change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/net/ceph/pagelist.c
..
..
@@ -6,6 +6,26 @@
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 #include <linux/highmem.h>
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 #include <linux/ceph/pagelist.h>
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+struct ceph_pagelist *ceph_pagelist_alloc(gfp_t gfp_flags)
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+{
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+	struct ceph_pagelist *pl;
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+
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+	pl = kmalloc(sizeof(*pl), gfp_flags);
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+	if (!pl)
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+		return NULL;
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+
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+	INIT_LIST_HEAD(&pl->head);
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+	pl->mapped_tail = NULL;
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+	pl->length = 0;
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+	pl->room = 0;
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+	INIT_LIST_HEAD(&pl->free_list);
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+	pl->num_pages_free = 0;
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+	refcount_set(&pl->refcnt, 1);
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+
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+	return pl;
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+}
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+EXPORT_SYMBOL(ceph_pagelist_alloc);
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+
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 static void ceph_pagelist_unmap_tail(struct ceph_pagelist *pl)
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 {
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 	if (pl->mapped_tail) {