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Searched refs:uffdio_register (Results 1 – 4 of 4) sorted by relevance

/linux-4.4.14/tools/testing/selftests/vm/
Duserfaultfd.c422 struct uffdio_register uffdio_register; in userfaultfd_stress() local
524 uffdio_register.range.start = (unsigned long) area_dst; in userfaultfd_stress()
525 uffdio_register.range.len = nr_pages * page_size; in userfaultfd_stress()
526 uffdio_register.mode = UFFDIO_REGISTER_MODE_MISSING; in userfaultfd_stress()
527 if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) { in userfaultfd_stress()
534 if ((uffdio_register.ioctls & expected_ioctls) != in userfaultfd_stress()
575 if (ioctl(uffd, UFFDIO_UNREGISTER, &uffdio_register.range)) { in userfaultfd_stress()
/linux-4.4.14/fs/
Duserfaultfd.c723 struct uffdio_register uffdio_register; in userfaultfd_register() local
724 struct uffdio_register __user *user_uffdio_register; in userfaultfd_register()
729 user_uffdio_register = (struct uffdio_register __user *) arg; in userfaultfd_register()
732 if (copy_from_user(&uffdio_register, user_uffdio_register, in userfaultfd_register()
733 sizeof(uffdio_register)-sizeof(__u64))) in userfaultfd_register()
737 if (!uffdio_register.mode) in userfaultfd_register()
739 if (uffdio_register.mode & ~(UFFDIO_REGISTER_MODE_MISSING| in userfaultfd_register()
743 if (uffdio_register.mode & UFFDIO_REGISTER_MODE_MISSING) in userfaultfd_register()
745 if (uffdio_register.mode & UFFDIO_REGISTER_MODE_WP) { in userfaultfd_register()
755 ret = validate_range(mm, uffdio_register.range.start, in userfaultfd_register()
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/linux-4.4.14/include/uapi/linux/
Duserfaultfd.h50 struct uffdio_register)
122 struct uffdio_register { struct
/linux-4.4.14/Documentation/vm/
Duserfaultfd.txt60 uffdio_register structure accordingly. The uffdio_register.mode
64 uffdio_register.ioctls bitmask of ioctls that are suitable to resolve
70 Userland can use the uffdio_register.ioctls to manage the virtual