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Commit 95bdaee2 authored by Konrad Rzeszutek Wilk's avatar Konrad Rzeszutek Wilk Committed by Greg Kroah-Hartman
Browse files

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: default avatarDan Magenheimer <dan.magenheimer@oracle.com>
[v1: Fixed conflicts due to rebase]
Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a96138be

drivers/staging/zcache/Makefile

+1 −0
Original line number Diff line number Diff line 
zcache-y	:=		zcache-main.o tmem.o zbud.o

zcache-$(CONFIG_ZCACHE_DEBUG) += debug.o

zcache-$(CONFIG_RAMSTER)	+=	ramster/ramster.o ramster/r2net.o

zcache-$(CONFIG_RAMSTER)	+=	ramster/nodemanager.o ramster/tcp.o

zcache-$(CONFIG_RAMSTER)	+=	ramster/heartbeat.o ramster/masklog.o

drivers/staging/zcache/debug.c

0 → 100644
+132 −0
Original line number Diff line number Diff line 
#include <linux/atomic.h>

#include "debug.h"



#ifdef CONFIG_DEBUG_FS

#include <linux/debugfs.h>

#define	zdfs	debugfs_create_size_t

#define	zdfs64	debugfs_create_u64

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



/* 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);

}

#endif

drivers/staging/zcache/debug.h

0 → 100644
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Original line number Diff line number Diff line 
#ifdef CONFIG_ZCACHE_DEBUG



/* 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 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 ssize_t zcache_objnode_count;

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);

};

extern  u64 zcache_pers_zbytes;

static atomic_long_t zcache_pers_zbytes_atomic = ATOMIC_INIT(0);

static u64 zcache_pers_zbytes_max;

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);

}

extern ssize_t zcache_eph_pageframes;

static atomic_t zcache_eph_pageframes_atomic = ATOMIC_INIT(0);

static ssize_t zcache_eph_pageframes_max;

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);

};

extern ssize_t zcache_pers_pageframes;

static atomic_t zcache_pers_pageframes_atomic = ATOMIC_INIT(0);

static ssize_t zcache_pers_pageframes_max;

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 ssize_t zcache_pageframes_alloced;

static atomic_t zcache_pageframes_alloced_atomic = ATOMIC_INIT(0);

static inline void inc_zcache_pageframes_alloced(void)

{

	zcache_pageframes_alloced = atomic_inc_return(&zcache_pageframes_alloced_atomic);

};

static ssize_t zcache_pageframes_freed;

static atomic_t zcache_pageframes_freed_atomic = ATOMIC_INIT(0);

static inline void inc_zcache_pageframes_freed(void)

{

	zcache_pageframes_freed = atomic_inc_return(&zcache_pageframes_freed_atomic);

}

static ssize_t zcache_eph_zpages;

static atomic_t zcache_eph_zpages_atomic = ATOMIC_INIT(0);

static ssize_t zcache_eph_zpages_max;

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);

}

extern ssize_t zcache_pers_zpages;

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);

}



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 */

extern ssize_t zcache_flush_total;

extern ssize_t zcache_flush_found;

extern ssize_t zcache_flobj_total;

extern ssize_t zcache_flobj_found;

extern ssize_t zcache_failed_eph_puts;

extern ssize_t zcache_failed_pers_puts;

extern ssize_t zcache_failed_getfreepages;

extern ssize_t zcache_failed_alloc;

extern ssize_t zcache_put_to_flush;

extern ssize_t zcache_compress_poor;

extern ssize_t zcache_mean_compress_poor;

extern ssize_t zcache_eph_ate_tail;

extern ssize_t zcache_eph_ate_tail_failed;

extern ssize_t zcache_pers_ate_eph;

extern ssize_t zcache_pers_ate_eph_failed;

extern ssize_t zcache_evicted_eph_zpages;

extern ssize_t zcache_evicted_eph_pageframes;

extern ssize_t zcache_last_active_file_pageframes;

extern ssize_t zcache_last_inactive_file_pageframes;

extern ssize_t zcache_last_active_anon_pageframes;

extern ssize_t zcache_last_inactive_anon_pageframes;

extern ssize_t zcache_eph_nonactive_puts_ignored;

extern ssize_t zcache_pers_nonactive_puts_ignored;

#ifdef CONFIG_ZCACHE_WRITEBACK

extern ssize_t zcache_writtenback_pages;

extern ssize_t zcache_outstanding_writeback_pages;

#endif



int zcache_debugfs_init(void);

#else

static inline void inc_zcache_obj_count(void) { };

static inline void dec_zcache_obj_count(void) { };

static inline void inc_zcache_objnode_count(void) { };

static inline void dec_zcache_objnode_count(void) { };

static inline void inc_zcache_eph_zbytes(unsigned clen) { };

static inline void dec_zcache_eph_zbytes(unsigned zsize) { };

static inline void inc_zcache_pers_zbytes(unsigned clen) { };

static inline void dec_zcache_pers_zbytes(unsigned zsize) { };

static inline void inc_zcache_eph_pageframes(void) { };

static inline void dec_zcache_eph_pageframes(void) { };

static inline void inc_zcache_pers_pageframes(void) { };

static inline void dec_zcache_pers_pageframes(void) { };

static inline void inc_zcache_pageframes_alloced(void) { };

static inline void inc_zcache_pageframes_freed(void) { };

static inline void inc_zcache_eph_zpages(void) { };

static inline void dec_zcache_eph_zpages(unsigned zpages) { };

static inline void inc_zcache_pers_zpages(void) { };

static inline void dec_zcache_pers_zpages(unsigned zpages) { };

static inline unsigned long curr_pageframes_count(void)

{

	return 0;

};

static inline int zcache_debugfs_init(void)

{

	return 0;

};

#endif

drivers/staging/zcache/zcache-main.c

+8 −256

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