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ccefffe74f
Add some counters to track allocation and freeing of our structures that are subject to shrinking. This lets us eyeball the counters to see if we have runaway leaks. Signed-off-by: Zach Brown <zab@versity.com>
84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
#ifndef _SCOUTFS_COUNTERS_H_
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#define _SCOUTFS_COUNTERS_H_
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#include <linux/kobject.h>
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#include <linux/completion.h>
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#include <linux/percpu_counter.h>
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#include "super.h"
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/*
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* We only have to define each counter here and it'll be enumerated in
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* other places by this macro. Don't forget to update LAST_COUNTER.
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*/
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#define EXPAND_EACH_COUNTER \
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EXPAND_COUNTER(alloc_alloc) \
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EXPAND_COUNTER(alloc_free) \
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EXPAND_COUNTER(seg_alloc) \
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EXPAND_COUNTER(seg_shrink) \
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EXPAND_COUNTER(seg_free) \
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EXPAND_COUNTER(trans_level0_seg_write) \
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EXPAND_COUNTER(manifest_compact_migrate) \
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EXPAND_COUNTER(compact_operations) \
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EXPAND_COUNTER(compact_segment_moved) \
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EXPAND_COUNTER(compact_segment_read) \
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EXPAND_COUNTER(compact_segment_written) \
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EXPAND_COUNTER(compact_sticky_upper) \
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EXPAND_COUNTER(compact_sticky_written) \
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EXPAND_COUNTER(data_readpage) \
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EXPAND_COUNTER(data_write_begin) \
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EXPAND_COUNTER(data_write_end) \
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EXPAND_COUNTER(data_invalidatepage) \
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EXPAND_COUNTER(data_writepage) \
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EXPAND_COUNTER(data_end_writeback_page) \
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EXPAND_COUNTER(item_alloc) \
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EXPAND_COUNTER(item_free) \
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EXPAND_COUNTER(item_create) \
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EXPAND_COUNTER(item_lookup_hit) \
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EXPAND_COUNTER(item_lookup_miss) \
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EXPAND_COUNTER(item_delete) \
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EXPAND_COUNTER(item_range_alloc) \
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EXPAND_COUNTER(item_range_free) \
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EXPAND_COUNTER(item_range_hit) \
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EXPAND_COUNTER(item_range_miss) \
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EXPAND_COUNTER(item_range_insert) \
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EXPAND_COUNTER(item_shrink_no_items) \
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EXPAND_COUNTER(item_shrink_outside) \
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EXPAND_COUNTER(item_shrink_dirty_abort) \
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EXPAND_COUNTER(item_shrink_skip_inced) \
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EXPAND_COUNTER(item_shrink_range) \
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EXPAND_COUNTER(item_shrink) \
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EXPAND_COUNTER(lock_alloc) \
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EXPAND_COUNTER(lock_free)
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#define FIRST_COUNTER alloc_alloc
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#define LAST_COUNTER lock_free
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#undef EXPAND_COUNTER
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#define EXPAND_COUNTER(which) struct percpu_counter which;
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struct scoutfs_counters {
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/* $sysfs/fs/scoutfs/$id/counters/ */
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struct kobject kobj;
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struct completion comp;
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EXPAND_EACH_COUNTER
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};
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#define scoutfs_foreach_counter(sb, pcpu) \
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for (pcpu = &SCOUTFS_SB(sb)->counters->FIRST_COUNTER; \
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pcpu <= &SCOUTFS_SB(sb)->counters->LAST_COUNTER; \
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pcpu++)
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#define scoutfs_inc_counter(sb, which) \
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percpu_counter_inc(&SCOUTFS_SB(sb)->counters->which)
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#define scoutfs_add_counter(sb, which, cnt) \
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percpu_counter_add(&SCOUTFS_SB(sb)->counters->which, cnt)
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void __init scoutfs_init_counters(void);
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int scoutfs_setup_counters(struct super_block *sb);
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void scoutfs_destroy_counters(struct super_block *sb);
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#endif
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