Eric Dumazet a écrit :
Mike Galbraith a écrit :
I sure hope it's something like ping-pong, it's driving me NUTS.
Could you please try following patch ?
[PATCH] security_ops moved to read_mostly section
"struct security_operations *security_ops" should be moved to
read_mostly section in order to NOT let it share a cache line with higly
modified variables.
Signed-off-by: Eric Dumazet <dada1@xxxxxxxxxxxxx>
diff --git a/security/security.c b/security/security.c
index 3a4b4f5..0b13d65 100644
--- a/security/security.c
+++ b/security/security.c
@@ -24,7 +24,7 @@ static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1];
extern struct security_operations default_security_ops;
extern void security_fixup_ops(struct security_operations *ops);
-struct security_operations *security_ops; /* Initialized to NULL */
+struct security_operations *security_ops __read_mostly;e
Sorry for the extra 'e' at the end of this line, please remove it :)
/* amount of vm to protect from userspace access */
unsigned long mmap_min_addr = CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR;
--
To unsubscribe from this list: send the line "unsubscribe kernel-testers" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
