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From: Mina Almasry <almasrymina@google.com>
To: linux-mm@kvack.org, linux-next@vger.kernel.org,
	open list <linux-kernel@vger.kernel.org>
Cc: David Rientjes <rientjes@google.com>,
	Greg Thelen <gthelen@google.com>,
	Mike Kravetz <mike.kravetz@oracle.com>,
	Shakeel Butt <shakeelb@google.com>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] hugetlb: fix CONFIG_CGROUP_HUGETLB ifdefs
Date: Fri, 14 Feb 2020 13:00:31 -0800
Message-ID: <CAHS8izMjyLzCsSga59dE+zDC3sLBuA=_u4EtsShN+EZQ1EQitw@mail.gmail.com> (raw)
In-Reply-To: <20200214204544.231482-1-almasrymina@google.com>

On Fri, Feb 14, 2020 at 12:46 PM Mina Almasry <almasrymina@google.com> wrote:
>
> Fixes an #ifdef bug in the patch referred to below that was
> causing a build error when CONFIG_DEBUG_VM &&
> !CONFIG_CCGROUP_HUGETLB.
>
> Fixes: b5f16a533ce8a ("hugetlb: support file_region coalescing again")
> Signed-off-by: Mina Almasry <almasrymina@google.com>
> Cc: David Rientjes <rientjes@google.com>
> Cc: Greg Thelen <gthelen@google.com>
> Cc: Mike Kravetz <mike.kravetz@oracle.com>
> Cc: Shakeel Butt <shakeelb@google.com>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> ---
>  mm/hugetlb.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/mm/hugetlb.c b/mm/hugetlb.c
> index ee6d262fe6ac0..95d34c58981d2 100644
> --- a/mm/hugetlb.c
> +++ b/mm/hugetlb.c
> @@ -289,7 +289,7 @@ static bool has_same_uncharge_info(struct file_region *rg,
>  #endif
>  }
>
> -#ifdef CONFIG_DEBUG_VM
> +#if defined(CONFIG_DEBUG_VM) && defined(CONFIG_CGROUP_HUGETLB)
>  static void dump_resv_map(struct resv_map *resv)
>  {
>         struct list_head *head = &resv->regions;
> @@ -325,6 +325,10 @@ static void check_coalesce_bug(struct resv_map *resv)
>                 }
>         }
>  }
> +#else
> +static void check_coalesce_bug(struct resv_map *resv)
> +{
> +}
>  #endif
>
>  static void coalesce_file_region(struct resv_map *resv, struct file_region *rg)
> @@ -431,9 +435,7 @@ static long add_reservation_in_range(struct resv_map *resv, long f, long t,
>         }
>
>         VM_BUG_ON(add < 0);
> -#ifdef CONFIG_DEBUG_VM
>         check_coalesce_bug(resv);
> -#endif
>         return add;
>  }
>
> --
> 2.25.0.265.gbab2e86ba0-goog

  parent reply index

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200203173311.6269a8be06a05e5a4aa08a93@linux-foundation.org>
2020-02-14  6:26 ` mmotm 2020-02-13-22-26 uploaded Andrew Morton
2020-02-14 16:29   ` mmotm 2020-02-13-22-26 uploaded (mm/hugetlb.c) Randy Dunlap
2020-02-14 17:18     ` Mike Kravetz
2020-02-14 20:51       ` Mina Almasry
     [not found]       ` <20200214204544.231482-1-almasrymina@google.com>
2020-02-14 21:00         ` Mina Almasry [this message]
2020-02-15  1:17           ` [PATCH] hugetlb: fix CONFIG_CGROUP_HUGETLB ifdefs Randy Dunlap
2020-02-15  1:56             ` Randy Dunlap
2020-02-16 20:40               ` Mina Almasry
2020-02-16 21:03                 ` Mina Almasry
2020-02-17  2:48                   ` Randy Dunlap
2020-02-17  2:57                     ` [PATCH] hugetlb: fix <linux/hugetlb_cgroup.h> structs Randy Dunlap
2020-02-17  3:53               ` [PATCH] hugetlb: fix CONFIG_CGROUP_HUGETLB ifdefs Stephen Rothwell
2020-02-14 16:49   ` mmotm 2020-02-13-22-26 uploaded (mm/migrate.c, hugetlb_cgroup.h) Randy Dunlap
2020-02-25  3:53 ` mmotm 2020-02-24-19-53 uploaded Andrew Morton
2020-02-25  6:16   ` mmotm 2020-02-24-19-53 uploaded (init/main.c: initrd*) Randy Dunlap
2020-02-25  6:18     ` Randy Dunlap
2020-02-25  6:21       ` Randy Dunlap
2020-02-25 16:41   ` mmotm 2020-02-24-19-53 uploaded (drivers/platform/x86/intel_pmc_core.c) Randy Dunlap
2020-02-25 17:01   ` mmotm 2020-02-24-19-53 uploaded (objtool warning) Randy Dunlap

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