]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
mm/hmm: avoid bloating arch that do not make use of HMM
authorJérôme Glisse <jglisse@redhat.com>
Fri, 8 Sep 2017 23:12:32 +0000 (16:12 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 9 Sep 2017 01:26:46 +0000 (18:26 -0700)
commit6b368cd4a44ce95b33f1d31f2f932e6ae707f319
tree9d22ab2947db9a2d2e275b3a25eec66ea0e0b132
parentd3df0a423397c9a1ae05c3857e8c04240dd85e68
mm/hmm: avoid bloating arch that do not make use of HMM

This moves all new code including new page migration helper behind kernel
Kconfig option so that there is no codee bloat for arch or user that do
not want to use HMM or any of its associated features.

arm allyesconfig (without all the patchset, then with and this patch):
   text    data     bss     dec     hex filename
83721896 46511131 27582964 157815991 96814b7 ../without/vmlinux
83722364 46511131 27582964 157816459 968168b vmlinux

[jglisse@redhat.com: struct hmm is only use by HMM mirror functionality]
Link: http://lkml.kernel.org/r/20170825213133.27286-1-jglisse@redhat.com
[sfr@canb.auug.org.au: fix build (arm multi_v7_defconfig)]
Link: http://lkml.kernel.org/r/20170828181849.323ab81b@canb.auug.org.au
Link: http://lkml.kernel.org/r/20170818032858.7447-1-jglisse@redhat.com
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/hmm.h
include/linux/memremap.h
include/linux/migrate.h
include/linux/mm.h
mm/Kconfig
mm/Makefile
mm/hmm.c
mm/migrate.c