Re: [PATCH 1/4] io_uring: add IORING_OP_READ{WRITE}V_PI cmd

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

 



On Wed, Feb 26, 2020 at 08:58:46AM -0700, Jens Axboe wrote:
> Yeah, should probably be a RWF_ flag instead, and a 64-bit SQE field
> for the PI data. The 'last iovec is PI' is kind of icky.

Abusing an iovec (although I though of the first once when looking
into it) looks really horrible, but has two huge advantages:

 - it doesn't require passing another argument all the way down
   the I/O stack
 - it works with all the vectored interfaces that take a flag
   argument, so not just io_uring, but also preadv2/pwritev2 and aio.
   And while I don't care too much about the last I think preadv2
   and pwritev2 are valuable to support.



[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