Messages in this thread Patch in this message | | | From | Nigel Cunningham <> | Subject | [Suspend2][ 03/11] [Suspend2] Get memory needed for Suspend2 modules. | Date | Tue, 27 Jun 2006 02:53:12 +1000 |
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Determine how much free memory should be available for Suspend2 modules to do their work while reading and writing the image.
Signed-off-by: Nigel Cunningham <nigel@suspend2.net>
kernel/power/modules.c | 22 ++++++++++++++++++++++ 1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/kernel/power/modules.c b/kernel/power/modules.c index 60c7c7b..ff9b9d7 100644 --- a/kernel/power/modules.c +++ b/kernel/power/modules.c @@ -49,3 +49,25 @@ unsigned long suspend_header_storage_for return bytes + sizeof(struct suspend_module_header); } +/* + * suspend_memory_for_modules + * + * Returns the amount of memory requested by modules for + * doing their work during the cycle. + */ + +unsigned long suspend_memory_for_modules(void) +{ + unsigned long bytes = 0; + struct suspend_module_ops *this_module; + + list_for_each_entry(this_module, &suspend_modules, module_list) { + if (this_module->disabled) + continue; + if (this_module->memory_needed) + bytes += this_module->memory_needed(); + } + + return ((bytes + PAGE_SIZE - 1) >> PAGE_SHIFT); +} + -- Nigel Cunningham nigel at suspend2 dot net - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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