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moby--moby/pkg/devicemapper/devmapper_wrapper_deferred_remove.go
Vivek Goyal 6964ab94be devicemapper: Add helper functions to allow deferred device removal
A lot of time device mapper devices leak across mount namespace which docker
does not know about and when docker tries to deactivate/delete device,
operation fails as device is open in some mount namespace.

Create a mechanism where one can defer the device deactivation/deletion
so that docker operation does not fail and device automatically goes
away when last reference to it is dropped.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
2015-04-21 18:14:59 -04:00

15 lines
301 B
Go

// +build linux,!libdm_no_deferred_remove
package devicemapper
/*
#cgo LDFLAGS: -L. -ldevmapper
#include <libdevmapper.h>
*/
import "C"
const LibraryDeferredRemovalSupport = true
func dmTaskDeferredRemoveFct(task *CDmTask) int {
return int(C.dm_task_deferred_remove((*C.struct_dm_task)(task)))
}