Hi Matthew et al, This series completes 5d8de293c224 ("vmcore: convert copy_oldmem_page() to take an iov_iter") for s390. Changes since v3: - concurrent access to HSA and oldmem swap buffers protected; Changes since v2: - Matthew Wilcox suggestion is adopted, with that... - copy_to_iter() is used instead of custom implementation; Changes since v1: - number of bytes left to copy on fail fixed; Thanks! Alexander Gordeev (4): s390/zcore: fix race when reading from hardware system area s390/crash: move copy_to_user_real() to crash_dump.c s390/crash: use static swap buffer for copy_to_user_real() s390/crash: support multi-segment iterators arch/s390/include/asm/os_info.h | 17 ++++- arch/s390/include/asm/sclp.h | 4 +- arch/s390/include/asm/uaccess.h | 1 - arch/s390/kernel/crash_dump.c | 114 ++++++++------------------------ arch/s390/mm/maccess.c | 26 -------- drivers/s390/char/zcore.c | 55 ++++++++------- 6 files changed, 71 insertions(+), 146 deletions(-) -- 2.34.1