fcntl/fcntl33.c: add F_SETLEASE test
Test for feature F_SETLEASE of fcntl(2).
F_SETLEASE is used to establish a lease which provides a mechanism:
When a process (the lease breaker) performs an open(2) or truncate(2)
that conflicts with the lease, the system call will be blocked by
kernel, meanwhile the kernel notifies the lease holder by sending
it a signal (SIGIO by default), after the lease holder successes
to downgrade or remove the lease, the kernel permits the system
call of the lease breaker to proceed.
Signed-off-by: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
Reviewed-by: Cyril Hrubis <chrubis@suse.cz>
6 files changed