Dave Wysochanski [off-list ref] wrote:

+		clear_bit(FSCACHE_COOKIE_DO_LRU_DISCARD, &cookie->flags);

Actually, can you do test_and_clear_bit() and then log a trace point, say:

	fscache_see_cookie(cookie, fscache_cookie_see_lru_discard_cancel);

if the bit was set.

David