From 12ab028be0008640de712ca890dc1a9ae224934d Mon Sep 17 00:00:00 2001 From: Dan Streetman <ddstreet@ieee.org> Date: Thu, 23 Jan 2014 15:52:48 -0800 Subject: [PATCH] mm/zswap.c: change params from hidden to ro The "compressor" and "enabled" params are currently hidden, this changes them to read-only, so userspace can tell if zswap is enabled or not and see what compressor is in use. Signed-off-by: Dan Streetman <ddstreet@ieee.org> Cc: Vladimir Murzin <murzin.v@gmail.com> Cc: Bob Liu <bob.liu@oracle.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Weijie Yang <weijie.yang@samsung.com> Acked-by: Seth Jennings <sjennings@variantweb.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- mm/zswap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/zswap.c b/mm/zswap.c index 5a63f78a5601..e55bab9dc41f 100644 --- a/mm/zswap.c +++ b/mm/zswap.c @@ -77,12 +77,12 @@ static u64 zswap_duplicate_entry; **********************************/ /* Enable/disable zswap (disabled by default, fixed at boot for now) */ static bool zswap_enabled __read_mostly; -module_param_named(enabled, zswap_enabled, bool, 0); +module_param_named(enabled, zswap_enabled, bool, 0444); /* Compressor to be used by zswap (fixed at boot for now) */ #define ZSWAP_COMPRESSOR_DEFAULT "lzo" static char *zswap_compressor = ZSWAP_COMPRESSOR_DEFAULT; -module_param_named(compressor, zswap_compressor, charp, 0); +module_param_named(compressor, zswap_compressor, charp, 0444); /* The maximum percentage of memory that the compressed pool can occupy */ static unsigned int zswap_max_pool_percent = 20; -- GitLab