diff options
| author | Mike Rapoport <rppt@linux.vnet.ibm.com> | 2017-02-24 14:56:02 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-24 17:46:54 -0800 |
| commit | d811914d87576c562e849c00d9f9beff45038801 (patch) | |
| tree | 7f31dbf8e5febb2396b7428d3c821792e5ce9787 /include/linux/userfaultfd_k.h | |
| parent | 0262d9c845ec349edf93f69688a5129c36cc2232 (diff) | |
| download | lwn-d811914d87576c562e849c00d9f9beff45038801.tar.gz lwn-d811914d87576c562e849c00d9f9beff45038801.zip | |
userfaultfd: non-cooperative: rename *EVENT_MADVDONTNEED to *EVENT_REMOVE
Patch series "userfaultfd: non-cooperative: add madvise() event for
MADV_REMOVE request".
These patches add notification of madvise(MADV_REMOVE) event to
non-cooperative userfaultfd monitor.
The first pacth renames EVENT_MADVDONTNEED to EVENT_REMOVE along with
relevant functions and structures. Using _REMOVE instead of
_MADVDONTNEED describes the event semantics more clearly and I hope it's
not too late for such change in the ABI.
This patch (of 3):
The UFFD_EVENT_MADVDONTNEED purpose is to notify uffd monitor about
removal of certain range from address space tracked by userfaultfd.
Hence, UFFD_EVENT_REMOVE seems to better reflect the operation
semantics. Respectively, 'madv_dn' field of uffd_msg is renamed to
'remove' and the madvise_userfault_dontneed callback is renamed to
userfaultfd_remove.
Link: http://lkml.kernel.org/r/1484814154-1557-2-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/userfaultfd_k.h')
| -rw-r--r-- | include/linux/userfaultfd_k.h | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/include/linux/userfaultfd_k.h b/include/linux/userfaultfd_k.h index f431861f22f1..2521542f6c07 100644 --- a/include/linux/userfaultfd_k.h +++ b/include/linux/userfaultfd_k.h @@ -61,10 +61,10 @@ extern void mremap_userfaultfd_complete(struct vm_userfaultfd_ctx *, unsigned long from, unsigned long to, unsigned long len); -extern void madvise_userfault_dontneed(struct vm_area_struct *vma, - struct vm_area_struct **prev, - unsigned long start, - unsigned long end); +extern void userfaultfd_remove(struct vm_area_struct *vma, + struct vm_area_struct **prev, + unsigned long start, + unsigned long end); #else /* CONFIG_USERFAULTFD */ @@ -112,10 +112,10 @@ static inline void mremap_userfaultfd_complete(struct vm_userfaultfd_ctx *ctx, { } -static inline void madvise_userfault_dontneed(struct vm_area_struct *vma, - struct vm_area_struct **prev, - unsigned long start, - unsigned long end) +static inline void userfaultfd_remove(struct vm_area_struct *vma, + struct vm_area_struct **prev, + unsigned long start, + unsigned long end) { } #endif /* CONFIG_USERFAULTFD */ |