From: "Kirill A. Shutemov" <kirill@shutemov.name>
To: Sasha Levin <sasha.levin@oracle.com>
Cc: linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
linux-mm@kvack.org
Subject: Re: [RFC 07/11] mm: debug: VM_BUG()
Date: Thu, 30 Apr 2015 19:22:01 +0300 [thread overview]
Message-ID: <20150430162201.GC17344@node.dhcp.inet.fi> (raw)
In-Reply-To: <1429044993-1677-8-git-send-email-sasha.levin@oracle.com>
On Tue, Apr 14, 2015 at 04:56:29PM -0400, Sasha Levin wrote:
> VM_BUG() complements VM_BUG_ON() just like with WARN() and WARN_ON().
>
> This lets us format custom strings to output when a VM_BUG() is hit.
>
> Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
> ---
> include/linux/mmdebug.h | 10 +++++++++-
> 1 file changed, 9 insertions(+), 1 deletion(-)
>
> diff --git a/include/linux/mmdebug.h b/include/linux/mmdebug.h
> index 8b3f5a0..42f41e3 100644
> --- a/include/linux/mmdebug.h
> +++ b/include/linux/mmdebug.h
> @@ -12,7 +12,14 @@ char *format_page(struct page *page, char *buf, char *end);
> #ifdef CONFIG_DEBUG_VM
> char *format_vma(const struct vm_area_struct *vma, char *buf, char *end);
> char *format_mm(const struct mm_struct *mm, char *buf, char *end);
> -#define VM_BUG_ON(cond) BUG_ON(cond)
> +#define VM_BUG(cond, fmt...) \
vm_bugf() ? ;)
--
Kirill A. Shutemov
--
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next prev parent reply other threads:[~2015-04-30 16:22 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-14 20:56 [RFC 00/11] mm: debug: formatting memory management structs Sasha Levin
2015-04-14 20:56 ` [RFC 01/11] mm: debug: format flags in a buffer Sasha Levin
2015-04-30 15:39 ` Kirill A. Shutemov
2015-04-14 20:56 ` [RFC 02/11] mm: debug: deal with a new family of MM pointers Sasha Levin
2015-04-30 16:17 ` Kirill A. Shutemov
2015-04-30 16:44 ` Sasha Levin
2015-04-14 20:56 ` [RFC 03/11] mm: debug: dump VMA into a string rather than directly on screen Sasha Levin
2015-04-30 16:18 ` Kirill A. Shutemov
2015-04-14 20:56 ` [RFC 04/11] mm: debug: dump struct MM " Sasha Levin
2015-04-14 20:56 ` [RFC 05/11] mm: debug: dump page " Sasha Levin
2015-04-14 20:56 ` [RFC 06/11] mm: debug: clean unused code Sasha Levin
2015-04-14 20:56 ` [RFC 07/11] mm: debug: VM_BUG() Sasha Levin
2015-04-30 16:22 ` Kirill A. Shutemov [this message]
2015-04-14 20:56 ` [RFC 08/11] mm: debug: kill VM_BUG_ON_PAGE Sasha Levin
2015-04-14 20:56 ` [RFC 09/11] mm: debug: kill VM_BUG_ON_VMA Sasha Levin
2015-04-14 20:56 ` [RFC 10/11] mm: debug: kill VM_BUG_ON_MM Sasha Levin
2015-04-14 20:56 ` [RFC 11/11] mm: debug: use VM_BUG() to help with debug output Sasha Levin
2015-04-15 8:45 ` [RFC 00/11] mm: debug: formatting memory management structs Kirill A. Shutemov
2015-04-15 12:52 ` Sasha Levin
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