484875adbc
Currently, the user has to explicitly write a positive value to initstate sysfs node before the device can be used. This event triggers allocation of per-device metadata like memory pool, table array and so on. We do not pre-initialize all zram devices since the 'table' array, mapping disk blocks to compressed chunks, takes considerable amount of memory (8 bytes per page). So, pre-initializing all devices will be quite wasteful if only few or none of the devices are actually used. This explicit device initialization from user is an odd requirement and can be easily avoided. We now initialize the device when first write is done to the device. Signed-off-by: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| xvmalloc_int.h | ||
| xvmalloc.c | ||
| xvmalloc.h | ||
| zram_drv.c | ||
| zram_drv.h | ||
| zram_sysfs.c | ||
| zram.txt | ||