posix: eventfd: Fix unsetting internal flags in ioctl
Commit e6eb0a705bc8 ("posix: eventfd: revise locking, signaling, and
allocation") introduced a regression where the internal flags of an
event file descriptor would be erased when calling the F_SETFL ioctl
operation.
This includes the flag EFD_IN_USE_INTERNAL which determines whether
this file descriptor has been opened, thus effectively closing the
eventfd whenever one tries to change a flag.
Signed-off-by: Celina Sophie Kalus <hello@celinakalus.de>
(cherry picked from commit 5bd86eaddb658a7d41f84acd28bb247d37c69b47)
1 file changed
