From: David Hildenbrand <david@redhat.com>
To: Wei Yang <richard.weiyang@linux.alibaba.com>
Cc: linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org, linux-mm@kvack.org,
linux-hyperv@vger.kernel.org, xen-devel@lists.xenproject.org,
linux-acpi@vger.kernel.org, linux-nvdimm@lists.01.org,
linux-s390@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@suse.com>, Jason Gunthorpe <jgg@ziepe.ca>,
Kees Cook <keescook@chromium.org>,
Ard Biesheuvel <ardb@kernel.org>,
Pankaj Gupta <pankaj.gupta.linux@gmail.com>,
Baoquan He <bhe@redhat.com>
Subject: Re: [PATCH v2 1/7] kernel/resource: make release_mem_region_adjustable() never fail
Date: Tue, 15 Sep 2020 11:15:53 +0200 [thread overview]
Message-ID: <bc324c26-3638-ffa6-ee01-68a659183adf@redhat.com> (raw)
In-Reply-To: <20200915090612.GA6936@L-31X9LVDL-1304.local>
On 15.09.20 11:06, Wei Yang wrote:
> On Tue, Sep 15, 2020 at 09:35:30AM +0200, David Hildenbrand wrote:
>>
>>>> static int __ref try_remove_memory(int nid, u64 start, u64 size)
>>>> {
>>>> int rc = 0;
>>>> @@ -1777,7 +1757,7 @@ static int __ref try_remove_memory(int nid, u64 start, u64 size)
>>>> memblock_remove(start, size);
>>>> }
>>>>
>>>> - __release_memory_resource(start, size);
>>>> + release_mem_region_adjustable(&iomem_resource, start, size);
>>>>
>>>
>>> Seems the only user of release_mem_region_adjustable() is here, can we move
>>> iomem_resource into the function body? Actually, we don't iterate the resource
>>> tree from any level. We always start from the root.
>>
>> You mean, making iomem_resource implicit? I can spot that something
>> similar was done for
>>
>> #define devm_release_mem_region(dev, start, n) \
>> __devm_release_region(dev, &iomem_resource, (start), (n))
>>
>
> What I prefer is remove iomem_resource from the parameter list. Just use is in
> the function body.
>
> For the example you listed, __release_region() would have varies of *parent*,
> which looks reasonable to keep it here.
Yeah I got that ("making iomem_resource implicit"), as I said:
>> I'll send an addon patch for that, ok? - thanks.
--
Thanks,
David / dhildenb
_______________________________________________
Linux-nvdimm mailing list -- linux-nvdimm@lists.01.org
To unsubscribe send an email to linux-nvdimm-leave@lists.01.org
next prev parent reply other threads:[~2020-09-15 9:16 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-08 20:10 [PATCH v2 0/7] mm/memory_hotplug: selective merging of system ram resources David Hildenbrand
2020-09-08 20:10 ` [PATCH v2 1/7] kernel/resource: make release_mem_region_adjustable() never fail David Hildenbrand
2020-09-15 2:07 ` Wei Yang
2020-09-15 2:10 ` Wei Yang
2020-09-15 7:35 ` David Hildenbrand
2020-09-15 9:06 ` Wei Yang
2020-09-15 9:15 ` David Hildenbrand [this message]
2020-09-15 9:33 ` Wei Yang
2020-09-08 20:10 ` [PATCH v2 2/7] kernel/resource: move and rename IORESOURCE_MEM_DRIVER_MANAGED David Hildenbrand
2020-09-09 7:16 ` Greg Kroah-Hartman
2020-09-09 7:27 ` David Hildenbrand
2020-09-15 2:20 ` Wei Yang
2020-09-15 7:37 ` David Hildenbrand
2020-09-08 20:10 ` [PATCH v2 3/7] mm/memory_hotplug: prepare passing flags to add_memory() and friends David Hildenbrand
2020-09-09 5:18 ` Jürgen Groß
2020-09-09 7:17 ` Greg Kroah-Hartman
2020-09-09 7:28 ` David Hildenbrand
2020-09-09 11:24 ` Michael Ellerman
2020-09-09 11:37 ` David Hildenbrand
2020-09-09 11:51 ` David Hildenbrand
2020-09-08 20:10 ` [PATCH v2 4/7] mm/memory_hotplug: MEMHP_MERGE_RESOURCE to specify merging of System RAM resources David Hildenbrand
2020-09-08 20:10 ` [PATCH v2 5/7] virtio-mem: try to merge system ram resources David Hildenbrand
2020-09-08 20:10 ` [PATCH v2 6/7] xen/balloon: " David Hildenbrand
2020-09-09 5:18 ` Jürgen Groß
2020-09-08 20:10 ` [PATCH v2 7/7] hv_balloon: " David Hildenbrand
2020-09-09 9:43 ` Wei Liu
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=bc324c26-3638-ffa6-ee01-68a659183adf@redhat.com \
--to=david@redhat.com \
--cc=akpm@linux-foundation.org \
--cc=ardb@kernel.org \
--cc=bhe@redhat.com \
--cc=jgg@ziepe.ca \
--cc=keescook@chromium.org \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-hyperv@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-nvdimm@lists.01.org \
--cc=linux-s390@vger.kernel.org \
--cc=mhocko@suse.com \
--cc=pankaj.gupta.linux@gmail.com \
--cc=richard.weiyang@linux.alibaba.com \
--cc=virtualization@lists.linux-foundation.org \
--cc=xen-devel@lists.xenproject.org \
/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).