From: Dave Hansen <dave.hansen@intel.com>
To: Boaz Harrosh <boaz@plexistor.com>,
Ross Zwisler <ross.zwisler@linux.intel.com>,
Jens Axboe <axboe@fb.com>,
Matthew Wilcox <matthew.r.wilcox@intel.com>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
linux-nvdimm@ml01.01.org, Toshi Kani <toshi.kani@hp.com>,
linux-mm@kvack.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 5/9] mm: Let sparse_{add,remove}_one_section receive a node_id
Date: Tue, 09 Sep 2014 11:36:42 -0700 [thread overview]
Message-ID: <540F48BA.2090304@intel.com> (raw)
In-Reply-To: <540F20AB.4000404@plexistor.com>
On 09/09/2014 08:45 AM, Boaz Harrosh wrote:
> This is for add_persistent_memory that will want a section of pages
> allocated but without any zone associated. This is because belonging
> to a zone will give the memory to the page allocators, but
> persistent_memory belongs to a block device, and is not available for
> regular volatile usage.
I don't think we should be taking patches like this in to the kernel
until we've seen the other side of it. Where is the page allocator code
which will see a page belonging to no zone? Am I missing it in this set?
I see about 80 or so calls to page_zone() in the kernel. How will a
zone-less page look to all of these sites?
next prev parent reply other threads:[~2014-09-09 18:36 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-27 21:11 [PATCH 0/4] Add persistent memory driver Ross Zwisler
2014-08-27 21:11 ` [PATCH 1/4] pmem: Initial version of " Ross Zwisler
2014-09-09 16:23 ` [PATCH v2] " Boaz Harrosh
2014-09-09 16:53 ` [Linux-nvdimm] " Dan Williams
2014-09-10 13:23 ` Boaz Harrosh
2014-09-10 17:03 ` Dan Williams
2014-09-10 17:47 ` Boaz Harrosh
2014-09-10 23:01 ` Dan Williams
2014-09-11 10:45 ` Boaz Harrosh
2014-09-11 16:31 ` Dan Williams
2014-09-14 11:18 ` Boaz Harrosh
2014-09-16 13:54 ` Jeff Moyer
2014-09-16 16:24 ` Boaz Harrosh
2014-09-19 16:27 ` Dan Williams
2014-09-21 9:27 ` Boaz Harrosh
2014-11-02 3:22 ` [PATCH 1/4] " Elliott, Robert (Server Storage)
2014-11-03 15:50 ` Jeff Moyer
2014-11-03 16:19 ` Wilcox, Matthew R
2014-11-04 10:37 ` Boaz Harrosh
2014-11-04 16:26 ` Elliott, Robert (Server Storage)
2014-11-04 16:41 ` Ross Zwisler
2014-11-04 17:06 ` Boaz Harrosh
2014-08-27 21:12 ` [PATCH 2/4] pmem: Add support for getgeo() Ross Zwisler
2014-11-02 3:27 ` Elliott, Robert (Server Storage)
2014-11-03 16:36 ` Wilcox, Matthew R
2014-08-27 21:12 ` [PATCH 3/4] pmem: Add support for rw_page() Ross Zwisler
2014-08-27 21:12 ` [PATCH 4/4] pmem: Add support for direct_access() Ross Zwisler
2014-09-09 15:37 ` [PATCH 0/9] pmem: Fixes and farther development (mm: add_persistent_memory) Boaz Harrosh
2014-09-09 15:44 ` [PATCH 4/9] SQUASHME: pmem: Support of multiple memory regions Boaz Harrosh
2014-09-09 15:45 ` [PATCH 5/9] mm: Let sparse_{add,remove}_one_section receive a node_id Boaz Harrosh
2014-09-09 18:36 ` Dave Hansen [this message]
2014-09-10 10:07 ` Boaz Harrosh
2014-09-10 16:10 ` Dave Hansen
2014-09-10 17:25 ` Boaz Harrosh
2014-09-10 18:28 ` Dave Hansen
2014-09-11 8:39 ` Boaz Harrosh
2014-09-11 17:07 ` Dave Hansen
2014-09-14 9:36 ` Boaz Harrosh
2014-09-09 15:47 ` [PATCH 6/9] mm: New add_persistent_memory/remove_persistent_memory Boaz Harrosh
2014-09-09 15:48 ` [PATCH 7/9] pmem: Add support for page structs Boaz Harrosh
2014-09-09 15:51 ` [PATCH 9/9] pmem: KISS, remove register_blkdev Boaz Harrosh
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