This small patch series adds the tools lsmem and chmem to util-linux. The lsmem and chmem tools were originally written in perl and are part of the s390-tools package which can be found here: https://www.ibm.com/developerworks/linux/linux390/s390-tools.html These two simple tools can be used to inspect and modify memory hotplug status of memory blocks (example below). Given that the tools are architecture independent, there is no reason to keep them in an s390 specific repository. They seem to be useful for other architectures as well. And apparently if new features are added to any of these tools everybody would benefit from it. This patch series converts the tools to C and adds them to util-linux, while both, the command line options as well as the output stay (mostly) compatible. If these tools get merged into util-linux we will remove their perl veriant from the s390-tools package. The perl variant within s390-tools was originally written by Gerald Schaefer. Clemens von Mann started the conversion to C, but left before his work was finished. So I took his patches and (hopefully) finished the conversion. Example output of the lsmem tool: # lsmem RANGE SIZE STATE REMOVABLE BLOCK 0x0000000000000000-0x000000005fffffff 1,5G online yes 0-5 0x0000000060000000-0x000000007fffffff 512M online no 6-7 0x0000000080000000-0x000000013fffffff 3G online yes 8-19 0x0000000140000000-0x000000014fffffff 256M offline - 20 0x0000000150000000-0x000000017fffffff 768M online no 21-23 Memory block size : 256M Total online memory : 5,8G Total offline memory: 256M Set memory range offline using the chmem tool: # chmem -v -d 0x0000000130000000-0x000000013fffffff Memory Block 19 (0x0000000130000000-0x000000013fffffff) disabled Set the same memory range offline by specifying the block number: # chmem -v -d -b 19 Memory Block 19 (0x0000000130000000-0x000000013fffffff) disabled Set memory size (1g) online using the chmem tool: # chmem -v -e 1g Memory Block 15 (0x00000000f0000000-0x00000000ffffffff) enabled Memory Block 16 (0x0000000100000000-0x000000010fffffff) enabled Memory Block 17 (0x0000000110000000-0x000000011fffffff) enabled Memory Block 18 (0x0000000120000000-0x000000012fffffff) enabled Please consider merging these two tools. Thanks, Heiko Heiko Carstens (4): lib,strutils: add strtoux[16|32|64]_or_err functions lsmem: new tool chmem: new tool lsmem: add testcase .gitignore | 2 + configure.ac | 14 + include/strutils.h | 3 + lib/strutils.c | 44 ++- sys-utils/Makemodule.am | 15 + sys-utils/chmem.8 | 95 ++++++ sys-utils/chmem.c | 325 ++++++++++++++++++++ sys-utils/lsmem.1 | 95 ++++++ sys-utils/lsmem.c | 494 +++++++++++++++++++++++++++++++ tests/commands.sh | 1 + tests/expected/lsmem/lsmem-s390-zvm-6g | 91 ++++++ tests/ts/lsmem/dumps/s390-zvm-6g.tar.bz2 | Bin 0 -> 2459 bytes tests/ts/lsmem/lsmem | 52 ++++ tests/ts/lsmem/mk-input.sh | 22 ++ 14 files changed, 1247 insertions(+), 6 deletions(-) create mode 100644 sys-utils/chmem.8 create mode 100644 sys-utils/chmem.c create mode 100644 sys-utils/lsmem.1 create mode 100644 sys-utils/lsmem.c create mode 100644 tests/expected/lsmem/lsmem-s390-zvm-6g create mode 100644 tests/ts/lsmem/dumps/s390-zvm-6g.tar.bz2 create mode 100755 tests/ts/lsmem/lsmem create mode 100755 tests/ts/lsmem/mk-input.sh -- 2.8.4 -- To unsubscribe from this list: send the line "unsubscribe util-linux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
