/*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
}
#endif /* HAVE_VMOP_MPROTECT */
+#ifdef HAVE_FOP_OPEN_EXEC
+/* If the user is attempting to execute a file that is offline then
+ * we have to trigger a DMAPI READ event before the file is marked as busy
+ * otherwise the invisible I/O will not be able to write to the file to bring
+ * it back online.
+ */
+STATIC int
+linvfs_open_exec(
+ struct inode *inode)
+{
+ vnode_t *vp = LINVFS_GET_VP(inode);
+ xfs_mount_t *mp = XFS_VFSTOM(vp->v_vfsp);
+ int error = 0;
+ bhv_desc_t *bdp;
+ xfs_inode_t *ip;
+
+ if (vp->v_vfsp->vfs_flag & VFS_DMI) {
+ bdp = vn_bhv_lookup(VN_BHV_HEAD(vp), &xfs_vnodeops);
+ if (!bdp) {
+ error = -EINVAL;
+ goto open_exec_out;
+ }
+ ip = XFS_BHVTOI(bdp);
+ if (DM_EVENT_ENABLED(vp->v_vfsp, ip, DM_EVENT_READ)) {
+ error = -XFS_SEND_DATA(mp, DM_EVENT_READ, vp,
+ 0, 0, 0, NULL);
+ }
+ }
+open_exec_out:
+ return error;
+}
+#endif /* HAVE_FOP_OPEN_EXEC */
+
+/*
+ * Temporary workaround to the AIO direct IO write problem.
+ * This code can go and we can revert to do_sync_write once
+ * the writepage(s) rework is merged.
+ */
+STATIC ssize_t
+linvfs_write(
+ struct file *filp,
+ const char __user *buf,
+ size_t len,
+ loff_t *ppos)
+{
+ struct kiocb kiocb;
+ ssize_t ret;
+
+ init_sync_kiocb(&kiocb, filp);
+ kiocb.ki_pos = *ppos;
+ ret = __linvfs_write(&kiocb, buf, 0, len, kiocb.ki_pos);
+ *ppos = kiocb.ki_pos;
+ return ret;
+}
+STATIC ssize_t
+linvfs_write_invis(
+ struct file *filp,
+ const char __user *buf,
+ size_t len,
+ loff_t *ppos)
+{
+ struct kiocb kiocb;
+ ssize_t ret;
+
+ init_sync_kiocb(&kiocb, filp);
+ kiocb.ki_pos = *ppos;
+ ret = __linvfs_write(&kiocb, buf, IO_INVIS, len, kiocb.ki_pos);
+ *ppos = kiocb.ki_pos;
+ return ret;
+}
+
struct file_operations linvfs_file_operations = {
.llseek = generic_file_llseek,
.read = do_sync_read,
- .write = do_sync_write,
+ .write = linvfs_write,
.readv = linvfs_readv,
.writev = linvfs_writev,
.aio_read = linvfs_aio_read,
.sendfile = linvfs_sendfile,
.unlocked_ioctl = linvfs_ioctl,
#ifdef CONFIG_COMPAT
- .compat_ioctl = xfs_compat_ioctl,
+ .compat_ioctl = linvfs_compat_ioctl,
#endif
.mmap = linvfs_file_mmap,
.open = linvfs_open,
.release = linvfs_release,
.fsync = linvfs_fsync,
+#ifdef HAVE_FOP_OPEN_EXEC
+ .open_exec = linvfs_open_exec,
+#endif
};
struct file_operations linvfs_invis_file_operations = {
.llseek = generic_file_llseek,
.read = do_sync_read,
- .write = do_sync_write,
+ .write = linvfs_write_invis,
.readv = linvfs_readv_invis,
.writev = linvfs_writev_invis,
.aio_read = linvfs_aio_read_invis,
.sendfile = linvfs_sendfile,
.unlocked_ioctl = linvfs_ioctl_invis,
#ifdef CONFIG_COMPAT
- .compat_ioctl = xfs_compat_invis_ioctl,
+ .compat_ioctl = linvfs_compat_invis_ioctl,
#endif
.mmap = linvfs_file_mmap,
.open = linvfs_open,
.read = generic_read_dir,
.readdir = linvfs_readdir,
.unlocked_ioctl = linvfs_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = linvfs_compat_ioctl,
+#endif
.fsync = linvfs_fsync,
};