]> git.kernelconcepts.de Git - karo-tx-linux.git/commit
epoll: support for disabling items, and a self-test app
authorPaton J. Lewis <palewis@adobe.com>
Fri, 28 Sep 2012 00:20:30 +0000 (10:20 +1000)
committerStephen Rothwell <sfr@canb.auug.org.au>
Thu, 4 Oct 2012 05:03:52 +0000 (15:03 +1000)
commitae76e04717d9ac4e45c879bf2ef2ab9274c77b7c
tree0f918a4428b01df56d44467b905b4371780ff03d
parent0c95d3f2c5fa7a1629b89bebc4ea60fb0326c920
epoll: support for disabling items, and a self-test app

Enhanced epoll_ctl to support EPOLL_CTL_DISABLE, which disables an epoll
item.  If epoll_ctl doesn't return -EBUSY in this case, it is then safe to
delete the epoll item in a multi-threaded environment.  Also added a new
test_epoll self- test app to both demonstrate the need for this feature
and test it.

Signed-off-by: Paton J. Lewis <palewis@adobe.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Paul Holland <pholland@adobe.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
fs/eventpoll.c
include/linux/eventpoll.h
tools/testing/selftests/Makefile
tools/testing/selftests/epoll/Makefile [new file with mode: 0644]
tools/testing/selftests/epoll/test_epoll.c [new file with mode: 0644]