From: David Howells <dhowells@redhat.com>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: dhowells@redhat.com, Jens Axboe <axboe@kernel.dk>,
Al Viro <viro@zeniv.linux.org.uk>,
Christoph Hellwig <hch@infradead.org>,
Matthew Wilcox <willy@infradead.org>, Jan Kara <jack@suse.cz>,
Jeff Layton <jlayton@kernel.org>,
David Hildenbrand <david@redhat.com>,
Jason Gunthorpe <jgg@nvidia.com>,
Logan Gunthorpe <logang@deltatee.com>,
Hillf Danton <hdanton@sina.com>,
linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Christoph Hellwig <hch@lst.de>,
John Hubbard <jhubbard@nvidia.com>,
linux-unionfs@vger.kernel.org
Subject: Re: [PATCH v14 05/17] overlayfs: Implement splice-read
Date: Wed, 15 Feb 2023 15:03:30 +0000 [thread overview]
Message-ID: <3367219.1676473410@warthog.procyon.org.uk> (raw)
In-Reply-To: <CAJfpegshWgUYZLc5v-Vwf6g3ZGmfnHsT_t9JLwxFoV8wPrvBnA@mail.gmail.com>
Miklos Szeredi <miklos@szeredi.hu> wrote:
> > + ret = -EINVAL;
> > + if (in->f_flags & O_DIRECT &&
> > + !(real.file->f_mode & FMODE_CAN_ODIRECT))
> > + goto out_fdput;
>
> This is unnecessary, as it was already done in ovl_real_fdget() ->
> ovl_real_fdget_meta() -> ovl_change_flags().
Does that mean ovl_read_iter() and ovl_write_iter() shouldn't be doing it,
then?
David
next prev parent reply other threads:[~2023-02-15 15:04 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-14 17:13 [PATCH v14 00/17] iov_iter: Improve page extraction (pin or just list) David Howells
2023-02-14 17:13 ` [PATCH v14 01/17] mm: Pass info, not iter, into filemap_get_pages() David Howells
2023-02-14 17:13 ` [PATCH v14 02/17] splice: Add a func to do a splice from a buffered file without ITER_PIPE David Howells
2023-02-18 2:41 ` Ming Lei
2023-02-18 9:25 ` David Howells
2023-02-14 17:13 ` [PATCH v14 03/17] splice: Add a func to do a splice from an O_DIRECT " David Howells
2023-02-14 17:13 ` [PATCH v14 04/17] shmem: Implement splice-read David Howells
2023-02-14 17:13 ` [PATCH v14 05/17] overlayfs: " David Howells
2023-02-15 14:21 ` Miklos Szeredi
2023-02-15 15:03 ` David Howells [this message]
2023-02-15 15:32 ` Miklos Szeredi
2023-02-15 15:40 ` [PATCH v15 " David Howells
2023-02-15 15:50 ` Miklos Szeredi
2023-02-15 15:53 ` Matthew Wilcox
2023-02-15 16:38 ` Christoph Hellwig
2023-02-15 16:40 ` Miklos Szeredi
2023-02-15 15:58 ` David Howells
2023-02-14 17:13 ` [PATCH v14 06/17] coda: " David Howells
2023-02-14 18:04 ` Jan Harkes
2023-02-14 17:13 ` [PATCH v14 07/17] tty, proc, kernfs, random: Use direct_splice_read() David Howells
2023-02-14 17:13 ` [PATCH v14 08/17] splice: Do splice read from a file without using ITER_PIPE David Howells
2023-02-14 17:24 ` Mezgani Ali
2023-02-17 8:22 ` Ming Lei
2023-02-17 9:18 ` Ming Lei
2023-02-17 20:39 ` Alexander Egorenkov
2023-02-17 20:59 ` egorenar
2023-02-17 21:24 ` David Howells
2023-02-17 21:16 ` David Howells
2023-02-17 21:47 ` David Howells
2023-02-18 8:29 ` Alexander Egorenkov
2023-02-18 9:18 ` David Howells
2023-02-14 17:13 ` [PATCH v14 09/17] iov_iter: Kill ITER_PIPE David Howells
2023-02-14 17:13 ` [PATCH v14 10/17] iov_iter: Define flags to qualify page extraction David Howells
2023-02-14 17:13 ` [PATCH v14 11/17] iov_iter: Add a function to extract a page list from an iterator David Howells
2023-02-14 17:13 ` [PATCH v14 12/17] iomap: Don't get an reference on ZERO_PAGE for direct I/O block zeroing David Howells
2023-02-14 17:13 ` [PATCH v14 13/17] block: Fix bio_flagged() so that gcc can better optimise it David Howells
2023-02-14 17:13 ` [PATCH v14 14/17] block: Replace BIO_NO_PAGE_REF with BIO_PAGE_REFFED with inverted logic David Howells
2023-02-14 17:13 ` [PATCH v14 15/17] block: Add BIO_PAGE_PINNED and associated infrastructure David Howells
2023-02-14 17:13 ` [PATCH v14 16/17] block: Convert bio_iov_iter_get_pages to use iov_iter_extract_pages David Howells
2023-02-14 17:13 ` [PATCH v14 17/17] block: convert bio_map_user_iov " David Howells
2023-02-14 22:56 ` [PATCH v14 00/17] iov_iter: Improve page extraction (pin or just list) David Howells
2023-02-14 23:05 ` Jens Axboe
2023-02-15 8:07 ` David Howells
2023-02-15 14:23 ` Christoph Hellwig
2023-02-15 14:38 ` Christoph Hellwig
2023-02-15 15:43 ` David Howells
2023-02-15 8:20 ` David Howells
2023-02-14 23:01 ` David Howells
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