Commit a14c151e authored by Andrea Arcangeli's avatar Andrea Arcangeli Committed by Linus Torvalds

userfaultfd: buildsystem activation

This allows to select the userfaultfd during configuration to build it.
Signed-off-by: default avatarAndrea Arcangeli <>
Acked-by: default avatarPavel Emelyanov <>
Cc: Sanidhya Kashyap <>
Cc: "Kirill A. Shutemov" <>
Cc: Andres Lagar-Cavilla <>
Cc: Dave Hansen <>
Cc: Paolo Bonzini <>
Cc: Rik van Riel <>
Cc: Mel Gorman <>
Cc: Andy Lutomirski <>
Cc: Hugh Dickins <>
Cc: Peter Feiner <>
Cc: "Dr. David Alan Gilbert" <>
Cc: Johannes Weiner <>
Cc: "Huangpeng (Peter)" <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent 8d2afd96
......@@ -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
......@@ -1576,6 +1576,17 @@ config ADVISE_SYSCALLS
applications use these syscalls, you can disable this option to save
bool "Enable userfaultfd() system call"
default y
depends on MMU
Enable the userfaultfd() system call that allows to intercept and
handle page faults in userland.
If unsure, say Y.
default y
bool "Enable PCI quirk workarounds" if EXPERT
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