Signed-off-by: Yunlong Song <yunlong.s...@huawei.com>
---
 fsck/fsck.c | 26 +++++++++++++++++++++-----
 fsck/fsck.h |  3 ++-
 2 files changed, 23 insertions(+), 6 deletions(-)

diff --git a/fsck/fsck.c b/fsck/fsck.c
index 2212aa3..b52b6e4 100644
--- a/fsck/fsck.c
+++ b/fsck/fsck.c
@@ -539,7 +539,7 @@ int fsck_chk_node_blk(struct f2fs_sb_info *sbi, struct 
f2fs_inode *inode,
 
                if (sanity_check_inode(sbi, node_blk))
                        goto err;
-               fsck_chk_inode_blk(sbi, nid, ftype, node_blk, blk_cnt, &ni);
+               fsck_chk_inode_blk(sbi, nid, ftype, node_blk, blk_cnt, &ni, 
child);
                quota_add_inode_usage(fsck->qctx, nid, &node_blk->i);
        } else {
                switch (ntype) {
@@ -633,7 +633,7 @@ unmatched:
 /* start with valid nid and blkaddr */
 void fsck_chk_inode_blk(struct f2fs_sb_info *sbi, u32 nid,
                enum FILE_TYPE ftype, struct f2fs_node *node_blk,
-               u32 *blk_cnt, struct node_info *ni)
+               u32 *blk_cnt, struct node_info *ni, struct child_info *child_d)
 {
        struct f2fs_fsck *fsck = F2FS_FSCK(sbi);
        struct child_info child;
@@ -850,8 +850,23 @@ skip_blkcnt_fix:
        en = malloc(F2FS_NAME_LEN + 1);
        ASSERT(en);
 
-       namelen = convert_encrypted_name(node_blk->i.i_name,
-                                       le32_to_cpu(node_blk->i.i_namelen),
+       namelen = le32_to_cpu(node_blk->i.i_namelen);
+       if (namelen > F2FS_NAME_LEN) {
+               if (child_d && child_d->i_namelen <= F2FS_NAME_LEN) {
+                       ASSERT_MSG("ino: 0x%x has i_namelen: 0x%x, "
+                                       "but has %d characters for name",
+                                       nid, namelen, child_d->i_namelen);
+                       if (c.fix_on) {
+                               FIX_MSG("[0x%x] i_namelen=0x%x -> 0x%x", nid, 
namelen,
+                                       child_d->i_namelen);
+                               node_blk->i.i_namelen = 
cpu_to_le32(child_d->i_namelen);
+                               need_fix = 1;
+                       }
+                       namelen = child_d->i_namelen;
+               } else
+                       namelen = F2FS_NAME_LEN;
+       }
+       namelen = convert_encrypted_name(node_blk->i.i_name, namelen,
                                        en, file_enc_name(&node_blk->i));
        en[namelen] = '\0';
        if (ftype == F2FS_FT_ORPHAN)
@@ -1414,9 +1429,10 @@ static int __chk_dentries(struct f2fs_sb_info *sbi, 
struct child_info *child,
                                dentry, max, i, last_blk, enc_name);
 
                blk_cnt = 1;
+               child->i_namelen = name_len;
                ret = fsck_chk_node_blk(sbi,
                                NULL, le32_to_cpu(dentry[i].ino),
-                               ftype, TYPE_INODE, &blk_cnt, NULL);
+                               ftype, TYPE_INODE, &blk_cnt, child);
 
                if (ret && c.fix_on) {
                        int j;
diff --git a/fsck/fsck.h b/fsck/fsck.h
index 0343fbd..d635c5a 100644
--- a/fsck/fsck.h
+++ b/fsck/fsck.h
@@ -54,6 +54,7 @@ struct child_info {
        u32 pp_ino;             /*parent parent ino*/
        struct extent_info ei;
        u32 last_blk;
+       u32 i_namelen;  /* dentry namelen */
 };
 
 struct f2fs_fsck {
@@ -128,7 +129,7 @@ extern int fsck_chk_node_blk(struct f2fs_sb_info *, struct 
f2fs_inode *, u32,
                enum FILE_TYPE, enum NODE_TYPE, u32 *,
                struct child_info *);
 extern void fsck_chk_inode_blk(struct f2fs_sb_info *, u32, enum FILE_TYPE,
-               struct f2fs_node *, u32 *, struct node_info *);
+               struct f2fs_node *, u32 *, struct node_info *, struct 
child_info *);
 extern int fsck_chk_dnode_blk(struct f2fs_sb_info *, struct f2fs_inode *,
                u32, enum FILE_TYPE, struct f2fs_node *, u32 *,
                struct child_info *, struct node_info *);
-- 
1.8.5.2

Reply via email to