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