Ocfs2 devel - Feb 2009 - [PATCH 1/1] OCFS2: add error check for ocfs2_read_locked_inode() call

add error check for ocfs2_read_locked_inode() call.

Signed-off-by: Wengang Wang <wen.gang.wang at oracle.com>
--
Index: inode.c
==================================================================--- inode.c
(revision 149)
+++ inode.c	(working copy)
@@ -118,6 +118,7 @@ struct inode *ocfs2_iget(struct ocfs2_su
 	struct inode *inode = NULL;
 	struct super_block *sb = osb->sb;
 	struct ocfs2_find_inode_args args;
+	int status;
 
 	mlog_entry("(blkno = %llu)\n", (unsigned long long)blkno);
 
@@ -142,7 +143,12 @@ struct inode *ocfs2_iget(struct ocfs2_su
 	 * afterwards. */
 	if (inode && inode->i_state & I_NEW) {
 		mlog(0, "Inode was not in inode cache, reading it.\n");
-		ocfs2_read_locked_inode(inode, &args);
+		status = ocfs2_read_locked_inode(inode, &args);
+		if (status) {
+			iput(inode);
+			inode = ERR_PTR(status);
+			goto bail;
+		}
 		unlock_new_inode(inode);
 	}
 	if (inode == NULL) {

(resend if my first attemp not failed)
add error check for ocfs2_read_locked_inode() call.

Signed-off-by: Wengang Wang <wen.gang.wang at oracle.com>
--
Index: inode.c
==================================================================--- inode.c
(revision 149)
+++ inode.c	(working copy)
@@ -118,6 +118,7 @@ struct inode *ocfs2_iget(struct ocfs2_su
 	struct inode *inode = NULL;
 	struct super_block *sb = osb->sb;
 	struct ocfs2_find_inode_args args;
+	int status;
 
 	mlog_entry("(blkno = %llu)\n", (unsigned long long)blkno);
 
@@ -142,7 +143,12 @@ struct inode *ocfs2_iget(struct ocfs2_su
 	 * afterwards. */
 	if (inode && inode->i_state & I_NEW) {
 		mlog(0, "Inode was not in inode cache, reading it.\n");
-		ocfs2_read_locked_inode(inode, &args);
+		status = ocfs2_read_locked_inode(inode, &args);
+		if (status) {
+			iput(inode);
+			inode = ERR_PTR(status);
+			goto bail;
+		}
 		unlock_new_inode(inode);
 	}
 	if (inode == NULL) {

On Fri, Feb 20, 2009 at 10:52:01PM +0800, wengang wang
wrote:
> add error check for ocfs2_read_locked_inode() call.
	This isn't needed, because every error in
ocfs2_read_locked_inode() will set the inode bad with make_bad_inode().
ocfs2_iget() checks tat five lines later with is_bad_inode().

Joel
> 
> Signed-off-by: Wengang Wang <wen.gang.wang at oracle.com>
> --
> Index: inode.c
> ==================================================================> ---
inode.c	(revision 149)
> +++ inode.c	(working copy)
> @@ -118,6 +118,7 @@ struct inode *ocfs2_iget(struct ocfs2_su
>  	struct inode *inode = NULL;
>  	struct super_block *sb = osb->sb;
>  	struct ocfs2_find_inode_args args;
> +	int status;
>  
>  	mlog_entry("(blkno = %llu)\n", (unsigned long long)blkno);
>  
> @@ -142,7 +143,12 @@ struct inode *ocfs2_iget(struct ocfs2_su
>  	 * afterwards. */
>  	if (inode && inode->i_state & I_NEW) {
>  		mlog(0, "Inode was not in inode cache, reading it.\n");
> -		ocfs2_read_locked_inode(inode, &args);
> +		status = ocfs2_read_locked_inode(inode, &args);
> +		if (status) {
> +			iput(inode);
> +			inode = ERR_PTR(status);
> +			goto bail;
> +		}
>  		unlock_new_inode(inode);
>  	}
>  	if (inode == NULL) {
> 
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-- 

"In the room the women come and go
 Talking of Michaelangelo."

Joel Becker
Principal Software Developer
Oracle
E-mail: joel.becker at oracle.com
Phone: (650) 506-8127