diff options
Diffstat (limited to 'fs/jfs/jfs_inode.c')
-rw-r--r-- | fs/jfs/jfs_inode.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c new file mode 100644 index 000000000000..84f2459b2191 --- /dev/null +++ b/fs/jfs/jfs_inode.c @@ -0,0 +1,104 @@ +/* + * 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_filsys.h" +#include "jfs_imap.h" +#include "jfs_dinode.h" +#include "jfs_debug.h" + +/* + * 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 inode; + } + + jfs_inode = JFS_IP(inode); + + rc = diAlloc(parent, S_ISDIR(mode), inode); + if (rc) { + jfs_warn("ialloc: diAlloc returned %d!", rc); + make_bad_inode(inode); + iput(inode); + return NULL; + } + + 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; + + /* + * Allocate inode to quota. + */ + if (DQUOT_ALLOC_INODE(inode)) { + DQUOT_DROP(inode); + inode->i_flags |= S_NOQUOTA; + inode->i_nlink = 0; + iput(inode); + return NULL; + } + + inode->i_mode = mode; + if (S_ISDIR(mode)) + jfs_inode->mode2 = IDIRECTORY | mode; + else + jfs_inode->mode2 = INLINEEA | ISPARSE | mode; + inode->i_blksize = sb->s_blocksize; + 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_info("ialloc returns inode = 0x%p\n", inode); + + return inode; +} |