From: Goldwyn Rodrigues <rgoldwyn-l3A5Bk7waGM@public.gmane.org>
To: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
Cc: linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
jack-IBi9RG/b67k@public.gmane.org,
hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org,
linux-block-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org,
linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org
Subject: Re: [PATCH 0/10 v12] No wait AIO
Date: Thu, 15 Jun 2017 18:49:48 -0500 [thread overview]
Message-ID: <77f14155-f706-4bc4-0e52-39e8487413d5@suse.de> (raw)
In-Reply-To: <20170615150100.52c0387406e6ce5167dc098e-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
On 06/15/2017 05:01 PM, Andrew Morton wrote:
> On Thu, 15 Jun 2017 16:51:41 -0500 Goldwyn Rodrigues <rgoldwyn-l3A5Bk7waGM@public.gmane.org> wrote:
>
>>> I have only minor quibbles - I'll grab the patch series for some -next
>>> testing (at least).
>>>
>>
>> I agree to the quibbles you have on patch 02/10. Should I send the
>> entire fixed series, just the 02/10 patch, or would you prefer to fix it?
>
> This?
Perfect. Thanks!
>
> --- a/include/linux/fs.h~fs-introduce-filemap_range_has_page-fix
> +++ a/include/linux/fs.h
> @@ -2517,8 +2517,8 @@ extern int filemap_fdatawait(struct addr
> extern void filemap_fdatawait_keep_errors(struct address_space *);
> extern int filemap_fdatawait_range(struct address_space *, loff_t lstart,
> loff_t lend);
> -extern int filemap_range_has_page(struct address_space *, loff_t lstart,
> - loff_t lend);
> +extern bool filemap_range_has_page(struct address_space *, loff_t lstart,
> + loff_t lend);
> extern int filemap_write_and_wait(struct address_space *mapping);
> extern int filemap_write_and_wait_range(struct address_space *mapping,
> loff_t lstart, loff_t lend);
> diff -puN mm/filemap.c~fs-introduce-filemap_range_has_page-fix mm/filemap.c
> --- a/mm/filemap.c~fs-introduce-filemap_range_has_page-fix
> +++ a/mm/filemap.c
> @@ -378,31 +378,30 @@ EXPORT_SYMBOL(filemap_flush);
>
> /**
> * filemap_range_has_page - check if a page exists in range.
> - * @mapping: address space structure to wait for
> + * @mapping: address space within which to check
> * @start_byte: offset in bytes where the range starts
> * @end_byte: offset in bytes where the range ends (inclusive)
> *
> * Find at least one page in the range supplied, usually used to check if
> * direct writing in this range will trigger a writeback.
> */
> -int filemap_range_has_page(struct address_space *mapping,
> - loff_t start_byte, loff_t end_byte)
> +bool filemap_range_has_page(struct address_space *mapping,
> + loff_t start_byte, loff_t end_byte)
> {
> pgoff_t index = start_byte >> PAGE_SHIFT;
> pgoff_t end = end_byte >> PAGE_SHIFT;
> struct pagevec pvec;
> - int ret;
> + bool ret;
>
> if (end_byte < start_byte)
> - return 0;
> + return false;
>
> if (mapping->nrpages == 0)
> - return 0;
> + return false;
>
> pagevec_init(&pvec, 0);
> - ret = pagevec_lookup(&pvec, mapping, index, 1);
> - if (!ret)
> - return 0;
> + if (!pagevec_lookup(&pvec, mapping, index, 1))
> + return false;
> ret = (pvec.pages[0]->index <= end);
> pagevec_release(&pvec);
> return ret;
> _
>
--
Goldwyn
next prev parent reply other threads:[~2017-06-15 23:49 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-15 15:59 [PATCH 0/10 v12] No wait AIO Goldwyn Rodrigues
2017-06-15 15:59 ` [PATCH 01/10] fs: Separate out kiocb flags setup based on RWF_* flags Goldwyn Rodrigues
2017-06-15 15:59 ` [PATCH 02/10] fs: Introduce filemap_range_has_page() Goldwyn Rodrigues
[not found] ` <20170615160002.17233-3-rgoldwyn-l3A5Bk7waGM@public.gmane.org>
2017-06-15 18:25 ` Andrew Morton
2017-06-15 15:59 ` [PATCH 03/10] fs: Use RWF_* flags for AIO operations Goldwyn Rodrigues
2017-06-15 15:59 ` [PATCH 04/10] fs: Introduce RWF_NOWAIT and FMODE_AIO_NOWAIT Goldwyn Rodrigues
[not found] ` <20170615160002.17233-5-rgoldwyn-l3A5Bk7waGM@public.gmane.org>
2017-06-17 4:09 ` Al Viro
2017-06-17 11:53 ` Christoph Hellwig
2017-06-15 15:59 ` [PATCH 05/10] fs: return if direct write will trigger writeback Goldwyn Rodrigues
[not found] ` <20170615160002.17233-1-rgoldwyn-l3A5Bk7waGM@public.gmane.org>
2017-06-15 15:59 ` [PATCH 06/10] fs: Introduce IOMAP_NOWAIT Goldwyn Rodrigues
2017-06-15 18:25 ` [PATCH 0/10 v12] No wait AIO Andrew Morton
2017-06-15 21:51 ` Goldwyn Rodrigues
[not found] ` <1003b3e8-a775-e8ac-d1ca-11055d941a98-l3A5Bk7waGM@public.gmane.org>
2017-06-15 22:01 ` Andrew Morton
[not found] ` <20170615150100.52c0387406e6ce5167dc098e-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2017-06-15 23:49 ` Goldwyn Rodrigues [this message]
2017-06-16 8:54 ` Jan Kara
2017-06-15 15:59 ` [PATCH 07/10] block: return on congested block device Goldwyn Rodrigues
2017-06-15 16:42 ` Jens Axboe
2017-06-15 16:00 ` [PATCH 08/10] ext4: nowait aio support Goldwyn Rodrigues
2017-06-15 16:00 ` [PATCH 09/10] xfs: " Goldwyn Rodrigues
2017-06-15 16:00 ` [PATCH 10/10] btrfs: " Goldwyn Rodrigues
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