f2fs: support revoking atomic written pages

[deliverable/linux.git] / fs / f2fs / f2fs.h

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index d8caf0c86593a7a0c708f72537407bf5efa37c8a..0d2b1ba9660e4c4f0524d6ce9e7cd6fa26661e2e 100644 (file)
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -686,6 +686,7 @@ enum page_type {
        META_FLUSH,
        INMEM,          /* the below types are used by tracepoints only. */
        INMEM_DROP,
+       INMEM_REVOKE,
        IPU,
        OPU,
 };
@@ -695,6 +696,7 @@ struct f2fs_io_info {
        enum page_type type;    /* contains DATA/NODE/META/META_FLUSH */
        int rw;                 /* contains R/RS/W/WS with REQ_META/REQ_PRIO */
        block_t blk_addr;       /* block address to be written */
+       block_t old_blkaddr;    /* old block address before Cow */
        struct page *page;      /* page to be written */
        struct page *encrypted_page;    /* encrypted page */
 };
@@ -1853,7 +1855,7 @@ void write_node_page(unsigned int, struct f2fs_io_info *);
 void write_data_page(struct dnode_of_data *, struct f2fs_io_info *);
 void rewrite_data_page(struct f2fs_io_info *);
 void f2fs_replace_block(struct f2fs_sb_info *, struct dnode_of_data *,
-                               block_t, block_t, unsigned char, bool);
+                               block_t, block_t, unsigned char, bool, bool);
 void allocate_data_block(struct f2fs_sb_info *, struct page *,
                block_t, block_t *, struct f2fs_summary *, int);
 void f2fs_wait_on_page_writeback(struct page *, enum page_type, bool);