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Commit d219e2e8 authored by David Daney's avatar David Daney Committed by H. Peter Anvin
Browse files

extable: Skip sorting if sorted at build time. 



If the build program sortextable has already sorted the exception
table, don't sort it again.

Signed-off-by: default avatarDavid Daney <david.daney@cavium.com>
Link: http://lkml.kernel.org/r/1334872799-14589-3-git-send-email-ddaney.cavm@gmail.com


Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
parent a79f248b

kernel/extable.c

+7 −1
Original line number Diff line number Diff line
@@ -35,10 +35,16 @@ DEFINE_MUTEX(text_mutex); 
extern struct exception_table_entry __start___ex_table[];

extern struct exception_table_entry __stop___ex_table[];



/* Cleared by build time tools if the table is already sorted. */

u32 __initdata main_extable_sort_needed = 1;



/* Sort the kernel's built-in exception table */

void __init sort_main_extable(void)

{

	if (main_extable_sort_needed)

		sort_extable(__start___ex_table, __stop___ex_table);

	else

		pr_notice("__ex_table already sorted, skipping sort\n");

}



/* Given an address, look for it in the exception tables. */