summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--fs/f2fs/recovery.c28
1 files changed, 24 insertions, 4 deletions
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 07a36e413ace..d2ef0c9f53e7 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -399,14 +399,35 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
f2fs_bug_on(sbi, ni.ino != ino_of_node(page));
f2fs_bug_on(sbi, ofs_of_node(dn.node_page) != ofs_of_node(page));
- for (; start < end; start++) {
+ for (; start < end; start++, dn.ofs_in_node++) {
block_t src, dest;
src = datablock_addr(dn.node_page, dn.ofs_in_node);
dest = datablock_addr(page, dn.ofs_in_node);
- if (src != dest && dest != NEW_ADDR && dest != NULL_ADDR &&
- is_valid_blkaddr(sbi, dest, META_POR)) {
+ /* skip recovering if dest is the same as src */
+ if (src == dest)
+ continue;
+
+ /* dest is invalid, just invalidate src block */
+ if (dest == NULL_ADDR) {
+ truncate_data_blocks_range(&dn, 1);
+ continue;
+ }
+
+ /*
+ * dest is reserved block, invalidate src block
+ * and then reserve one new block in dnode page.
+ */
+ if (dest == NEW_ADDR) {
+ truncate_data_blocks_range(&dn, 1);
+ err = reserve_new_block(&dn);
+ f2fs_bug_on(sbi, err);
+ continue;
+ }
+
+ /* dest is valid block, try to recover from src to dest */
+ if (is_valid_blkaddr(sbi, dest, META_POR)) {
if (src == NULL_ADDR) {
err = reserve_new_block(&dn);
@@ -424,7 +445,6 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
ni.version, false);
recovered++;
}
- dn.ofs_in_node++;
}
if (IS_INODE(dn.node_page))