leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity
b8d96a30b6
linux/include/trace/events/bcache.h
Christoph Hellwig ef295ecf09 block: better op and flags encoding 
Now that we don't need the common flags to overflow outside the range
of a 32-bit type we can encode them the same way for both the bio and
request fields.  This in addition allows us to place the operation
first (and make some room for more ops while we're at it) and to
stop having to shift around the operation values.

In addition this allows passing around only one value in the block layer
instead of two (and eventuall also in the file systems, but we can do
that later) and thus clean up a lot of code.

Last but not least this allows decreasing the size of the cmd_flags
field in struct request to 32-bits.  Various functions passing this
value could also be updated, but I'd like to avoid the churn for now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2016-10-28 08:48:16 -06:00

483 lines
11 KiB
C
Raw Blame History

#undef TRACE_SYSTEM
#define TRACE_SYSTEM bcache
#if !defined(_TRACE_BCACHE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_BCACHE_H
#include <linux/tracepoint.h>
DECLARE_EVENT_CLASS(bcache_request,
TP_PROTO(struct bcache_device *d, struct bio *bio),
TP_ARGS(d, bio),
TP_STRUCT__entry(
__field(dev_t, dev )
__field(unsigned int, orig_major )
__field(unsigned int, orig_minor )
__field(sector_t, sector )
__field(dev_t, orig_sector )
__field(unsigned int, nr_sector )
__array(char, rwbs, 6 )
),
TP_fast_assign(
__entry->dev = bio->bi_bdev->bd_dev;
__entry->orig_major = d->disk->major;
__entry->orig_minor = d->disk->first_minor;
__entry->sector = bio->bi_iter.bi_sector;
__entry->orig_sector = bio->bi_iter.bi_sector - 16;
__entry->nr_sector = bio->bi_iter.bi_size >> 9;
blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size);
),
TP_printk("%d,%d %s %llu + %u (from %d,%d @ %llu)",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->rwbs, (unsigned long long)__entry->sector,
__entry->nr_sector, __entry->orig_major, __entry->orig_minor,
(unsigned long long)__entry->orig_sector)
);
DECLARE_EVENT_CLASS(bkey,
TP_PROTO(struct bkey *k),
TP_ARGS(k),
TP_STRUCT__entry(
__field(u32, size )
__field(u32, inode )
__field(u64, offset )
__field(bool, dirty )
),
TP_fast_assign(
__entry->inode = KEY_INODE(k);
__entry->offset = KEY_OFFSET(k);
__entry->size = KEY_SIZE(k);
__entry->dirty = KEY_DIRTY(k);
),
TP_printk("%u:%llu len %u dirty %u", __entry->inode,
__entry->offset, __entry->size, __entry->dirty)
);
DECLARE_EVENT_CLASS(btree_node,
TP_PROTO(struct btree *b),
TP_ARGS(b),
TP_STRUCT__entry(
__field(size_t, bucket )
),
TP_fast_assign(
__entry->bucket = PTR_BUCKET_NR(b->c, &b->key, 0);
),
TP_printk("bucket %zu", __entry->bucket)
);
/* request.c */
DEFINE_EVENT(bcache_request, bcache_request_start,
TP_PROTO(struct bcache_device *d, struct bio *bio),
TP_ARGS(d, bio)
);
DEFINE_EVENT(bcache_request, bcache_request_end,
TP_PROTO(struct bcache_device *d, struct bio *bio),
TP_ARGS(d, bio)
);
DECLARE_EVENT_CLASS(bcache_bio,
TP_PROTO(struct bio *bio),
TP_ARGS(bio),
TP_STRUCT__entry(
__field(dev_t, dev )
__field(sector_t, sector )
__field(unsigned int, nr_sector )
__array(char, rwbs, 6 )
),
TP_fast_assign(
__entry->dev = bio->bi_bdev->bd_dev;
__entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio->bi_iter.bi_size >> 9;
blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size);
),
TP_printk("%d,%d %s %llu + %u",
MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
(unsigned long long)__entry->sector, __entry->nr_sector)
);
DEFINE_EVENT(bcache_bio, bcache_bypass_sequential,
TP_PROTO(struct bio *bio),
TP_ARGS(bio)
);
DEFINE_EVENT(bcache_bio, bcache_bypass_congested,
TP_PROTO(struct bio *bio),
TP_ARGS(bio)
);
TRACE_EVENT(bcache_read,
TP_PROTO(struct bio *bio, bool hit, bool bypass),
