/*
 * ialloc.c
 *
 * PURPOSE
 *	Inode allocation handling routines for the OSTA-UDF(tm) filesystem.
 *
 * COPYRIGHT
 *	This file is distributed under the terms of the GNU General Public
 *	License (GPL). Copies of the GPL can be obtained from:
 *		ftp://prep.ai.mit.edu/pub/gnu/GPL
 *	Each contributing author retains all rights to their own work.
 *
 *  (C) 1998-2001 Ben Fennema
 *
 * HISTORY
 *
 *  02/24/99 blf  Created.
 *
 */

#include "udfdecl.h"
#include <linux/fs.h>
#include <linux/sched.h>
#include <linux/slab.h>

#include "udf_i.h"
#include "udf_sb.h"

void udf_free_inode(struct inode *inode)
{
	struct super_block *sb = inode->i_sb;
	struct udf_sb_info *sbi = UDF_SB(sb);
	struct logicalVolIntegrityDescImpUse *lvidiu = udf_sb_lvidiu(sb);

	if (lvidiu) {
		mutex_lock(&sbi->s_alloc_mutex);
		if (S_ISDIR(inode->i_mode))
			le32_add_cpu(&lvidiu->numDirs, -1);
		else
			le32_add_cpu(&lvidiu->numFiles, -1);
		udf_updated_lvid(sb);
		mutex_unlock(&sbi->s_alloc_mutex);
	}

	udf_free_blocks(sb, NULL, &UDF_I(inode)->i_location, 0, 1);
}

struct inode *udf_new_inode(struct inode *dir, umode_t mode)
{
	struct super_block *sb = dir->i_sb;
	struct udf_sb_info *sbi = UDF_SB(sb);
	struct inode *inode;
	int block;
	uint32_t start = UDF_I(dir)->i_location.logicalBlockNum;
	struct udf_inode_info *iinfo;
	struct udf_inode_info *dinfo = UDF_I(dir);
	struct logicalVolIntegrityDescImpUse *lvidiu;
	int err;

	inode = new_inode(sb);

	if (!inode)
		return ERR_PTR(-ENOMEM);

	iinfo = UDF_I(inode);
	if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_EXTENDED_FE)) {
		iinfo->i_efe = 1;
		if (UDF_VERS_USE_EXTENDED_FE > sbi->s_udfrev)
			sbi->s_udfrev = UDF_VERS_USE_EXTENDED_FE;
		iinfo->i_ext.i_data = kzalloc(inode->i_sb->s_blocksize -
					    sizeof(struct extendedFileEntry),
					    GFP_KERNEL);
	} else {
		iinfo->i_efe = 0;
		iinfo->i_ext.i_data = kzalloc(inode->i_sb->s_blocksize -
					    sizeof(struct fileEntry),
					    GFP_KERNEL);
	}
	if (!iinfo->i_ext.i_data) {
		iput(inode);
		return ERR_PTR(-ENOMEM);
	}

	err = -ENOSPC;
	block = udf_new_block(dir->i_sb, NULL,
			      dinfo->i_location.partitionReferenceNum,
			      start, &err);
	if (err) {
		iput(inode);
		return ERR_PTR(err);
	}

	lvidiu = udf_sb_lvidiu(sb);
	if (lvidiu) {
		iinfo->i_unique = lvid_get_unique_id(sb);
		inode->i_generation = iinfo->i_unique;
		mutex_lock(&sbi->s_alloc_mutex);
		if (S_ISDIR(mode))
			le32_add_cpu(&lvidiu->numDirs, 1);
		else
			le32_add_cpu(&lvidiu->numFiles, 1);
		udf_updated_lvid(sb);
		mutex_unlock(&sbi->s_alloc_mutex);
	}

	inode_init_owner(inode, dir, mode);

	iinfo->i_location.logicalBlockNum = block;
	iinfo->i_location.partitionReferenceNum =
				dinfo->i_location.partitionReferenceNum;
	inode->i_ino = udf_get_lb_pblock(sb, &iinfo->i_location, 0);
	inode->i_blocks = 0;
	iinfo->i_lenEAttr = 0;
	iinfo->i_lenAlloc = 0;
	iinfo->i_use = 0;
	iinfo->i_checkpoint = 1;
	if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_AD_IN_ICB))
		iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;
	else if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
		iinfo->i_alloc_type = ICBTAG_FLAG_AD_SHORT;
	else
		iinfo->i_alloc_type = ICBTAG_FLAG_AD_LONG;
	inode->i_mtime = inode->i_atime = inode->i_ctime =
		iinfo->i_crtime = current_time(inode);
	if (unlikely(insert_inode_locked(inode) < 0)) {
		make_bad_inode(inode);
		iput(inode);
		return ERR_PTR(-EIO);
	}
	mark_inode_dirty(inode);

	return inode;
}
883612a2b2'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/storage?id=83b5d1e3d3013dbf90645a5d07179d018c8243fa&amp;id2=d56a5ca366e785f463b4782f65daac883612a2b2'>storage</a>/<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/storage/ene_ub6250.c?id=83b5d1e3d3013dbf90645a5d07179d018c8243fa&amp;id2=d56a5ca366e785f463b4782f65daac883612a2b2'>ene_ub6250.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='83b5d1e3d3013dbf90645a5d07179d018c8243fa'/><input type='hidden' name='id2' value='d56a5ca366e785f463b4782f65daac883612a2b2'/><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><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=83b5d1e3d3013dbf90645a5d07179d018c8243fa&amp;id2=d56a5ca366e785f463b4782f65daac883612a2b2'>Diffstat</a> (limited to 'drivers/usb/storage/ene_ub6250.c')</div><table summary='diffstat' class='diffstat'>