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#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
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