/*
 *   fs/cifs/export.c
 *
 *   Copyright (C) International Business Machines  Corp., 2007
 *   Author(s): Steve French (sfrench@us.ibm.com)
 *
 *   Common Internet FileSystem (CIFS) client
 *
 *   Operations related to support for exporting files via NFSD
 *
 *   This library is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser General Public License as published
 *   by the Free Software Foundation; either version 2.1 of the License, or
 *   (at your option) any later version.
 *
 *   This library is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
 *   the GNU Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public License
 *   along with this library; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

 /*
  * See Documentation/filesystems/nfs/Exporting
  * and examples in fs/exportfs
  *
  * Since cifs is a network file system, an "fsid" must be included for
  * any nfs exports file entries which refer to cifs paths.  In addition
  * the cifs mount must be mounted with the "serverino" option (ie use stable
  * server inode numbers instead of locally generated temporary ones).
  * Although cifs inodes do not use generation numbers (have generation number
  * of zero) - the inode number alone should be good enough for simple cases
  * in which users want to export cifs shares with NFS. The decode and encode
  * could be improved by using a new routine which expects 64 bit inode numbers
  * instead of the default 32 bit routines in fs/exportfs
  *
  */

#include <linux/fs.h>
#include <linux/exportfs.h>
#include "cifsglob.h"
#include "cifs_debug.h"
#include "cifsfs.h"

#ifdef CONFIG_CIFS_NFSD_EXPORT
static struct dentry *cifs_get_parent(struct dentry *dentry)
{
	/* BB need to add code here eventually to enable export via NFSD */
	cifs_dbg(FYI, "get parent for %p\n", dentry);
	return ERR_PTR(-EACCES);
}

const struct export_operations cifs_export_ops = {
	.get_parent = cifs_get_parent,
/*	Following five export operations are unneeded so far and can default:
	.get_dentry =
	.get_name =
	.find_exported_dentry =
	.decode_fh =
	.encode_fs =  */
};

#endif /* CONFIG_CIFS_NFSD_EXPORT */

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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=bfb34527a32a1a576d9bfb7026d3ab0369a6cd60'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers?id=bfb34527a32a1a576d9bfb7026d3ab0369a6cd60'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?id=bfb34527a32a1a576d9bfb7026d3ab0369a6cd60'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/gadget?id=bfb34527a32a1a576d9bfb7026d3ab0369a6cd60'>gadget</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/gadget/udc?id=bfb34527a32a1a576d9bfb7026d3ab0369a6cd60'>udc</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/gadget/udc/udc-xilinx.c?id=bfb34527a32a1a576d9bfb7026d3ab0369a6cd60'>udc-xilinx.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='bfb34527a32a1a576d9bfb7026d3ab0369a6cd60'/><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>Dan Williams &lt;dan.j.williams@intel.com&gt;</td><td class='right'>2017-02-04 14:47:31 -0800</td></tr>
<tr><th>committer</th><td>Dan Williams &lt;dan.j.williams@intel.com&gt;</td><td class='right'>2017-02-04 14:47:31 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/gadget/udc/udc-xilinx.c?id=bfb34527a32a1a576d9bfb7026d3ab0369a6cd60'>bfb34527a32a1a576d9bfb7026d3ab0369a6cd60</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/gadget/udc/udc-xilinx.c?id=bfb34527a32a1a576d9bfb7026d3ab0369a6cd60'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=bfb34527a32a1a576d9bfb7026d3ab0369a6cd60'>db4d58c52d766eeb0c87cd6dba005839de933ede</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/gadget/udc/udc-xilinx.c?id=bfb34527a32a1a576d9bfb7026d3ab0369a6cd60'>drivers/usb/gadget/udc/udc-xilinx.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/gadget/udc/udc-xilinx.c?id=e471486c13b82b1338d49c798f78bb62b1ed0a9e'>e471486c13b82b1338d49c798f78bb62b1ed0a9e</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/gadget/udc/udc-xilinx.c?id=bfb34527a32a1a576d9bfb7026d3ab0369a6cd60&amp;id2=e471486c13b82b1338d49c798f78bb62b1ed0a9e'>diff</a>)</td></tr></table>
<div class='commit-subject'>libnvdimm, pfn: fix memmap reservation size versus 4K alignment</div><div class='commit-msg'>When vmemmap_populate() allocates space for the memmap it does so in 2MB
sized chunks. The libnvdimm-pfn driver incorrectly accounts for this
when the alignment of the device is set to 4K. When this happens we
trigger memory allocation failures in altmap_alloc_block_buf() and
trigger warnings of the form:

 WARNING: CPU: 0 PID: 3376 at arch/x86/mm/init_64.c:656 arch_add_memory+0xe4/0xf0
 [..]
 Call Trace:
  dump_stack+0x86/0xc3
  __warn+0xcb/0xf0
  warn_slowpath_null+0x1d/0x20
  arch_add_memory+0xe4/0xf0
  devm_memremap_pages+0x29b/0x4e0

Fixes: 315c562536c4 ("libnvdimm, pfn: add 'align' attribute, default to HPAGE_SIZE")
Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Dan Williams &lt;dan.j.williams@intel.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=bfb34527a32a1a576d9bfb7026d3ab0369a6cd60'>Diffstat</a> (limited to 'drivers/usb/gadget/udc/udc-xilinx.c')</div><table summary='diffstat' class='diffstat'>