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| author | Davide Libenzi <davidel@xmailserver.org> | 2010-01-13 09:34:36 -0800 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2010-01-25 12:26:38 -0200 |
| commit | cb289d6244a37cf932c571d6deb0daa8030f931b (patch) | |
| tree | 05bea15a25c9d9a4dcc0658a6a8bf845daca535a /mm/page_cgroup.c | |
| parent | a6085fbaf65ab09bfb5ec8d902d6d21680fe1895 (diff) | |
| download | lwn-cb289d6244a37cf932c571d6deb0daa8030f931b.tar.gz lwn-cb289d6244a37cf932c571d6deb0daa8030f931b.zip | |
eventfd - allow atomic read and waitqueue remove
KVM needs a wait to atomically remove themselves from the eventfd ->poll()
wait queue head, in order to handle correctly their IRQfd deassign
operation.
This patch introduces such API, plus a way to read an eventfd from its
context.
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'mm/page_cgroup.c')
0 files changed, 0 insertions, 0 deletions