Commit 9a91dd50 authored by Thomas Bogendoerfer's avatar Thomas Bogendoerfer
Browse files

MIPS: kernel: Remove not needed set_fs calls 



flush_icache_range always does flush kernel address ranges, so no
need to do the set_fs dance.

Signed-off-by: default avatarThomas Bogendoerfer <tsbogend@alpha.franken.de>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
parent dfad83cb

arch/mips/kernel/ftrace.c

+0 −8
Original line number Diff line number Diff line
@@ -90,7 +90,6 @@ static int ftrace_modify_code_2(unsigned long ip, unsigned int new_code1, 
				unsigned int new_code2)

{

	int faulted;

	mm_segment_t old_fs;



	safe_store_code(new_code1, ip, faulted);

	if (unlikely(faulted))
@@ -102,10 +101,7 @@ static int ftrace_modify_code_2(unsigned long ip, unsigned int new_code1, 
		return -EFAULT;



	ip -= 4;

	old_fs = get_fs();

	set_fs(KERNEL_DS);

	flush_icache_range(ip, ip + 8);

	set_fs(old_fs);



	return 0;

}
@@ -114,7 +110,6 @@ static int ftrace_modify_code_2r(unsigned long ip, unsigned int new_code1, 
				 unsigned int new_code2)

{

	int faulted;

	mm_segment_t old_fs;



	ip += 4;

	safe_store_code(new_code2, ip, faulted);
@@ -126,10 +121,7 @@ static int ftrace_modify_code_2r(unsigned long ip, unsigned int new_code1, 
	if (unlikely(faulted))

		return -EFAULT;



	old_fs = get_fs();

	set_fs(KERNEL_DS);

	flush_icache_range(ip, ip + 8);

	set_fs(old_fs);



	return 0;

}