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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-10-27 18:52:04 -0400
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-11-03 22:26:41 -0500
commitb8969d1a506cdb8ed1e4ae474e931dfcba277da1 (patch)
treed9ebca5ec7550eed801b08170342c08a097f0d99 /tools/perf/scripts/python/failed-syscalls-by-pid.py
parentedae018d95a00a9629de2d78b68d76f662cf89da (diff)
rcutorture: Fix rcu_torture_cbflood() memory leak
Commit 38706bc5a29a (rcutorture: Add callback-flood test) vmalloc()ed a bunch of RCU callbacks, but failed to free them. This commit fixes that oversight. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Pranith Kumar <bobby.prani@gmail.com>
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generated by cgit v1.2.2 (git 2.25.0) at 2026-04-16 01:29:25 -0400
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/* -*- mode: c; c-basic-offset: 8 -*- */

/*
 * MCA bus support functions for legacy (2.4) API.
 *
 * Legacy API means the API that operates in terms of MCA slot number
 *
 * (C) 2002 James Bottomley <James.Bottomley@HansenPartnership.com>
 *
**-----------------------------------------------------------------------------
**  
**  This program is free software; you can redistribute it and/or modify
**  it under the terms of the GNU General Public License as published by
**  the Free Software Foundation; either version 2 of the License, or
**  (at your option) any later version.
**
**  This program 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 General Public License for more details.
**
**  You should have received a copy of the GNU General Public License
**  along with this program; if not, write to the Free Software
**  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
**
**-----------------------------------------------------------------------------
 */

#include <linux/module.h>
#include <linux/device.h>
#include <linux/mca-legacy.h>
#include <asm/io.h>

/* NOTE: This structure is stack allocated */
struct mca_find_adapter_info {
	int			id;
	int			slot;
	struct mca_device	*mca_dev;
};

/* The purpose of this iterator is to loop over all the devices and
 * find the one with the smallest slot number that's just greater than
 * or equal to the required slot with a matching id */
static int mca_find_adapter_callback(struct device *dev, void *data)
{
	struct mca_find_adapter_info *info = data;
	struct mca_device *mca_dev = to_mca_device(dev);

	if(mca_dev->pos_id != info->id)
		return 0;

	if(mca_dev->slot < info->slot)
		return 0;

	if(!info->mca_dev || info->mca_dev->slot >= mca_dev->slot)
		info->mca_dev = mca_dev;

	return 0;
}

/**
 *	mca_find_adapter - scan for adapters
 *	@id:	MCA identification to search for
 *	@start:	starting slot
 *
 *	Search the MCA configuration for adapters matching the 16bit
 *	ID given. The first time it should be called with start as zero
 *	and then further calls made passing the return value of the
 *	previous call until %MCA_NOTFOUND is returned.
 *
 *	Disabled adapters are not reported.
 */

int mca_find_adapter(int id, int start)
{
	struct mca_find_adapter_info info;

	if(id == 0xffff)
		return MCA_NOTFOUND;

	info.slot = start;
	info.id = id;
	info.mca_dev = NULL;

	for(;;) {
		bus_for_each_dev(&mca_bus_type, NULL, &info, mca_find_adapter_callback);

		if(info.mca_dev == NULL)
			return MCA_NOTFOUND;