Patch "erofs: initialize packed inode after root inode is assigned" has been added to the 6.1-stable tree

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This is a note to let you know that I've just added the patch titled

    erofs: initialize packed inode after root inode is assigned

to the 6.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     erofs-initialize-packed-inode-after-root-inode-is-as.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit d90357b011c0fe470c9ff5ac4fabddbdcb31c64a
Author: Jingbo Xu <jefflexu@xxxxxxxxxxxxxxxxx>
Date:   Fri Apr 7 22:17:05 2023 +0800

    erofs: initialize packed inode after root inode is assigned
    
    [ Upstream commit cb9bce79514392a9a216ff67148e05e2d72c28bd ]
    
    As commit 8f7acdae2cd4 ("staging: erofs: kill all failure handling in
    fill_super()"), move the initialization of packed inode after root
    inode is assigned, so that the iput() in .put_super() is adequate as
    the failure handling.
    
    Otherwise, iput() is also needed in .kill_sb(), in case of the mounting
    fails halfway.
    
    Signed-off-by: Jingbo Xu <jefflexu@xxxxxxxxxxxxxxxxx>
    Reviewed-by: Yue Hu <huyue2@xxxxxxxxxxx>
    Fixes: b15b2e307c3a ("erofs: support on-disk compressed fragments data")
    Reviewed-by: Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx>
    Acked-by: Chao Yu <chao@xxxxxxxxxx>
    Link: https://lore.kernel.org/r/20230407141710.113882-3-jefflexu@xxxxxxxxxxxxxxxxx
    Signed-off-by: Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index e51f27b6bde15..4868000806d8b 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -154,6 +154,7 @@ struct erofs_sb_info {
 
 	/* what we really care is nid, rather than ino.. */
 	erofs_nid_t root_nid;
+	erofs_nid_t packed_nid;
 	/* used for statfs, f_files - f_favail */
 	u64 inos;
 
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 626a615dafc2f..bd8bf8fc2f5df 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -381,17 +381,7 @@ static int erofs_read_superblock(struct super_block *sb)
 #endif
 	sbi->islotbits = ilog2(sizeof(struct erofs_inode_compact));
 	sbi->root_nid = le16_to_cpu(dsb->root_nid);
-#ifdef CONFIG_EROFS_FS_ZIP
-	sbi->packed_inode = NULL;
-	if (erofs_sb_has_fragments(sbi) && dsb->packed_nid) {
-		sbi->packed_inode =
-			erofs_iget(sb, le64_to_cpu(dsb->packed_nid));
-		if (IS_ERR(sbi->packed_inode)) {
-			ret = PTR_ERR(sbi->packed_inode);
-			goto out;
-		}
-	}
-#endif
+	sbi->packed_nid = le64_to_cpu(dsb->packed_nid);
 	sbi->inos = le64_to_cpu(dsb->inos);
 
 	sbi->build_time = le64_to_cpu(dsb->build_time);
@@ -800,6 +790,16 @@ static int erofs_fc_fill_super(struct super_block *sb, struct fs_context *fc)
 
 	erofs_shrinker_register(sb);
 	/* sb->s_umount is already locked, SB_ACTIVE and SB_BORN are not set */
+#ifdef CONFIG_EROFS_FS_ZIP
+	if (erofs_sb_has_fragments(sbi) && sbi->packed_nid) {
+		sbi->packed_inode = erofs_iget(sb, sbi->packed_nid);
+		if (IS_ERR(sbi->packed_inode)) {
+			err = PTR_ERR(sbi->packed_inode);
+			sbi->packed_inode = NULL;
+			return err;
+		}
+	}
+#endif
 	err = erofs_init_managed_cache(sb);
 	if (err)
 		return err;



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