/*
 * linux/fs/befs/io.c
 *
 * Copyright (C) 2001 Will Dyson <will_dyson@pobox.com
 *
 * Based on portions of file.c and inode.c
 * by Makoto Kato (m_kato@ga2.so-net.ne.jp)
 *
 * Many thanks to Dominic Giampaolo, author of Practical File System
 * Design with the Be File System, for such a helpful book.
 *
 */

#include <linux/buffer_head.h>

#include "befs.h"
#include "io.h"

/*
 * Converts befs notion of disk addr to a disk offset and uses
 * linux kernel function sb_bread() to get the buffer containing
 * the offset.
 */

struct buffer_head *
befs_bread_iaddr(struct super_block *sb, befs_inode_addr iaddr)
{
	struct buffer_head *bh;
	befs_blocknr_t block;
	struct befs_sb_info *befs_sb = BEFS_SB(sb);

	befs_debug(sb, "---> Enter %s "
		   "[%u, %hu, %hu]", __func__, iaddr.allocation_group,
		   iaddr.start, iaddr.len);

	if (iaddr.allocation_group > befs_sb->num_ags) {
		befs_error(sb, "BEFS: Invalid allocation group %u, max is %u",
			   iaddr.allocation_group, befs_sb->num_ags);
		goto error;
	}

	block = iaddr2blockno(sb, &iaddr);

	befs_debug(sb, "%s: offset = %lu", __func__, (unsigned long)block);

	bh = sb_bread(sb, block);

	if (bh == NULL) {
		befs_error(sb, "Failed to read block %lu",
			   (unsigned long)block);
		goto error;
	}

	befs_debug(sb, "<--- %s", __func__);
	return bh;

error:
	befs_debug(sb, "<--- %s ERROR", __func__);
	return NULL;
}
lass='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
<table class='tabs'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/?h=nds-private-remove'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?h=nds-private-remove&amp;id=dfcb7a14866b8c34b2d3a74ae31631e1d4e7f591'>refs</a><a class='active' href='/cgit.cgi/linux/net-next.git/log/net/ethernet?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/net/ethernet?h=nds-private-remove&amp;id=dfcb7a14866b8c34b2d3a74ae31631e1d4e7f591'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/net/ethernet?h=nds-private-remove&amp;id=dfcb7a14866b8c34b2d3a74ae31631e1d4e7f591'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/net/ethernet?h=nds-private-remove&amp;id=dfcb7a14866b8c34b2d3a74ae31631e1d4e7f591'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/net/ethernet'>
<input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='dfcb7a14866b8c34b2d3a74ae31631e1d4e7f591'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=dfcb7a14866b8c34b2d3a74ae31631e1d4e7f591'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/net?h=nds-private-remove&amp;id=dfcb7a14866b8c34b2d3a74ae31631e1d4e7f591'>net</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/ethernet?h=nds-private-remove&amp;id=dfcb7a14866b8c34b2d3a74ae31631e1d4e7f591'>ethernet</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/net/ethernet?h=nds-private-remove&amp;id=dfcb7a14866b8c34b2d3a74ae31631e1d4e7f591&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<tr><td><span title='2017-02-11 02:31:11 -0500'>2017-02-11</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net/ethernet?h=nds-private-remove&amp;id=35eeacf1820a08305c2b0960febfa190f5a6dd63'>Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net</a></td><td>David S. Miller'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>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-22 12:45:47 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-22 12:45:47 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/bluetooth/bnep/Makefile?id=24b86839fab8e8059d2b16e0067dc86a1a0d3514'>24b86839fab8e8059d2b16e0067dc86a1a0d3514</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/bluetooth/bnep/Makefile?id=24b86839fab8e8059d2b16e0067dc86a1a0d3514'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=24b86839fab8e8059d2b16e0067dc86a1a0d3514'>d764e86e2bae3ef57779912ed062be725b1ca431</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/bluetooth/bnep/Makefile?id=24b86839fab8e8059d2b16e0067dc86a1a0d3514'>net/bluetooth/bnep/Makefile</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/bluetooth/bnep/Makefile?id=585457fc8383e373ab923e46cd1f70bbfe46763f'>585457fc8383e373ab923e46cd1f70bbfe46763f</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/bluetooth/bnep/Makefile?id=24b86839fab8e8059d2b16e0067dc86a1a0d3514&amp;id2=585457fc8383e373ab923e46cd1f70bbfe46763f'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/bluetooth/bnep/Makefile?id=0fec9557fd0c5349e3bd1a2141612a60bc20bb71'>0fec9557fd0c5349e3bd1a2141612a60bc20bb71</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/bluetooth/bnep/Makefile?id=24b86839fab8e8059d2b16e0067dc86a1a0d3514&amp;id2=0fec9557fd0c5349e3bd1a2141612a60bc20bb71'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip</div><div class='commit-msg'>Pull smp/hotplug fix from Thomas Gleixner:
 "Remove an unused variable which is a leftover from the notifier
  removal"

* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  cpu/hotplug: Remove unused but set variable in _cpu_down()
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=24b86839fab8e8059d2b16e0067dc86a1a0d3514'>Diffstat</a> (limited to 'net/bluetooth/bnep/Makefile')</div><table summary='diffstat' class='diffstat'>