Mike Christie 11f3f500ec fork: add kernel_clone_args flag to not dup/clone files ... Each vhost device gets a thread that is used to perform IO and management operations. Instead of a thread that is accessing a device, the thread is part of the device, so when it creates a thread using a helper based on copy_process we can't dup or clone the parent's files/FDS because it would do an extra increment on ourself. Later, when we do: Qemu process exits: do_exit -> exit_files -> put_files_struct -> close_files we would leak the device's resources because of that extra refcount on the fd or file_struct. This patch adds a no_files option so these worker threads can prevent taking an extra refcount on themselves. Signed-off-by: Mike Christie <michael.christie@oracle.com> Acked-by: Christian Brauner <brauner@kernel.org> Acked-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>		2023-03-12 10:54:43 +01:00
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affinity.h
autogroup.h
clock.h	sched/clock: Make local_clock() noinstr	2023-01-31 15:01:47 +01:00
cond_resched.h
coredump.h	mm: implement memory-deny-write-execute as a prctl	2023-02-02 22:33:24 -08:00
cpufreq.h
cputime.h
deadline.h
debug.h
hotplug.h
idle.h	cpuidle, sched: Remove instrumentation from TIF_{POLLING_NRFLAG,NEED_RESCHED}	2023-01-13 11:48:16 +01:00
init.h
isolation.h
jobctl.h
loadavg.h
mm.h
nohz.h
numa_balancing.h
posix-timers.h
prio.h
rseq_api.h
rt.h
sd_flags.h
signal.h
smt.h
stat.h
sysctl.h
task.h	fork: add kernel_clone_args flag to not dup/clone files	2023-03-12 10:54:43 +01:00
task_flags.h
task_stack.h
thread_info_api.h
topology.h
types.h
user.h
wake_q.h
xacct.h