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[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>
This commit is contained in:
Chandra Seetharaman 2006-06-27 02:54:11 -07:00 committed by Linus Torvalds
parent 39f4885c56
commit 5a67e4c5b6
3 changed files with 12 additions and 14 deletions
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4
arch/ia64/kernel/salinfo.c
View File

@ -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;
}

4
block/ll_rw_blk.c
View File

@ -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;

18
fs/xfs/xfs_mount.c
View File

@ -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);
}
}