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From: Matt Mackall <mpm@selenic.com>
To: Andrew Morton <akpm@linux-foundation.org>, linux-kernel@vger.kernel.org
Cc: Dave Hansen <haveblue@us.ibm.com>,
	Rusty Russell <rusty@rustcorp.com.au>,
	Jeremy Fitzhardinge <jeremy@goop.org>,
	David Rientjes <rientjes@google.com>,
	Fengguang Wu <wfg@mail.ustc.edu.cn>
Subject: [PATCH 6/12] maps4: simplify interdependence of maps and smaps
Date: Fri, 26 Oct 2007 11:36:32 -0500	[thread overview]
Message-ID: <7.430487409@selenic.com> (raw)
In-Reply-To: <1.430487409@selenic.com>

From: Matt Mackall <mpm@selenic.com>

This pulls the shared map display code out of show_map and puts it in
show_smap where it belongs.

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Index: l/fs/proc/task_mmu.c
===================================================================
--- l.orig/fs/proc/task_mmu.c	2007-10-22 15:59:29.000000000 -0500
+++ l/fs/proc/task_mmu.c	2007-10-22 16:00:49.000000000 -0500
@@ -145,7 +145,7 @@ struct mem_size_stats
 	u64 pss;
 };
 
-static int show_map_internal(struct seq_file *m, void *v, struct mem_size_stats *mss)
+static int show_map(struct seq_file *m, void *v)
 {
 	struct proc_maps_private *priv = m->private;
 	struct task_struct *task = priv->task;
@@ -205,35 +205,11 @@ static int show_map_internal(struct seq_
 	}
 	seq_putc(m, '\n');
 
-	if (mss)
-		seq_printf(m,
-			   "Size:           %8lu kB\n"
-			   "Rss:            %8lu kB\n"
-			   "Pss:            %8lu kB\n"
-			   "Shared_Clean:   %8lu kB\n"
-			   "Shared_Dirty:   %8lu kB\n"
-			   "Private_Clean:  %8lu kB\n"
-			   "Private_Dirty:  %8lu kB\n"
-			   "Referenced:     %8lu kB\n",
-			   (vma->vm_end - vma->vm_start) >> 10,
-			   mss->resident >> 10,
-			   (unsigned long)(mss.pss >> (10 + PSS_SHIFT)),
-			   mss->shared_clean  >> 10,
-			   mss->shared_dirty  >> 10,
-			   mss->private_clean >> 10,
-			   mss->private_dirty >> 10,
-			   mss->referenced >> 10);
-
 	if (m->count < m->size)  /* vma is copied successfully */
 		m->version = (vma != get_gate_vma(task))? vma->vm_start: 0;
 	return 0;
 }
 
-static int show_map(struct seq_file *m, void *v)
-{
-	return show_map_internal(m, v, NULL);
-}
-
 static int smaps_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
 			   void *private)
 {
@@ -312,13 +288,37 @@ static int show_smap(struct seq_file *m,
 {
 	struct vm_area_struct *vma = v;
 	struct mem_size_stats mss;
+	int ret;
 
 	memset(&mss, 0, sizeof mss);
 	mss.vma = vma;
 	if (vma->vm_mm && !is_vm_hugetlb_page(vma))
 		walk_page_range(vma->vm_mm, vma->vm_start, vma->vm_end,
 				&smaps_walk, &mss);
-	return show_map_internal(m, v, &mss);
+
+	ret = show_map(m, v);
+	if (ret)
+		return ret;
+
+	seq_printf(m,
+		   "Size:           %8lu kB\n"
+		   "Rss:            %8lu kB\n"
+		   "Pss:            %8lu kB\n"
+		   "Shared_Clean:   %8lu kB\n"
+		   "Shared_Dirty:   %8lu kB\n"
+		   "Private_Clean:  %8lu kB\n"
+		   "Private_Dirty:  %8lu kB\n"
+		   "Referenced:     %8lu kB\n",
+		   (vma->vm_end - vma->vm_start) >> 10,
+		   mss.resident >> 10,
+		   (unsigned long)(mss.pss >> (10 + PSS_SHIFT)),
+		   mss.shared_clean  >> 10,
+		   mss.shared_dirty  >> 10,
+		   mss.private_clean >> 10,
+		   mss.private_dirty >> 10,
+		   mss.referenced >> 10);
+
+	return ret;
 }
 
 static struct mm_walk clear_refs_walk = { .pmd_entry = clear_refs_pte_range };

  parent reply	other threads:[~2007-10-26 16:38 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-26 16:36 [PATCH 0/12] maps4: pagemap monitoring v4 Matt Mackall
2007-10-26 16:36 ` [PATCH 1/12] maps4: add proportional set size accounting in smaps Matt Mackall
2007-10-26 16:36 ` [PATCH 2/12] maps4: From: Dave Hansen <haveblue@us.ibm.com> Matt Mackall
2007-10-26 21:22   ` David Rientjes
2007-10-26 16:36 ` [PATCH 3/12] maps4: move is_swap_pte Matt Mackall
2007-10-26 16:36 ` [PATCH 4/12] maps4: introduce a generic page walker Matt Mackall
2007-10-26 16:36 ` [PATCH 5/12] maps4: use pagewalker in clear_refs and smaps Matt Mackall
2007-10-26 16:36 ` Matt Mackall [this message]
2007-10-26 21:22   ` [PATCH 6/12] maps4: simplify interdependence of maps " David Rientjes
2007-10-26 16:36 ` [PATCH 7/12] maps4: move clear_refs code to task_mmu.c Matt Mackall
2007-10-26 16:36 ` [PATCH 8/12] maps4: regroup task_mmu by interface Matt Mackall
2007-10-26 16:36 ` [PATCH 9/12] maps4: add /proc/pid/pagemap interface Matt Mackall
2007-10-26 16:36 ` [PATCH 10/12] maps4: add /proc/kpagecount interface Matt Mackall
2007-10-26 16:36 ` [PATCH 11/12] maps4: add /proc/kpageflags interface Matt Mackall
2007-10-26 16:36 ` [PATCH 12/12] maps4: make page monitoring /proc file optional Matt Mackall

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