The only place where content of zram entry is accessed and even changed without taken zran lock is zram_free_page() calls from zram_meta_free(). It does not look like problem because zram should not have any users at this point, however I still do not understand why this is required? Is it performance optimization? But zram reset is quite rare operation, I doubt it is called on some performance-critical fast path. Am I missed something perhaps? I would like to add proper zram_lock/unlock calls around zram_free_page here, and would like to clarify,perhaps you have any objections? Thank you, Vasily Averin
