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| author | Chao Yu <chao2.yu@samsung.com> | 2015-10-12 17:02:26 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-10-12 14:00:34 -0700 |
| commit | b8c2940048adf4b2fcc5ae738f2bd4821ebf6a8a (patch) | |
| tree | e72060649cd483751b38400284693b3295ac42ac /include/trace | |
| parent | a56c7c6fb3c60857c1335bcb8b914e6f65655486 (diff) | |
| download | blackbird-op-linux-b8c2940048adf4b2fcc5ae738f2bd4821ebf6a8a.tar.gz blackbird-op-linux-b8c2940048adf4b2fcc5ae738f2bd4821ebf6a8a.zip | |
f2fs: add a tracepoint for f2fs_read_data_pages
This patch adds a tracepoint for f2fs_read_data_pages to trace when pages
are readahead by VFS.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/f2fs.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h index 7de751d5763b..00b4a6308249 100644 --- a/include/trace/events/f2fs.h +++ b/include/trace/events/f2fs.h @@ -1028,6 +1028,32 @@ TRACE_EVENT(f2fs_writepages, __entry->for_sync) ); +TRACE_EVENT(f2fs_readpages, + + TP_PROTO(struct inode *inode, struct page *page, unsigned int nrpage), + + TP_ARGS(inode, page, nrpage), + + TP_STRUCT__entry( + __field(dev_t, dev) + __field(ino_t, ino) + __field(pgoff_t, start) + __field(unsigned int, nrpage) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->start = page->index; + __entry->nrpage = nrpage; + ), + + TP_printk("dev = (%d,%d), ino = %lu, start = %lu nrpage = %u", + show_dev_ino(__entry), + (unsigned long)__entry->start, + __entry->nrpage) +); + TRACE_EVENT(f2fs_write_checkpoint, TP_PROTO(struct super_block *sb, int reason, char *msg), |
