On Tue, Jan 28, 2020 at 07:02:31PM +0100, Pavel Machek wrote: > Hi! > > > From: Masato Suzuki <masato.suzuki@xxxxxxx> > > > > > > > ZBC/ZAC report zones command may return less bytes than requested if the > > number of matching zones for the report request is small. However, unlike > > read or write commands, the remainder of incomplete report zones commands > > cannot be automatically requested by the block layer: the start sector of > > the next report cannot be known, and the report reply may not be 512B > > aligned for SAS drives (a report zone reply size is always a multiple of > > 64B). The regular request completion code executing bio_advance() and > > restart of the command remainder part currently causes invalid zone > > descriptor data to be reported to the caller if the report zone size is > > smaller than 512B (a case that can happen easily for a report of the last > > zones of a SAS drive for example). > > What is the story here? Mainline does not seem to have this patch, so > this is not the case of "upstream commit xxx" line simply missing. If > the same bug is fixed in mainline different way, it would be nice to > point to that commit.. Yes, this is not needed in 5.4 as it was rewritten differently there. thanks, greg k-h
