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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2013-03-04 13:18:16 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-05 16:43:09 +0800
commit95bdaee2140ef60d31fff1de71f43448ae56cdbe (patch)
treecc49bea7d006850dc8433eb649c4c078006f806f /drivers/staging/zcache/zcache-main.c
parenta96138be77d1c7e44ff2d0b0366f3b0b240d3e39 (diff)
downloadlinux-95bdaee2140ef60d31fff1de71f43448ae56cdbe.tar.gz
zcache: Move debugfs code out of zcache-main.c file.
Note that at this point there is no CONFIG_ZCACHE_DEBUG option in the Kconfig. So in effect all of the counters are nop until that option gets re-introduced in: zcache/debug: Coalesce all debug under CONFIG_ZCACHE_DEBUG Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com> [v1: Fixed conflicts due to rebase] 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/zcache-main.c')
-rw-r--r--drivers/staging/zcache/zcache-main.c264
1 files changed, 8 insertions, 256 deletions
diff --git a/drivers/staging/zcache/zcache-main.c b/drivers/staging/zcache/zcache-main.c
index 366d457a6c7..9d6cf968513 100644
--- a/drivers/staging/zcache/zcache-main.c
+++ b/drivers/staging/zcache/zcache-main.c
@@ -33,6 +33,7 @@
#include "zcache.h"
#include "zbud.h"
#include "ramster.h"
+#include "debug.h"
#ifdef CONFIG_RAMSTER
static bool ramster_enabled __read_mostly;
#else
@@ -134,134 +135,13 @@ static struct kmem_cache *zcache_obj_cache;
static DEFINE_PER_CPU(struct zcache_preload, zcache_preloads) = { 0, };
-/* we try to keep these statistics SMP-consistent */
-static ssize_t zcache_obj_count;
-static atomic_t zcache_obj_atomic = ATOMIC_INIT(0);
-static ssize_t zcache_obj_count_max;
-static ssize_t zcache_objnode_count;
-static inline void inc_zcache_obj_count(void)
-{
- zcache_obj_count = atomic_inc_return(&zcache_obj_atomic);
- if (zcache_obj_count > zcache_obj_count_max)
- zcache_obj_count_max = zcache_obj_count;
-}
-static inline void dec_zcache_obj_count(void)
-{
- zcache_obj_count = atomic_dec_return(&zcache_obj_atomic);
- BUG_ON(zcache_obj_count < 0);
-};
-static atomic_t zcache_objnode_atomic = ATOMIC_INIT(0);
-static ssize_t zcache_objnode_count_max;
-static inline void inc_zcache_objnode_count(void)
-{
- zcache_objnode_count = atomic_inc_return(&zcache_objnode_atomic);
- if (zcache_objnode_count > zcache_objnode_count_max)
- zcache_objnode_count_max = zcache_objnode_count;
-};
-static inline void dec_zcache_objnode_count(void)
-{
- zcache_objnode_count = atomic_dec_return(&zcache_objnode_atomic);
- BUG_ON(zcache_objnode_count < 0);
-};
-static u64 zcache_eph_zbytes;
-static atomic_long_t zcache_eph_zbytes_atomic = ATOMIC_INIT(0);
-static u64 zcache_eph_zbytes_max;
-static inline void inc_zcache_eph_zbytes(unsigned clen)
-{
- zcache_eph_zbytes = atomic_long_add_return(clen, &zcache_eph_zbytes_atomic);
- if (zcache_eph_zbytes > zcache_eph_zbytes_max)
- zcache_eph_zbytes_max = zcache_eph_zbytes;
-};
-static inline void dec_zcache_eph_zbytes(unsigned zsize)
-{
- zcache_eph_zbytes = atomic_long_sub_return(zsize, &zcache_eph_zbytes_atomic);
-};
-static u64 zcache_pers_zbytes;
-static atomic_long_t zcache_pers_zbytes_atomic = ATOMIC_INIT(0);
-static u64 zcache_pers_zbytes_max;
-static ssize_t zcache_eph_pageframes;
-static inline void inc_zcache_pers_zbytes(unsigned clen)
-{
- zcache_pers_zbytes = atomic_long_add_return(clen, &zcache_pers_zbytes_atomic);
