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authorChandra Seetharaman <sekharan@us.ibm.com>2006-06-27 02:54:11 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-27 17:32:41 -0700
commit5a67e4c5b6faaccf31740a07d93704166405d880 (patch)
treea302ac0dae12f3e430ff485242bc0a85ddfbc00d
parent39f4885c56073ecafd482d7e10dd7b17900fa312 (diff)
downloadlinux-linaro-stable-5a67e4c5b6faaccf31740a07d93704166405d880.tar.gz
[PATCH] cpu hotplug: use hotplug version of cpu notifier in appropriate places
Make use the of newly defined hotplug version of cpu_notifier functionality wherever appropriate. Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Cc: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--arch/ia64/kernel/salinfo.c4
-rw-r--r--block/ll_rw_blk.c4
-rw-r--r--fs/xfs/xfs_mount.c18
3 files changed, 12 insertions, 14 deletions
diff --git a/arch/ia64/kernel/salinfo.c b/arch/ia64/kernel/salinfo.c
index 9d5a823479a3..9065f0f01ba3 100644
--- a/arch/ia64/kernel/salinfo.c
+++ b/arch/ia64/kernel/salinfo.c
@@ -673,9 +673,7 @@ salinfo_init(void)
salinfo_timer.function = &salinfo_timeout;
add_timer(&salinfo_timer);
-#ifdef CONFIG_HOTPLUG_CPU
- register_cpu_notifier(&salinfo_cpu_notifier);
-#endif
+ register_hotcpu_notifier(&salinfo_cpu_notifier);
return 0;
}
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index 9610b07cc196..eee03a3876a3 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -3541,9 +3541,7 @@ int __init blk_dev_init(void)
INIT_LIST_HEAD(&per_cpu(blk_cpu_done, i));
open_softirq(BLOCK_SOFTIRQ, blk_done_softirq, NULL);
-#ifdef CONFIG_HOTPLUG_CPU
- register_cpu_notifier(&blk_cpu_notifier);
-#endif
+ register_hotcpu_notifier(&blk_cpu_notifier);
blk_max_low_pfn = max_low_pfn;
blk_max_pfn = max_pfn;
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 10dbf203c62f..ed7579beb6b0 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -1721,15 +1721,14 @@ xfs_mount_log_sbunit(
* is present to prevent thrashing).
*/
+#ifdef CONFIG_HOTPLUG_CPU
/*
* hot-plug CPU notifier support.
*
- * We cannot use the hotcpu_register() function because it does
- * not allow notifier instances. We need a notifier per filesystem
- * as we need to be able to identify the filesystem to balance
- * the counters out. This is achieved by having a notifier block
- * embedded in the xfs_mount_t and doing pointer magic to get the
- * mount pointer from the notifier block address.
+ * We need a notifier per filesystem as we need to be able to identify
+ * the filesystem to balance the counters out. This is achieved by
+ * having a notifier block embedded in the xfs_mount_t and doing pointer
+ * magic to get the mount pointer from the notifier block address.
*/
STATIC int
xfs_icsb_cpu_notify(
@@ -1779,6 +1778,7 @@ xfs_icsb_cpu_notify(
return NOTIFY_OK;
}
+#endif /* CONFIG_HOTPLUG_CPU */
int
xfs_icsb_init_counters(
@@ -1791,9 +1791,11 @@ xfs_icsb_init_counters(
if (mp->m_sb_cnts == NULL)
return -ENOMEM;
+#ifdef CONFIG_HOTPLUG_CPU
mp->m_icsb_notifier.notifier_call = xfs_icsb_cpu_notify;
mp->m_icsb_notifier.priority = 0;
- register_cpu_notifier(&mp->m_icsb_notifier);
+ register_hotcpu_notifier(&mp->m_icsb_notifier);
+#endif /* CONFIG_HOTPLUG_CPU */
for_each_online_cpu(i) {
cntp = (xfs_icsb_cnts_t *)per_cpu_ptr(mp->m_sb_cnts, i);
@@ -1812,7 +1814,7 @@ xfs_icsb_destroy_counters(
xfs_mount_t *mp)
{
if (mp->m_sb_cnts) {
- unregister_cpu_notifier(&mp->m_icsb_notifier);
+ unregister_hotcpu_notifier(&mp->m_icsb_notifier);
free_percpu(mp->m_sb_cnts);
}
}