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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 /fs/f2fs | |
| parent | a56c7c6fb3c60857c1335bcb8b914e6f65655486 (diff) | |
| download | op-kernel-dev-b8c2940048adf4b2fcc5ae738f2bd4821ebf6a8a.zip op-kernel-dev-b8c2940048adf4b2fcc5ae738f2bd4821ebf6a8a.tar.gz | |
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 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/data.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index d4f1c74..2285376 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1032,6 +1032,9 @@ static int f2fs_read_data_pages(struct file *file, struct list_head *pages, unsigned nr_pages) { struct inode *inode = file->f_mapping->host; + struct page *page = list_entry(pages->prev, struct page, lru); + + trace_f2fs_readpages(inode, page, nr_pages); /* If the file has inline data, skip readpages */ if (f2fs_has_inline_data(inode)) |
