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authorSergey Senozhatsky <sergey.senozhatsky@gmail.com>2015-06-26 01:00:11 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-06-26 03:00:36 +0300
commitc3cdb40e66344553898daa3ccd068c03173a3f42 (patch)
tree53fd5157d5958c12a36969b73c298c6ebbeabdd6 /drivers/block/zram
parent522698d7cadb5d208429c934f673713b7a42e925 (diff)
downloadlinux-c3cdb40e66344553898daa3ccd068c03173a3f42.tar.xz
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@gmail.com> Acked-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/block/zram')
-rw-r--r--drivers/block/zram/zram_drv.c8
-rw-r--r--drivers/block/zram/zram_drv.h6
2 files changed, 1 insertions, 13 deletions
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 82bc2ff9bd81..70aac2e564e9 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1287,12 +1287,6 @@ 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;
- }
-
zram_major = register_blkdev(0, "zram");
if (zram_major <= 0) {
pr_warn("Unable to get major number\n");
@@ -1322,7 +1316,7 @@ 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 570c598f4ce9..042994e807cf 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 */
/*