RE: [PATCH v2 2/9] ext2: tell DAX the size of allocation holes

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Theodore Ts'o [mailto:tytso@xxxxxxx]
> On Sat, Sep 10, 2016 at 12:31:51AM -0700, Christoph Hellwig wrote:
> > I've mentioned this before, but I'd like to repeat it.  With all the
> > work reqwuired in the file system I would prefer to drop DAX support
> > in ext2 (and if people really cry for it reinstate the trivial old xip
> > support).
> 
> Why is so much work required to support the new DAX interfaces in
> ext2?  Is that unique to ext2, or is adding DAX support just going to
> be painful for all file systems?  Hopefully it's not the latter,
> right?

It's always been my goal to make supporting DAX as easy as possible
for the filesystem.  Hence the sharing of the DIO locking, and the (it
turned out) premature reliance on helper functions.  It's more complex
than I wanted it to be right now, and I hope we get to simplify it again.

--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Reiser Filesystem Development]     [Ceph FS]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite National Park]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]     [Linux Media]

  Powered by Linux