivers/misc/sgi-xp/xpc_main.c
@@ -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);

diff --git a/drivers/misc/sgi-xp/xpc_partition.c b/drivers/misc/sgi-xp/xpc_partition.c
index ca6784f5597071fe697bf30455b69e3ace8c1049..70d4a00c97231a22bc5948a6197cf46a9eaa956e 100644 (file)
--- a/drivers/misc/sgi-xp/xpc_partition.c
+++ b/drivers/misc/sgi-xp/xpc_partition.c
@@ -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) !=

diff --git a/drivers/misc/sgi-xp/xpc_sn2.c b/drivers/misc/sgi-xp/xpc_sn2.c
index f82889f60151546a1ff5c47e88e8db5691a48e45..4b5f69edf0d2017b04ee0bb94b9f10eaafa1dcb7 100644 (file)
--- a/drivers/misc/sgi-xp/xpc_sn2.c
+++ b/drivers/misc/sgi-xp/xpc_sn2.c
@@ -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;
        }