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From: Usama Arif <[email protected]>
To: Jens Axboe <[email protected]>,
	[email protected], [email protected]
Cc: [email protected]
Subject: Re: [External] Re: [PATCH 0/5] io_uring: add opcodes for current working directory
Date: Tue, 31 May 2022 20:18:51 +0100	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>



On 31/05/2022 19:58, Jens Axboe wrote:
> On 5/31/22 12:41 PM, Usama Arif wrote:
>> This provides consistency between io_uring and the respective I/O syscall
>> and avoids having the user of liburing specify the cwd in sqe when working
>> with current working directory, for e.g. the user can directly call with
>> IORING_OP_RENAME instead of IORING_OP_RENAMEAT and providing AT_FDCWD in
>> sqe->fd and sqe->len, similar to syscall interface.
>>
>> This is done for rename, unlink, mkdir, symlink and link in this
>> patch-series.
>>
>> The tests for these opcodes in liburing are present at
>> https://github.com/uarif1/liburing/tree/cwd_opcodes. If the patches are
>> acceptable, I am happy to create a PR in above for the tests.
> 
> Can't we just provide prep helpers for them in liburing?
> 

We could add a io_uring_prep_unlink with IORING_OP_UNLINKAT and AT_FDCWD 
in liburing. But i guess adding in kernel adds a more consistent 
interface? and allows to make calls bypassing liburing (although i guess 
people probably don't bypass liburing that much :))

Making the changes in both kernel and liburing provides more of a 
standard interface in my opinion so maybe it looks better. But happy to 
just create a PR in liburing only with prep helpers as you suggested if 
you think that is better?

Thanks!


  reply	other threads:[~2022-05-31 19:18 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-31 18:41 [PATCH 0/5] io_uring: add opcodes for current working directory Usama Arif
2022-05-31 18:41 ` [PATCH 1/5] io_uring: add rename opcode " Usama Arif
2022-05-31 18:41 ` [PATCH 2/5] io_uring: add unlink " Usama Arif
2022-05-31 18:41 ` [PATCH 3/5] io_uring: add mkdir " Usama Arif
2022-05-31 18:41 ` [PATCH 4/5] io_uring: add symlink " Usama Arif
2022-05-31 18:41 ` [PATCH 5/5] io_uring: add link " Usama Arif
2022-05-31 18:58 ` [PATCH 0/5] io_uring: add opcodes " Jens Axboe
2022-05-31 19:18   ` Usama Arif [this message]
2022-05-31 19:22     ` [External] " Jens Axboe
2022-05-31 21:35       ` Usama Arif
2022-06-01  2:57         ` Jens Axboe

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