Hi Andrew,
I realize it's getting late in the cycle but any chance you could take this one as well for v6.1-rc6? It fixes a minor bug introduced in v6.1-rc1 which could cause some drivers to think they can't migrate pages when they can. Thanks. Ralph Campbell <[email protected]> writes: > On 11/10/22 16:51, Alistair Popple wrote: >> migrate_vma->cpages originally contained a count of the number of >> pages migrating including non-present pages which can be poluated > > "populated" > >> directly on the target. >> >> Commit 241f68859656 ("mm/migrate_device.c: refactor migrate_vma and >> migrate_deivce_coherent_page()") inadvertantly changed this to contain >> just the number of pages that were unmapped. Usage of >> migrate_vma->cpages isn't documented, but most drivers use it to see >> if all the requested addresses can be migrated so restore the original >> behaviour. >> >> Fixes: 241f68859656 ("mm/migrate_device.c: refactor migrate_vma and >> migrate_deivce_coherent_page()") >> Signed-off-by: Alistair Popple <[email protected]> >> Reported-by: Ralph Campbell <[email protected]> > > You can add > Reviewed-by: Ralph Campbell <[email protected]> > > Thanks!
