On Thu, 22 May 2025 19:21:10 +0530, Ritesh Harjani (IBM) wrote:
> Filesystems like XFS can implement atomic write I/O using either
> REQ_ATOMIC flag set in the bio or via CoW operation. It will be useful
> if we have a flag in trace events to distinguish between the two. This
> patch adds char 'U' (Untorn writes) to rwbs field of the trace events
> if REQ_ATOMIC flag is set in the bio.
>
> <W/ REQ_ATOMIC>
> =================
> xfs_io-4238 [009] ..... 4148.126843: block_rq_issue: 259,0 WFSU 16384 () 768 + 32 none,0,0 [xfs_io]
> <idle>-0 [009] d.h1. 4148.129864: block_rq_complete: 259,0 WFSU () 768 + 32 none,0,0 [0]
>
> [...]
Applied, thanks!
[1/1] traceevent/block: Add REQ_ATOMIC flag to block trace events
commit: 927244f6efff6df5f8f2ab58c7d1eec9f90cc3f2
Best regards,
--
Jens Axboe
