fix missing skip pages info in f2fs_writepages trace event.

Signed-off-by: Yunlei He <heyun...@huawei.com>
---
 fs/f2fs/checkpoint.c | 5 +++--
 fs/f2fs/data.c       | 5 +++--
 fs/f2fs/node.c       | 5 +++--
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 9c0d721..536bec9 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -256,13 +256,13 @@ static int f2fs_write_meta_pages(struct address_space 
*mapping,
        struct f2fs_sb_info *sbi = F2FS_M_SB(mapping);
        long diff, written;
 
-       trace_f2fs_writepages(mapping->host, wbc, META);
-
        /* collect a number of dirty meta pages and write together */
        if (wbc->for_kupdate ||
                get_pages(sbi, F2FS_DIRTY_META) < nr_pages_to_skip(sbi, META))
                goto skip_write;
 
+       trace_f2fs_writepages(mapping->host, wbc, META);
+
        /* if mounting is failed, skip writing node pages */
        mutex_lock(&sbi->cp_mutex);
        diff = nr_pages_to_write(sbi, META, wbc);
@@ -273,6 +273,7 @@ static int f2fs_write_meta_pages(struct address_space 
*mapping,
 
 skip_write:
        wbc->pages_skipped += get_pages(sbi, F2FS_DIRTY_META);
+       trace_f2fs_writepages(mapping->host, wbc, META);
        return 0;
 }
 
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 316eb5d..1c47490 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1341,8 +1341,6 @@ static int f2fs_write_data_pages(struct address_space 
*mapping,
        int ret;
        long diff;
 
-       trace_f2fs_writepages(mapping->host, wbc, DATA);
-
        /* deal with chardevs and other special file */
        if (!mapping->a_ops->writepage)
                return 0;
@@ -1364,6 +1362,8 @@ static int f2fs_write_data_pages(struct address_space 
*mapping,
        if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
                goto skip_write;
 
+       trace_f2fs_writepages(mapping->host, wbc, DATA);
+
        diff = nr_pages_to_write(sbi, DATA, wbc);
 
        if (!S_ISDIR(inode->i_mode) && wbc->sync_mode == WB_SYNC_ALL) {
@@ -1382,6 +1382,7 @@ static int f2fs_write_data_pages(struct address_space 
*mapping,
 
 skip_write:
        wbc->pages_skipped += get_dirty_pages(inode);
+       trace_f2fs_writepages(mapping->host, wbc, DATA);
        return 0;
 }
 
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index e08b8d5..150907f 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1460,8 +1460,6 @@ static int f2fs_write_node_pages(struct address_space 
*mapping,
        struct f2fs_sb_info *sbi = F2FS_M_SB(mapping);
        long diff;
 
-       trace_f2fs_writepages(mapping->host, wbc, NODE);
-
        /* balancing f2fs's metadata in background */
        f2fs_balance_fs_bg(sbi);
 
@@ -1469,6 +1467,8 @@ static int f2fs_write_node_pages(struct address_space 
*mapping,
        if (get_pages(sbi, F2FS_DIRTY_NODES) < nr_pages_to_skip(sbi, NODE))
                goto skip_write;
 
+       trace_f2fs_writepages(mapping->host, wbc, NODE);
+
        diff = nr_pages_to_write(sbi, NODE, wbc);
        wbc->sync_mode = WB_SYNC_NONE;
        sync_node_pages(sbi, 0, wbc);
@@ -1477,6 +1477,7 @@ static int f2fs_write_node_pages(struct address_space 
*mapping,
 
 skip_write:
        wbc->pages_skipped += get_pages(sbi, F2FS_DIRTY_NODES);
+       trace_f2fs_writepages(mapping->host, wbc, NODE);
        return 0;
 }
 
-- 
1.9.1


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