* [PATCH v2] doc: Fix some errors in ras.rst
@ 2020-05-06 16:22 Waiman Long
2020-05-06 16:37 ` Matthew Wilcox
0 siblings, 1 reply; 3+ messages in thread
From: Waiman Long @ 2020-05-06 16:22 UTC (permalink / raw)
To: Jonathan Corbet, Tony Luck, Borislav Petkov,
Mauro Carvalho Chehab, James Morse, Robert Richter
Cc: linux-edac, linux-doc, linux-kernel, Matthew Wilcox, Waiman Long
Make some miscellaneous fixes to the first paragraph of "ECC memory":
- Change the incorrect "74 bits" to "72 bits".
- Change "mentioned on" to "mentioned in".
- Remove the extra "extra".
- Rephrase some sentences as suggested by Matthew Wilcox.
Signed-off-by: Waiman Long <longman@redhat.com>
---
Documentation/admin-guide/ras.rst | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/Documentation/admin-guide/ras.rst b/Documentation/admin-guide/ras.rst
index 0310db624964..e48f6bcf305b 100644
--- a/Documentation/admin-guide/ras.rst
+++ b/Documentation/admin-guide/ras.rst
@@ -156,11 +156,11 @@ the labels provided by the BIOS won't match the real ones.
ECC memory
----------
-As mentioned on the previous section, ECC memory has extra bits to be
-used for error correction. So, on 64 bit systems, a memory module
-has 64 bits of *data width*, and 74 bits of *total width*. So, there are
-8 bits extra bits to be used for the error detection and correction
-mechanisms. Those extra bits are called *syndrome*\ [#f1]_\ [#f2]_.
+As mentioned in the previous section, ECC memory has extra bits to be
+used for error correction. In the above example, a memory module has
+64 bits of *data width*, and 72 bits of *total width*. The extra 8
+bits which are used for the error detection and correction mechanisms
+are referred to as the *syndrome*\ [#f1]_\ [#f2]_.
So, when the cpu requests the memory controller to write a word with
*data width*, the memory controller calculates the *syndrome* in real time,
--
2.18.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v2] doc: Fix some errors in ras.rst
2020-05-06 16:22 [PATCH v2] doc: Fix some errors in ras.rst Waiman Long
@ 2020-05-06 16:37 ` Matthew Wilcox
2020-05-15 17:38 ` Jonathan Corbet
0 siblings, 1 reply; 3+ messages in thread
From: Matthew Wilcox @ 2020-05-06 16:37 UTC (permalink / raw)
To: Waiman Long
Cc: Jonathan Corbet, Tony Luck, Borislav Petkov,
Mauro Carvalho Chehab, James Morse, Robert Richter, linux-edac,
linux-doc, linux-kernel
On Wed, May 06, 2020 at 12:22:17PM -0400, Waiman Long wrote:
> Make some miscellaneous fixes to the first paragraph of "ECC memory":
> - Change the incorrect "74 bits" to "72 bits".
> - Change "mentioned on" to "mentioned in".
> - Remove the extra "extra".
> - Rephrase some sentences as suggested by Matthew Wilcox.
>
> Signed-off-by: Waiman Long <longman@redhat.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v2] doc: Fix some errors in ras.rst
2020-05-06 16:37 ` Matthew Wilcox
@ 2020-05-15 17:38 ` Jonathan Corbet
0 siblings, 0 replies; 3+ messages in thread
From: Jonathan Corbet @ 2020-05-15 17:38 UTC (permalink / raw)
To: Matthew Wilcox
Cc: Waiman Long, Tony Luck, Borislav Petkov, Mauro Carvalho Chehab,
James Morse, Robert Richter, linux-edac, linux-doc, linux-kernel
On Wed, 6 May 2020 09:37:15 -0700
Matthew Wilcox <willy@infradead.org> wrote:
> On Wed, May 06, 2020 at 12:22:17PM -0400, Waiman Long wrote:
> > Make some miscellaneous fixes to the first paragraph of "ECC memory":
> > - Change the incorrect "74 bits" to "72 bits".
> > - Change "mentioned on" to "mentioned in".
> > - Remove the extra "extra".
> > - Rephrase some sentences as suggested by Matthew Wilcox.
> >
> > Signed-off-by: Waiman Long <longman@redhat.com>
>
> Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
>
Applied, thanks.
jon
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