On Mon, Jul 14, 2014 at 9:18 PM, Seth Forshee <[email protected]> wrote: > fuse_copy_finish() assumes that mapaddr in fuse_copy_state refers > to a valid mapping if currbuf is non-NULL, but this isn't always > true when moving pages for splice I/O. This results in an > unbalanced call to kunmap_atomic() and thus an unbalanced > decrement of the preempt count. Avoid this by checking that > mapaddr is non-NULL before calling kunmap_atomic().
I guess this is obsoleted by: c55a01d360af fuse: avoid scheduling while atomic which moves the kmap/kunmap closer to the actual use of the mapping. Can you please verify? Thanks, Miklos -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
