From: Sasha Levin <sasha.levin@oracle.com>
To: akpm@linux-foundation.org
Cc: kirill.shutemov@linux.intel.com, khlebnikov@openvz.org,
riel@redhat.com, mgorman@suse.de, n-horiguchi@ah.jp.nec.com,
mhocko@suse.cz, hughd@google.com, vbabka@suse.cz,
walken@google.com, minchan@kernel.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Sasha Levin <sasha.levin@oracle.com>
Subject: [PATCH 2/3] Introduce VM_BUG_ON_VMA
Date: Fri, 29 Aug 2014 10:54:18 -0400 [thread overview]
Message-ID: <1409324059-28692-2-git-send-email-sasha.levin@oracle.com> (raw)
In-Reply-To: <1409324059-28692-1-git-send-email-sasha.levin@oracle.com>
Very similar to VM_BUG_ON_PAGE but dumps VMA information instead.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
---
include/linux/mmdebug.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/include/linux/mmdebug.h b/include/linux/mmdebug.h
index dfb9333..569e4c8 100644
--- a/include/linux/mmdebug.h
+++ b/include/linux/mmdebug.h
@@ -20,12 +20,20 @@ void dump_vma(const struct vm_area_struct *vma);
BUG(); \
} \
} while (0)
+#define VM_BUG_ON_VMA(cond, vma) \
+ do { \
+ if (unlikely(cond)) { \
+ dump_vma(vma); \
+ BUG(); \
+ } \
+ } while (0)
#define VM_WARN_ON(cond) WARN_ON(cond)
#define VM_WARN_ON_ONCE(cond) WARN_ON_ONCE(cond)
#define VM_WARN_ONCE(cond, format...) WARN_ONCE(cond, format)
#else
#define VM_BUG_ON(cond) BUILD_BUG_ON_INVALID(cond)
#define VM_BUG_ON_PAGE(cond, page) VM_BUG_ON(cond)
+#define VM_BUG_ON_VMA(cond, vma) VM_BUG_ON(cond)
#define VM_WARN_ON(cond) BUILD_BUG_ON_INVALID(cond)
#define VM_WARN_ON_ONCE(cond) BUILD_BUG_ON_INVALID(cond)
#define VM_WARN_ONCE(cond, format...) BUILD_BUG_ON_INVALID(cond)
--
1.7.10.4
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2014-08-29 14:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-29 14:54 [PATCH 1/3] Introduce dump_vma Sasha Levin
2014-08-29 14:54 ` Sasha Levin [this message]
2014-08-29 18:51 ` [PATCH 2/3] Introduce VM_BUG_ON_VMA Naoya Horiguchi
2014-08-29 14:54 ` [PATCH 3/3] Convert a few VM_BUG_ON callers to VM_BUG_ON_VMA Sasha Levin
2014-08-29 19:17 ` Naoya Horiguchi
2014-08-29 19:32 ` Sasha Levin
2014-08-29 18:51 ` [PATCH 1/3] Introduce dump_vma Naoya Horiguchi
2014-08-29 19:37 ` Andrew Morton
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1409324059-28692-2-git-send-email-sasha.levin@oracle.com \
--to=sasha.levin@oracle.com \
--cc=akpm@linux-foundation.org \
--cc=hughd@google.com \
--cc=khlebnikov@openvz.org \
--cc=kirill.shutemov@linux.intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mgorman@suse.de \
--cc=mhocko@suse.cz \
--cc=minchan@kernel.org \
--cc=n-horiguchi@ah.jp.nec.com \
--cc=riel@redhat.com \
--cc=vbabka@suse.cz \
--cc=walken@google.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).