I uploaded new dm-bufio patch at http://people.redhat.com/mpatocka/patches/kernel/dm-thinp-bufio/dm-bufio.patch It reports the number of allocated bytes in "/sys/module/dm_bufio/parameters/". There is a file "total_allocated" that contains the number of bytes allocated for buffer cache. There are files "allocated_get_free_pages", "allocated_kmalloc", "allocated_vmalloc" that contain a number of allocated bytes with each method. BTW. if you store "1" in "cache_size", it switches to a mode where it won't allocate any memory during operation, relying only on preallocated reserves --- useful for testing reservation deadlocks. Mikulas -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
