Hi, Just a first thought. Is there a possibility to write a dummy value into sb->s_bdev for btrfs super blocks. Thus it will not be NULL and everything in do_emergency_remount() in fs/super.c will work as wanted.
Thanks, Andreas On 28.07.2012 15:41, Florian Albrechtskirchinger wrote: > Hi, > > During a SysRq emergency remount Btrfs mounts are not remounted. I tracked > the > issue down to this line in do_emergency_remount() in fs/super.c: > if (sb->s_root && sb->s_bdev && (sb->s_flags & MS_BORN) && > !(sb->s_flags & MS_RDONLY)) > s_bdev is NULL for Btrfs super blocks and subsequently do_remount_sb() is > never called. I couldn't think of a solution, besides resorting to an ugly > strcmp(sb->s_type->name, "btrfs"), without adding a field to struct > super_block > or similar changes. > Thoughts? > > Flo > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
