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Use the correct macro (I, B) for the font change of one argument, not
those that are used for alternating two fonts, like "BR", "IR", "RB",
or "RI".
Signed-off-by: Bjarni Ingi Gislason <bjarniig@rhi.hi.is>
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Now the way how lsmem lists memory ranges is affected by used output
columns. It makes it very difficult to use in scripts where you want
to use for example only one column
ranges=$(lsmem -oRANGE)
and in this case all is merged to the one (or two) huge ranges and all
attributes are ignored. The --split allows to control this behavior
ranges=$(lsmem -oRANGE --split=STATE,ZONES)
forces lsmem to list ranges by STATE and ZONES differences.
Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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With this patch, valid memory zones can be shown with lsmem, and chmem can
set memory online/offline in a specific memory zone, if allowed by the
kernel. The valid memory zones are read from the "valid_zones" sysfs
attribute, and setting memory online to a specific zone is done by
echoing "online_kernel" or "online_movable" to the "state" sysfs
attribute, in addition to the previous "online".
This patch also changes the default behavior of chmem, when setting memory
online without specifying a memory zone. If valid, memory will be set
online to the zone Movable. This zone is preferable for memory hotplug, as
it makes memory offline much more likely to succeed.
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
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The links to ftp://ftp.kernel.org/ are replaced by
https://www.kernel.org/.
Signed-off-by: Karel Zak <kzak@redhat.com>
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Move the s390 specific chmem tool to util-linux.
The chmem tool was originally written in perl and is part of the
s390-tools package which can be found here:
https://www.ibm.com/developerworks/linux/linux390/s390-tools.html
Given that the tool is architecture independent, there is no reason to
keep it in an s390 specific repository. It seems to be useful for
other architectures as well.
This patch converts the tool to C and adds it to util-linux, while the
command line options stay compatible. The only exception is the option
"-v" which used to be the short form of "--version". That got changed
to "-V" so it behaves like most other tools contained within
util-linux.
The chmem tool can be used to set memory online or offline. This can
be achieved by specifying a memory range:
Memory Block 19 (0x0000000130000000-0x000000013fffffff) disabled
or by specifying a size where chmem will automatically select memory
blocks:
Memory Block 21 (0x0000000150000000-0x000000015fffffff) disable failed
Memory Block 18 (0x0000000120000000-0x000000012fffffff) disabled
Memory Block 17 (0x0000000110000000-0x000000011fffffff) disabled
Memory Block 16 (0x0000000100000000-0x000000010fffffff) disabled
Memory Block 15 (0x00000000f0000000-0x00000000ffffffff) disabled
or by specifying memory block numbers instead of address ranges:
Memory Block 15 (0x00000000f0000000-0x00000000ffffffff) disabled
Memory Block 16 (0x0000000100000000-0x000000010fffffff) disabled
Memory Block 17 (0x0000000110000000-0x000000011fffffff) disabled
Memory Block 18 (0x0000000120000000-0x000000012fffffff) disabled
This is based on a patch from Clemens von Mann.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
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