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| author | Hitoshi Mitake <mitake.hitoshi@lab.ntt.co.jp> | 2015-11-06 16:32:08 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-06 17:50:42 -0800 |
| commit | a9cd207c23ca4fa5bd5f1092e867e87542e349a3 (patch) | |
| tree | e56c2224b609c25846b2bb0efcfa4e000b54cda7 /include/trace | |
| parent | 83eec5e6dd10f0b1ab83ee660c8be883b3da7ba8 (diff) | |
| download | linux-a9cd207c23ca4fa5bd5f1092e867e87542e349a3.tar.gz linux-a9cd207c23ca4fa5bd5f1092e867e87542e349a3.tar.bz2 linux-a9cd207c23ca4fa5bd5f1092e867e87542e349a3.zip | |
nilfs2: add tracepoints for analyzing reading and writing metadata files
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>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/nilfs2.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/include/trace/events/nilfs2.h b/include/trace/events/nilfs2.h index 1b65ba687925..c7805818fcc6 100644 --- a/include/trace/events/nilfs2.h +++ b/include/trace/events/nilfs2.h @@ -162,6 +162,60 @@ TRACE_EVENT(nilfs2_segment_usage_freed, __entry->segnum) ); +TRACE_EVENT(nilfs2_mdt_insert_new_block, + TP_PROTO(struct inode *inode, + unsigned long ino, + unsigned long block), + + TP_ARGS(inode, ino, block), + + TP_STRUCT__entry( + __field(struct inode *, inode) + __field(unsigned long, ino) + __field(unsigned long, block) + ), + + TP_fast_assign( + __entry->inode = inode; + __entry->ino = ino; + __entry->block = block; + ), + + TP_printk("inode = %p ino = %lu block = %lu", + __entry->inode, + __entry->ino, + __entry->block) +); + +TRACE_EVENT(nilfs2_mdt_submit_block, + TP_PROTO(struct inode *inode, + unsigned long ino, + unsigned long blkoff, + int mode), + + TP_ARGS(inode, ino, blkoff, mode), + + TP_STRUCT__entry( + __field(struct inode *, inode) + __field(unsigned long, ino) + __field(unsigned long, blkoff) + __field(int, mode) + ), + + TP_fast_assign( + __entry->inode = inode; + __entry->ino = ino; + __entry->blkoff = blkoff; + __entry->mode = mode; + ), + + TP_printk("inode = %p ino = %lu blkoff = %lu mode = %x", + __entry->inode, + __entry->ino, + __entry->blkoff, + __entry->mode) +); + #endif /* _TRACE_NILFS2_H */ /* This part must be outside protection */ |