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a9cd207c23
This patch adds tracepoints for analyzing requests of reading and writing
metadata files. The tracepoints cover every in-place mdt files (cpfile,
sufile, and datfile).
Example of tracing mdt_insert_new_block():
cp-14635 [000] ...1 30598.199309: nilfs2_mdt_insert_new_block: inode = ffff88022a8d0178 ino = 3 block = 155
cp-14635 [000] ...1 30598.199520: nilfs2_mdt_insert_new_block: inode = ffff88022a8d0178 ino = 3 block = 5
cp-14635 [000] ...1 30598.200828: nilfs2_mdt_insert_new_block: inode = ffff88022a8d0178 ino = 3 block = 253
Signed-off-by: Hitoshi Mitake <mitake.hitoshi@lab.ntt.co.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: TK Kato <TK.Kato@wdc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
225 lines
5.2 KiB
C
225 lines
5.2 KiB
C
#undef TRACE_SYSTEM
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#define TRACE_SYSTEM nilfs2
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#if !defined(_TRACE_NILFS2_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_NILFS2_H
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#include <linux/tracepoint.h>
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struct nilfs_sc_info;
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#define show_collection_stage(type) \
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__print_symbolic(type, \
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{ NILFS_ST_INIT, "ST_INIT" }, \
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{ NILFS_ST_GC, "ST_GC" }, \
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{ NILFS_ST_FILE, "ST_FILE" }, \
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{ NILFS_ST_IFILE, "ST_IFILE" }, \
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{ NILFS_ST_CPFILE, "ST_CPFILE" }, \
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{ NILFS_ST_SUFILE, "ST_SUFILE" }, \
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{ NILFS_ST_DAT, "ST_DAT" }, \
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{ NILFS_ST_SR, "ST_SR" }, \
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{ NILFS_ST_DSYNC, "ST_DSYNC" }, \
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{ NILFS_ST_DONE, "ST_DONE"})
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TRACE_EVENT(nilfs2_collection_stage_transition,
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TP_PROTO(struct nilfs_sc_info *sci),
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TP_ARGS(sci),
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TP_STRUCT__entry(
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__field(void *, sci)
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__field(int, stage)
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),
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TP_fast_assign(
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__entry->sci = sci;
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__entry->stage = sci->sc_stage.scnt;
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),
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TP_printk("sci = %p stage = %s",
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__entry->sci,
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show_collection_stage(__entry->stage))
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);
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#ifndef TRACE_HEADER_MULTI_READ
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enum nilfs2_transaction_transition_state {
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TRACE_NILFS2_TRANSACTION_BEGIN,
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TRACE_NILFS2_TRANSACTION_COMMIT,
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TRACE_NILFS2_TRANSACTION_ABORT,
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TRACE_NILFS2_TRANSACTION_TRYLOCK,
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TRACE_NILFS2_TRANSACTION_LOCK,
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TRACE_NILFS2_TRANSACTION_UNLOCK,
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};
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#endif
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#define show_transaction_state(type) \
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__print_symbolic(type, \
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{ TRACE_NILFS2_TRANSACTION_BEGIN, "BEGIN" }, \
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{ TRACE_NILFS2_TRANSACTION_COMMIT, "COMMIT" }, \
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{ TRACE_NILFS2_TRANSACTION_ABORT, "ABORT" }, \
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{ TRACE_NILFS2_TRANSACTION_TRYLOCK, "TRYLOCK" }, \
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{ TRACE_NILFS2_TRANSACTION_LOCK, "LOCK" }, \
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{ TRACE_NILFS2_TRANSACTION_UNLOCK, "UNLOCK" })
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TRACE_EVENT(nilfs2_transaction_transition,
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TP_PROTO(struct super_block *sb,
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struct nilfs_transaction_info *ti,
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int count,
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unsigned int flags,
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enum nilfs2_transaction_transition_state state),
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TP_ARGS(sb, ti, count, flags, state),
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TP_STRUCT__entry(
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__field(void *, sb)
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__field(void *, ti)
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__field(int, count)
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__field(unsigned int, flags)
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__field(int, state)
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),
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TP_fast_assign(
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__entry->sb = sb;
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__entry->ti = ti;
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__entry->count = count;
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__entry->flags = flags;
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__entry->state = state;
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),
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TP_printk("sb = %p ti = %p count = %d flags = %x state = %s",
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__entry->sb,
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__entry->ti,
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__entry->count,
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__entry->flags,
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show_transaction_state(__entry->state))
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);
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TRACE_EVENT(nilfs2_segment_usage_check,
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TP_PROTO(struct inode *sufile,
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__u64 segnum,
