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Commit 18a61e4a authored by Ankita Garg's avatar Ankita Garg Committed by Linus Torvalds
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[PATCH] Fix for LKDTM MEM_SWAPOUT crashpoint 



The MEM_SWAPOUT crashpoint in LKDTM could be broken as some compilers
inline the call to shrink_page_list() and symbol lookup for this function
name fails.  Replacing it with the function shrink_inactive_list(), which
is the only function calling shrink_page_list().

Signed-off-by: default avatarAnkita Garg <ankita@in.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 4b96b1a1

drivers/misc/lkdtm.c

+4 −4
Original line number Diff line number Diff line
@@ -157,8 +157,8 @@ void jp_ll_rw_block(int rw, int nr, struct buffer_head *bhs[]) 


struct scan_control;



unsigned long jp_shrink_page_list(struct list_head *page_list,

                                        struct scan_control *sc)

unsigned long jp_shrink_inactive_list(unsigned long max_scan,

				struct zone *zone, struct scan_control *sc)

{

	lkdtm_handler();

	jprobe_return();
@@ -297,8 +297,8 @@ int lkdtm_module_init(void) 
		lkdtm.entry = (kprobe_opcode_t*) jp_ll_rw_block;

		break;

	case MEM_SWAPOUT:

		lkdtm.kp.symbol_name = "shrink_page_list";

		lkdtm.entry = (kprobe_opcode_t*) jp_shrink_page_list;

		lkdtm.kp.symbol_name = "shrink_inactive_list";

		lkdtm.entry = (kprobe_opcode_t*) jp_shrink_inactive_list;

		break;

	case TIMERADD:

		lkdtm.kp.symbol_name = "hrtimer_start";