This patch merges the functionality provided by the numa_maps patch in mm
into the /proc/<pid>/smaps facility. The numa_maps patch may then be
dropped from mm.
Signed-off-by: Christoph Lameter <[email protected]>
Index: linux-2.6.13-rc3-mm3/fs/proc/task_mmu.c
===================================================================
--- linux-2.6.13-rc3-mm3.orig/fs/proc/task_mmu.c 2005-07-29 11:07:50.000000000 -0700
+++ linux-2.6.13-rc3-mm3/fs/proc/task_mmu.c 2005-07-29 11:33:38.000000000 -0700
@@ -158,6 +158,10 @@
unsigned long shared_dirty;
unsigned long private_clean;
unsigned long private_dirty;
+ unsigned long anon;
+ unsigned long mapped;
+ unsigned long mapcount_max;
+ unsigned long node[MAX_NUMNODES];
};
static void smaps_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
@@ -167,6 +171,7 @@
pte_t *pte, ptent;
unsigned long pfn;
struct page *page;
+ int count;
pte = pte_offset_map(pmd, addr);
do {
@@ -191,6 +196,15 @@
else
mss->private_clean += PAGE_SIZE;
}
+
+ count = page_mapcount(page);
+ if (count)
+ mss->mapped += PAGE_SIZE;
+ if (count > mss->mapcount_max)
+ mss->mapcount_max = count;
+ if (PageAnon(page))
+ mss->anon += PAGE_SIZE;
+ mss->node[page_to_nid(page)] += PAGE_SIZE;
} while (pte++, addr += PAGE_SIZE, addr != end);
pte_unmap(pte - 1);
cond_resched_lock(&vma->vm_mm->page_table_lock);
@@ -246,10 +260,15 @@
static int show_smap(struct seq_file *m, void *v)
{
+ struct task_struct *task = m->private;
struct vm_area_struct *vma = v;
struct mm_struct *mm = vma->vm_mm;
unsigned long vma_len = (vma->vm_end - vma->vm_start);
struct mem_size_stats mss;
+#ifdef CONFIG_NUMA
+ int n;
+ char buffer[50];
+#endif
memset(&mss, 0, sizeof mss);
@@ -267,13 +286,28 @@
"Shared_Clean: %8lu kB\n"
"Shared_Dirty: %8lu kB\n"
"Private_Clean: %8lu kB\n"
- "Private_Dirty: %8lu kB\n",
+ "Private_Dirty: %8lu kB\n"
+ "Anonymous: %8lu kB\n"
+ "Mapped: %8lu kB\n"
+ "MaxMapCount: %8lu\n",
vma_len >> 10,
mss.resident >> 10,
mss.shared_clean >> 10,
mss.shared_dirty >> 10,
mss.private_clean >> 10,
- mss.private_dirty >> 10);
+ mss.private_dirty >> 10,
+ mss.anon >> 10,
+ mss.mapped >> 10,
+ mss.mapcount_max);
+#ifdef CONFIG_NUMA
+ for_each_node(n)
+ if (mss.node[n])
+ seq_printf(m, "Node%-4d: %8lu kB\n",
+ n, mss.node[n]);
+ if (mpol_to_str(buffer, sizeof(buffer),
+ get_vma_policy(task, vma, vma->vm_start)) >=0)
+ seq_printf(m, "Memory_Policy: %s\n", buffer);
+#endif
return 0;
}
-
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