f2fs: add tracepoint for set_page_dirty

This patch adds a tracepoint for set_page_dirty.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 5649a9d8e94225bf0330b30b84e23819465e0903..6526f50106216ee65c3cac9b9b3113c623fef029 100644 (file)
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -167,6 +167,8 @@ static int f2fs_set_meta_page_dirty(struct page *page)
        struct address_space *mapping = page->mapping;
        struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
 
+       trace_f2fs_set_page_dirty(page, META);
+
        SetPageUptodate(page);
        if (!PageDirty(page)) {
                __set_page_dirty_nobuffers(page);

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 1cccf98f0e4d55b60b5e879133d7faf8040416de..c8887d847dcf4f13fb55027e1cec357e3b8ca92c 100644 (file)
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -756,6 +756,8 @@ static int f2fs_set_data_page_dirty(struct page *page)
        struct address_space *mapping = page->mapping;
        struct inode *inode = mapping->host;
 
+       trace_f2fs_set_page_dirty(page, DATA);
+
        SetPageUptodate(page);
        if (!PageDirty(page)) {
                __set_page_dirty_nobuffers(page);

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 7bac4815f1d604510a5e15b795d4c95602f6016a..304d5ced6355e7e0bc692ea57cda5bbd1c66a8ea 100644 (file)
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1225,6 +1225,8 @@ static int f2fs_set_node_page_dirty(struct page *page)
        struct address_space *mapping = page->mapping;
        struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
 
+       trace_f2fs_set_page_dirty(page, NODE);
+
        SetPageUptodate(page);
        if (!PageDirty(page)) {
                __set_page_dirty_nobuffers(page);

diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 52ae54828eda4eb905023124a9b2d4c5cb500226..ebde3afb89cd0bcf4eebf9493c2a79e61c62e4db 100644 (file)
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -36,6 +36,11 @@
                { CURSEG_COLD_NODE,     "Cold NODE" },                  \
                { NO_CHECK_TYPE,        "No TYPE" })
 
+#define show_file_type(type)                                           \
+       __print_symbolic(type,                                          \
+               { 0,            "FILE" },                               \
+               { 1,            "DIR" })
+
 #define show_gc_type(type)                                             \
        __print_symbolic(type,                                          \
                { FG_GC,        "Foreground GC" },                      \
@@ -623,6 +628,45 @@ TRACE_EVENT(f2fs_do_submit_bio,
                __entry->size)
 );
 
+DECLARE_EVENT_CLASS(f2fs__page,
+
+       TP_PROTO(struct page *page, int type),
+
+       TP_ARGS(page, type),
+
+       TP_STRUCT__entry(
+               __field(dev_t,  dev)
+               __field(ino_t,  ino)
+               __field(int, type)
+               __field(int, dir)
+               __field(pgoff_t, index)
+               __field(int, dirty)
+       ),
+
+       TP_fast_assign(
+               __entry->dev    = page->mapping->host->i_sb->s_dev;
+               __entry->ino    = page->mapping->host->i_ino;
+               __entry->type   = type;
+               __entry->dir    = S_ISDIR(page->mapping->host->i_mode);
+               __entry->index  = page->index;
+               __entry->dirty  = PageDirty(page);
+       ),
+
+       TP_printk("dev = (%d,%d), ino = %lu, %s, %s, index = %lu, dirty = %d",
+               show_dev_ino(__entry),
+               show_block_type(__entry->type),
+               show_file_type(__entry->dir),
+               (unsigned long)__entry->index,
+               __entry->dirty)
+);
+
+DEFINE_EVENT(f2fs__page, f2fs_set_page_dirty,
+
+       TP_PROTO(struct page *page, int type),
+
+       TP_ARGS(page, type)
+);
+
 TRACE_EVENT(f2fs_submit_write_page,
 
        TP_PROTO(struct page *page, block_t blk_addr, int type),