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Message-Id: <1425199363-15590-7-git-send-email-sergey.senozhatsky@gmail.com>
Date: Sun, 1 Mar 2015 17:42:42 +0900
From: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To: Andrew Morton <akpm@...ux-foundation.org>,
Minchan Kim <minchan@...nel.org>
Cc: Nitin Gupta <ngupta@...are.org>, linux-kernel@...r.kernel.org,
Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Subject: [PATCHv2 6/7] zram: remove max_num_devices limitation
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@...il.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 8609c92..5664b75 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1300,12 +1300,6 @@ 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");
@@ -1343,7 +1337,7 @@ 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@...are.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
--
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