[PATCH 1/2] ocfs2: use correct endian in ocfs2_dinode_has_extents

[PATCH 1/2] ocfs2: use correct endian in ocfs2_dinode_has_extents

[Joseph Qi]

Fields in ocfs2_dinode is little endian, covert to host endian when
checking those contents.

Fixes: fdbb6cd96ed5 ("ocfs2: correct l_next_free_rec in online check")
Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
---
 fs/ocfs2/inode.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index fcc89856ab95..0a0a96054bfe 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -201,13 +201,15 @@ struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 blkno, unsigned flags,
 static int ocfs2_dinode_has_extents(struct ocfs2_dinode *di)
 {
 	/* inodes flagged with other stuff in id2 */
-	if (di->i_flags & (OCFS2_SUPER_BLOCK_FL | OCFS2_LOCAL_ALLOC_FL |
-			   OCFS2_CHAIN_FL | OCFS2_DEALLOC_FL))
+	if (le32_to_cpu(di->i_flags) &
+	    (OCFS2_SUPER_BLOCK_FL | OCFS2_LOCAL_ALLOC_FL | OCFS2_CHAIN_FL |
+	     OCFS2_DEALLOC_FL))
 		return 0;
 	/* i_flags doesn't indicate when id2 is a fast symlink */
-	if (S_ISLNK(di->i_mode) && di->i_size && di->i_clusters == 0)
+	if (S_ISLNK(le16_to_cpu(di->i_mode)) && le64_to_cpu(di->i_size) &&
+	    !le32_to_cpu(di->i_clusters))
 		return 0;
-	if (di->i_dyn_features & OCFS2_INLINE_DATA_FL)
+	if (le16_to_cpu(di->i_dyn_features) & OCFS2_INLINE_DATA_FL)
 		return 0;
 
 	return 1;
-- 
2.39.3

[PATCH 2/2] ocfs2: convert to host endian in ocfs2_validate_inode_block

[Joseph Qi]

Convert to host endian when checking OCFS2_VALID_FL to keep consistent
with other checks.

Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
---
 fs/ocfs2/inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index 0a0a96054bfe..dc4044a565b5 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -1481,7 +1481,7 @@ int ocfs2_validate_inode_block(struct super_block *sb,
 		goto bail;
 	}
 
-	if (!(di->i_flags & cpu_to_le32(OCFS2_VALID_FL))) {
+	if (!(le32_to_cpu(di->i_flags) & OCFS2_VALID_FL)) {
 		rc = ocfs2_error(sb,
 				 "Invalid dinode #%llu: OCFS2_VALID_FL not set\n",
 				 (unsigned long long)bh->b_blocknr);
-- 
2.39.3

Re: [PATCH 2/2] ocfs2: convert to host endian in ocfs2_validate_inode_block

[Heming Zhao]

On Sat, Oct 25, 2025 at 08:32:18PM +0800, Joseph Qi wrote:
> Convert to host endian when checking OCFS2_VALID_FL to keep consistent
> with other checks.
> 
> Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>

Reviewed-by: Heming Zhao <heming.zhao@suse.com>
> ---
>  fs/ocfs2/inode.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
> index 0a0a96054bfe..dc4044a565b5 100644
> --- a/fs/ocfs2/inode.c
> +++ b/fs/ocfs2/inode.c
> @@ -1481,7 +1481,7 @@ int ocfs2_validate_inode_block(struct super_block *sb,
>  		goto bail;
>  	}
>  
> -	if (!(di->i_flags & cpu_to_le32(OCFS2_VALID_FL))) {
> +	if (!(le32_to_cpu(di->i_flags) & OCFS2_VALID_FL)) {
>  		rc = ocfs2_error(sb,
>  				 "Invalid dinode #%llu: OCFS2_VALID_FL not set\n",
>  				 (unsigned long long)bh->b_blocknr);
> -- 
> 2.39.3
> 

Re: [PATCH 1/2] ocfs2: use correct endian in ocfs2_dinode_has_extents

[Heming Zhao]

On Sat, Oct 25, 2025 at 08:32:17PM +0800, Joseph Qi wrote:
> Fields in ocfs2_dinode is little endian, covert to host endian when
> checking those contents.
> 
> Fixes: fdbb6cd96ed5 ("ocfs2: correct l_next_free_rec in online check")
> Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>

Reviewed-by: Heming Zhao <heming.zhao@suse.com>
> ---
>  fs/ocfs2/inode.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
> index fcc89856ab95..0a0a96054bfe 100644
> --- a/fs/ocfs2/inode.c
> +++ b/fs/ocfs2/inode.c
> @@ -201,13 +201,15 @@ struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 blkno, unsigned flags,
>  static int ocfs2_dinode_has_extents(struct ocfs2_dinode *di)
>  {
>  	/* inodes flagged with other stuff in id2 */
> -	if (di->i_flags & (OCFS2_SUPER_BLOCK_FL | OCFS2_LOCAL_ALLOC_FL |
> -			   OCFS2_CHAIN_FL | OCFS2_DEALLOC_FL))
> +	if (le32_to_cpu(di->i_flags) &
> +	    (OCFS2_SUPER_BLOCK_FL | OCFS2_LOCAL_ALLOC_FL | OCFS2_CHAIN_FL |
> +	     OCFS2_DEALLOC_FL))
>  		return 0;
>  	/* i_flags doesn't indicate when id2 is a fast symlink */
> -	if (S_ISLNK(di->i_mode) && di->i_size && di->i_clusters == 0)
> +	if (S_ISLNK(le16_to_cpu(di->i_mode)) && le64_to_cpu(di->i_size) &&
> +	    !le32_to_cpu(di->i_clusters))
>  		return 0;
> -	if (di->i_dyn_features & OCFS2_INLINE_DATA_FL)
> +	if (le16_to_cpu(di->i_dyn_features) & OCFS2_INLINE_DATA_FL)
>  		return 0;
>  
>  	return 1;
> -- 
> 2.39.3
>