talos-op-linux/Documentation/ABI/testing/sysfs-kernel-mm-hugepages, branch masterTalos™ II Linux sources for OpenPOWERhttps://git.raptorcs.com/git/talos-op-linux/atom?h=master2018-04-27T23:02:48+00:00docs/admin-guide/mm: start moving here files from Documentation/vm2018-04-27T23:02:48+00:00Mike Rapoportrppt@linux.vnet.ibm.com2018-04-18T08:07:49+00:00urn:sha1:1ad1335dc58646764eda7bb054b350934a1b23ec
Several documents in Documentation/vm fit quite well into the "admin/user
guide" category. The documents that don't overload the reader with lots of
implementation details and provide coherent description of certain feature
can be moved to Documentation/admin-guide/mm.
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
docs/vm: rename documentation files to .rst2018-04-16T20:18:15+00:00Mike Rapoportrppt@linux.vnet.ibm.com2018-03-21T19:22:47+00:00urn:sha1:ad56b738c5dd223a2f66685830f82194025a6138
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
hugetlb: new sysfs interface2008-07-24T17:47:17+00:00Nishanth Aravamudannacc@us.ibm.com2008-07-24T04:27:44+00:00urn:sha1:a3437870160cf2caaac6bdd76c7377a5a4145a8c
Provide new hugepages user APIs that are more suited to multiple hstates
in sysfs. There is a new directory, /sys/kernel/hugepages. Underneath
that directory there will be a directory per-supported hugepage size,
e.g.:
/sys/kernel/hugepages/hugepages-64kB
/sys/kernel/hugepages/hugepages-16384kB
/sys/kernel/hugepages/hugepages-16777216kB
corresponding to 64k, 16m and 16g respectively. Within each
hugepages-size directory there are a number of files, corresponding to the
tracked counters in the hstate, e.g.:
/sys/kernel/hugepages/hugepages-64/nr_hugepages
/sys/kernel/hugepages/hugepages-64/nr_overcommit_hugepages
/sys/kernel/hugepages/hugepages-64/free_hugepages
/sys/kernel/hugepages/hugepages-64/resv_hugepages
/sys/kernel/hugepages/hugepages-64/surplus_hugepages
Of these files, the first two are read-write and the latter three are
read-only. The size of the hugepage being manipulated is trivially
deducible from the enclosing directory and is always expressed in kB (to
match meminfo).
[dave@linux.vnet.ibm.com: fix build]
[nacc@us.ibm.com: hugetlb: hang off of /sys/kernel/mm rather than /sys/kernel]
[nacc@us.ibm.com: hugetlb: remove CONFIG_SYSFS dependency]
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>