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f2fs: add a tracepoint for f2fs_write_{meta,node,data}_page

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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>
This commit is contained in:
Chao Yu 2014-05-06 16:48:26 +08:00 committed by Jaegeuk Kim
parent dfb2bf38bf
commit ecda0de343
4 changed files with 13 additions and 0 deletions
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2
fs/f2fs/checkpoint.c
View file

@ -157,6 +157,8 @@ static int f2fs_write_meta_page(struct page *page,
struct inode *inode = page->mapping->host; struct inode *inode = page->mapping->host;
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
trace_f2fs_writepage(page, META);
if (unlikely(sbi->por_doing)) if (unlikely(sbi->por_doing))
goto redirty_out; goto redirty_out;
if (wbc->for_reclaim) if (wbc->for_reclaim)

2
fs/f2fs/data.c
View file

@ -788,6 +788,8 @@ static int f2fs_write_data_page(struct page *page,
.rw = (wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : WRITE, .rw = (wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : WRITE,
}; };
trace_f2fs_writepage(page, DATA);
if (page->index < end_index) if (page->index < end_index)
goto write; goto write;

2
fs/f2fs/node.c
View file

@ -1199,6 +1199,8 @@ static int f2fs_write_node_page(struct page *page,
.rw = (wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : WRITE, .rw = (wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : WRITE,
}; };
trace_f2fs_writepage(page, NODE);
if (unlikely(sbi->por_doing)) if (unlikely(sbi->por_doing))
goto redirty_out; goto redirty_out;

7
include/trace/events/f2fs.h
View file

@ -751,6 +751,13 @@ DECLARE_EVENT_CLASS(f2fs__page,
__entry->dirty) __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, DEFINE_EVENT(f2fs__page, f2fs_set_page_dirty,
TP_PROTO(struct page *page, int type), TP_PROTO(struct page *page, int type),