xfs: improve local fork verification

Call the data/attr local fork verifiers as soon as we are ready for them.
This keeps them close to the code setting up the forks, and avoids a
few branches later on.  Also open code xfs_inode_verify_forks in the
only remaining caller.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

fs/xfs/libxfs/xfs_inode_fork.c

@@ -227,6 +227,7 @@ xfs_iformat_data_fork(
 	struct xfs_dinode	*dip)
 {
 	struct inode		*inode = VFS_I(ip);
+	int			error;
 
 	switch (inode->i_mode & S_IFMT) {
 	case S_IFIFO:
@@ -241,8 +242,11 @@ xfs_iformat_data_fork(
 	case S_IFDIR:
 		switch (dip->di_format) {
 		case XFS_DINODE_FMT_LOCAL:
-			return xfs_iformat_local(ip, dip, XFS_DATA_FORK,
+			error = xfs_iformat_local(ip, dip, XFS_DATA_FORK,
 					be64_to_cpu(dip->di_size));
+			if (!error)
+				error = xfs_ifork_verify_local_data(ip);
+			return error;
 		case XFS_DINODE_FMT_EXTENTS:
 			return xfs_iformat_extents(ip, dip, XFS_DATA_FORK);
 		case XFS_DINODE_FMT_BTREE:
@@ -282,6 +286,8 @@ xfs_iformat_attr_fork(
 	case XFS_DINODE_FMT_LOCAL:
 		error = xfs_iformat_local(ip, dip, XFS_ATTR_FORK,
 				xfs_dfork_attr_shortform_size(dip));
+		if (!error)
+			error = xfs_ifork_verify_local_attr(ip);
 		break;
 	case XFS_DINODE_FMT_EXTENTS:
 		error = xfs_iformat_extents(ip, dip, XFS_ATTR_FORK);

fs/xfs/xfs_icache.c

@@ -543,14 +543,8 @@ xfs_iget_cache_miss(
 			goto out_destroy;
 	}
 
-	if (!xfs_inode_verify_forks(ip)) {
-		error = -EFSCORRUPTED;
-		goto out_destroy;
-	}
-
 	trace_xfs_iget_miss(ip);
 
-
 	/*
 	 * Check the inode free state is valid. This also detects lookup
 	 * racing with unlinks.

fs/xfs/xfs_inode.c

@@ -3707,23 +3707,6 @@ xfs_iflush(
 	return error;
 }
 
-/*
- * If there are inline format data / attr forks attached to this inode,
- * make sure they're not corrupt.
- */
-bool
-xfs_inode_verify_forks(
-	struct xfs_inode	*ip)
-{
-	if (ip->i_d.di_format == XFS_DINODE_FMT_LOCAL &&
-	    xfs_ifork_verify_local_data(ip))
-		return false;
-	if (ip->i_d.di_aformat == XFS_DINODE_FMT_LOCAL &&
-	    xfs_ifork_verify_local_attr(ip))
-		return false;
-	return true;
-}
-
 STATIC int
 xfs_iflush_int(
 	struct xfs_inode	*ip,
@@ -3808,8 +3791,15 @@ xfs_iflush_int(
 	if (!xfs_sb_version_has_v3inode(&mp->m_sb))
 		ip->i_d.di_flushiter++;
 
-	/* Check the inline fork data before we write out. */
-	if (!xfs_inode_verify_forks(ip))
+	/*
+	 * If there are inline format data / attr forks attached to this inode,
+	 * make sure they are not corrupt.
+	 */
+	if (ip->i_d.di_format == XFS_DINODE_FMT_LOCAL &&
+	    xfs_ifork_verify_local_data(ip))
+		goto flush_out;
+	if (ip->i_d.di_aformat == XFS_DINODE_FMT_LOCAL &&
+	    xfs_ifork_verify_local_attr(ip))
 		goto flush_out;
 
 	/*

fs/xfs/xfs_inode.h

@@ -498,8 +498,6 @@ extern struct kmem_zone	*xfs_inode_zone;
 /* The default CoW extent size hint. */
 #define XFS_DEFAULT_COWEXTSZ_HINT 32
 
-bool xfs_inode_verify_forks(struct xfs_inode *ip);
-
 int xfs_iunlink_init(struct xfs_perag *pag);
 void xfs_iunlink_destroy(struct xfs_perag *pag);
 

fs/xfs/xfs_inode_item_recover.c

@@ -94,11 +94,6 @@ xfs_recover_inode_owner_change(
 	if (error)
 		goto out_free_ip;
 
-	if (!xfs_inode_verify_forks(ip)) {
-		error = -EFSCORRUPTED;
-		goto out_free_ip;
-	}
-
 	if (in_f->ilf_fields & XFS_ILOG_DOWNER) {
 		ASSERT(in_f->ilf_fields & XFS_ILOG_DBROOT);
 		error = xfs_bmbt_change_owner(NULL, ip, XFS_DATA_FORK,