/*
 * 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;
}
msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=047487241ff59374fded8c477f21453681f5995c'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers?h=nds-private-remove&amp;id=047487241ff59374fded8c477f21453681f5995c'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?h=nds-private-remove&amp;id=047487241ff59374fded8c477f21453681f5995c'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/musb?h=nds-private-remove&amp;id=047487241ff59374fded8c477f21453681f5995c'>musb</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/musb/blackfin.h?h=nds-private-remove&amp;id=047487241ff59374fded8c477f21453681f5995c'>blackfin.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='047487241ff59374fded8c477f21453681f5995c'/><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>Liam R. Howlett &lt;Liam.Howlett@Oracle.com&gt;</td><td class='right'>2017-01-17 10:59:03 -0500</td></tr>
<tr><th>committer</th><td>David S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2017-01-30 14:27:54 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/musb/blackfin.h?h=nds-private-remove&amp;id=047487241ff59374fded8c477f21453681f5995c'>047487241ff59374fded8c477f21453681f5995c</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/musb/blackfin.h?id=047487241ff59374fded8c477f21453681f5995c'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=047487241ff59374fded8c477f21453681f5995c'>1c2616bd373ce5ea28aac2a53e32f5b5834901ce</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/musb/blackfin.h?h=nds-private-remove&amp;id=047487241ff59374fded8c477f21453681f5995c'>drivers/usb/musb/blackfin.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/musb/blackfin.h?h=nds-private-remove&amp;id=7a7dc961a28b965a0d0303c2e989df17b411708b'>7a7dc961a28b965a0d0303c2e989df17b411708b</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/musb/blackfin.h?h=nds-private-remove&amp;id=047487241ff59374fded8c477f21453681f5995c&amp;id2=7a7dc961a28b965a0d0303c2e989df17b411708b'>diff</a>)</td></tr></table>
<div class='commit-subject'>sparc64: Handle PIO &amp; MEM non-resumable errors.</div><div class='commit-msg'>User processes trying to access an invalid memory address via PIO will
receive a SIGBUS signal instead of causing a panic.  Memory errors will
receive a SIGKILL since a SIGBUS may result in a coredump which may
attempt to repeat the faulting access.

Signed-off-by: Liam R. Howlett &lt;Liam.Howlett@Oracle.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=047487241ff59374fded8c477f21453681f5995c'>Diffstat</a> (limited to 'drivers/usb/musb/blackfin.h')</div><table summary='diffstat' class='diffstat'>