mm/sparse.c: clean up obsolete code comment (7567cfc5) · Commits · 戴 / test

The code comment above sparse_add_one_section() is obsolete and incorrect. Clean it up and write a new one. Link: http://lkml.kernel.org/r/20190329144250.14315-1-bhe@redhat.com Signed-off-by:

mm/sparse.c

+12 −4

Original line number	Diff line number	Diff line
		@@ -684,10 +684,18 @@ static void free_map_bootmem(struct page *memmap)
		#endif /* CONFIG_MEMORY_HOTREMOVE */
		#endif /* CONFIG_SPARSEMEM_VMEMMAP */

		/*
		* returns the number of sections whose mem_maps were properly
		* set. If this is <=0, then that means that the passed-in
		* map was not consumed and must be freed.
		/**
		* sparse_add_one_section - add a memory section
		* @nid: The node to add section on
		* @start_pfn: start pfn of the memory range
		* @altmap: device page map
		*
		* This is only intended for hotplug.
		*
		* Return:
		* * 0 - On success.
		* * -EEXIST - Section has been present.
		* * -ENOMEM - Out of memory.
		*/
		int __meminit sparse_add_one_section(int nid, unsigned long start_pfn,
		struct vmem_altmap *altmap)