Root RAID HOWTO cookbook: Appendix E. - Gadi's raid stop patch for the linux kernel 12. Appendix E. - Gadi's raid stop patch for the linux kernel --- linux/drivers/block/md.c.old Fri Nov 21 13:37:11 1997 +++ linux/drivers/block/md.c Sat Dec 6 13:34:28 1997 @@ -622,8 +622,13 @@ return do_md_run (minor, (int) arg); case STOP_MD: - return do_md_stop (minor, inode); - + err = do_md_stop(minor, inode); + if (err) { + printk("md: enabling auto mdstop for %s\n", kdevname(inode->i_rdev)); + md_dev[minor].auto_mdstop = 1; + } + return err; + case BLKGETSIZE: /* Return device size */ if (!arg) return -EINVAL; err=verify_area (VERIFY_WRITE, (long *) arg, sizeof(long)); @@ -692,6 +697,10 @@ sync_dev (inode->i_rdev); md_dev[minor].busy--; + if (!md_dev[minor].busy && md_dev[minor].auto_mdstop) { + do_md_stop(minor, inode); + md_dev[minor].auto_mdstop = 0; + } } static int md_read (struct inode *inode, struct file *file, --- linux/include/linux/md.h~ Fri Nov 21 13:29:14 1997 +++ linux/include/linux/md.h Fri Nov 21 13:29:14 1997 @@ -260,6 +260,7 @@ int repartition; int busy; int nb_dev; + int auto_mdstop; void *private; }; i