config ARCH_SUPPORTS_NUMA_BALANCING
bool
+ #
+ # For architectures that prefer to flush all TLBs after a number of pages
+ # are unmapped instead of sending one IPI per page to flush. The architecture
+ # must provide guarantees on what happens if a clean TLB cache entry is
+ # written after the unmap. Details are in mm/rmap.c near the check for
+ # should_defer_flush. The architecture should also consider if the full flush
+ # and the refill costs are offset by the savings of sending fewer IPIs.
+ config ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH
+ bool
+
#
# For architectures that know their GCC __int128 support is sound
#
applications use these syscalls, you can disable this option to save
space.
- default y
+ config USERFAULTFD
+ bool "Enable userfaultfd() system call"
+ select ANON_INODES
- If unsure, say Y.
-
+ depends on MMU
+ help
+ Enable the userfaultfd() system call that allows to intercept and
+ handle page faults in userland.
+
config PCI_QUIRKS
default y
bool "Enable PCI quirk workarounds" if EXPERT