[PATCH 3/8] f2fs: give a chance to detach from dirty list

[Chao Yu]

From: Chao Yu <yuch...@huawei.com>

If there is no dirty pages in inode, we should give a chance to detach
the inode from global dirty list, otherwise it needs to call another
unnecessary .writepages for detaching.

Signed-off-by: Chao Yu <yuch...@huawei.com>
---
 fs/f2fs/data.c    | 8 +++++---
 fs/f2fs/dir.c     | 1 +
 fs/f2fs/gc.c      | 4 +++-
 fs/f2fs/inline.c  | 4 +++-
 fs/f2fs/node.c    | 1 +
 fs/f2fs/segment.c | 4 +++-
 6 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 0d0177c..1818781 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1785,12 +1785,14 @@ void f2fs_invalidate_page(struct page *page, unsigned 
int offset,
                return;
 
        if (PageDirty(page)) {
-               if (inode->i_ino == F2FS_META_INO(sbi))
+               if (inode->i_ino == F2FS_META_INO(sbi)) {
                        dec_page_count(sbi, F2FS_DIRTY_META);
-               else if (inode->i_ino == F2FS_NODE_INO(sbi))
+               } else if (inode->i_ino == F2FS_NODE_INO(sbi)) {
                        dec_page_count(sbi, F2FS_DIRTY_NODES);
-               else
+               } else {
                        inode_dec_dirty_pages(inode);
+                       remove_dirty_inode(inode);
+               }
        }
 
        /* This is atomic written page, keep Private */
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index cbf85f6..d7c0eb3 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -742,6 +742,7 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, 
struct page *page,
                ClearPagePrivate(page);
                ClearPageUptodate(page);
                inode_dec_dirty_pages(dir);
+               remove_dirty_inode(dir);
        }
        f2fs_put_page(page, 1);
 }
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 93985c6..e48142f 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -673,8 +673,10 @@ static void move_data_page(struct inode *inode, block_t 
bidx, int gc_type)
 retry:
                set_page_dirty(page);
                f2fs_wait_on_page_writeback(page, DATA, true);
-               if (clear_page_dirty_for_io(page))
+               if (clear_page_dirty_for_io(page)) {
                        inode_dec_dirty_pages(inode);
+                       remove_dirty_inode(inode);
+               }
 
                set_cold_data(page);
 
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index 34234d8..1cf7a74 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -137,8 +137,10 @@ int f2fs_convert_inline_page(struct dnode_of_data *dn, 
struct page *page)
        fio.old_blkaddr = dn->data_blkaddr;
        write_data_page(dn, &fio);
        f2fs_wait_on_page_writeback(page, DATA, true);
-       if (dirty)
+       if (dirty) {
                inode_dec_dirty_pages(dn->inode);
+               remove_dirty_inode(dn->inode);
+       }
 
        /* this converted inline_data should be recovered. */
        set_inode_flag(dn->inode, FI_APPEND_WRITE);
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 0a9692e..3a393e3 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1204,6 +1204,7 @@ static void flush_inline_data(struct f2fs_sb_info *sbi, 
nid_t ino)
 
        ret = f2fs_write_inline_data(inode, page);
        inode_dec_dirty_pages(inode);
+       remove_dirty_inode(inode);
        if (ret)
                set_page_dirty(page);
 page_out:
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 7f62dd0..bc190cf 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -274,8 +274,10 @@ static int __commit_inmem_pages(struct inode *inode,
 
                        set_page_dirty(page);
                        f2fs_wait_on_page_writeback(page, DATA, true);
-                       if (clear_page_dirty_for_io(page))
+                       if (clear_page_dirty_for_io(page)) {
                                inode_dec_dirty_pages(inode);
+                               remove_dirty_inode(inode);
+                       }
 
                        fio.page = page;
                        err = do_write_data_page(&fio);
-- 
2.10.1