/*
 * QNX4 file system, Linux implementation.
 *
 * Version : 0.2.1
 *
 * Using parts of the xiafs filesystem.
 *
 * History :
 *
 * 28-05-1998 by Richard Frowijn : first release.
 * 20-06-1998 by Frank Denis : basic optimisations.
 * 25-06-1998 by Frank Denis : qnx4_is_free, qnx4_set_bitmap, qnx4_bmap .
 * 28-06-1998 by Frank Denis : qnx4_free_inode (to be fixed) .
 */

#include <linux/buffer_head.h>
#include <linux/bitops.h>
#include "qnx4.h"

unsigned long qnx4_count_free_blocks(struct super_block *sb)
{
	int start = le32_to_cpu(qnx4_sb(sb)->BitMap->di_first_xtnt.xtnt_blk) - 1;
	int total = 0;
	int total_free = 0;
	int offset = 0;
	int size = le32_to_cpu(qnx4_sb(sb)->BitMap->di_size);
	struct buffer_head *bh;

	while (total < size) {
		int bytes = min(size - total, QNX4_BLOCK_SIZE);

		if ((bh = sb_bread(sb, start + offset)) == NULL) {
			printk(KERN_ERR "qnx4: I/O error in counting free blocks\n");
			break;
		}
		total_free += bytes * BITS_PER_BYTE -
				memweight(bh->b_data, bytes);
		brelse(bh);
		total += bytes;
		offset++;
	}

	return total_free;
}
lite-cleanup'>emaclite-cleanup</option>
<option value='master' selected='selected'>master</option>
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<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=bddb2afcb6c52a545f18fb9bcd4829828ebf4a3a'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=bddb2afcb6c52a545f18fb9bcd4829828ebf4a3a'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/trace?id=bddb2afcb6c52a545f18fb9bcd4829828ebf4a3a'>trace</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/trace/trace_events.h?id=bddb2afcb6c52a545f18fb9bcd4829828ebf4a3a'>trace_events.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='bddb2afcb6c52a545f18fb9bcd4829828ebf4a3a'/><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>Johannes Berg &lt;johannes.berg@intel.com&gt;</td><td class='right'>2017-02-07 10:40:50 +0100</td></tr>
<tr><th>committer</th><td>Johannes Berg &lt;johannes.berg@intel.com&gt;</td><td class='right'>2017-02-07 10:40:50 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/trace/trace_events.h?id=bddb2afcb6c52a545f18fb9bcd4829828ebf4a3a'>bddb2afcb6c52a545f18fb9bcd4829828ebf4a3a</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/trace/trace_events.h?id=bddb2afcb6c52a545f18fb9bcd4829828ebf4a3a'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=bddb2afcb6c52a545f18fb9bcd4829828ebf4a3a'>0021fe481f8acf3694d92d72f3dd1b2a71a20ca3</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/trace/trace_events.h?id=bddb2afcb6c52a545f18fb9bcd4829828ebf4a3a'>include/trace/trace_events.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/trace/trace_events.h?id=228c8c6b1f4376788e9d5ab00d50b10228eb40d3'>228c8c6b1f4376788e9d5ab00d50b10228eb40d3</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/trace/trace_events.h?id=bddb2afcb6c52a545f18fb9bcd4829828ebf4a3a&amp;id2=228c8c6b1f4376788e9d5ab00d50b10228eb40d3'>diff</a>)</td></tr></table>
<div class='commit-subject'>mac80211: add back lost debugfs files</div><div class='commit-msg'>Somehow these files were never present or lost, but the code
is there and they seem somewhat useful, so add them back.

Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=bddb2afcb6c52a545f18fb9bcd4829828ebf4a3a'>Diffstat</a> (limited to 'include/trace/trace_events.h')</div><table summary='diffstat' class='diffstat'>