f2fs: add a tracepoint for f2fs_write_{meta,node,data}_page
This patch adds a tracepoint for f2fs_write_{meta,node,data}_page to trace when
page is writting out.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 4206f16..c95d622 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -157,6 +157,8 @@
struct inode *inode = page->mapping->host;
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+ trace_f2fs_writepage(page, META);
+
if (unlikely(sbi->por_doing))
goto redirty_out;
if (wbc->for_reclaim)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index f9e1326..f16b8fc 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -795,6 +795,8 @@
.rw = (wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : WRITE,
};
+ trace_f2fs_writepage(page, DATA);
+
if (page->index < end_index)
goto write;
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index d6a0d24..3a67ebe 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1199,6 +1199,8 @@
.rw = (wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : WRITE,
};
+ trace_f2fs_writepage(page, NODE);
+
if (unlikely(sbi->por_doing))
goto redirty_out;
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 750e5e0..6f0e5ad 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -751,6 +751,13 @@
__entry->dirty)
);
+DEFINE_EVENT(f2fs__page, f2fs_writepage,
+
+ TP_PROTO(struct page *page, int type),
+
+ TP_ARGS(page, type)
+);
+
DEFINE_EVENT(f2fs__page, f2fs_set_page_dirty,
TP_PROTO(struct page *page, int type),