- if (zcache_pers_zbytes > zcache_pers_zbytes_max)
- zcache_pers_zbytes_max = zcache_pers_zbytes;
-}
-static inline void dec_zcache_pers_zbytes(unsigned zsize)
-{
- zcache_pers_zbytes = atomic_long_sub_return(zsize, &zcache_pers_zbytes_atomic);
-}
-static atomic_t zcache_eph_pageframes_atomic = ATOMIC_INIT(0);
-static ssize_t zcache_eph_pageframes_max;
-static ssize_t zcache_pers_pageframes;
-static inline void inc_zcache_eph_pageframes(void)
-{
- zcache_eph_pageframes = atomic_inc_return(&zcache_eph_pageframes_atomic);
- if (zcache_eph_pageframes > zcache_eph_pageframes_max)
- zcache_eph_pageframes_max = zcache_eph_pageframes;
-};
-static inline void dec_zcache_eph_pageframes(void)
-{
- zcache_eph_pageframes = atomic_dec_return(&zcache_eph_pageframes_atomic);
-};
-static atomic_t zcache_pers_pageframes_atomic = ATOMIC_INIT(0);
-static ssize_t zcache_pers_pageframes_max;
-static ssize_t zcache_pageframes_alloced;
-static inline void inc_zcache_pers_pageframes(void)
-{
- zcache_pers_pageframes = atomic_inc_return(&zcache_pers_pageframes_atomic);
- if (zcache_pers_pageframes > zcache_pers_pageframes_max)
- zcache_pers_pageframes_max = zcache_pers_pageframes;
-}
-static inline void dec_zcache_pers_pageframes(void)
-{
- zcache_pers_pageframes = atomic_dec_return(&zcache_pers_pageframes_atomic);
-}
-static atomic_t zcache_pageframes_alloced_atomic = ATOMIC_INIT(0);
-static ssize_t zcache_pageframes_freed;
-static inline void inc_zcache_pageframes_alloced(void)
-{
- zcache_pageframes_alloced = atomic_inc_return(&zcache_pageframes_alloced_atomic);
-};
-static atomic_t zcache_pageframes_freed_atomic = ATOMIC_INIT(0);
-static ssize_t zcache_eph_zpages;
-static inline void inc_zcache_pageframes_freed(void)
-{
- zcache_pageframes_freed = atomic_inc_return(&zcache_pageframes_freed_atomic);
-}
-static atomic_t zcache_eph_zpages_atomic = ATOMIC_INIT(0);
-static ssize_t zcache_eph_zpages_max;
-static ssize_t zcache_pers_zpages;
-static inline void inc_zcache_eph_zpages(void)
-{
- zcache_eph_zpages = atomic_inc_return(&zcache_eph_zpages_atomic);
- if (zcache_eph_zpages > zcache_eph_zpages_max)
- zcache_eph_zpages_max = zcache_eph_zpages;
-}
-static inline void dec_zcache_eph_zpages(unsigned zpages)
-{
- zcache_eph_zpages = atomic_sub_return(zpages, &zcache_eph_zpages_atomic);
-}
-static atomic_t zcache_pers_zpages_atomic = ATOMIC_INIT(0);
-static ssize_t zcache_pers_zpages_max;
-static inline void inc_zcache_pers_zpages(void)
-{
- zcache_pers_zpages = atomic_inc_return(&zcache_pers_zpages_atomic);
- if (zcache_pers_zpages > zcache_pers_zpages_max)
- zcache_pers_zpages_max = zcache_pers_zpages;
-}
-static inline void dec_zcache_pers_zpages(unsigned zpages)
-{
- zcache_pers_zpages = atomic_sub_return(zpages, &zcache_pers_zpages_atomic);
-}
+/* Used by debug.c */
+ssize_t zcache_pers_zpages;
+u64 zcache_pers_zbytes;
+ssize_t zcache_eph_pageframes;
+ssize_t zcache_pers_pageframes;
-static inline unsigned long curr_pageframes_count(void)
-{
- return zcache_pageframes_alloced -
- atomic_read(&zcache_pageframes_freed_atomic) -
- atomic_read(&zcache_eph_pageframes_atomic) -
- atomic_read(&zcache_pers_pageframes_atomic);
-};
-/* but for the rest of these, counting races are ok */
+/* Used by this code. */
static ssize_t zcache_flush_total;
static ssize_t zcache_flush_found;
static ssize_t zcache_flobj_total;
