patch-2.4.20 linux-2.4.20/fs/jfs/jfs_inode.c
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- Lines: 122
- Date:
Thu Nov 28 15:53:15 2002
- Orig file:
linux-2.4.19/fs/jfs/jfs_inode.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -urN linux-2.4.19/fs/jfs/jfs_inode.c linux-2.4.20/fs/jfs/jfs_inode.c
@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) International Business Machines Corp., 2000-2002
+ *
+ * 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 "jfs_incore.h"
+#include "jfs_filsys.h"
+#include "jfs_imap.h"
+#include "jfs_dinode.h"
+#include "jfs_debug.h"
+
+kmem_cache_t *jfs_inode_cachep;
+
+/*
+ * 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) {
+ jERROR(1, ("ialloc: new_inode returned NULL!\n"));
+ return inode;
+ }
+
+ rc = alloc_jfs_inode(inode);
+ if (rc) {
+ make_bad_inode(inode);
+ iput(inode);
+ return NULL;
+ }
+ jfs_inode = JFS_IP(inode);
+
+ rc = diAlloc(parent, S_ISDIR(mode), inode);
+ if (rc) {
+ jERROR(1, ("ialloc: diAlloc returned %d!\n", rc));
+ free_jfs_inode(inode);
+ 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;
+
+ 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;
+ inode->i_generation = JFS_SBI(sb)->gengen++;
+
+ jfs_inode->cflag = 0;
+ set_cflag(COMMIT_New, inode);
+
+ /* 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;
+
+ jFYI(1, ("ialloc returns inode = 0x%p\n", inode));
+
+ return inode;
+}
+
+/*
+ * NAME: alloc_jfs_inode()
+ *
+ * FUNCTION: Allocate jfs portion of in-memory inode
+ *
+ */
+int alloc_jfs_inode(struct inode *inode)
+{
+ struct jfs_inode_info *jfs_inode;
+
+ jfs_inode = kmem_cache_alloc(jfs_inode_cachep, GFP_NOFS);
+ inode->u.generic_ip = jfs_inode;
+ if (!jfs_inode)
+ return -ENOSPC;
+ jfs_inode->inode = inode;
+
+ return 0;
+}
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