[PATCH 6/8] zram: remove max_num_devices limitation

Sergey Senozhatsky
2015-03-03T12:50:01Z

Limiting the number of zram devices to 32 (default max_num_devices value)
is confusing, let's drop it. A user with 2TB or 4TB of RAM, for example,
can request as many devices as he can handle.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
drivers/block/zram/zram_drv.c | 8 +-------
drivers/block/zram/zram_drv.h | 6 ------
2 files changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index a457e16..f1182a7 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1302,12 +1302,6 @@ static int __init zram_init(void)
{
int ret, dev_id;

- if (num_devices > max_num_devices) {
- pr_warn("Invalid value for num_devices: %u\n",
- num_devices);
- return -EINVAL;
- }
-
ret = class_register(&zram_control_class);
if (ret) {
pr_warn("Unable to register zram-control class\n");
@@ -1346,7 +1340,7 @@ module_init(zram_init);
module_exit(zram_exit);

module_param(num_devices, uint, 0);
-MODULE_PARM_DESC(num_devices, "Number of zram devices");
+MODULE_PARM_DESC(num_devices, "Number of pre-created zram devices");

MODULE_LICENSE("Dual BSD/GPL");
MODULE_AUTHOR("Nitin Gupta <ngupta@vflare.org>");
diff --git a/drivers/block/zram/zram_drv.h b/drivers/block/zram/zram_drv.h
index 17056e5..60d14bc 100644
--- a/drivers/block/zram/zram_drv.h
+++ b/drivers/block/zram/zram_drv.h
@@ -20,12 +20,6 @@

#include "zcomp.h"

-/*
- * Some arbitrary value. This is just to catch
- * invalid value for num_devices module parameter.
- */
-static const unsigned max_num_devices = 32;
-
/*-- Configurable parameters */

/*
--
2.3.1.167.g7f4ba4b