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zcache/debug: Coalesce all debug under CONFIG_ZCACHE_DEBUG

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and also define this extra attribute in the Kconfig entry.

Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Konrad Rzeszutek Wilk 2013-03-04 13:18:20 -05:00 • committed by Greg Kroah-Hartman
parent 1dba904ca9
commit 67e2cba459
3 changed files with 12 additions and 4 deletions
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8
drivers/staging/zcache/Kconfig
View file

@ -10,6 +10,14 @@ config ZCACHE
memory to store clean page cache pages and swap in RAM,
providing a noticeable reduction in disk I/O.
config ZCACHE_DEBUG
bool "Enable debug statistics"
depends on DEBUG_FS && ZCACHE
default n
help
This is used to provide an debugfs directory with counters of
how zcache is doing. You probably want to set this to 'N'.
config RAMSTER
bool "Cross-machine RAM capacity sharing, aka peer-to-peer tmem"
depends on CONFIGFS_FS=y && SYSFS=y && !HIGHMEM && ZCACHE=y

2
drivers/staging/zcache/debug.c
View file

@ -1,7 +1,7 @@
#include <linux/atomic.h>
#include "debug.h"
#ifdef CONFIG_DEBUG_FS
#ifdef CONFIG_ZCACHE_DEBUG
#include <linux/debugfs.h>
#define ATTR(x) { .name = #x, .val = &zcache_##x, }

6
drivers/staging/zcache/zcache-main.c
View file

@ -306,7 +306,7 @@ static void zcache_free_page(struct page *page)
max_pageframes = curr_pageframes;
if (curr_pageframes < min_pageframes)
min_pageframes = curr_pageframes;
#ifdef ZCACHE_DEBUG
#ifdef CONFIG_ZCACHE_DEBUG
if (curr_pageframes > 2L || curr_pageframes < -2L) {
/* pr_info here */
}
@ -1774,7 +1774,7 @@ static int __init zcache_init(void)
old_ops = zcache_cleancache_register_ops();
pr_info("%s: cleancache enabled using kernel transcendent "
"memory and compression buddies\n", namestr);
#ifdef ZCACHE_DEBUG
#ifdef CONFIG_ZCACHE_DEBUG
pr_info("%s: cleancache: ignorenonactive = %d\n",
namestr, !disable_cleancache_ignore_nonactive);
#endif
@ -1789,7 +1789,7 @@ static int __init zcache_init(void)
frontswap_tmem_exclusive_gets(true);
pr_info("%s: frontswap enabled using kernel transcendent "
"memory and compression buddies\n", namestr);
#ifdef ZCACHE_DEBUG
#ifdef CONFIG_ZCACHE_DEBUG
pr_info("%s: frontswap: excl gets = %d active only = %d\n",
namestr, frontswap_has_exclusive_gets,
!disable_frontswap_ignore_nonactive);