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Diffstat (limited to 'drivers/staging/zcache/debug.c')
-rw-r--r--drivers/staging/zcache/debug.c107
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