From: Christoph Hellwig <hch@infradead.org>
To: Dongsu Park <dongsu.park@profitbricks.com>
Cc: linux-kernel@vger.kernel.org,
Christoph Hellwig <hch@infradead.org>,
Kent Overstreet <kmo@daterainc.com>, Jens Axboe <axboe@kernel.dk>,
Al Viro <viro@zeniv.linux.org.uk>
Subject: Re: [PATCH v2 2/7] block: rewrite __bio_copy_iov()
Date: Thu, 15 Jan 2015 09:10:58 -0800 [thread overview]
Message-ID: <20150115171058.GA28208@infradead.org> (raw)
In-Reply-To: <0bdbbd2ef9d449be2d00e01ca7dc7f101b6cfb88.1421052656.git.dongsu.park@profitbricks.com>
> +/**
> + * __bio_copy_iov - copy all pages between bio and iov_iter
> + * @bio: The &struct bio which describes the I/O
> + * @iter: iov_iter either as source or destination
> + * @to_iov: whether to %READ (0) or %WRITE (1)
> + *
> + * Simple wrapper around __bio_copy_iov_{write,read}().
> + * Returns 0 on success, or the error returned as-is on failure.
> + */
> +static inline int __bio_copy_iov(struct bio *bio, struct iov_iter iter,
> + int to_iov)
> +{
> + if (to_iov == WRITE)
> + return __bio_copy_iov_write(bio, iter);
> + else
> + return __bio_copy_iov_read(bio, iter);
> }
No need to keep this wrapper..
next prev parent reply other threads:[~2015-01-15 17:11 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-12 11:43 [RFC PATCH v2 0/7] preparation for block layer simplification Dongsu Park
2015-01-12 11:43 ` [PATCH v2 1/7] block: replace sg_iovec with iov_iter Dongsu Park
2015-01-12 11:43 ` [PATCH v2 2/7] block: rewrite __bio_copy_iov() Dongsu Park
2015-01-12 11:44 ` [PATCH v2 3/7] block: refactor iov_count_pages() from bio_{copy,map}_user_iov() Dongsu Park
2015-01-12 11:44 ` [PATCH v2 4/7] block: refactor bio_get_user_pages() from __bio_map_user_iov() Dongsu Park
2015-01-12 11:44 ` [PATCH v2 5/7] md/raid10: make sync_request_write() call bio_copy_data() Dongsu Park
2015-01-12 11:44 ` [PATCH v2 6/7] fs: make _submit_bh consistent with generic bio chaining Dongsu Park
2015-01-12 11:44 ` [PATCH v2 7/7] PM: submit bio in a sane way in cases without bio_chain Dongsu Park
2015-01-30 0:49 ` Rafael J. Wysocki
2015-01-16 11:44 ` [PATCH v2 4/7] block: refactor bio_get_user_pages() from __bio_map_user_iov() Christoph Hellwig
2015-01-16 11:41 ` [PATCH v2 3/7] block: refactor iov_count_pages() from bio_{copy,map}_user_iov() Christoph Hellwig
2015-01-15 17:10 ` Christoph Hellwig [this message]
2015-01-15 18:18 ` [PATCH v2 2/7] block: rewrite __bio_copy_iov() Christoph Hellwig
2015-01-16 11:31 ` Christoph Hellwig
2015-01-16 11:58 ` Dongsu Park
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