From: Alistair Popple <apopple@nvidia.com>
To: John Hubbard <jhubbard@nvidia.com>
Cc: linux-mm@kvack.org, 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: Mon, 15 Apr 2024 18:41:51 +1000 [thread overview]
Message-ID: <874jc32f1e.fsf@nvdebian.thelocal> (raw)
In-Reply-To: <748fb175-3c5b-4571-9278-1580747a746a@nvidia.com>
John Hubbard <jhubbard@nvidia.com> writes:
> 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?
Yep. Thanks.
> thanks,
next prev parent reply other threads:[~2024-04-15 8:42 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
2024-04-15 8:41 ` Alistair Popple [this message]
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
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