TP_ARGS(bio, hit, bypass),
TP_STRUCT__entry(
__field(dev_t, dev )
__field(sector_t, sector )
__field(unsigned int, nr_sector )
__array(char, rwbs, 6 )
__field(bool, cache_hit )
__field(bool, bypass )
),
TP_fast_assign(
__entry->dev = bio->bi_bdev->bd_dev;
__entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio->bi_iter.bi_size >> 9;
blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size);
__entry->cache_hit = hit;
__entry->bypass = bypass;
),
TP_printk("%d,%d %s %llu + %u hit %u bypass %u",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->rwbs, (unsigned long long)__entry->sector,
__entry->nr_sector, __entry->cache_hit, __entry->bypass)
);
TRACE_EVENT(bcache_write,
TP_PROTO(struct cache_set *c, u64 inode, struct bio *bio,
bool writeback, bool bypass),
TP_ARGS(c, inode, bio, writeback, bypass),
TP_STRUCT__entry(
__array(char, uuid, 16 )
__field(u64, inode )
__field(sector_t, sector )
__field(unsigned int, nr_sector )
__array(char, rwbs, 6 )
__field(bool, writeback )
__field(bool, bypass )
),
TP_fast_assign(
memcpy(__entry->uuid, c->sb.set_uuid, 16);
__entry->inode = inode;
__entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio->bi_iter.bi_size >> 9;
blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size);
__entry->writeback = writeback;
__entry->bypass = bypass;
),
TP_printk("%pU inode %llu %s %llu + %u hit %u bypass %u",
__entry->uuid, __entry->inode,
__entry->rwbs, (unsigned long long)__entry->sector,
__entry->nr_sector, __entry->writeback, __entry->bypass)
);
DEFINE_EVENT(bcache_bio, bcache_read_retry,
TP_PROTO(struct bio *bio),
TP_ARGS(bio)
);
DEFINE_EVENT(bkey, bcache_cache_insert,
TP_PROTO(struct bkey *k),
TP_ARGS(k)
);
/* Journal */
DECLARE_EVENT_CLASS(cache_set,
TP_PROTO(struct cache_set *c),
TP_ARGS(c),
TP_STRUCT__entry(
__array(char, uuid, 16 )
),
TP_fast_assign(
memcpy(__entry->uuid, c->sb.set_uuid, 16);
),
TP_printk("%pU", __entry->uuid)
);
DEFINE_EVENT(bkey, bcache_journal_replay_key,
TP_PROTO(struct bkey *k),
TP_ARGS(k)
);
DEFINE_EVENT(cache_set, bcache_journal_full,
TP_PROTO(struct cache_set *c),
TP_ARGS(c)
);
DEFINE_EVENT(cache_set, bcache_journal_entry_full,
TP_PROTO(struct cache_set *c),
TP_ARGS(c)
);
DEFINE_EVENT(bcache_bio, bcache_journal_write,
TP_PROTO(struct bio *bio),
TP_ARGS(bio)
);
/* Btree */
DEFINE_EVENT(cache_set, bcache_btree_cache_cannibalize,
TP_PROTO(struct cache_set *c),
TP_ARGS(c)
);
DEFINE_EVENT(btree_node, bcache_btree_read,
TP_PROTO(struct btree *b),
TP_ARGS(b)
);
TRACE_EVENT(bcache_btree_write,
TP_PROTO(struct btree *b),
TP_ARGS(b),
TP_STRUCT__entry(
__field(size_t, bucket )
__field(unsigned, block )
__field(unsigned, keys )
),
TP_fast_assign(
__entry->bucket = PTR_BUCKET_NR(b->c, &b->key, 0);
__entry->block = b->written;
__entry->keys = b->keys.set[b->keys.nsets].data->keys;
),
TP_printk("bucket %zu", __entry->bucket)
);
DEFINE_EVENT(btree_node, bcache_btree_node_alloc,
TP_PROTO(struct btree *b),
TP_ARGS(b)
);
DEFINE_EVENT(cache_set, bcache_btree_node_alloc_fail,
TP_PROTO(struct cache_set *c),
TP_ARGS(c)
);
DEFINE_EVENT(btree_node, bcache_btree_node_free,
TP_PROTO(struct btree *b),
TP_ARGS(b)
);
TRACE_EVENT(bcache_btree_gc_coalesce,
TP_PROTO(unsigned nodes),
TP_ARGS(nodes),
TP_STRUCT__entry(
__field(unsigned, nodes )
),
TP_fast_assign(
__entry->nodes = nodes;
),
TP_printk("coalesced %u nodes", __entry->nodes)
);
DEFINE_EVENT(cache_set, bcache_gc_start,
TP_PROTO(struct cache_set *c),
TP_ARGS(c)
);
DEFINE_EVENT(cache_set, bcache_gc_end,
TP_PROTO(struct cache_set *c),
TP_ARGS(c)
);
DEFINE_EVENT(bkey, bcache_gc_copy,
TP_PROTO(struct bkey *k),
TP_ARGS(k)
);
DEFINE_EVENT(bkey, bcache_gc_copy_collision,
TP_PROTO(struct bkey *k),
TP_ARGS(k)
);
TRACE_EVENT(bcache_btree_insert_key,
TP_PROTO(struct btree *b, struct bkey *k, unsigned op, unsigned status),
TP_ARGS(b, k, op, status),
