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| author | Matthew Wilcox <willy@linux.intel.com> | 2016-05-20 17:01:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-20 17:58:30 -0700 |
| commit | 57578c2ea2cb2e0d362a9212ac83cf90221d4883 (patch) | |
| tree | 75d21adcd94ea063abe57c3e9f97076694183f7d /mm | |
| parent | 6c4bd68a2962c03423a226d949caf64216d013cc (diff) | |
| download | op-kernel-dev-57578c2ea2cb2e0d362a9212ac83cf90221d4883.zip op-kernel-dev-57578c2ea2cb2e0d362a9212ac83cf90221d4883.tar.gz | |
raxix-tree: introduce CONFIG_RADIX_TREE_MULTIORDER
I've been receiving increasingly concerned notes from 0day about how
much my recent changes have been bloating the radix tree. Make it
happier by only including multiorder support if
CONFIG_TRANSPARENT_HUGEPAGES is set.
This is an independent Kconfig option, so other radix tree users can
also set it if they have a need.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Kirill Shutemov <kirill.shutemov@linux.intel.com>
Cc: Jan Kara <jack@suse.com>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -404,6 +404,7 @@ config TRANSPARENT_HUGEPAGE bool "Transparent Hugepage Support" depends on HAVE_ARCH_TRANSPARENT_HUGEPAGE select COMPACTION + select RADIX_TREE_MULTIORDER help Transparent Hugepages allows the kernel to use huge pages and huge tlb transparently to the applications whenever possible. |
