add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/fs/jffs2/xattr.c
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@@ -772,10 +772,10 @@
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 }
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 #define XREF_TMPHASH_SIZE	(128)
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-void jffs2_build_xattr_subsystem(struct jffs2_sb_info *c)
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+int jffs2_build_xattr_subsystem(struct jffs2_sb_info *c)
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 {
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 	struct jffs2_xattr_ref *ref, *_ref;
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-	struct jffs2_xattr_ref *xref_tmphash[XREF_TMPHASH_SIZE];
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+	struct jffs2_xattr_ref **xref_tmphash;
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 	struct jffs2_xattr_datum *xd, *_xd;
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 	struct jffs2_inode_cache *ic;
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 	struct jffs2_raw_node_ref *raw;
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@@ -784,9 +784,12 @@
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 	BUG_ON(!(c->flags & JFFS2_SB_FLAG_BUILDING));
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+	xref_tmphash = kcalloc(XREF_TMPHASH_SIZE,
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+			       sizeof(struct jffs2_xattr_ref *), GFP_KERNEL);
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+	if (!xref_tmphash)
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+		return -ENOMEM;
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+
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 	/* Phase.1 : Merge same xref */
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-	for (i=0; i < XREF_TMPHASH_SIZE; i++)
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-		xref_tmphash[i] = NULL;
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 	for (ref=c->xref_temp; ref; ref=_ref) {
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 		struct jffs2_xattr_ref *tmp;
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@@ -884,6 +887,8 @@
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 		     "%u of xref (%u dead, %u orphan) found.\n",
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 		     xdatum_count, xdatum_unchecked_count, xdatum_orphan_count,
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 		     xref_count, xref_dead_count, xref_orphan_count);
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+	kfree(xref_tmphash);
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+	return 0;
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 }
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 struct jffs2_xattr_datum *jffs2_setup_xattr_datum(struct jffs2_sb_info *c,