TP_STRUCT__entry(
__field(u64, btree_node )
__field(u32, btree_level )
__field(u32, inode )
__field(u64, offset )
__field(u32, size )
__field(u8, dirty )
__field(u8, op )
__field(u8, status )
),
TP_fast_assign(
__entry->btree_node = PTR_BUCKET_NR(b->c, &b->key, 0);
__entry->btree_level = b->level;
__entry->inode = KEY_INODE(k);
__entry->offset = KEY_OFFSET(k);
__entry->size = KEY_SIZE(k);
__entry->dirty = KEY_DIRTY(k);
__entry->op = op;
__entry->status = status;
),
TP_printk("%u for %u at %llu(%u): %u:%llu len %u dirty %u",
__entry->status, __entry->op,
__entry->btree_node, __entry->btree_level,
__entry->inode, __entry->offset,
__entry->size, __entry->dirty)
);
DECLARE_EVENT_CLASS(btree_split,
TP_PROTO(struct btree *b, unsigned keys),
TP_ARGS(b, keys),
TP_STRUCT__entry(
__field(size_t, bucket )
__field(unsigned, keys )
),
TP_fast_assign(
__entry->bucket = PTR_BUCKET_NR(b->c, &b->key, 0);
__entry->keys = keys;
),
TP_printk("bucket %zu keys %u", __entry->bucket, __entry->keys)
);
DEFINE_EVENT(btree_split, bcache_btree_node_split,
TP_PROTO(struct btree *b, unsigned keys),
TP_ARGS(b, keys)
);
DEFINE_EVENT(btree_split, bcache_btree_node_compact,
TP_PROTO(struct btree *b, unsigned keys),
TP_ARGS(b, keys)
);
DEFINE_EVENT(btree_node, bcache_btree_set_root,
TP_PROTO(struct btree *b),
TP_ARGS(b)
);
TRACE_EVENT(bcache_keyscan,
TP_PROTO(unsigned nr_found,
unsigned start_inode, uint64_t start_offset,
unsigned end_inode, uint64_t end_offset),
TP_ARGS(nr_found,
start_inode, start_offset,
end_inode, end_offset),
TP_STRUCT__entry(
__field(__u32, nr_found )
__field(__u32, start_inode )
__field(__u64, start_offset )
__field(__u32, end_inode )
__field(__u64, end_offset )
),
TP_fast_assign(
__entry->nr_found = nr_found;
__entry->start_inode = start_inode;
__entry->start_offset = start_offset;
__entry->end_inode = end_inode;
__entry->end_offset = end_offset;
),
TP_printk("found %u keys from %u:%llu to %u:%llu", __entry->nr_found,
__entry->start_inode, __entry->start_offset,
__entry->end_inode, __entry->end_offset)
);
/* Allocator */
TRACE_EVENT(bcache_invalidate,
TP_PROTO(struct cache *ca, size_t bucket),
TP_ARGS(ca, bucket),
TP_STRUCT__entry(
__field(unsigned, sectors )
__field(dev_t, dev )
__field(__u64, offset )
),
TP_fast_assign(
__entry->dev = ca->bdev->bd_dev;
__entry->offset = bucket << ca->set->bucket_bits;
__entry->sectors = GC_SECTORS_USED(&ca->buckets[bucket]);
),
TP_printk("invalidated %u sectors at %d,%d sector=%llu",
__entry->sectors, MAJOR(__entry->dev),
MINOR(__entry->dev), __entry->offset)
);
TRACE_EVENT(bcache_alloc,
TP_PROTO(struct cache *ca, size_t bucket),
TP_ARGS(ca, bucket),
TP_STRUCT__entry(
__field(dev_t, dev )
__field(__u64, offset )
),
TP_fast_assign(
__entry->dev = ca->bdev->bd_dev;
__entry->offset = bucket << ca->set->bucket_bits;
),
TP_printk("allocated %d,%d sector=%llu", MAJOR(__entry->dev),
MINOR(__entry->dev), __entry->offset)
);
TRACE_EVENT(bcache_alloc_fail,
TP_PROTO(struct cache *ca, unsigned reserve),
TP_ARGS(ca, reserve),
TP_STRUCT__entry(
__field(dev_t, dev )
__field(unsigned, free )
__field(unsigned, free_inc )
__field(unsigned, blocked )
),
TP_fast_assign(
__entry->dev = ca->bdev->bd_dev;
__entry->free = fifo_used(&ca->free[reserve]);
__entry->free_inc = fifo_used(&ca->free_inc);
__entry->blocked = atomic_read(&ca->set->prio_blocked);
),
TP_printk("alloc fail %d,%d free %u free_inc %u blocked %u",
MAJOR(__entry->dev), MINOR(__entry->dev), __entry->free,
__entry->free_inc, __entry->blocked)
);
/* Background writeback */
DEFINE_EVENT(bkey, bcache_writeback,
TP_PROTO(struct bkey *k),
TP_ARGS(k)
);
DEFINE_EVENT(bkey, bcache_writeback_collision,
TP_PROTO(struct bkey *k),
TP_ARGS(k)
);
#endif /* _TRACE_BCACHE_H */
/* This part must be outside protection */
#include <trace/define_trace.h>
Reference in New Issue View Git Blame Copy Permalink