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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
os
linux
[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: Ankita Garg <ankita@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
authored by Ankita Garg and committed by Linus Torvalds 18a61e4a 4b96b1a1
+4
-4
drivers/misc/lkdtm.c
+4
-4
drivers/misc/lkdtm.c
···
157
158
struct scan_control;
159
160
-
unsigned long jp_shrink_page_list(struct list_head *page_list,
161
-
struct scan_control *sc)
162
{
163
lkdtm_handler();
164
jprobe_return();
···
297
lkdtm.entry = (kprobe_opcode_t*) jp_ll_rw_block;
298
break;
299
case MEM_SWAPOUT:
300
-
lkdtm.kp.symbol_name = "shrink_page_list";
301
-
lkdtm.entry = (kprobe_opcode_t*) jp_shrink_page_list;
302
break;
303
case TIMERADD:
304
lkdtm.kp.symbol_name = "hrtimer_start";
···
157
158
struct scan_control;
159
160
+
unsigned long jp_shrink_inactive_list(unsigned long max_scan,
161
+
struct zone *zone, struct scan_control *sc)
162
{
163
lkdtm_handler();
164
jprobe_return();
···
297
lkdtm.entry = (kprobe_opcode_t*) jp_ll_rw_block;
298
break;
299
case MEM_SWAPOUT:
300
+
lkdtm.kp.symbol_name = "shrink_inactive_list";
301
+
lkdtm.entry = (kprobe_opcode_t*) jp_shrink_inactive_list;
302
break;
303
case TIMERADD:
304
lkdtm.kp.symbol_name = "hrtimer_start";