Subject: bug#7421: [Feature request]: add option to dd to issue ioctl(BLKFLSBUF) on output descriptior after each write or at the end

From: Марк Коренберг <[email-masked]>
Date: Wed, 17 Nov 2010 15:41:17 +0500

[Feature request]: add option to dd to issue ioctl(BLKFLSBUF) on
output descriptior after each write or at the end

I already has sent a message about fsync/fdatasync after each write.
It seems that ioctl(BLKFLSBUF) need be implemented in same semantics.

in oflags and conv
i.e. ioctl after each write oflags=blkflsbuf
and ioctl at the end, if specified in conv=blkflsbuf

-- 
Segmentation fault