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authorHugh Dickins <hugh@veritas.com>2005-05-16 21:53:09 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-17 07:59:10 -0700
commit64d13c00cf1f7c3d2c1ff449e2a0500ab568d319 (patch)
tree864ac985be04cc9434ffc63a7357043c2b46b8a6 /fs
parentbaae956100334ffbd101eea5eeea9a5ac9cf3abd (diff)
downloadop-kernel-dev-64d13c00cf1f7c3d2c1ff449e2a0500ab568d319.zip
op-kernel-dev-64d13c00cf1f7c3d2c1ff449e2a0500ab568d319.tar.gz
[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: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/proc/mmu.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/fs/proc/mmu.c b/fs/proc/mmu.c
index a704103..25d2d9c 100644
--- a/fs/proc/mmu.c
+++ b/fs/proc/mmu.c
@@ -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)
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