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linux-headers: sync against v4.14-rc1

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Signed-off-by: Alexey Perevalov <a.perevalov@samsung.com>
Message-Id: <1506085187-24259-2-git-send-email-a.perevalov@samsung.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Alexey Perevalov 2017-09-22 15:59:47 +03:00 • committed by Paolo Bonzini
parent 65072c157e
commit d4083f50e0
6 changed files with 64 additions and 26 deletions
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16
linux-headers/linux/userfaultfd.h
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@ -23,7 +23,9 @@
UFFD_FEATURE_EVENT_REMOVE | \
UFFD_FEATURE_EVENT_UNMAP | \
UFFD_FEATURE_MISSING_HUGETLBFS | \
UFFD_FEATURE_MISSING_SHMEM)
UFFD_FEATURE_MISSING_SHMEM | \
UFFD_FEATURE_SIGBUS | \
UFFD_FEATURE_THREAD_ID)
#define UFFD_API_IOCTLS \
((__u64)1 << _UFFDIO_REGISTER | \
(__u64)1 << _UFFDIO_UNREGISTER | \
@ -78,6 +80,9 @@ struct uffd_msg {
struct {
__u64 flags;
__u64 address;
union {
__u32 ptid;
} feat;
} pagefault;
struct {
@ -153,6 +158,13 @@ struct uffdio_api {
* UFFD_FEATURE_MISSING_SHMEM works the same as
* UFFD_FEATURE_MISSING_HUGETLBFS, but it applies to shmem
* (i.e. tmpfs and other shmem based APIs).
*
* UFFD_FEATURE_SIGBUS feature means no page-fault
* (UFFD_EVENT_PAGEFAULT) event will be delivered, instead
* a SIGBUS signal will be sent to the faulting process.
*
* UFFD_FEATURE_THREAD_ID pid of the page faulted task_struct will
* be returned, if feature is not requested 0 will be returned.
*/
#define UFFD_FEATURE_PAGEFAULT_FLAG_WP (1<<0)
#define UFFD_FEATURE_EVENT_FORK (1<<1)
@ -161,6 +173,8 @@ struct uffdio_api {
#define UFFD_FEATURE_MISSING_HUGETLBFS (1<<4)
#define UFFD_FEATURE_MISSING_SHMEM (1<<5)
#define UFFD_FEATURE_EVENT_UNMAP (1<<6)
#define UFFD_FEATURE_SIGBUS (1<<7)
#define UFFD_FEATURE_THREAD_ID (1<<8)
__u64 features;
__u64 ioctls;