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Revision 0c01b45257168bc21af88618c75e6aed5b0e6b6d authored by Linus Torvalds on 15 March 2014, 01:01:23 UTC, committed by Linus Torvalds on 15 March 2014, 01:01:23 UTC 
Merge tag 'dm-3.14-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
 
Pull device-mapper fixes form Mike Snitzer:
 "Two small fixes for the DM cache target:

   - fix corruption with >2TB fast device due to truncation bug
   - fix access beyond end of origin device due to a partial block"

* tag 'dm-3.14-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm cache: fix access beyond end of origin device
  dm cache: fix truncation bug when copying a block to/from >2TB fast device
2 parent s c60f7d5 + e893fba
Raw File
memory-notifier-error-inject.c 
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/memory.h>

#include "notifier-error-inject.h"

static int priority;
module_param(priority, int, 0);
MODULE_PARM_DESC(priority, "specify memory notifier priority");

static struct notifier_err_inject memory_notifier_err_inject = {
	.actions = {
		{ NOTIFIER_ERR_INJECT_ACTION(MEM_GOING_ONLINE) },
		{ NOTIFIER_ERR_INJECT_ACTION(MEM_GOING_OFFLINE) },
		{}
	}
};

static struct dentry *dir;

static int err_inject_init(void)
{
	int err;

	dir = notifier_err_inject_init("memory", notifier_err_inject_dir,
					&memory_notifier_err_inject, priority);
	if (IS_ERR(dir))
		return PTR_ERR(dir);

	err = register_memory_notifier(&memory_notifier_err_inject.nb);
	if (err)
		debugfs_remove_recursive(dir);

	return err;
}

static void err_inject_exit(void)
{
	unregister_memory_notifier(&memory_notifier_err_inject.nb);
	debugfs_remove_recursive(dir);
}

module_init(err_inject_init);
module_exit(err_inject_exit);

MODULE_DESCRIPTION("memory notifier error injection module");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Akinobu Mita <akinobu.mita@gmail.com>");
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