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author | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-08-06 17:42:33 (GMT) |
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committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-08-06 17:42:33 (GMT) |
commit | 00dd7b7d26a3bf3780cfcebfdde2b86126b3a082 (patch) | |
tree | 5129fd1abc99d0c58a520938f28bf330ae94ef30 /Documentation/cpu-hotplug.txt | |
parent | 58b3ac07fed31ffc1349380b78305af6522fe1f4 (diff) | |
parent | 6e1e63259b1e01f047796e7985d960ca040993e6 (diff) | |
download | linux-fsl-qoriq-00dd7b7d26a3bf3780cfcebfdde2b86126b3a082.tar.xz |
Merge ../linux-2.6
Conflicts:
arch/ia64/hp/sim/simscsi.c
Stylistic differences in two separate fixes for buffer->request_buffer
problem.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'Documentation/cpu-hotplug.txt')
-rw-r--r-- | Documentation/cpu-hotplug.txt | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/Documentation/cpu-hotplug.txt b/Documentation/cpu-hotplug.txt index 1bcf699..bc107cb 100644 --- a/Documentation/cpu-hotplug.txt +++ b/Documentation/cpu-hotplug.txt @@ -251,16 +251,24 @@ A: This is what you would need in your kernel code to receive notifications. return NOTIFY_OK; } - static struct notifier_block foobar_cpu_notifer = + static struct notifier_block __cpuinitdata foobar_cpu_notifer = { .notifier_call = foobar_cpu_callback, }; +You need to call register_cpu_notifier() from your init function. +Init functions could be of two types: +1. early init (init function called when only the boot processor is online). +2. late init (init function called _after_ all the CPUs are online). -In your init function, +For the first case, you should add the following to your init function register_cpu_notifier(&foobar_cpu_notifier); +For the second case, you should add the following to your init function + + register_hotcpu_notifier(&foobar_cpu_notifier); + You can fail PREPARE notifiers if something doesn't work to prepare resources. This will stop the activity and send a following CANCELED event back. |