@@ -285,138 +165,10 @@ static ssize_t zcache_last_active_anon_pageframes;
static ssize_t zcache_last_inactive_anon_pageframes;
static ssize_t zcache_eph_nonactive_puts_ignored;
static ssize_t zcache_pers_nonactive_puts_ignored;
+#ifdef CONFIG_ZCACHE_WRITEBACK
static ssize_t zcache_writtenback_pages;
static ssize_t zcache_outstanding_writeback_pages;
-
-#ifdef CONFIG_DEBUG_FS
-#include <linux/debugfs.h>
-#define zdfs debugfs_create_size_t
-#define zdfs64 debugfs_create_u64
-static int zcache_debugfs_init(void)
-{
- struct dentry *root = debugfs_create_dir("zcache", NULL);
- if (root == NULL)
- return -ENXIO;
-
- zdfs("obj_count", S_IRUGO, root, &zcache_obj_count);
- zdfs("obj_count_max", S_IRUGO, root, &zcache_obj_count_max);
- zdfs("objnode_count", S_IRUGO, root, &zcache_objnode_count);
- zdfs("objnode_count_max", S_IRUGO, root, &zcache_objnode_count_max);
- zdfs("flush_total", S_IRUGO, root, &zcache_flush_total);
- zdfs("flush_found", S_IRUGO, root, &zcache_flush_found);
- zdfs("flobj_total", S_IRUGO, root, &zcache_flobj_total);
- zdfs("flobj_found", S_IRUGO, root, &zcache_flobj_found);
- zdfs("failed_eph_puts", S_IRUGO, root, &zcache_failed_eph_puts);
- zdfs("failed_pers_puts", S_IRUGO, root, &zcache_failed_pers_puts);
- zdfs("failed_get_free_pages", S_IRUGO, root,
- &zcache_failed_getfreepages);
- zdfs("failed_alloc", S_IRUGO, root, &zcache_failed_alloc);
- zdfs("put_to_flush", S_IRUGO, root, &zcache_put_to_flush);
- zdfs("compress_poor", S_IRUGO, root, &zcache_compress_poor);
- zdfs("mean_compress_poor", S_IRUGO, root, &zcache_mean_compress_poor);
- zdfs("eph_ate_tail", S_IRUGO, root, &zcache_eph_ate_tail);
- zdfs("eph_ate_tail_failed", S_IRUGO, root, &zcache_eph_ate_tail_failed);
- zdfs("pers_ate_eph", S_IRUGO, root, &zcache_pers_ate_eph);
- zdfs("pers_ate_eph_failed", S_IRUGO, root, &zcache_pers_ate_eph_failed);
- zdfs("evicted_eph_zpages", S_IRUGO, root, &zcache_evicted_eph_zpages);
- zdfs("evicted_eph_pageframes", S_IRUGO, root,
- &zcache_evicted_eph_pageframes);
- zdfs("eph_pageframes", S_IRUGO, root, &zcache_eph_pageframes);
- zdfs("eph_pageframes_max", S_IRUGO, root, &zcache_eph_pageframes_max);
- zdfs("pers_pageframes", S_IRUGO, root, &zcache_pers_pageframes);
- zdfs("pers_pageframes_max", S_IRUGO, root, &zcache_pers_pageframes_max);
- zdfs("eph_zpages", S_IRUGO, root, &zcache_eph_zpages);
- zdfs("eph_zpages_max", S_IRUGO, root, &zcache_eph_zpages_max);
- zdfs("pers_zpages", S_IRUGO, root, &zcache_pers_zpages);
- zdfs("pers_zpages_max", S_IRUGO, root, &zcache_pers_zpages_max);
- zdfs("last_active_file_pageframes", S_IRUGO, root,
- &zcache_last_active_file_pageframes);
- zdfs("last_inactive_file_pageframes", S_IRUGO, root,
- &zcache_last_inactive_file_pageframes);
- zdfs("last_active_anon_pageframes", S_IRUGO, root,
- &zcache_last_active_anon_pageframes);
- zdfs("last_inactive_anon_pageframes", S_IRUGO, root,
- &zcache_last_inactive_anon_pageframes);
- zdfs("eph_nonactive_puts_ignored", S_IRUGO, root,
- &zcache_eph_nonactive_puts_ignored);
- zdfs("pers_nonactive_puts_ignored", S_IRUGO, root,
- &zcache_pers_nonactive_puts_ignored);
- zdfs64("eph_zbytes", S_IRUGO, root, &zcache_eph_zbytes);
- zdfs64("eph_zbytes_max", S_IRUGO, root, &zcache_eph_zbytes_max);
- zdfs64("pers_zbytes", S_IRUGO, root, &zcache_pers_zbytes);
- zdfs64("pers_zbytes_max", S_IRUGO, root, &zcache_pers_zbytes_max);
