linux-kernel - [PATCH 14/24] task_diag: add a marcos to enumirate memory mappings

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Date:	Mon,  6 Jul 2015 11:47:15 +0300
From:	Andrey Vagin <avagin@...nvz.org>
To:	linux-kernel@...r.kernel.org
Cc:	linux-api@...r.kernel.org, Andrey Vagin <avagin@...nvz.org>,
	Oleg Nesterov <oleg@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Cyrill Gorcunov <gorcunov@...nvz.org>,
	Pavel Emelyanov <xemul@...allels.com>,
	Roger Luethi <rl@...lgate.ch>, Arnd Bergmann <arnd@...db.de>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	David Ahern <dsahern@...il.com>,
	Andy Lutomirski <luto@...capital.net>,
	Pavel Odintsov <pavel.odintsov@...il.com>
Subject: [PATCH 14/24] task_diag: add a marcos to enumirate memory mappings

This macros will help users to use this interface.

v2: Fix task_diag_for_each_vma to work with libnl // David Ahern

Signed-off-by: Andrey Vagin <avagin@...nvz.org>
---
 include/uapi/linux/task_diag.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/uapi/linux/task_diag.h b/include/uapi/linux/task_diag.h
index 73d33c8..9e4c3c4 100644
--- a/include/uapi/linux/task_diag.h
+++ b/include/uapi/linux/task_diag.h
@@ -143,6 +143,11 @@ static inline struct task_diag_vma_stat *task_diag_vma_stat(struct task_diag_vma
 	return ((void *)vma) + vma->stat_off;
 }
 
+#define task_diag_for_each_vma(vma, attr)			\
+	for (vma = nla_data(attr);				\
+		(void *) vma < nla_data(attr) + nla_len(attr);	\
+		vma = (void *) vma + vma->vma_len)
+
 #define TASK_DIAG_DUMP_ALL	0
 #define TASK_DIAG_DUMP_CHILDREN	1
 
-- 
2.1.0

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