diff options
Diffstat (limited to 'drivers/staging/zcache/debug.c')
-rw-r--r-- | drivers/staging/zcache/debug.c | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/drivers/staging/zcache/debug.c b/drivers/staging/zcache/debug.c deleted file mode 100644 index daa26919b886..000000000000 --- a/drivers/staging/zcache/debug.c +++ /dev/null @@ -1,107 +0,0 @@ -#include <linux/atomic.h> -#include "debug.h" - -#ifdef CONFIG_ZCACHE_DEBUG -#include <linux/debugfs.h> - -ssize_t zcache_obj_count; -ssize_t zcache_obj_count_max; -ssize_t zcache_objnode_count; -ssize_t zcache_objnode_count_max; -u64 zcache_eph_zbytes; -u64 zcache_eph_zbytes_max; -u64 zcache_pers_zbytes_max; -ssize_t zcache_eph_pageframes_max; -ssize_t zcache_pers_pageframes_max; -ssize_t zcache_pageframes_alloced; -ssize_t zcache_pageframes_freed; -ssize_t zcache_eph_zpages; -ssize_t zcache_eph_zpages_max; -ssize_t zcache_pers_zpages_max; -ssize_t zcache_flush_total; -ssize_t zcache_flush_found; -ssize_t zcache_flobj_total; -ssize_t zcache_flobj_found; -ssize_t zcache_failed_eph_puts; -ssize_t zcache_failed_pers_puts; -ssize_t zcache_failed_getfreepages; -ssize_t zcache_failed_alloc; -ssize_t zcache_put_to_flush; -ssize_t zcache_compress_poor; -ssize_t zcache_mean_compress_poor; -ssize_t zcache_eph_ate_tail; -ssize_t zcache_eph_ate_tail_failed; -ssize_t zcache_pers_ate_eph; -ssize_t zcache_pers_ate_eph_failed; -ssize_t zcache_evicted_eph_zpages; -ssize_t zcache_evicted_eph_pageframes; -ssize_t zcache_zero_filled_pages; -ssize_t zcache_zero_filled_pages_max; - -#define ATTR(x) { .name = #x, .val = &zcache_##x, } -static struct debug_entry { - const char *name; - ssize_t *val; -} attrs[] = { - ATTR(obj_count), ATTR(obj_count_max), - ATTR(objnode_count), ATTR(objnode_count_max), - ATTR(flush_total), ATTR(flush_found), - ATTR(flobj_total), ATTR(flobj_found), - ATTR(failed_eph_puts), ATTR(failed_pers_puts), - ATTR(failed_getfreepages), ATTR(failed_alloc), - ATTR(put_to_flush), - ATTR(compress_poor), ATTR(mean_compress_poor), - ATTR(eph_ate_tail), ATTR(eph_ate_tail_failed), - ATTR(pers_ate_eph), ATTR(pers_ate_eph_failed), - ATTR(evicted_eph_zpages), ATTR(evicted_eph_pageframes), - ATTR(eph_pageframes), ATTR(eph_pageframes_max), - ATTR(pers_pageframes), ATTR(pers_pageframes_max), - ATTR(eph_zpages), ATTR(eph_zpages_max), - ATTR(pers_zpages), ATTR(pers_zpages_max), - ATTR(last_active_file_pageframes), - ATTR(last_inactive_file_pageframes), - ATTR(last_active_anon_pageframes), - ATTR(last_inactive_anon_pageframes), - ATTR(eph_nonactive_puts_ignored), - ATTR(pers_nonactive_puts_ignored), - ATTR(zero_filled_pages), -#ifdef CONFIG_ZCACHE_WRITEBACK - ATTR(outstanding_writeback_pages), - ATTR(writtenback_pages), -#endif -}; -#undef ATTR -int zcache_debugfs_init(void) -{ - unsigned int i; - struct dentry *root = debugfs_create_dir("zcache", NULL); - if (root == NULL) - return -ENXIO; - - for (i = 0; i < ARRAY_SIZE(attrs); i++) - if (!debugfs_create_size_t(attrs[i].name, S_IRUGO, root, attrs[i].val)) - goto out; - - debugfs_create_u64("eph_zbytes", S_IRUGO, root, &zcache_eph_zbytes); - debugfs_create_u64("eph_zbytes_max", S_IRUGO, root, &zcache_eph_zbytes_max); - debugfs_create_u64("pers_zbytes", S_IRUGO, root, &zcache_pers_zbytes); - debugfs_create_u64("pers_zbytes_max", S_IRUGO, root, &zcache_pers_zbytes_max); - - return 0; -out: - return -ENODEV; -} - -/* developers can call this in case of ooms, e.g. to find memory leaks */ -void zcache_dump(void) -{ - unsigned int i; - for (i = 0; i < ARRAY_SIZE(attrs); i++) - pr_debug("zcache: %s=%zu\n", attrs[i].name, *attrs[i].val); - - pr_debug("zcache: eph_zbytes=%llu\n", (unsigned long long)zcache_eph_zbytes); - pr_debug("zcache: eph_zbytes_max=%llu\n", (unsigned long long)zcache_eph_zbytes_max); - pr_debug("zcache: pers_zbytes=%llu\n", (unsigned long long)zcache_pers_zbytes); - pr_debug("zcache: pers_zbytes_max=%llu\n", (unsigned long long)zcache_pers_zbytes_max); -} -#endif |