Allows configuring default number of zram devices as kernel config option. User can override this value using 'num_devices' module parameter.
Signed-off-by: Nitin Gupta <[email protected]> --- drivers/staging/zram/Kconfig | 9 +++++++++ drivers/staging/zram/zram_drv.c | 13 ++++++++----- 2 files changed, 17 insertions(+), 5 deletions(-) diff --git a/drivers/staging/zram/Kconfig b/drivers/staging/zram/Kconfig index 3bec4db..ca31cb3 100644 --- a/drivers/staging/zram/Kconfig +++ b/drivers/staging/zram/Kconfig @@ -21,6 +21,15 @@ config ZRAM See zram.txt for more information. Project home: http://compcache.googlecode.com/ +config ZRAM_NUM_DEVICES + int "Default number of zram devices" + depends on ZRAM + range 1 32 + default 1 + help + Select default number of zram devices. You can override this value + using 'num_devices' module parameter. + config ZRAM_DEBUG bool "Compressed RAM block device debug support" depends on ZRAM diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c index 03ec5a2..55f2c0e 100644 --- a/drivers/staging/zram/zram_drv.c +++ b/drivers/staging/zram/zram_drv.c @@ -781,6 +781,14 @@ static int __init zram_init(void) { int ret, dev_id; + /* + * Module parameter not specified by user. Use default + * value as defined during kernel config. + */ + if (num_devices == 0) { + num_devices = CONFIG_ZRAM_NUM_DEVICES; + } + if (num_devices > max_num_devices) { pr_warning("Invalid value for num_devices: %u\n", num_devices); @@ -795,11 +803,6 @@ static int __init zram_init(void) goto out; } - if (!num_devices) { - pr_info("num_devices not specified. Using default: 1\n"); - num_devices = 1; - } - /* Allocate the device array and initialize each one */ pr_info("Creating %u devices ...\n", num_devices); devices = kzalloc(num_devices * sizeof(struct zram), GFP_KERNEL); -- 1.7.6 _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
