Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/fs/jfs/file.c b/fs/jfs/file.c
new file mode 100644
index 0000000..a87b06f
--- /dev/null
+++ b/fs/jfs/file.c
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) International Business Machines Corp., 2000-2002
+ * Portions Copyright (c) Christoph Hellwig, 2001-2002
+ *
+ * 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_dmap.h"
+#include "jfs_txnmgr.h"
+#include "jfs_xattr.h"
+#include "jfs_acl.h"
+#include "jfs_debug.h"
+
+
+extern int jfs_commit_inode(struct inode *, int);
+extern void jfs_truncate(struct inode *);
+
+int jfs_fsync(struct file *file, struct dentry *dentry, int datasync)
+{
+ struct inode *inode = dentry->d_inode;
+ int rc = 0;
+
+ if (!(inode->i_state & I_DIRTY) ||
+ (datasync && !(inode->i_state & I_DIRTY_DATASYNC))) {
+ /* Make sure committed changes hit the disk */
+ jfs_flush_journal(JFS_SBI(inode->i_sb)->log, 1);
+ return rc;
+ }
+
+ rc |= jfs_commit_inode(inode, 1);
+
+ return rc ? -EIO : 0;
+}
+
+static int jfs_open(struct inode *inode, struct file *file)
+{
+ int rc;
+
+ if ((rc = generic_file_open(inode, file)))
+ return rc;
+
+ /*
+ * We attempt to allow only one "active" file open per aggregate
+ * group. Otherwise, appending to files in parallel can cause
+ * fragmentation within the files.
+ *
+ * If the file is empty, it was probably just created and going
+ * to be written to. If it has a size, we'll hold off until the
+ * file is actually grown.
+ */
+ if (S_ISREG(inode->i_mode) && file->f_mode & FMODE_WRITE &&
+ (inode->i_size == 0)) {
+ struct jfs_inode_info *ji = JFS_IP(inode);
+ spin_lock_irq(&ji->ag_lock);
+ if (ji->active_ag == -1) {
+ ji->active_ag = ji->agno;
+ atomic_inc(
+ &JFS_SBI(inode->i_sb)->bmap->db_active[ji->agno]);
+ }
+ spin_unlock_irq(&ji->ag_lock);
+ }
+
+ return 0;
+}
+static int jfs_release(struct inode *inode, struct file *file)
+{
+ struct jfs_inode_info *ji = JFS_IP(inode);
+
+ spin_lock_irq(&ji->ag_lock);
+ if (ji->active_ag != -1) {
+ struct bmap *bmap = JFS_SBI(inode->i_sb)->bmap;
+ atomic_dec(&bmap->db_active[ji->active_ag]);
+ ji->active_ag = -1;
+ }
+ spin_unlock_irq(&ji->ag_lock);
+
+ return 0;
+}
+
+struct inode_operations jfs_file_inode_operations = {
+ .truncate = jfs_truncate,
+ .setxattr = jfs_setxattr,
+ .getxattr = jfs_getxattr,
+ .listxattr = jfs_listxattr,
+ .removexattr = jfs_removexattr,
+#ifdef CONFIG_JFS_POSIX_ACL
+ .setattr = jfs_setattr,
+ .permission = jfs_permission,
+#endif
+};
+
+struct file_operations jfs_file_operations = {
+ .open = jfs_open,
+ .llseek = generic_file_llseek,
+ .write = generic_file_write,
+ .read = generic_file_read,
+ .aio_read = generic_file_aio_read,
+ .aio_write = generic_file_aio_write,
+ .mmap = generic_file_mmap,
+ .readv = generic_file_readv,
+ .writev = generic_file_writev,
+ .sendfile = generic_file_sendfile,
+ .fsync = jfs_fsync,
+ .release = jfs_release,
+};