/*
 * 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;
}
ite-cleanup'>emaclite-cleanup</option>
<option value='master' selected='selected'>master</option>
<option value='nds-private-remove'>nds-private-remove</option>
<option value='packet-loop-back'>packet-loop-back</option>
<option value='packet-rx-pump-back'>packet-rx-pump-back</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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<a href='/cgit.cgi/linux/net-next.git/'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?id=d0d7b10b05945f40fefd4e60f457c61aefa3e9a9'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/drivers/usb/gadget/usbstring.c'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/gadget/usbstring.c?id=d0d7b10b05945f40fefd4e60f457c61aefa3e9a9'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/gadget/usbstring.c?id=d0d7b10b05945f40fefd4e60f457c61aefa3e9a9'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/gadget/usbstring.c?id=d0d7b10b05945f40fefd4e60f457c61aefa3e9a9'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/drivers/usb/gadget/usbstring.c'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=d0d7b10b05945f40fefd4e60f457c61aefa3e9a9'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers?id=d0d7b10b05945f40fefd4e60f457c61aefa3e9a9'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?id=d0d7b10b05945f40fefd4e60f457c61aefa3e9a9'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/gadget?id=d0d7b10b05945f40fefd4e60f457c61aefa3e9a9'>gadget</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/gadget/usbstring.c?id=d0d7b10b05945f40fefd4e60f457c61aefa3e9a9'>usbstring.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='d0d7b10b05945f40fefd4e60f457c61aefa3e9a9'/><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>Parav Pandit &lt;parav@mellanox.com&gt;</td><td class='right'>2017-02-04 11:00:49 -0600</td></tr>
<tr><th>committer</th><td>David S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2017-02-06 16:33:29 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/gadget/usbstring.c?id=d0d7b10b05945f40fefd4e60f457c61aefa3e9a9'>d0d7b10b05945f40fefd4e60f457c61aefa3e9a9</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/gadget/usbstring.c?id=d0d7b10b05945f40fefd4e60f457c61aefa3e9a9'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=d0d7b10b05945f40fefd4e60f457c61aefa3e9a9'>1904a8455fc02954af05242261ee36feb1e45d1d</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/gadget/usbstring.c?id=d0d7b10b05945f40fefd4e60f457c61aefa3e9a9'>drivers/usb/gadget/usbstring.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/usbstring.c?id=73cfb2a2e49e166c569360ee60fe023b3efe3cf6'>73cfb2a2e49e166c569360ee60fe023b3efe3cf6</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/gadget/usbstring.c?id=d0d7b10b05945f40fefd4e60f457c61aefa3e9a9&amp;id2=73cfb2a2e49e166c569360ee60fe023b3efe3cf6'>diff</a>)</td></tr></table>
<div class='commit-subject'>net-next: treewide use is_vlan_dev() helper function.</div><div class='commit-msg'>This patch makes use of is_vlan_dev() function instead of flag
comparison which is exactly done by is_vlan_dev() helper function.

Signed-off-by: Parav Pandit &lt;parav@mellanox.com&gt;
Reviewed-by: Daniel Jurgens &lt;danielj@mellanox.com&gt;
Acked-by: Stephen Hemminger &lt;stephen@networkplumber.org&gt;
Acked-by: Jon Maxwell &lt;jmaxwell37@gmail.com&gt;
Acked-by: Johannes Thumshirn &lt;jth@kernel.org&gt;
Acked-by: Haiyang Zhang &lt;haiyangz@microsoft.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=d0d7b10b05945f40fefd4e60f457c61aefa3e9a9'>Diffstat</a> (limited to 'drivers/usb/gadget/usbstring.c')</div><table summary='diffstat' class='diffstat'>