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Re: [PATCH v8 15/18] mm, fs, dax: handle layout changes to pinned dax mappings

On Thu, Apr 19, 2018 at 3:44 AM, Jan Kara wrote: > On Fri 13-04-18 15:03:51, Dan Williams wrote: >> On Mon, Apr 9, 2018 at 9:51 AM, Dan Williams >> wrote: >> > On Mon, Apr 9, 2018 at 9:49 AM, Jan Kara wrote: >> >> On Sat 07-04-18 12:38:24,

Write through caching on NVDIMM

I was comparing different caching techniques using MTRR entries and I found something strange. Note the output is from a basic utility that uses mmap. NV Memory: Write-back Writes took 2075.993408 Megabytes per second Reads took 2130.842529 Megabytes per second No Errors Found Write-Through

Re: [PATCH v2] dax: allow MAP_SYNC for device-dax mmap() to succeed

On Thu, Apr 19, 2018 at 1:39 PM, Dave Jiang wrote: > MAP_SYNC is a nop for device-dax. Allow MAP_SYNC to succeed on device-dax > to eliminate special casing between device-dax and fs-dax as to when the > flag can be specified. Device-dax users already implicitly assume that

[PATCH v2] dax: allow MAP_SYNC for device-dax mmap() to succeed

MAP_SYNC is a nop for device-dax. Allow MAP_SYNC to succeed on device-dax to eliminate special casing between device-dax and fs-dax as to when the flag can be specified. Device-dax users already implicitly assume that they do not need to call fsync(), and this enables them to explicitly check for

Re: [PATCH] dax: allowing MAP_SYNC for device-dax mmap() to succeed

I'll change the "allowing" to "allow" in the subject so we don't have a gerund phrase. On Thu, Apr 19, 2018 at 11:22 AM, Dave Jiang wrote: > MAP_SYNC is basically a nop for device-dax. However allowing the MAP_SYNC Not "bascially", it *is* a nop for device-dax. I'll change

[PATCH] dax: allowing MAP_SYNC for device-dax mmap() to succeed

MAP_SYNC is basically a nop for device-dax. However allowing the MAP_SYNC flag to succeed on device-dax would make it consistent with fs-dax and reduces confusion for the application writer. This allows the application to assume that it does not need to call fsync() after writes to device-dax

Re: [PATCH ndctl v2 0/3] Documentation: add asciidoctor support

On Thu, 19 Apr 2018 17:11:17 +0200, Takashi Iwai wrote: > > Hi, > > this is a revised patchset to add the support for asciidoctor to > generate documents. The reason for adding this feature is that the > future of asciidoc isn't clear as it's written in python2, which is > now hated by all

[PATCH ndctl v2 2/3] Documentation: Add the support for asciidoctor

This patch adds the support for asciidoctor to be used for generating documents instead of asciidoc. It's enabled via --enable-asciidoctor configure option while asciidoc is used still as default. In addition to the configure option, a few other changes were needed: * some asciidoc.conf python

[PATCH ndctl v2 1/3] Documentation: fix title and section markers

The length of the title and section marker has to be aligned with the previous line. This was caught when running asciidoctor, which is more strict than asciidoc. Also since asciidoctor doesn't like the verse block in some cases, replace the code examples with simpler markers. Signed-off-by:

[PATCH ndctl v2 0/3] Documentation: add asciidoctor support

Hi, this is a revised patchset to add the support for asciidoctor to generate documents. The reason for adding this feature is that the future of asciidoc isn't clear as it's written in python2, which is now hated by all people out of sudden :) The asciidoctor support is enabled via configure

[PATCH ndctl v2 3/3] Documentation: add asciidoctor-extensions.rb to .gitignore

Two new files were added for asciidoctor support. Signed-off-by: Takashi Iwai --- .gitignore | 2 ++ 1 file changed, 2 insertions(+) diff --git a/.gitignore b/.gitignore index 20a04dedd862..c7d11d91398c 100644 --- a/.gitignore +++ b/.gitignore @@ -15,6 +15,8 @@ Makefile.in *.1

Re: [PATCH v8 15/18] mm, fs, dax: handle layout changes to pinned dax mappings

On Fri 13-04-18 15:03:51, Dan Williams wrote: > On Mon, Apr 9, 2018 at 9:51 AM, Dan Williams wrote: > > On Mon, Apr 9, 2018 at 9:49 AM, Jan Kara wrote: > >> On Sat 07-04-18 12:38:24, Dan Williams wrote: > > [..] > >>> I wonder if this can be trivially