[Ocfs2-devel] [PATCH 1/1] Ocfs2: Journaling i_flags and i_orphaned_slot when adding inode to orphan dir.

[TaoMa <tao.ma@oracle.com>]

ack
Tristan Ye wrote:
> Currently, some caller were missing to journal the dirty inode after
> adding it to orphan dir, which makes fs complains as bug 1215:
>
> http://oss.oracle.com/bugzilla/show_bug.cgi?id=1215
>
> Now we're going to journal such modifications within the ocfs2_orphan_add()
> itself, It's safe to do so, though some existing caller may duplicate this,
> and it makes the logic look more straightforward anyway.
>
> Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
> ---
>  fs/ocfs2/namei.c |   32 +++++++++++++++++++++++++++-----
>  1 files changed, 27 insertions(+), 5 deletions(-)
>
> diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
> index f010b22..a24caca 100644
> --- a/fs/ocfs2/namei.c
> +++ b/fs/ocfs2/namei.c
> @@ -84,7 +84,7 @@ static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb,
>  static int ocfs2_orphan_add(struct ocfs2_super *osb,
>  			    handle_t *handle,
>  			    struct inode *inode,
> -			    struct ocfs2_dinode *fe,
> +			    struct buffer_head *fe_bh,
>  			    char *name,
>  			    struct ocfs2_dir_lookup_result *lookup,
>  			    struct inode *orphan_dir_inode);
> @@ -877,7 +877,7 @@ static int ocfs2_unlink(struct inode *dir,
>  	fe = (struct ocfs2_dinode *) fe_bh->b_data;
>  
>  	if (inode_is_unlinkable(inode)) {
> -		status = ocfs2_orphan_add(osb, handle, inode, fe, orphan_name,
> +		status = ocfs2_orphan_add(osb, handle, inode, fe_bh, orphan_name,
>  					  &orphan_insert, orphan_dir);
>  		if (status < 0) {
>  			mlog_errno(status);
> @@ -1295,7 +1295,7 @@ static int ocfs2_rename(struct inode *old_dir,
>  		if (S_ISDIR(new_inode->i_mode) ||
>  		    (ocfs2_read_links_count(newfe) == 1)) {
>  			status = ocfs2_orphan_add(osb, handle, new_inode,
> -						  newfe, orphan_name,
> +						  newfe_bh, orphan_name,
>  						  &orphan_insert, orphan_dir);
>  			if (status < 0) {
>  				mlog_errno(status);
> @@ -1909,7 +1909,7 @@ leave:
>  static int ocfs2_orphan_add(struct ocfs2_super *osb,
>  			    handle_t *handle,
>  			    struct inode *inode,
> -			    struct ocfs2_dinode *fe,
> +			    struct buffer_head *fe_bh,
>  			    char *name,
>  			    struct ocfs2_dir_lookup_result *lookup,
>  			    struct inode *orphan_dir_inode)
> @@ -1917,6 +1917,7 @@ static int ocfs2_orphan_add(struct ocfs2_super *osb,
>  	struct buffer_head *orphan_dir_bh = NULL;
>  	int status = 0;
>  	struct ocfs2_dinode *orphan_fe;
> +	struct ocfs2_dinode *fe = (struct ocfs2_dinode *) fe_bh->b_data;
>  
>  	mlog_entry("(inode->i_ino = %lu)\n", inode->i_ino);
>  
> @@ -1957,6 +1958,21 @@ static int ocfs2_orphan_add(struct ocfs2_super *osb,
>  		goto leave;
>  	}
>  
> +	/* 
> +	 * We're going to journal the change of i_flags and i_orphaned_slot.
> +	 * It's safe anyway, though some callers may duplicate the journaling.
> +	 * Journaling within the func just make the logic look more
> +	 * straightforward.
> +	 */
> +	status = ocfs2_journal_access_di(handle,
> +					 INODE_CACHE(inode),
> +					 fe_bh,
> +					 OCFS2_JOURNAL_ACCESS_WRITE);
> +	if (status < 0) {
> +		mlog_errno(status);
> +		goto leave;
> +	}
> +
>  	le32_add_cpu(&fe->i_flags, OCFS2_ORPHANED_FL);
>  
>  	/* Record which orphan dir our inode now resides
> @@ -1964,6 +1980,12 @@ static int ocfs2_orphan_add(struct ocfs2_super *osb,
>  	 * dir to lock. */
>  	fe->i_orphaned_slot = cpu_to_le16(osb->slot_num);
>  
> +	status = ocfs2_journal_dirty(handle, fe_bh);
> +	if (status < 0) {
> +		mlog_errno(status);
> +		goto leave;
> +	}
> +
>  	mlog(0, "Inode %llu orphaned in slot %d\n",
>  	     (unsigned long long)OCFS2_I(inode)->ip_blkno, osb->slot_num);
>  
> @@ -2124,7 +2146,7 @@ int ocfs2_create_inode_in_orphan(struct inode *dir,
>  	}
>  
>  	di = (struct ocfs2_dinode *)new_di_bh->b_data;
> -	status = ocfs2_orphan_add(osb, handle, inode, di, orphan_name,
> +	status = ocfs2_orphan_add(osb, handle, inode, new_di_bh, orphan_name,
>  				  &orphan_insert, orphan_dir);
>  	if (status < 0) {
>  		mlog_errno(status);
>