@@ -27,6 +27,7 @@ obj-$(CONFIG_ANON_INODES) += anon_inodes.o
obj-$(CONFIG_SIGNALFD) += signalfd.o
obj-$(CONFIG_TIMERFD) += timerfd.o
obj-$(CONFIG_EVENTFD) += eventfd.o
+obj-$(CONFIG_USERFAULTFD) += userfaultfd.o
obj-$(CONFIG_AIO) += aio.o
obj-$(CONFIG_FS_DAX) += dax.o
obj-$(CONFIG_FILE_LOCKING) += locks.o
@@ -1550,6 +1550,17 @@ config ADVISE_SYSCALLS
applications use these syscalls, you can disable this option to save
space.
+config USERFAULTFD
+ bool "Enable userfaultfd() system call"
+ select ANON_INODES
+ default y
+ depends on MMU
+ help
+ Enable the userfaultfd() system call that allows to intercept and
+ handle page faults in userland.
+
+ If unsure, say Y.
+
config PCI_QUIRKS
default y
bool "Enable PCI quirk workarounds" if EXPERT
This allows to select the userfaultfd during configuration to build it. Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> --- fs/Makefile | 1 + init/Kconfig | 11 +++++++++++ 2 files changed, 12 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html