Re: [PATCH 0/4] Fiemap, an extent mapping ioctl - round 2

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

 



> > Because xattrs tend to contain user data, not metadata?
> 
> Agreed, I don't see anything particularly strange about returning the
> xattr mapping, and to me it's not particularly fs specific  (well, the
> detailed format of the on-disk data might be, i.e. the layout of names &
> values within that blob of data, but it is still user data... I guess
> it's something of a grey area).

I'm thinking that some filesystems won't store it as a 'blob' at all,
but as, for example, leaves in a whole-fs tree structure on the same
footing as permissions, size, etc.

I don't see a problem with the xattr feature - it might be useful on
several filesystems.  (For my own program which tries to call stat()
in disk layout order to reduce seeks, knowing xattr blocks _would_ be
useful, as it could try to get xattrs in disk layout order too).

I just wanted to bring up that "all the xattrs of one inode" aren't
necessarily a blob of data in the same way as ordinary contents.
(Just in case it's being assumed that it is.)

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

[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux