/*
 * Copyright (c) 2000-2001 Christoph Hellwig.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL").
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

/*
 * Veritas filesystem driver - support for 'immed' inodes.
 */
#include <linux/fs.h>
#include <linux/pagemap.h>

#include "vxfs.h"
#include "vxfs_extern.h"
#include "vxfs_inode.h"


static int	vxfs_immed_readpage(struct file *, struct page *);

/*
 * Address space operations for immed files and directories.
 */
const struct address_space_operations vxfs_immed_aops = {
	.readpage =		vxfs_immed_readpage,
};

/**
 * vxfs_immed_readpage - read part of an immed inode into pagecache
 * @file:	file context (unused)
 * @page:	page frame to fill in.
 *
 * Description:
 *   vxfs_immed_readpage reads a part of the immed area of the
 *   file that hosts @pp into the pagecache.
 *
 * Returns:
 *   Zero on success, else a negative error code.
 *
 * Locking status:
 *   @page is locked and will be unlocked.
 */
static int
vxfs_immed_readpage(struct file *fp, struct page *pp)
{
	struct vxfs_inode_info	*vip = VXFS_INO(pp->mapping->host);
	u_int64_t	offset = (u_int64_t)pp->index << PAGE_SHIFT;
	caddr_t		kaddr;

	kaddr = kmap(pp);
	memcpy(kaddr, vip->vii_immed.vi_immed + offset, PAGE_SIZE);
	kunmap(pp);
	
	flush_dcache_page(pp);
	SetPageUptodate(pp);
        unlock_page(pp);

	return 0;
}
8444a'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=35397edeb14f033e51296400ff31d159dbb8444a'>include</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='35397edeb14f033e51296400ff31d159dbb8444a'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Sylwester Nawrocki &lt;s.nawrocki@samsung.com&gt;</td><td class='right'>2016-08-04 12:22:32 +0200</td></tr>
<tr><th>committer</th><td>Mark Brown &lt;broonie@kernel.org&gt;</td><td class='right'>2016-08-08 11:54:50 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include?id=35397edeb14f033e51296400ff31d159dbb8444a'>35397edeb14f033e51296400ff31d159dbb8444a</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include?id=35397edeb14f033e51296400ff31d159dbb8444a'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=35397edeb14f033e51296400ff31d159dbb8444a'>e2364537af0e82f72da71fd5f3f6c238eaa5db42</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include?id=35397edeb14f033e51296400ff31d159dbb8444a'>include</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include?id=29b4817d4018df78086157ea3a55c1d9424a7cfc'>29b4817d4018df78086157ea3a55c1d9424a7cfc</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include?id=35397edeb14f033e51296400ff31d159dbb8444a&amp;id2=29b4817d4018df78086157ea3a55c1d9424a7cfc'>diff</a>)</td></tr></table>
<div class='commit-subject'>ASoC: dwc: Drop DMA channel names assignment</div><div class='commit-msg'>The dw_configure_dai_by_dt() function and further dev-&gt;{play,capture}
_dma_data.dt data structures seem to be used in this driver only in case
of a system using devicetree, thus chan_name assignments have no effect
since they will be ignored in dmaengine_pcm_request_chan_of() call and
will be substituted with values taken form dmaengine_pcm_dma_channel_names[]
table ("tx", "rx").

Also there is no any "TX", "RX" dma-names entries in arch/arm/boot/dts,
only lower case "tx", "rx" seem to be used.

Lastly, this driver doesn't set SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME
flag when registering a dmaengine PCM to indicate the chan_name should be
used.

My intention is to eventually remove the struct snd_dmaengine_dai_dma_data
chan_name field as there is also a chan_names[] field in struct
snd_dmaengine_pcm_config which can be used for same purpose.

Signed-off-by: Sylwester Nawrocki &lt;s.nawrocki@samsung.com&gt;
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=35397edeb14f033e51296400ff31d159dbb8444a'>Diffstat</a> (limited to 'include')</div><table summary='diffstat' class='diffstat'>