Using RWF_ATOMIC might allow the Linux VFS to support some form of IOCAP_ATOMIC on xfs and ext4; sys/unix seems to have everything needed in place.
Initial support for ext4 was merged in Linux 6.13, so I need to get my hands on such a system to try it out.
Using
RWF_ATOMICmight allow the Linux VFS to support some form ofIOCAP_ATOMIConxfsandext4;sys/unixseems to have everything needed in place.Initial support for
ext4was merged in Linux 6.13, so I need to get my hands on such a system to try it out.