Re: [PATCH v3 1/4] block/io: accept NULL qiov in bdrv_pad_request

2024-03-25 Thread Stefan Hajnoczi
On Fri, Mar 22, 2024 at 10:50:06AM +0100, Fiona Ebner wrote: > From: Stefan Reiter > > Some operations, e.g. block-stream, perform reads while discarding the > results (only copy-on-read matters). In this case, they will pass NULL > as the target QEMUIOVector, which will however trip bdrv_pad_req

[PATCH v3 1/4] block/io: accept NULL qiov in bdrv_pad_request

2024-03-22 Thread Fiona Ebner
From: Stefan Reiter Some operations, e.g. block-stream, perform reads while discarding the results (only copy-on-read matters). In this case, they will pass NULL as the target QEMUIOVector, which will however trip bdrv_pad_request, since it wants to extend its passed vector. In particular, this i