diff options
| author | Joel Fernandes (Google) <joel@joelfernandes.org> | 2019-01-04 00:28:41 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-01-04 22:13:48 +0100 |
| commit | 9f132f7e145506efc0744426cb338b18a54afc3b (patch) | |
| tree | 7d04ec135a84c0c4fb73c67944098f558898995d /kernel/locking/mutex.c | |
| parent | mm: speed up mremap by 20x on large regions (diff) | |
| download | linux-9f132f7e145506efc0744426cb338b18a54afc3b.tar.xz linux-9f132f7e145506efc0744426cb338b18a54afc3b.zip | |
mm: select HAVE_MOVE_PMD on x86 for faster mremap
Moving page-tables at the PMD-level on x86 is known to be safe. Enable
this option so that we can do fast mremap when possible.
Link: http://lkml.kernel.org/r/20181108181201.88826-4-joelaf@google.com
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Suggested-by: Kirill A. Shutemov <kirill@shutemov.name>
Acked-by: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/locking/mutex.c')
0 files changed, 0 insertions, 0 deletions