On Fri, Jan 30, 2015 at 05:20:45PM +0800, Qu Wenruo wrote: > [Use VFS protect for sysfs change] > The 6th patch will introduce a new help function sb_want_write() to > claim write permission to a superblock. > With this, we are able to do write protection like mnt_want_write() but > only needs to ensure that the superblock is writeable. > This also keeps the same synchronized behavior using ioctl, which will > block on frozen fs until it is unfrozen. You know what I think abuot the commit inside sysfs, but it looks better to me now with the sb_* protections so I give it a go. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
