/*
 * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
 * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
 *
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU General Public License version 2.
 */

#ifndef __SUPER_DOT_H__
#define __SUPER_DOT_H__

#include <linux/fs.h>
#include <linux/dcache.h>
#include "incore.h"

extern void gfs2_lm_unmount(struct gfs2_sbd *sdp);

static inline unsigned int gfs2_jindex_size(struct gfs2_sbd *sdp)
{
	unsigned int x;
	spin_lock(&sdp->sd_jindex_spin);
	x = sdp->sd_journals;
	spin_unlock(&sdp->sd_jindex_spin);
	return x;
}

extern void gfs2_jindex_free(struct gfs2_sbd *sdp);

extern int gfs2_mount_args(struct gfs2_args *args, char *data);

extern struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid);
extern int gfs2_jdesc_check(struct gfs2_jdesc *jd);

extern int gfs2_lookup_in_master_dir(struct gfs2_sbd *sdp, char *filename,
				     struct gfs2_inode **ipp);

extern int gfs2_make_fs_rw(struct gfs2_sbd *sdp);
extern void gfs2_online_uevent(struct gfs2_sbd *sdp);
extern int gfs2_statfs_init(struct gfs2_sbd *sdp);
extern void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free,
			       s64 dinodes);
extern void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc,
				  const void *buf);
extern void update_statfs(struct gfs2_sbd *sdp, struct buffer_head *m_bh,
			  struct buffer_head *l_bh);
extern int gfs2_statfs_sync(struct super_block *sb, int type);
extern void gfs2_freeze_func(struct work_struct *work);

extern struct file_system_type gfs2_fs_type;
extern struct file_system_type gfs2meta_fs_type;
extern const struct export_operations gfs2_export_ops;
extern const struct super_operations gfs2_super_ops;
extern const struct dentry_operations gfs2_dops;
extern const struct xattr_handler *gfs2_xattr_handlers[];

#endif /* __SUPER_DOT_H__ */

nterface/io?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/xen/interface/io?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/xen/interface/io'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/xen?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>xen</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/xen/interface?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>interface</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/xen/interface/io?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>io</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='08d85f3ea99f1eeafc4e8507936190e86a16ee8c'/><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>Marc Zyngier &lt;marc.zyngier@arm.com&gt;</td><td class='right'>2017-01-17 16:00:48 +0000</td></tr>
<tr><th>committer</th><td>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2017-01-30 15:18:56 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/xen/interface/io?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>08d85f3ea99f1eeafc4e8507936190e86a16ee8c</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/xen/interface/io?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>410bb1acd0cd7dcfaad37ae7b63ff243b7fa4bee</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/xen/interface/io?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>include/xen/interface/io</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/xen/interface/io?id=566cf877a1fcb6d6dc0126b076aad062054c2637'>566cf877a1fcb6d6dc0126b076aad062054c2637</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/xen/interface/io?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c&amp;id2=566cf877a1fcb6d6dc0126b076aad062054c2637'>diff</a>)</td></tr></table>
<div class='commit-subject'>irqdomain: Avoid activating interrupts more than once</div><div class='commit-msg'>Since commit f3b0946d629c ("genirq/msi: Make sure PCI MSIs are
activated early"), we can end-up activating a PCI/MSI twice (once
at allocation time, and once at startup time).

This is normally of no consequences, except that there is some
HW out there that may misbehave if activate is used more than once
(the GICv3 ITS, for example, uses the activate callback
to issue the MAPVI command, and the architecture spec says that
"If there is an existing mapping for the EventID-DeviceID
combination, behavior is UNPREDICTABLE").

While this could be worked around in each individual driver, it may
make more sense to tackle the issue at the core level. In order to
avoid getting in that situation, let's have a per-interrupt flag
to remember if we have already activated that interrupt or not.

Fixes: f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early")
Reported-and-tested-by: Andre Przywara &lt;andre.przywara@arm.com&gt;
Signed-off-by: Marc Zyngier &lt;marc.zyngier@arm.com&gt;
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1484668848-24361-1-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;

</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>Diffstat</a> (limited to 'include/xen/interface/io')</div><table summary='diffstat' class='diffstat'>