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| author | Pavel Emelyanov <xemul@parallels.com> | 2017-02-23 00:42:21 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-23 01:41:28 +0100 |
| commit | 9cd75c3cd4c3d06aa0c4ed8ef5327d811a8b6cff (patch) | |
| tree | d1a58d5498d477fe285205b6b06587a820b76559 /block/blk-flush.c | |
| parent | userfaultfd: non-cooperative: Split the find_userfault() routine (diff) | |
| download | linux-9cd75c3cd4c3d06aa0c4ed8ef5327d811a8b6cff.tar.xz linux-9cd75c3cd4c3d06aa0c4ed8ef5327d811a8b6cff.zip | |
userfaultfd: non-cooperative: add ability to report non-PF events from uffd descriptor
The custom events are queued in ctx->event_wqh not to disturb the
fast-path-ed PF queue-wait-wakeup functions.
The events to be generated (other than PF-s) are requested in UFFD_API
ioctl with the uffd_api.features bits. Those, known by the kernel, are
then turned on and reported back to the user-space.
Link: http://lkml.kernel.org/r/20161216144821.5183-7-aarcange@redhat.com
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Michael Rapoport <RAPOPORT@il.ibm.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'block/blk-flush.c')
0 files changed, 0 insertions, 0 deletions