From: John Hubbard <jhubbard@nvidia.com>
To: Alistair Popple <apopple@nvidia.com>, <linux-mm@kvack.org>
Cc: <david@fromorbit.com>, <dan.j.williams@intel.com>,
<rcampbell@nvidia.com>, <willy@infradead.org>, <jgg@nvidia.com>,
<linux-fsdevel@vger.kernel.org>, <jack@suse.cz>,
<djwong@kernel.org>, <hch@lst.de>, <david@redhat.com>,
<ruansy.fnst@fujitsu.com>, <nvdimm@lists.linux.dev>,
<linux-xfs@vger.kernel.org>, <linux-ext4@vger.kernel.org>,
<jglisse@redhat.com>
Subject: Re: [RFC 05/10] fs/dax: Refactor wait for dax idle page
Date: Sat, 13 Apr 2024 13:19:07 -0700 [thread overview]
Message-ID: <748fb175-3c5b-4571-9278-1580747a746a@nvidia.com> (raw)
In-Reply-To: <db13f495fc0addcff12b6b065b7a6b25f09c4be7.1712796818.git-series.apopple@nvidia.com>
On 4/10/24 5:57 PM, Alistair Popple wrote:
...
> diff --git a/include/linux/dax.h b/include/linux/dax.h
> index 22cd990..bced4d4 100644
> --- a/include/linux/dax.h
> +++ b/include/linux/dax.h
> @@ -212,6 +212,17 @@ int dax_zero_range(struct inode *inode, loff_t pos, loff_t len, bool *did_zero,
> int dax_truncate_page(struct inode *inode, loff_t pos, bool *did_zero,
> const struct iomap_ops *ops);
>
> +static inline int dax_wait_page_idle(struct page *page,
> + void (cb)(struct inode *),
> + struct inode *inode)
> +{
> + int ret;
> +
> + ret = ___wait_var_event(page, page_ref_count(page) == 1,
> + TASK_INTERRUPTIBLE, 0, 0, cb(inode));
> + return ret;
> +}
Or just:
{
return ___wait_var_event(page, page_ref_count(page) == 1,
TASK_INTERRUPTIBLE, 0, 0, cb(inode));
}
...yes?
thanks,
--
John Hubbard
NVIDIA
next prev parent reply other threads:[~2024-04-13 20:19 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-11 0:57 [RFC 00/10] fs/dax: Fix FS DAX page reference counts Alistair Popple
2024-04-11 0:57 ` [RFC 01/10] mm/gup.c: Remove redundant check for PCI P2PDMA page Alistair Popple
2024-04-11 12:59 ` Jason Gunthorpe
2024-04-11 13:47 ` David Hildenbrand
2024-04-12 1:37 ` Alistair Popple
2024-04-11 0:57 ` [RFC 02/10] mm/hmm: Remove dead check for HugeTLB and FS DAX Alistair Popple
2024-04-11 12:25 ` Jason Gunthorpe
2024-04-11 13:37 ` Peter Xu
2024-04-12 1:28 ` Alistair Popple
2024-04-11 0:57 ` [RFC 03/10] pci/p2pdma: Don't initialise page refcount to one Alistair Popple
2024-04-11 12:29 ` Jason Gunthorpe
2024-04-12 5:40 ` Alistair Popple
2024-04-12 17:20 ` Dan Williams
2024-05-09 21:59 ` Logan Gunthorpe
2024-05-09 23:14 ` Alistair Popple
2024-04-11 0:57 ` [RFC 04/10] fs/dax: Don't track page mapping/index Alistair Popple
2024-04-12 15:22 ` Jan Kara
2024-04-12 17:31 ` Dan Williams
2024-04-15 7:03 ` Alistair Popple
2024-04-15 20:51 ` Dan Williams
2024-04-16 0:07 ` Alistair Popple
2024-04-16 0:36 ` Dan Williams
2024-04-12 17:21 ` Dan Williams
2024-04-11 0:57 ` [RFC 05/10] fs/dax: Refactor wait for dax idle page Alistair Popple
2024-04-12 14:37 ` Jan Kara
2024-04-13 20:19 ` John Hubbard [this message]
2024-04-15 8:41 ` Alistair Popple
2024-04-11 0:57 ` [RFC 06/10] fs/dax: Add dax_page_free callback Alistair Popple
2024-04-11 0:57 ` [RFC 07/10] mm: Allow compound zone device pages Alistair Popple
2024-04-11 12:32 ` Jason Gunthorpe
2024-04-11 14:10 ` Matthew Wilcox
2024-04-12 1:38 ` Alistair Popple
2024-04-11 0:57 ` [RFC 08/10] fs/dax: Properly refcount fs dax pages Alistair Popple
2024-04-11 0:57 ` [RFC 09/10] mm/khugepage.c: Warn if trying to scan devmap pmd Alistair Popple
2024-04-11 13:45 ` David Hildenbrand
2024-04-12 1:34 ` Alistair Popple
2024-04-11 0:57 ` [RFC 10/10] mm: Remove pXX_devmap Alistair Popple
2024-04-11 12:57 ` Jason Gunthorpe
2024-04-11 17:28 ` [RFC 00/10] fs/dax: Fix FS DAX page reference counts Dan Williams
2024-04-11 17:35 ` Jason Gunthorpe
2024-04-11 17:56 ` Dan Williams
2024-04-12 3:54 ` Alistair Popple
2024-04-12 6:55 ` Alistair Popple
2024-04-12 11:53 ` Jason Gunthorpe
2024-04-12 17:32 ` Dan Williams
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=748fb175-3c5b-4571-9278-1580747a746a@nvidia.com \
--to=jhubbard@nvidia.com \
--cc=apopple@nvidia.com \
--cc=dan.j.williams@intel.com \
--cc=david@fromorbit.com \
--cc=david@redhat.com \
--cc=djwong@kernel.org \
--cc=hch@lst.de \
--cc=jack@suse.cz \
--cc=jgg@nvidia.com \
--cc=jglisse@redhat.com \
--cc=linux-ext4@vger.kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-xfs@vger.kernel.org \
--cc=nvdimm@lists.linux.dev \
--cc=rcampbell@nvidia.com \
--cc=ruansy.fnst@fujitsu.com \
--cc=willy@infradead.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 read-only IMAP folder(s) and NNTP newsgroup(s).