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Commit 7415d5e0 authored by Manish Ahuja's avatar Manish Ahuja Committed by Paul Mackerras
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[POWERPC] pseries: phyp dump: Inform kdump when phyp-dump is loaded 



This adds /sys/kernel/phyp_dump_active so that kdump init scripts may
look for it and take appropriate action if this file is found.  This
file is only created when phyp_dump has been registered.

Signed-off-by: default avatarManish Ahuja <mahuja@us.ibm.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 654f596d

arch/powerpc/platforms/pseries/phyp_dump.c

+18 −0
Original line number Diff line number Diff line
@@ -182,6 +182,18 @@ static void print_dump_header(const struct phyp_dump_header *ph) 
#endif

}



static ssize_t show_phyp_dump_active(struct kobject *kobj,

			struct kobj_attribute *attr, char *buf)

{



	/* create filesystem entry so kdump is phyp-dump aware */

	return sprintf(buf, "%lx\n", phyp_dump_info->phyp_dump_at_boot);

}



static struct kobj_attribute pdl = __ATTR(phyp_dump_active, 0600,

					show_phyp_dump_active,

					NULL);



static void register_dump_area(struct phyp_dump_header *ph, unsigned long addr)

{

	int rc;
@@ -204,7 +216,13 @@ static void register_dump_area(struct phyp_dump_header *ph, unsigned long addr) 
		printk(KERN_ERR "phyp-dump: unexpected error (%d) on "

						"register\n", rc);

		print_dump_header(ph);

		return;

	}



	rc = sysfs_create_file(kernel_kobj, &pdl.attr);

	if (rc)

		printk(KERN_ERR "phyp-dump: unable to create sysfs"

				" file (%d)\n", rc);

}



static