From 1a75a6c825c17249ca49f050a872a04ce0997ce3 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Sun, 8 Jan 2006 01:01:02 -0800 Subject: [PATCH] Fold numa_maps into mempolicies.c First discussed at http://marc.theaimsgroup.com/?t=113149255100001&r=1&w=2 - Use the check_range() in mempolicy.c to gather statistics. - Improve the numa_maps code in general and fix some comments. Signed-off-by: Christoph Lameter Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/task_mmu.c | 127 +++-------------------------------------------------- 1 file changed, 5 insertions(+), 122 deletions(-) (limited to 'fs/proc') diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 50bd5a8f0446..0eaad41f4658 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -390,129 +390,12 @@ struct seq_operations proc_pid_smaps_op = { }; #ifdef CONFIG_NUMA - -struct numa_maps { - unsigned long pages; - unsigned long anon; - unsigned long mapped; - unsigned long mapcount_max; - unsigned long node[MAX_NUMNODES]; -}; - -/* - * Calculate numa node maps for a vma - */ -static struct numa_maps *get_numa_maps(struct vm_area_struct *vma) -{ - int i; - struct page *page; - unsigned long vaddr; - struct numa_maps *md = kmalloc(sizeof(struct numa_maps), GFP_KERNEL); - - if (!md) - return NULL; - md->pages = 0; - md->anon = 0; - md->mapped = 0; - md->mapcount_max = 0; - for_each_node(i) - md->node[i] =0; - - for (vaddr = vma->vm_start; vaddr < vma->vm_end; vaddr += PAGE_SIZE) { - page = follow_page(vma, vaddr, 0); - if (page) { - int count = page_mapcount(page); - - if (count) - md->mapped++; - if (count > md->mapcount_max) - md->mapcount_max = count; - md->pages++; - if (PageAnon(page)) - md->anon++; - md->node[page_to_nid(page)]++; - } - cond_resched(); - } - return md; -} - -static int show_numa_map(struct seq_file *m, void *v) -{ - struct task_struct *task = m->private; - struct vm_area_struct *vma = v; - struct mempolicy *pol; - struct numa_maps *md; - struct zone **z; - int n; - int first; - - if (!vma->vm_mm) - return 0; - - md = get_numa_maps(vma); - if (!md) - return 0; - - seq_printf(m, "%08lx", vma->vm_start); - pol = get_vma_policy(task, vma, vma->vm_start); - /* Print policy */ - switch (pol->policy) { - case MPOL_PREFERRED: - seq_printf(m, " prefer=%d", pol->v.preferred_node); - break; - case MPOL_BIND: - seq_printf(m, " bind={"); - first = 1; - for (z = pol->v.zonelist->zones; *z; z++) { - - if (!first) - seq_putc(m, ','); - else - first = 0; - seq_printf(m, "%d/%s", (*z)->zone_pgdat->node_id, - (*z)->name); - } - seq_putc(m, '}'); - break; - case MPOL_INTERLEAVE: - seq_printf(m, " interleave={"); - first = 1; - for_each_node(n) { - if (node_isset(n, pol->v.nodes)) { - if (!first) - seq_putc(m,','); - else - first = 0; - seq_printf(m, "%d",n); - } - } - seq_putc(m, '}'); - break; - default: - seq_printf(m," default"); - break; - } - seq_printf(m, " MaxRef=%lu Pages=%lu Mapped=%lu", - md->mapcount_max, md->pages, md->mapped); - if (md->anon) - seq_printf(m," Anon=%lu",md->anon); - - for_each_online_node(n) { - if (md->node[n]) - seq_printf(m, " N%d=%lu", n, md->node[n]); - } - seq_putc(m, '\n'); - kfree(md); - if (m->count < m->size) /* vma is copied successfully */ - m->version = (vma != get_gate_vma(task)) ? vma->vm_start : 0; - return 0; -} +extern int show_numa_map(struct seq_file *m, void *v); struct seq_operations proc_pid_numa_maps_op = { - .start = m_start, - .next = m_next, - .stop = m_stop, - .show = show_numa_map + .start = m_start, + .next = m_next, + .stop = m_stop, + .show = show_numa_map }; #endif -- cgit v1.2.3