From: Anshuman Khandual <anshuman.khandual@arm.com>
To: Christophe Leroy <christophe.leroy@c-s.fr>, linux-mm@kvack.org
Cc: Mark Rutland <mark.rutland@arm.com>,
linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
Peter Zijlstra <peterz@infradead.org>,
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Andrew Morton <akpm@linux-foundation.org>,
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"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH] mm/pgtable/debug: Fix test validating architecture page table helpers
Date: Fri, 13 Sep 2019 12:28:08 +0530 [thread overview]
Message-ID: <527dd29d-45fa-4d83-1899-6cbf268dd749@arm.com> (raw)
In-Reply-To: <1892b37d1fd9a4ed39e76c4b999b6556077201c0.1568355752.git.christophe.leroy@c-s.fr>
On 09/13/2019 11:53 AM, Christophe Leroy wrote:
> Fix build failure on powerpc.
>
> Fix preemption imbalance.
>
> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
> ---
> mm/arch_pgtable_test.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/mm/arch_pgtable_test.c b/mm/arch_pgtable_test.c
> index 8b4a92756ad8..f2b3c9ec35fa 100644
> --- a/mm/arch_pgtable_test.c
> +++ b/mm/arch_pgtable_test.c
> @@ -24,6 +24,7 @@
> #include <linux/swap.h>
> #include <linux/swapops.h>
> #include <linux/sched/mm.h>
> +#include <linux/highmem.h>
This is okay.
> #include <asm/pgalloc.h>
> #include <asm/pgtable.h>
>
> @@ -400,6 +401,8 @@ static int __init arch_pgtable_tests_init(void)
> p4d_clear_tests(p4dp);
> pgd_clear_tests(mm, pgdp);
>
> + pte_unmap(ptep);
> +
Now the preemption imbalance via pte_alloc_map() path i.e
pte_alloc_map() -> pte_offset_map() -> kmap_atomic()
Is not this very much powerpc 32 specific or this will be applicable
for all platform which uses kmap_XXX() to map high memory ?
next prev parent reply other threads:[~2019-09-13 6:58 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-12 6:02 [PATCH V2 0/2] mm/debug: Add tests for architecture exported page table helpers Anshuman Khandual
2019-09-12 6:02 ` [PATCH V2 2/2] mm/pgtable/debug: Add test validating architecture " Anshuman Khandual
2019-09-12 11:00 ` Kirill A. Shutemov
2019-09-12 12:09 ` Anshuman Khandual
2019-09-12 15:00 ` Christophe Leroy
2019-09-12 15:36 ` Christophe Leroy
2019-09-12 15:52 ` Christophe Leroy
2019-09-13 6:30 ` Christophe Leroy
2019-09-12 17:14 ` Christophe Leroy
2019-09-13 6:23 ` [PATCH] mm/pgtable/debug: Fix " Christophe Leroy
2019-09-13 6:58 ` Anshuman Khandual [this message]
2019-09-13 7:03 ` Christophe Leroy
2019-09-13 7:11 ` Christophe Leroy
2019-09-13 8:42 ` Anshuman Khandual
2019-09-13 8:51 ` Kirill A. Shutemov
2019-09-18 7:32 ` Anshuman Khandual
2019-09-19 5:44 ` Christophe Leroy
2019-09-13 9:02 ` [PATCH V2 2/2] mm/pgtable/debug: Add " Anshuman Khandual
2019-09-13 9:13 ` Kirill A. Shutemov
2019-09-13 10:01 ` Christophe Leroy
2019-09-18 5:04 ` Anshuman Khandual
2019-09-18 16:26 ` Christophe Leroy
2019-09-18 18:22 ` Gerald Schaefer
2019-09-20 4:06 ` Anshuman Khandual
2019-09-19 4:56 ` Anshuman Khandual
2019-09-19 5:41 ` Christophe Leroy
2019-09-12 14:42 ` [PATCH V2 0/2] mm/debug: Add tests for architecture exported " Christophe Leroy
2019-09-13 6:24 ` Anshuman Khandual
2019-09-13 6:32 ` Christophe Leroy
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