projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * Copyright (C) International Business Machines Corp., 2000-2004 | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or modify | |
| 5 | * it under the terms of the GNU General Public License as published by | |
| 6 | * the Free Software Foundation; either version 2 of the License, or | |
| 7 | * (at your option) any later version. | |
| 8 | * | |
| 9 | * This program is distributed in the hope that it will be useful, | |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
| 12 | * the GNU General Public License for more details. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU General Public License | |
| 15 | * along with this program; if not, write to the Free Software | |
| 16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 17 | */ | |
| 18 | ||
| 19 | #include <linux/fs.h> | |
| 20 | #include <linux/quotaops.h> | |
| 21 | #include "jfs_incore.h" | |
| 22 | #include "jfs_filsys.h" | |
| 23 | #include "jfs_imap.h" | |
| 24 | #include "jfs_dinode.h" | |
| 25 | #include "jfs_debug.h" | |
| 26 | ||
| 27 | /* | |
| 28 | * NAME: ialloc() | |
| 29 | * | |
| 30 | * FUNCTION: Allocate a new inode | |
| 31 | * | |
| 32 | */ | |
| 33 | struct inode *ialloc(struct inode *parent, umode_t mode) | |
| 34 | { | |
| 35 | struct super_block *sb = parent->i_sb; | |
| 36 | struct inode *inode; | |
| 37 | struct jfs_inode_info *jfs_inode; | |
| 38 | int rc; | |
| 39 | ||
| 40 | inode = new_inode(sb); | |
| 41 | if (!inode) { | |
| 42 | jfs_warn("ialloc: new_inode returned NULL!"); | |
| 43 | return inode; | |
| 44 | } | |
| 45 | ||
| 46 | jfs_inode = JFS_IP(inode); | |
| 47 | ||
| 48 | rc = diAlloc(parent, S_ISDIR(mode), inode); | |
| 49 | if (rc) { | |
| 50 | jfs_warn("ialloc: diAlloc returned %d!", rc); | |
| 51 | make_bad_inode(inode); | |
| 52 | iput(inode); | |
| 53 | return NULL; | |
| 54 | } | |
| 55 | ||
| 56 | inode->i_uid = current->fsuid; | |
| 57 | if (parent->i_mode & S_ISGID) { | |
| 58 | inode->i_gid = parent->i_gid; | |
| 59 | if (S_ISDIR(mode)) | |
| 60 | mode |= S_ISGID; | |
| 61 | } else | |
| 62 | inode->i_gid = current->fsgid; | |
| 63 | ||
| 64 | /* | |
| 65 | * Allocate inode to quota. | |
| 66 | */ | |
| 67 | if (DQUOT_ALLOC_INODE(inode)) { | |
| 68 | DQUOT_DROP(inode); | |
| 69 | inode->i_flags |= S_NOQUOTA; | |
| 70 | inode->i_nlink = 0; | |
| 71 | iput(inode); | |
| 72 | return NULL; | |
| 73 | } | |
| 74 | ||
| 75 | inode->i_mode = mode; | |
| 76 | if (S_ISDIR(mode)) | |
| 77 | jfs_inode->mode2 = IDIRECTORY | mode; | |
| 78 | else | |
| 79 | jfs_inode->mode2 = INLINEEA | ISPARSE | mode; | |
| 80 | inode->i_blksize = sb->s_blocksize; | |
| 81 | inode->i_blocks = 0; | |
| 82 | inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; | |
| 83 | jfs_inode->otime = inode->i_ctime.tv_sec; | |
| 84 | inode->i_generation = JFS_SBI(sb)->gengen++; | |
| 85 | ||
| 86 | jfs_inode->cflag = 0; | |
| 87 | ||
| 88 | /* Zero remaining fields */ | |
| 89 | memset(&jfs_inode->acl, 0, sizeof(dxd_t)); | |
| 90 | memset(&jfs_inode->ea, 0, sizeof(dxd_t)); | |
| 91 | jfs_inode->next_index = 0; | |
| 92 | jfs_inode->acltype = 0; | |
| 93 | jfs_inode->btorder = 0; | |
| 94 | jfs_inode->btindex = 0; | |
| 95 | jfs_inode->bxflag = 0; | |
| 96 | jfs_inode->blid = 0; | |
| 97 | jfs_inode->atlhead = 0; | |
| 98 | jfs_inode->atltail = 0; | |
| 99 | jfs_inode->xtlid = 0; | |
| 100 | ||
| 101 | jfs_info("ialloc returns inode = 0x%p\n", inode); | |
| 102 | ||
| 103 | return inode; | |
| 104 | } |