Messages in this thread | | | Subject | Re: [PATCH 0/3] zone-append support in aio and io-uring | From | Matias Bjørling <> | Date | Thu, 18 Jun 2020 10:04:32 +0200 |
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On 17/06/2020 19.23, Kanchan Joshi wrote: > This patchset enables issuing zone-append using aio and io-uring direct-io interface. > > For aio, this introduces opcode IOCB_CMD_ZONE_APPEND. Application uses start LBA > of the zone to issue append. On completion 'res2' field is used to return > zone-relative offset. > > For io-uring, this introduces three opcodes: IORING_OP_ZONE_APPEND/APPENDV/APPENDV_FIXED. > Since io_uring does not have aio-like res2, cqe->flags are repurposed to return zone-relative offset
Please provide a pointers to applications that are updated and ready to take advantage of zone append.
I do not believe it's beneficial at this point to change the libaio API, applications that would want to use this API, should anyway switch to use io_uring.
Please also note that applications and libraries that want to take advantage of zone append, can already use the zonefs file-system, as it will use the zone append command when applicable.
> Kanchan Joshi (1): > aio: add support for zone-append > > Selvakumar S (2): > fs,block: Introduce IOCB_ZONE_APPEND and direct-io handling > io_uring: add support for zone-append > > fs/aio.c | 8 +++++ > fs/block_dev.c | 19 +++++++++++- > fs/io_uring.c | 72 +++++++++++++++++++++++++++++++++++++++++-- > include/linux/fs.h | 1 + > include/uapi/linux/aio_abi.h | 1 + > include/uapi/linux/io_uring.h | 8 ++++- > 6 files changed, 105 insertions(+), 4 deletions(-) >
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