f2fs: move node pages only in victim section during GC

[deliverable/linux.git] / fs / f2fs / node.c

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index de070a524fd2c8341cbb18cebb2e61cbbee6e7d6..f80cfb6beac6771b9362e0d795dd1ec4db7f2e93 100644 (file)
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1222,6 +1222,37 @@ iput_out:
        iput(inode);
 }
 
+void move_node_page(struct page *node_page, int gc_type)
+{
+       if (gc_type == FG_GC) {
+               struct f2fs_sb_info *sbi = F2FS_P_SB(node_page);
+               struct writeback_control wbc = {
+                       .sync_mode = WB_SYNC_ALL,
+                       .nr_to_write = 1,
+                       .for_reclaim = 0,
+               };
+
+               set_page_dirty(node_page);
+               f2fs_wait_on_page_writeback(node_page, NODE, true);
+
+               f2fs_bug_on(sbi, PageWriteback(node_page));
+               if (!clear_page_dirty_for_io(node_page))
+                       goto out_page;
+
+               if (NODE_MAPPING(sbi)->a_ops->writepage(node_page, &wbc))
+                       unlock_page(node_page);
+               goto release_page;
+       } else {
+               /* set page dirty and write it */
+               if (!PageWriteback(node_page))
+                       set_page_dirty(node_page);
+       }
+out_page:
+       unlock_page(node_page);
+release_page:
+       f2fs_put_page(node_page, 0);
+}
+
 static struct page *last_fsync_dnode(struct f2fs_sb_info *sbi, nid_t ino)
 {
        pgoff_t index, end;