From: Matthew Wilcox <willy@infradead.org>
To: John Hubbard <jhubbard@nvidia.com>
Cc: Jan Kara <jack@suse.cz>,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 8/8] xarray: Don't clear marks in xas_store()
Date: Wed, 5 Feb 2020 18:21:44 -0800 [thread overview]
Message-ID: <20200206022144.GU8731@bombadil.infradead.org> (raw)
In-Reply-To: <8ea2682b-7240-dca3-b123-2df7d0c994ba@nvidia.com>
On Wed, Feb 05, 2020 at 02:19:34PM -0800, John Hubbard wrote:
> So if we do this, I think we'd also want something like this (probably with
> better wording, this is just a first draft):
>
> diff --git a/Documentation/core-api/xarray.rst b/Documentation/core-api/xarray.rst
> index 640934b6f7b4..8adeaa8c012e 100644
> --- a/Documentation/core-api/xarray.rst
> +++ b/Documentation/core-api/xarray.rst
> @@ -66,10 +66,11 @@ pointer at every index.
> You can then set entries using xa_store() and get entries
> using xa_load(). xa_store will overwrite any entry with the
> new entry and return the previous entry stored at that index. You can
> -use xa_erase() instead of calling xa_store() with a
> +use xa_erase() plus xas_init_marks(), instead of calling xa_store() with a
Woah, woah, woah. xa_erase() re-initialises the marks. Nobody's going
to change that. Don't confuse the porcelain and plumbing APIs.
next prev parent reply other threads:[~2020-02-06 2:21 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-04 14:25 [PATCH 0/8] mm: Speedup page cache truncation Jan Kara
2020-02-04 14:25 ` [PATCH 1/8] xarray: Fix premature termination of xas_for_each_marked() Jan Kara
2020-03-12 21:45 ` Matthew Wilcox
2020-03-16 9:16 ` Jan Kara
2020-02-04 14:25 ` [PATCH 2/8] xarray: Provide xas_erase() helper Jan Kara
2020-03-14 19:54 ` Matthew Wilcox
2020-03-16 9:21 ` Jan Kara
2020-03-17 15:28 ` Matthew Wilcox
2020-04-15 16:12 ` Jan Kara
2020-02-04 14:25 ` [PATCH 3/8] xarray: Explicitely set XA_FREE_MARK in __xa_cmpxchg() Jan Kara
2020-02-05 18:45 ` Jason Gunthorpe
2020-02-06 8:03 ` Jan Kara
2020-03-17 15:12 ` Matthew Wilcox
2020-02-04 14:25 ` [PATCH 4/8] mm: Use xas_erase() in page_cache_delete_batch() Jan Kara
2020-02-04 14:25 ` [PATCH 5/8] dax: Use xas_erase() in __dax_invalidate_entry() Jan Kara
2020-02-04 14:25 ` [PATCH 6/8] idr: Use xas_erase() in ida_destroy() Jan Kara
2020-02-04 14:25 ` [PATCH 7/8] mm: Use xas_erase() in collapse_file() Jan Kara
2020-02-04 14:25 ` [PATCH 8/8] xarray: Don't clear marks in xas_store() Jan Kara
2020-02-05 18:43 ` Jason Gunthorpe
2020-02-05 21:59 ` Matthew Wilcox
2020-02-06 13:49 ` Jason Gunthorpe
2020-02-06 14:36 ` Jan Kara
2020-02-06 14:49 ` Jason Gunthorpe
2020-02-05 22:19 ` John Hubbard
2020-02-06 2:21 ` Matthew Wilcox [this message]
2020-02-06 3:48 ` John Hubbard
2020-02-06 4:28 ` Matthew Wilcox
2020-02-06 4:37 ` John Hubbard
2020-02-06 8:36 ` Jan Kara
2020-02-06 8:04 ` Jan Kara
2020-02-06 14:40 ` [PATCH 0/8] mm: Speedup page cache truncation David Sterba
2020-02-18 9:25 ` Jan Kara
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=20200206022144.GU8731@bombadil.infradead.org \
--to=willy@infradead.org \
--cc=jack@suse.cz \
--cc=jhubbard@nvidia.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-mm@kvack.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).