Linux-2.6.12-rc2v2.6.12-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!

1 files changed, 119 insertions, 0 deletions

diff --git a/fs/jfs/file.c b/fs/jfs/file.c
new file mode 100644
index 000000000000..a87b06fa8ff8
--- /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,
+};