diff options
Diffstat (limited to 'drivers/staging/zram/zram_drv.c')
-rw-r--r-- | drivers/staging/zram/zram_drv.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c index 5833156..7f13819 100644 --- a/drivers/staging/zram/zram_drv.c +++ b/drivers/staging/zram/zram_drv.c @@ -40,7 +40,7 @@ static int zram_major; struct zram *zram_devices; /* Module params (documentation at end) */ -unsigned int zram_num_devices; +static unsigned int num_devices; static void zram_stat_inc(u32 *v) { @@ -779,13 +779,18 @@ static void destroy_device(struct zram *zram) blk_cleanup_queue(zram->queue); } +unsigned int zram_get_num_devices(void) +{ + return num_devices; +} + static int __init zram_init(void) { int ret, dev_id; - if (zram_num_devices > max_num_devices) { + if (num_devices > max_num_devices) { pr_warning("Invalid value for num_devices: %u\n", - zram_num_devices); + num_devices); ret = -EINVAL; goto out; } @@ -797,20 +802,20 @@ static int __init zram_init(void) goto out; } - if (!zram_num_devices) { + if (!num_devices) { pr_info("num_devices not specified. Using default: 1\n"); - zram_num_devices = 1; + num_devices = 1; } /* Allocate the device array and initialize each one */ - pr_info("Creating %u devices ...\n", zram_num_devices); - zram_devices = kzalloc(zram_num_devices * sizeof(struct zram), GFP_KERNEL); + pr_info("Creating %u devices ...\n", num_devices); + zram_devices = kzalloc(num_devices * sizeof(struct zram), GFP_KERNEL); if (!zram_devices) { ret = -ENOMEM; goto unregister; } - for (dev_id = 0; dev_id < zram_num_devices; dev_id++) { + for (dev_id = 0; dev_id < num_devices; dev_id++) { ret = create_device(&zram_devices[dev_id], dev_id); if (ret) goto free_devices; @@ -833,7 +838,7 @@ static void __exit zram_exit(void) int i; struct zram *zram; - for (i = 0; i < zram_num_devices; i++) { + for (i = 0; i < num_devices; i++) { zram = &zram_devices[i]; destroy_device(zram); @@ -847,8 +852,8 @@ static void __exit zram_exit(void) pr_debug("Cleanup done!\n"); } -module_param(zram_num_devices, uint, 0); -MODULE_PARM_DESC(zram_num_devices, "Number of zram devices"); +module_param(num_devices, uint, 0); +MODULE_PARM_DESC(num_devices, "Number of zram devices"); module_init(zram_init); module_exit(zram_exit); |