- zdfs("outstanding_writeback_pages", S_IRUGO, root,
- &zcache_outstanding_writeback_pages);
- zdfs("writtenback_pages", S_IRUGO, root, &zcache_writtenback_pages);
- return 0;
-}
-#undef zdebugfs
-#undef zdfs64
#endif
-
-/* developers can call this in case of ooms, e.g. to find memory leaks */
-void zcache_dump(void)
-{
- pr_debug("zcache: obj_count=%zd\n", zcache_obj_count);
- pr_debug("zcache: obj_count_max=%zd\n", zcache_obj_count_max);
- pr_debug("zcache: objnode_count=%zd\n", zcache_objnode_count);
- pr_debug("zcache: objnode_count_max=%zd\n", zcache_objnode_count_max);
- pr_debug("zcache: flush_total=%zd\n", zcache_flush_total);
- pr_debug("zcache: flush_found=%zd\n", zcache_flush_found);
- pr_debug("zcache: flobj_total=%zd\n", zcache_flobj_total);
- pr_debug("zcache: flobj_found=%zd\n", zcache_flobj_found);
- pr_debug("zcache: failed_eph_puts=%zd\n", zcache_failed_eph_puts);
- pr_debug("zcache: failed_pers_puts=%zd\n", zcache_failed_pers_puts);
- pr_debug("zcache: failed_get_free_pages=%zd\n",
- zcache_failed_getfreepages);
- pr_debug("zcache: failed_alloc=%zd\n", zcache_failed_alloc);
- pr_debug("zcache: put_to_flush=%zd\n", zcache_put_to_flush);
- pr_debug("zcache: compress_poor=%zd\n", zcache_compress_poor);
- pr_debug("zcache: mean_compress_poor=%zd\n",
- zcache_mean_compress_poor);
- pr_debug("zcache: eph_ate_tail=%zd\n", zcache_eph_ate_tail);
- pr_debug("zcache: eph_ate_tail_failed=%zd\n",
- zcache_eph_ate_tail_failed);
- pr_debug("zcache: pers_ate_eph=%zd\n", zcache_pers_ate_eph);
- pr_debug("zcache: pers_ate_eph_failed=%zd\n",
- zcache_pers_ate_eph_failed);
- pr_debug("zcache: evicted_eph_zpages=%zd\n", zcache_evicted_eph_zpages);
- pr_debug("zcache: evicted_eph_pageframes=%zd\n",
- zcache_evicted_eph_pageframes);
- pr_debug("zcache: eph_pageframes=%zd\n", zcache_eph_pageframes);
- pr_debug("zcache: eph_pageframes_max=%zd\n", zcache_eph_pageframes_max);
- pr_debug("zcache: pers_pageframes=%zd\n", zcache_pers_pageframes);
- pr_debug("zcache: pers_pageframes_max=%zd\n",
- zcache_pers_pageframes_max);
- pr_debug("zcache: eph_zpages=%zd\n", zcache_eph_zpages);
- pr_debug("zcache: eph_zpages_max=%zd\n", zcache_eph_zpages_max);
- pr_debug("zcache: pers_zpages=%zd\n", zcache_pers_zpages);
- pr_debug("zcache: pers_zpages_max=%zd\n", zcache_pers_zpages_max);
- pr_debug("zcache: last_active_file_pageframes=%zd\n",
- zcache_last_active_file_pageframes);
- pr_debug("zcache: last_inactive_file_pageframes=%zd\n",
- zcache_last_inactive_file_pageframes);
- pr_debug("zcache: last_active_anon_pageframes=%zd\n",
- zcache_last_active_anon_pageframes);
- pr_debug("zcache: last_inactive_anon_pageframes=%zd\n",
- zcache_last_inactive_anon_pageframes);
- pr_debug("zcache: eph_nonactive_puts_ignored=%zd\n",
- zcache_eph_nonactive_puts_ignored);
- pr_debug("zcache: pers_nonactive_puts_ignored=%zd\n",
- zcache_pers_nonactive_puts_ignored);
- pr_debug("zcache: eph_zbytes=%llu\n",
- zcache_eph_zbytes);
- pr_debug("zcache: eph_zbytes_max=%llu\n",
- zcache_eph_zbytes_max);
- pr_debug("zcache: pers_zbytes=%llu\n",
- zcache_pers_zbytes);
- pr_debug("zcache: pers_zbytes_max=%llu\n",
- zcache_pers_zbytes_max);
- pr_debug("zcache: outstanding_writeback_pages=%zd\n",
- zcache_outstanding_writeback_pages);
- pr_debug("zcache: writtenback_pages=%zd\n", zcache_writtenback_pages);
-}
-
/*
* zcache core code starts here
*/