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authorHeiko Carstens <hca@linux.ibm.com>2023-03-14 16:28:08 +0300
committerAndrew Morton <akpm@linux-foundation.org>2023-04-06 06:03:02 +0300
commite06f47a16573decc57498f2d02f9af3bb3e84cf2 (patch)
tree51722657e1d38694ced1774c2fb4ed108bb72834 /arch/s390/Kconfig
parentc7f8f31c00d187a2c71a241c7f2bd6aa102a4e6f (diff)
downloadlinux-e06f47a16573decc57498f2d02f9af3bb3e84cf2.tar.xz
s390/mm: try VMA lock-based page fault handling first
Attempt VMA lock-based page fault handling first, and fall back to the existing mmap_lock-based handling if that fails. This is the s390 variant of "x86/mm: try VMA lock-based page fault handling first". Link: https://lkml.kernel.org/r/20230314132808.1266335-1-hca@linux.ibm.com Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/s390/Kconfig')
-rw-r--r--arch/s390/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 9809c74e1240..548b5b587003 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -120,6 +120,7 @@ config S390
select ARCH_SUPPORTS_DEBUG_PAGEALLOC
select ARCH_SUPPORTS_HUGETLBFS
select ARCH_SUPPORTS_NUMA_BALANCING
+ select ARCH_SUPPORTS_PER_VMA_LOCK
select ARCH_USE_BUILTIN_BSWAP
select ARCH_USE_CMPXCHG_LOCKREF
select ARCH_WANTS_DYNAMIC_TASK_STRUCT