/*
 * super.c
 *
 * Copyright (C) 2001-2002 Will Dyson <will_dyson@pobox.com>
 *
 * Licensed under the GNU GPL. See the file COPYING for details.
 *
 */

#include <linux/fs.h>
#include <asm/page.h> /* for PAGE_SIZE */

#include "befs.h"
#include "super.h"

/*
 * befs_load_sb -- Read from disk and properly byteswap all the fields
 * of the befs superblock
 */
int
befs_load_sb(struct super_block *sb, befs_super_block *disk_sb)
{
	struct befs_sb_info *befs_sb = BEFS_SB(sb);

	/* Check the byte order of the filesystem */
	if (disk_sb->fs_byte_order == BEFS_BYTEORDER_NATIVE_LE)
		befs_sb->byte_order = BEFS_BYTESEX_LE;
	else if (disk_sb->fs_byte_order == BEFS_BYTEORDER_NATIVE_BE)
		befs_sb->byte_order = BEFS_BYTESEX_BE;

	befs_sb->magic1 = fs32_to_cpu(sb, disk_sb->magic1);
	befs_sb->magic2 = fs32_to_cpu(sb, disk_sb->magic2);
	befs_sb->magic3 = fs32_to_cpu(sb, disk_sb->magic3);
	befs_sb->block_size = fs32_to_cpu(sb, disk_sb->block_size);
	befs_sb->block_shift = fs32_to_cpu(sb, disk_sb->block_shift);
	befs_sb->num_blocks = fs64_to_cpu(sb, disk_sb->num_blocks);
	befs_sb->used_blocks = fs64_to_cpu(sb, disk_sb->used_blocks);
	befs_sb->inode_size = fs32_to_cpu(sb, disk_sb->inode_size);

	befs_sb->blocks_per_ag = fs32_to_cpu(sb, disk_sb->blocks_per_ag);
	befs_sb->ag_shift = fs32_to_cpu(sb, disk_sb->ag_shift);
	befs_sb->num_ags = fs32_to_cpu(sb, disk_sb->num_ags);

	befs_sb->flags = fs32_to_cpu(sb, disk_sb->flags);

	befs_sb->log_blocks = fsrun_to_cpu(sb, disk_sb->log_blocks);
	befs_sb->log_start = fs64_to_cpu(sb, disk_sb->log_start);
	befs_sb->log_end = fs64_to_cpu(sb, disk_sb->log_end);

	befs_sb->root_dir = fsrun_to_cpu(sb, disk_sb->root_dir);
	befs_sb->indices = fsrun_to_cpu(sb, disk_sb->indices);
	befs_sb->nls = NULL;

	return BEFS_OK;
}

int
befs_check_sb(struct super_block *sb)
{
	struct befs_sb_info *befs_sb = BEFS_SB(sb);

	/* Check magic headers of super block */
	if ((befs_sb->magic1 != BEFS_SUPER_MAGIC1)
	    || (befs_sb->magic2 != BEFS_SUPER_MAGIC2)
	    || (befs_sb->magic3 != BEFS_SUPER_MAGIC3)) {
		befs_error(sb, "invalid magic header");
		return BEFS_ERR;
	}

	/*
	 * Check blocksize of BEFS.
	 *
	 * Blocksize of BEFS is 1024, 2048, 4096 or 8192.
	 */

	if ((befs_sb->block_size != 1024)
	    && (befs_sb->block_size != 2048)
	    && (befs_sb->block_size != 4096)
	    && (befs_sb->block_size != 8192)) {
		befs_error(sb, "invalid blocksize: %u", befs_sb->block_size);
		return BEFS_ERR;
	}

	if (befs_sb->block_size > PAGE_SIZE) {
		befs_error(sb, "blocksize(%u) cannot be larger "
			   "than system pagesize(%lu)", befs_sb->block_size,
			   PAGE_SIZE);
		return BEFS_ERR;
	}

	/*
	 * block_shift and block_size encode the same information
	 * in different ways as a consistency check.
	 */

	if ((1 << befs_sb->block_shift) != befs_sb->block_size) {
		befs_error(sb, "block_shift disagrees with block_size. "
			   "Corruption likely.");
		return BEFS_ERR;
	}


	/* ag_shift also encodes the same information as blocks_per_ag in a
	 * different way, non-fatal consistency check
	 */
	if ((1 << befs_sb->ag_shift) != befs_sb->blocks_per_ag)
		befs_error(sb, "ag_shift disagrees with blocks_per_ag.");

	if (befs_sb->log_start != befs_sb->log_end ||
	    befs_sb->flags == BEFS_DIRTY) {
		befs_error(sb, "Filesystem not clean! There are blocks in the "
			   "journal. You must boot into BeOS and mount this "
			   "volume to make it clean.");
		return BEFS_ERR;
	}

	return BEFS_OK;
}
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>Sergei Shtylyov &lt;sergei.shtylyov@cogentembedded.com&gt;</td><td class='right'>2017-01-29 15:07:34 +0300</td></tr>
<tr><th>committer</th><td>David S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2017-01-30 22:05:43 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/llc/llc_s_ac.c?id=1a0bee6c1e788218fd1d141db320db970aace7f0'>1a0bee6c1e788218fd1d141db320db970aace7f0</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/llc/llc_s_ac.c?id=1a0bee6c1e788218fd1d141db320db970aace7f0'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=1a0bee6c1e788218fd1d141db320db970aace7f0'>46c4116bc8ef4a7df718516a648597d9e21c15f1</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/llc/llc_s_ac.c?id=1a0bee6c1e788218fd1d141db320db970aace7f0'>net/llc/llc_s_ac.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/llc/llc_s_ac.c?id=63c190429020a9701b42887ac22c28f287f1762f'>63c190429020a9701b42887ac22c28f287f1762f</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/llc/llc_s_ac.c?id=1a0bee6c1e788218fd1d141db320db970aace7f0&amp;id2=63c190429020a9701b42887ac22c28f287f1762f'>diff</a>)</td></tr></table>
<div class='commit-subject'>sh_eth: rename EESIPR bits</div><div class='commit-msg'>Since the  commit  b0ca2a21f769 ("sh_eth: Add support of SH7763 to sh_eth")
the *enum* declaring the EESIPR bits (interrupt mask) went out of sync with
the *enum* declaring the EESR bits (interrupt status) WRT  bit naming  and
formatting. I'd like to restore the consistency by using EESIPR as the bit
name prefix, renaming the *enum* to EESIPR_BIT, and (finally) renaming the
bits according to the available  Renesas SH77{34|63} manuals; additionally,
reconstruct  couple names using  the EESR bit declaration above...

Signed-off-by: Sergei Shtylyov &lt;sergei.shtylyov@cogentembedded.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=1a0bee6c1e788218fd1d141db320db970aace7f0'>Diffstat</a> (limited to 'net/llc/llc_s_ac.c')</div><table summary='diffstat' class='diffstat'>