Re: [PATCH] xfs: avoid double deferrals for RWF_DONTCACHE writes

[Tal Zussman]

On 8/10/26 2:33 PM, Darrick J. Wong wrote:
> On Mon, Aug 10, 2026 at 12:39:19PM -0400, Tal Zussman wrote:
>> XFS already defers some writes to a workqueue when transactions are
>> needed to process the I/O completion. Disable the block layer bio task
>> completion in this case to avoid a major performance drop.
>> 
>> Fixes: efbde6f9f449 ("iomap: use BIO_COMPLETE_IN_TASK for dropbehind writeback")
> 
> What commit is this?
> 

It's the following commit in the block tree's for-7.3/block branch:

https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git/commit/?h=for-7.3/block&id=efbde6f9f449da3306f5b5d32f08829954ffb44d

> (If we're fixing something that's not in Linus' tree then I think the
> fixes tags aren't required)
>