106 строки
2.6 KiB
C
106 строки
2.6 KiB
C
/*
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* Copyright (C) International Business Machines Corp., 2000-2004
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/fs.h>
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#include <linux/quotaops.h>
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#include "jfs_incore.h"
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#include "jfs_inode.h"
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#include "jfs_filsys.h"
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#include "jfs_imap.h"
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#include "jfs_dinode.h"
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#include "jfs_debug.h"
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/*
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* NAME: ialloc()
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*
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* FUNCTION: Allocate a new inode
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*
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*/
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struct inode *ialloc(struct inode *parent, umode_t mode)
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{
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struct super_block *sb = parent->i_sb;
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struct inode *inode;
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struct jfs_inode_info *jfs_inode;
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int rc;
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inode = new_inode(sb);
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if (!inode) {
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jfs_warn("ialloc: new_inode returned NULL!");
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return inode;
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}
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jfs_inode = JFS_IP(inode);
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rc = diAlloc(parent, S_ISDIR(mode), inode);
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if (rc) {
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jfs_warn("ialloc: diAlloc returned %d!", rc);
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make_bad_inode(inode);
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iput(inode);
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return NULL;
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}
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inode->i_uid = current->fsuid;
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if (parent->i_mode & S_ISGID) {
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inode->i_gid = parent->i_gid;
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if (S_ISDIR(mode))
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mode |= S_ISGID;
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} else
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inode->i_gid = current->fsgid;
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/*
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* Allocate inode to quota.
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*/
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if (DQUOT_ALLOC_INODE(inode)) {
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DQUOT_DROP(inode);
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inode->i_flags |= S_NOQUOTA;
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inode->i_nlink = 0;
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iput(inode);
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return NULL;
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}
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inode->i_mode = mode;
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if (S_ISDIR(mode))
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jfs_inode->mode2 = IDIRECTORY | mode;
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else
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jfs_inode->mode2 = INLINEEA | ISPARSE | mode;
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inode->i_blksize = sb->s_blocksize;
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inode->i_blocks = 0;
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inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
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jfs_inode->otime = inode->i_ctime.tv_sec;
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inode->i_generation = JFS_SBI(sb)->gengen++;
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jfs_inode->cflag = 0;
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/* Zero remaining fields */
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memset(&jfs_inode->acl, 0, sizeof(dxd_t));
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memset(&jfs_inode->ea, 0, sizeof(dxd_t));
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jfs_inode->next_index = 0;
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jfs_inode->acltype = 0;
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jfs_inode->btorder = 0;
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jfs_inode->btindex = 0;
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jfs_inode->bxflag = 0;
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jfs_inode->blid = 0;
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jfs_inode->atlhead = 0;
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jfs_inode->atltail = 0;
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jfs_inode->xtlid = 0;
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jfs_info("ialloc returns inode = 0x%p\n", inode);
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return inode;
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}
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