/*
 * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
 * Copyright (C) 2004-2008 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 __LOPS_DOT_H__
#define __LOPS_DOT_H__

#include <linux/list.h>
#include "incore.h"

#define BUF_OFFSET \
	((sizeof(struct gfs2_log_descriptor) + sizeof(__be64) - 1) & \
	 ~(sizeof(__be64) - 1))
#define DATABUF_OFFSET \
	((sizeof(struct gfs2_log_descriptor) + (2 * sizeof(__be64) - 1)) & \
	 ~(2 * sizeof(__be64) - 1))

extern const struct gfs2_log_operations gfs2_glock_lops;
extern const struct gfs2_log_operations gfs2_buf_lops;
extern const struct gfs2_log_operations gfs2_revoke_lops;
extern const struct gfs2_log_operations gfs2_databuf_lops;

extern const struct gfs2_log_operations *gfs2_log_ops[];
extern void gfs2_log_write_page(struct gfs2_sbd *sdp, struct page *page);
extern void gfs2_log_flush_bio(struct gfs2_sbd *sdp, int op, int op_flags);
extern void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh);

static inline unsigned int buf_limit(struct gfs2_sbd *sdp)
{
	unsigned int limit;

	limit = (sdp->sd_sb.sb_bsize - BUF_OFFSET) / sizeof(__be64);
	return limit;
}

static inline unsigned int databuf_limit(struct gfs2_sbd *sdp)
{
	unsigned int limit;

	limit = (sdp->sd_sb.sb_bsize - DATABUF_OFFSET) / (2 * sizeof(__be64));
	return limit;
}

static inline void lops_before_commit(struct gfs2_sbd *sdp,
				      struct gfs2_trans *tr)
{
	int x;
	for (x = 0; gfs2_log_ops[x]; x++)
		if (gfs2_log_ops[x]->lo_before_commit)
			gfs2_log_ops[x]->lo_before_commit(sdp, tr);
}

static inline void lops_after_commit(struct gfs2_sbd *sdp,
				     struct gfs2_trans *tr)
{
	int x;
	for (x = 0; gfs2_log_ops[x]; x++)
		if (gfs2_log_ops[x]->lo_after_commit)
			gfs2_log_ops[x]->lo_after_commit(sdp, tr);
}

static inline void lops_before_scan(struct gfs2_jdesc *jd,
				    struct gfs2_log_header_host *head,
				    unsigned int pass)
{
	int x;
	for (x = 0; gfs2_log_ops[x]; x++)
		if (gfs2_log_ops[x]->lo_before_scan)
			gfs2_log_ops[x]->lo_before_scan(jd, head, pass);
}

static inline int lops_scan_elements(struct gfs2_jdesc *jd, unsigned int start,
				     struct gfs2_log_descriptor *ld,
				     __be64 *ptr,
				     unsigned int pass)
{
	int x, error;
	for (x = 0; gfs2_log_ops[x]; x++)
		if (gfs2_log_ops[x]->lo_scan_elements) {
			error = gfs2_log_ops[x]->lo_scan_elements(jd, start,
								  ld, ptr, pass);
			if (error)
				return error;
		}

	return 0;
}

static inline void lops_after_scan(struct gfs2_jdesc *jd, int error,
				   unsigned int pass)
{
	int x;
	for (x = 0; gfs2_log_ops[x]; x++)
		if (gfs2_log_ops[x]->lo_before_scan)
			gfs2_log_ops[x]->lo_after_scan(jd, error, pass);
}

#endif /* __LOPS_DOT_H__ */

c3b9b25'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?id=0becc0ae5b42828785b589f686725ff5bc3b9b25'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/storage?id=0becc0ae5b42828785b589f686725ff5bc3b9b25'>storage</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/storage/isd200.c?id=0becc0ae5b42828785b589f686725ff5bc3b9b25'>isd200.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='0becc0ae5b42828785b589f686725ff5bc3b9b25'/><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>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2017-01-31 09:37:34 +0100</td></tr>
<tr><th>committer</th><td>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2017-01-31 21:47:58 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/storage/isd200.c?id=0becc0ae5b42828785b589f686725ff5bc3b9b25'>0becc0ae5b42828785b589f686725ff5bc3b9b25</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/storage/isd200.c?id=0becc0ae5b42828785b589f686725ff5bc3b9b25'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=0becc0ae5b42828785b589f686725ff5bc3b9b25'>be6d0e1f37c38ed0a7dd5da2d4b1e93f0fb43101</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/storage/isd200.c?id=0becc0ae5b42828785b589f686725ff5bc3b9b25'>drivers/usb/storage/isd200.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/storage/isd200.c?id=24c2503255d35c269b67162c397a1a1c1e02f6ce'>24c2503255d35c269b67162c397a1a1c1e02f6ce</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/storage/isd200.c?id=0becc0ae5b42828785b589f686725ff5bc3b9b25&amp;id2=24c2503255d35c269b67162c397a1a1c1e02f6ce'>diff</a>)</td></tr></table>
<div class='commit-subject'>x86/mce: Make timer handling more robust</div><div class='commit-msg'>Erik reported that on a preproduction hardware a CMCI storm triggers the
BUG_ON in add_timer_on(). The reason is that the per CPU MCE timer is
started by the CMCI logic before the MCE CPU hotplug callback starts the
timer with add_timer_on(). So the timer is already queued which triggers
the BUG.

Using add_timer_on() is pretty pointless in this code because the timer is
strictlty per CPU, initialized as pinned and all operations which arm the
timer happen on the CPU to which the timer belongs.

Simplify the whole machinery by using mod_timer() instead of add_timer_on()
which avoids the problem because mod_timer() can handle already queued
timers. Use __start_timer() everywhere so the earliest armed expiry time is
preserved.

Reported-by: Erik Veijola &lt;erik.veijola@intel.com&gt;
Tested-by: Borislav Petkov &lt;bp@alien8.de&gt;
Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Reviewed-by: Borislav Petkov &lt;bp@alien8.de&gt;
Cc: Tony Luck &lt;tony.luck@intel.com&gt;
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos
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=0becc0ae5b42828785b589f686725ff5bc3b9b25'>Diffstat</a> (limited to 'drivers/usb/storage/isd200.c')</div><table summary='diffstat' class='diffstat'>