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authorNishanth Aravamudan <nacc@us.ibm.com>2007-12-17 16:20:25 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-12-17 19:28:17 -0800
commitd5dbac87b4343d98ae509fb787efb77f8ddc484b (patch)
tree5a3cd992275cd754724b7450ec34cea6fa241f6e /Documentation/sysctl
parent368d2c6358c3c62b3820a8a73f9fe9c8b540cdea (diff)
downloadlwn-d5dbac87b4343d98ae509fb787efb77f8ddc484b.tar.gz
lwn-d5dbac87b4343d98ae509fb787efb77f8ddc484b.zip
Documentation: update hugetlb information
The hugetlb documentation has gotten a bit out of sync with the current code. Updated the sysctl file to refer to Documentation/vm/hugetlbpage.txt. Update that file to contain the current state of affairs (with the newer named sysctl in place). Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Acked-by: Adam Litke <agl@us.ibm.com> Cc: William Lee Irwin III <wli@holomorphy.com> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/sysctl')
-rw-r--r--Documentation/sysctl/vm.txt19
1 files changed, 19 insertions, 0 deletions
diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt
index b89570c30434..6f31f0a247d0 100644
--- a/Documentation/sysctl/vm.txt
+++ b/Documentation/sysctl/vm.txt
@@ -34,6 +34,8 @@ Currently, these files are in /proc/sys/vm:
- oom_kill_allocating_task
- mmap_min_address
- numa_zonelist_order
+- nr_hugepages
+- nr_overcommit_hugepages
==============================================================
@@ -305,3 +307,20 @@ will select "node" order in following case.
Otherwise, "zone" order will be selected. Default order is recommended unless
this is causing problems for your system/application.
+
+==============================================================
+
+nr_hugepages
+
+Change the minimum size of the hugepage pool.
+
+See Documentation/vm/hugetlbpage.txt
+
+==============================================================
+
+nr_overcommit_hugepages
+
+Change the maximum size of the hugepage pool. The maximum is
+nr_hugepages + nr_overcommit_hugepages.
+
+See Documentation/vm/hugetlbpage.txt