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dm: fix mevent timing issue

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If a file descriptor being monitored by epoll_wait is closed
in another thread, the result is unspecified. So add all mevents
removed in other threads to delete list. And drain the list in
the dispatch mevent thread.

Tracked-On: #6877
Signed-off-by: Yuanyuan Zhao <yuanyuan.zhao@linux.intel.com>
Acked-by: Wang, Yu1 <yu1.wang@intel.com>
This commit is contained in:
Yuanyuan Zhao 2021-11-22 16:52:29 +08:00 committed by wenlingz
parent 3f78ba191e
commit a609c9799a
1 changed files with 1 additions and 1 deletions
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2
devicemodel/core/mevent.c
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@ -341,7 +341,7 @@ mevent_delete_event(struct mevent *evp, int closefd)
evp->closefd = closefd;
epoll_ctl(epoll_fd, EPOLL_CTL_DEL, evp->me_fd, NULL);
if (!is_dispatch_thread() && evp->teardown != NULL) {
if (!is_dispatch_thread()) {
mevent_add_to_del_list(evp, closefd);
} else {
if (evp->closefd) {