/*
 * 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;
}
type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=cfee5d63767b2e7997c1f36420d008abbe61565c'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers?id=cfee5d63767b2e7997c1f36420d008abbe61565c'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?id=cfee5d63767b2e7997c1f36420d008abbe61565c'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/host?id=cfee5d63767b2e7997c1f36420d008abbe61565c'>host</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/host/ohci-dbg.c?id=cfee5d63767b2e7997c1f36420d008abbe61565c'>ohci-dbg.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='cfee5d63767b2e7997c1f36420d008abbe61565c'/><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>Zach Ploskey &lt;zach@ploskey.com&gt;</td><td class='right'>2017-01-22 00:47:19 -0800</td></tr>
<tr><th>committer</th><td>Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;</td><td class='right'>2017-01-22 12:47:06 +0200</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/host/ohci-dbg.c?id=cfee5d63767b2e7997c1f36420d008abbe61565c'>cfee5d63767b2e7997c1f36420d008abbe61565c</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/host/ohci-dbg.c?id=cfee5d63767b2e7997c1f36420d008abbe61565c'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=cfee5d63767b2e7997c1f36420d008abbe61565c'>c66a512525d224f9675c33a8d156e0f058db1de6</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/host/ohci-dbg.c?id=cfee5d63767b2e7997c1f36420d008abbe61565c'>drivers/usb/host/ohci-dbg.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/host/ohci-dbg.c?id=5a00b6c2438460b870a451f14593fc40d3c7edf6'>5a00b6c2438460b870a451f14593fc40d3c7edf6</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/host/ohci-dbg.c?id=cfee5d63767b2e7997c1f36420d008abbe61565c&amp;id2=5a00b6c2438460b870a451f14593fc40d3c7edf6'>diff</a>)</td></tr></table>
<div class='commit-subject'>platform/x86: ideapad-laptop: handle ACPI event 1</div><div class='commit-msg'>On Ideapad laptops, ACPI event 1 is currently not handled. Many models
log "ideapad_laptop: Unknown event: 1" every 20 seconds or so while
running on battery power. Some convertible laptops receive this event
when switching in and out of tablet mode.

This adds and additional case for event 1 in ideapad_acpi_notify to call
ideapad_input_report(priv, vpc_bit), so that the event is reported to
userspace and we avoid unnecessary logging.

Fixes bug #107481 (https://bugzilla.kernel.org/show_bug.cgi?id=107481)
Fixes bug #65751 (https://bugzilla.kernel.org/show_bug.cgi?id=65751)

Signed-off-by: Zach Ploskey &lt;zach@ploskey.com&gt;
Signed-off-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=cfee5d63767b2e7997c1f36420d008abbe61565c'>Diffstat</a> (limited to 'drivers/usb/host/ohci-dbg.c')</div><table summary='diffstat' class='diffstat'>