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unsigned long cnt),
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TP_ARGS(sufile, segnum, cnt),
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TP_STRUCT__entry(
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__field(struct inode *, sufile)
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__field(__u64, segnum)
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__field(unsigned long, cnt)
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),
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TP_fast_assign(
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__entry->sufile = sufile;
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__entry->segnum = segnum;
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__entry->cnt = cnt;
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),
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TP_printk("sufile = %p segnum = %llu cnt = %lu",
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__entry->sufile,
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__entry->segnum,
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__entry->cnt)
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);
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TRACE_EVENT(nilfs2_segment_usage_allocated,
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TP_PROTO(struct inode *sufile,
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__u64 segnum),
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TP_ARGS(sufile, segnum),
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TP_STRUCT__entry(
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__field(struct inode *, sufile)
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__field(__u64, segnum)
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),
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TP_fast_assign(
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__entry->sufile = sufile;
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__entry->segnum = segnum;
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),
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TP_printk("sufile = %p segnum = %llu",
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__entry->sufile,
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__entry->segnum)
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);
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TRACE_EVENT(nilfs2_segment_usage_freed,
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TP_PROTO(struct inode *sufile,
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__u64 segnum),
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TP_ARGS(sufile, segnum),
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TP_STRUCT__entry(
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__field(struct inode *, sufile)
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__field(__u64, segnum)
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),
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TP_fast_assign(
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__entry->sufile = sufile;
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__entry->segnum = segnum;
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),
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TP_printk("sufile = %p segnum = %llu",
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__entry->sufile,
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__entry->segnum)
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);
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TRACE_EVENT(nilfs2_mdt_insert_new_block,
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TP_PROTO(struct inode *inode,
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unsigned long ino,
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unsigned long block),
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TP_ARGS(inode, ino, block),
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TP_STRUCT__entry(
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__field(struct inode *, inode)
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__field(unsigned long, ino)
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__field(unsigned long, block)
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),
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TP_fast_assign(
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__entry->inode = inode;
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__entry->ino = ino;
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__entry->block = block;
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),
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TP_printk("inode = %p ino = %lu block = %lu",
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__entry->inode,
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__entry->ino,
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__entry->block)
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);
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TRACE_EVENT(nilfs2_mdt_submit_block,
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TP_PROTO(struct inode *inode,
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unsigned long ino,
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unsigned long blkoff,
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int mode),
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TP_ARGS(inode, ino, blkoff, mode),
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TP_STRUCT__entry(
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__field(struct inode *, inode)
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__field(unsigned long, ino)
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__field(unsigned long, blkoff)
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__field(int, mode)
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),
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TP_fast_assign(
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__entry->inode = inode;
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__entry->ino = ino;
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__entry->blkoff = blkoff;
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__entry->mode = mode;
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),
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TP_printk("inode = %p ino = %lu blkoff = %lu mode = %x",
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__entry->inode,
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__entry->ino,
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__entry->blkoff,
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__entry->mode)
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);
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#endif /* _TRACE_NILFS2_H */
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/* This part must be outside protection */
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#undef TRACE_INCLUDE_FILE
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#define TRACE_INCLUDE_FILE nilfs2
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#include <trace/define_trace.h>
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