linux-kernel - Re: [PATCH 3/3] resource: Introduce resource cache

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Date:   Mon, 17 Jun 2019 17:20:48 +0000
From:   Nadav Amit <namit@...are.com>
To:     Sasha Levin <sashal@...nel.org>
CC:     Andrew Morton <akpm@...ux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>, Borislav Petkov <bp@...e.de>,
        Toshi Kani <toshi.kani@....com>,
        Peter Zijlstra <peterz@...radead.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Ingo Molnar <mingo@...nel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Subject: Re: [PATCH 3/3] resource: Introduce resource cache

> On Jun 15, 2019, at 3:16 PM, Sasha Levin <sashal@...nel.org> wrote:
> 
> Hi,
> 
> [This is an automated email]
> 
> This commit has been processed because it contains a "Fixes:" tag,
> fixing commit: ff3cc952d3f0 resource: Add remove_resource interface.

This commit (Patch 3/3) does not have the “Fixes:” tag (and it is a
performance enhancement), so I don’t know why it was processed.

IOW: please do not backport it.

> The bot has tested the following trees: v5.1.9, v4.19.50, v4.14.125, v4.9.181.
> 
> v5.1.9: Build OK!
> v4.19.50: Failed to apply! Possible dependencies:
>    010a93bf97c7 ("resource: Fix find_next_iomem_res() iteration issue")
>    7a53bb309eb3 ("resource: Fix locking in find_next_iomem_res()")
>    a98959fdbda1 ("resource: Include resource end in walk_*() interfaces")
> 
> v4.14.125: Failed to apply! Possible dependencies:
>    010a93bf97c7 ("resource: Fix find_next_iomem_res() iteration issue")
>    0e4c12b45aa8 ("x86/mm, resource: Use PAGE_KERNEL protection for ioremap of memory pages")
>    1d2e733b13b4 ("resource: Provide resource struct in resource walk callback")
>    4ac2aed837cb ("resource: Consolidate resource walking code")
>    7a53bb309eb3 ("resource: Fix locking in find_next_iomem_res()")
>    a98959fdbda1 ("resource: Include resource end in walk_*() interfaces")
> 
> v4.9.181: Failed to apply! Possible dependencies:
>    010a93bf97c7 ("resource: Fix find_next_iomem_res() iteration issue")
>    0e4c12b45aa8 ("x86/mm, resource: Use PAGE_KERNEL protection for ioremap of memory pages")
>    1d2e733b13b4 ("resource: Provide resource struct in resource walk callback")
>    4ac2aed837cb ("resource: Consolidate resource walking code")
>    60fe3910bb02 ("kexec_file: Allow arch-specific memory walking for kexec_add_buffer")
>    7a53bb309eb3 ("resource: Fix locking in find_next_iomem_res()")
>    a0458284f062 ("powerpc: Add support code for kexec_file_load()")
>    a98959fdbda1 ("resource: Include resource end in walk_*() interfaces")
>    da6658859b9c ("powerpc: Change places using CONFIG_KEXEC to use CONFIG_KEXEC_CORE instead.")
>    ec2b9bfaac44 ("kexec_file: Change kexec_add_buffer to take kexec_buf as argument.")
> 
> 
> How should we proceed with this patch?
> 
> --
> Thanks,
> Sasha