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/linux-6.12.1/Documentation/admin-guide/mm/
Duserfaultfd.rst18 Userspace creates a new userfaultfd, initializes it, and registers one or more
20 region(s) result in a message being delivered to the userfaultfd, notifying
23 The ``userfaultfd`` (aside from registering and unregistering virtual
30 registered in the ``userfaultfd`` that allows userland to efficiently
37 ``userfaultfd`` runtime load never takes the mmap_lock for writing).
42 The ``userfaultfd``, once created, can also be
46 (well of course unless they later try to use the ``userfaultfd``
53 Creating a userfaultfd
56 There are two ways to create a new userfaultfd, each of which provide ways to
60 The first way, supported since userfaultfd was introduced, is the
[all …]
Dindex.rst43 userfaultfd
Dpagemap.rst23 Documentation/admin-guide/mm/userfaultfd.rst)
287 1. The userfaultfd file descriptor is created with ``userfaultfd`` syscall.
/linux-6.12.1/Documentation/translations/zh_TW/admin-guide/mm/
Dindex.rst48 * userfaultfd
/linux-6.12.1/Documentation/translations/zh_CN/admin-guide/mm/
Dindex.rst48 * userfaultfd
/linux-6.12.1/tools/testing/selftests/mm/
Drun_vmtests.sh34 - userfaultfd
35 tests for userfaultfd(2)
/linux-6.12.1/fs/
DMakefile29 obj-$(CONFIG_USERFAULTFD) += userfaultfd.o
/linux-6.12.1/Documentation/mm/
Dpage_table_check.rst27 userfaultfd is the only user of such to sanity check wr-protect bit against
/linux-6.12.1/Documentation/translations/zh_CN/mm/
Dhugetlbfs_reserv.rst403 有一些代码(最明显的是userfaultfd)不能调用restore_reserve_on_error。在这种情况下,
/linux-6.12.1/mm/
DMakefile129 obj-$(CONFIG_USERFAULTFD) += userfaultfd.o
DKconfig1209 Arch has userfaultfd write protection support
1214 Arch has userfaultfd minor fault support
1217 bool "Enable userfaultfd() system call"
1220 Enable the userfaultfd() system call that allows to intercept and
1230 Allows to create marker PTEs for userfaultfd write protection
1231 purposes. It is required to enable userfaultfd write protection on
/linux-6.12.1/Documentation/admin-guide/sysctl/
Dvm.rst972 userfaultfd system calls. Set this to 0 to restrict unprivileged users
974 SYS_CAP_PTRACE must pass UFFD_USER_MODE_ONLY in order for userfaultfd to
975 succeed. Prohibiting use of userfaultfd for handling faults from kernel
978 Set this to 1 to allow unprivileged users to use the userfaultfd system
983 Another way to control permissions for userfaultfd is to use
984 /dev/userfaultfd instead of userfaultfd(2). See
985 Documentation/admin-guide/mm/userfaultfd.rst.
/linux-6.12.1/kernel/
Dsys_ni.c256 COND_SYSCALL(userfaultfd);
/linux-6.12.1/Documentation/arch/arm64/
Dtagged-address-abi.rst60 ``userfaultfd()``, as fault addresses subsequently obtained by reading
/linux-6.12.1/Documentation/userspace-api/
Dmseal.rst178 - userfaultfd.
/linux-6.12.1/tools/perf/arch/mips/entry/syscalls/
Dsyscall_n64.tbl328 317 n64 userfaultfd sys_userfaultfd
/linux-6.12.1/arch/mips/kernel/syscalls/
Dsyscall_n64.tbl328 317 n64 userfaultfd sys_userfaultfd
Dsyscall_n32.tbl332 321 n32 userfaultfd sys_userfaultfd
/linux-6.12.1/arch/x86/entry/syscalls/
Dsyscall_64.tbl335 323 common userfaultfd sys_userfaultfd
/linux-6.12.1/arch/arm64/tools/
Dsyscall_64.tbl332 282 common userfaultfd sys_userfaultfd
/linux-6.12.1/tools/perf/arch/x86/entry/syscalls/
Dsyscall_64.tbl335 323 common userfaultfd sys_userfaultfd
/linux-6.12.1/scripts/
Dsyscall.tbl332 282 common userfaultfd sys_userfaultfd
/linux-6.12.1/arch/xtensa/kernel/syscalls/
Dsyscall.tbl365 342 common userfaultfd sys_userfaultfd
/linux-6.12.1/arch/parisc/kernel/syscalls/
Dsyscall.tbl390 344 common userfaultfd parisc_userfaultfd
/linux-6.12.1/arch/microblaze/kernel/syscalls/
Dsyscall.tbl399 389 common userfaultfd sys_userfaultfd

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