On Tue, Oct 31, 2017 at 03:50:53PM +0000, Dave P Martin wrote: > Currently the regset API doesn't allow for the possibility that > regsets (or at least, the amount of meaningful data in a regset) > may change in size. > > In particular, this results in useless padding being added to > coredumps if a regset's current size is smaller than its > theoretical maximum size. > > This patch adds a get_size() function to struct user_regset. > Individual regset implementations can implement this function to > return the current size of the regset data. A regset_size() > function is added to provide callers with an abstract interface for > determining the size of a regset without needing to know whether > the regset is dynamically sized or not. > > The only affected user of this interface is the ELF coredump code: > This patch ports ELF coredump to dump regsets with their actual > size in the coredump. This has no effect except for new regsets > that are dynamically sized and provide a get_size() implementation. > > Signed-off-by: Dave Martin <dave.mar...@arm.com> > Reviewed-by: Alex Bennée <alex.ben...@linaro.org> > Reviewed-by: Catalin Marinas <catalin.mari...@arm.com> > Cc: Oleg Nesterov <o...@redhat.com> > Cc: Alexander Viro <v...@zeniv.linux.org.uk> > Cc: Thomas Gleixner <t...@linutronix.de> > Cc: Ingo Molnar <mi...@redhat.com> > Cc: "H. Peter Anvin" <h...@zytor.com> > Cc: Dmitry Safonov <dsafo...@virtuozzo.com> > Cc: H. J. Lu <hjl.to...@gmail.com> > > --- > > **Dropped** Reviewed-by: Alex Bennée <alex.ben...@linaro.org> > **Dropped** Reviewed-by: Catalin Marinas <catalin.mari...@arm.com> > (due to bug fix applied against v4 of this patch.)
It seems that the Reviewed-by tags are still there ;). Anyway, on the new patch: Reviewed-by: Catalin Marinas <catalin.mari...@arm.com> _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm