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Commit 64d13c00 authored by Hugh Dickins's avatar Hugh Dickins Committed by Linus Torvalds
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[PATCH] fix impossible VmallocChunk 



VmallocTotal: 34359738367 kB
VmallocUsed:    266288 kB
VmallocChunk: 18014366299193295 kB
is unsettling - x86_64 and some other architectures keep a separate address
range for modules in vmalloc's vmlist, which /proc/meminfo should pass over.

Signed-off-by: default avatarHugh Dickins <hugh@veritas.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent baae9561

fs/proc/mmu.c

+12 −2
Original line number Diff line number Diff line
@@ -50,13 +50,23 @@ void get_vmalloc_info(struct vmalloc_info *vmi) 
		read_lock(&vmlist_lock);



		for (vma = vmlist; vma; vma = vma->next) {

			unsigned long addr = (unsigned long) vma->addr;



			/*

			 * Some archs keep another range for modules in vmlist

			 */

			if (addr < VMALLOC_START)

				continue;

			if (addr >= VMALLOC_END)

				break;



			vmi->used += vma->size;



			free_area_size = (unsigned long) vma->addr - prev_end;

			free_area_size = addr - prev_end;

			if (vmi->largest_chunk < free_area_size)

				vmi->largest_chunk = free_area_size;



			prev_end = vma->size + (unsigned long) vma->addr;

			prev_end = vma->size + addr;

		}



		if (VMALLOC_END - prev_end > vmi->largest_chunk)