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authorChao Yu <chao2.yu@samsung.com>2014-07-31 21:11:22 +0800
committerJaegeuk Kim <jaegeuk@kernel.org>2014-08-02 07:34:46 -0700
commit70407fad85f2ec87a0cf56057c3267cd3aa22768 (patch)
treef408c7768f8c0af862c0fd954dba6331554152ff /fs
parentb3582c68920105e29d219714d8a6fbde25a43379 (diff)
downloadlinux-70407fad85f2ec87a0cf56057c3267cd3aa22768.tar.bz2
f2fs: add tracepoint for f2fs_direct_IO
This patch adds a tracepoint for f2fs_direct_IO. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/f2fs/data.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index ec3c8860539e..03313099c51c 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1086,9 +1086,14 @@ static ssize_t f2fs_direct_IO(int rw, struct kiocb *iocb,
/* clear fsync mark to recover these blocks */
fsync_mark_clear(F2FS_SB(inode->i_sb), inode->i_ino);
+ trace_f2fs_direct_IO_enter(inode, offset, count, rw);
+
err = blockdev_direct_IO(rw, iocb, inode, iter, offset, get_data_block);
if (err < 0 && (rw & WRITE))
f2fs_write_failed(mapping, offset + count);
+
+ trace_f2fs_direct_IO_exit(inode, offset, count, rw, err);
+
return err;
}