diff options
| author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2013-03-04 22:18:20 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-05 12:43:10 +0400 |
| commit | 67e2cba459a3780c283113808a07adea92762f86 (patch) | |
| tree | ab4a71c1d2a2c9ecdc0ce91369c68777cac1221b /drivers/staging/zcache | |
| parent | 1dba904ca9893c9780748e8bda1c2423828faf40 (diff) | |
| download | linux-67e2cba459a3780c283113808a07adea92762f86.tar.xz | |
zcache/debug: Coalesce all debug under CONFIG_ZCACHE_DEBUG
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>
Diffstat (limited to 'drivers/staging/zcache')
| -rw-r--r-- | drivers/staging/zcache/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/staging/zcache/debug.c | 2 | ||||
| -rw-r--r-- | drivers/staging/zcache/zcache-main.c | 6 |
3 files changed, 12 insertions, 4 deletions
diff --git a/drivers/staging/zcache/Kconfig b/drivers/staging/zcache/Kconfig index 73582705e8c5..2da6cc444c7e 100644 --- a/drivers/staging/zcache/Kconfig +++ b/drivers/staging/zcache/Kconfig @@ -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 diff --git a/drivers/staging/zcache/debug.c b/drivers/staging/zcache/debug.c index cf19adc23323..e951c64a13dc 100644 --- a/drivers/staging/zcache/debug.c +++ b/drivers/staging/zcache/debug.c @@ -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, } diff --git a/drivers/staging/zcache/zcache-main.c b/drivers/staging/zcache/zcache-main.c index 4b9ee7f0218f..7c0fda4106a0 100644 --- a/drivers/staging/zcache/zcache-main.c +++ b/drivers/staging/zcache/zcache-main.c @@ -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); |