ecfa6df5b6
This separates out the DeviceSet logic a bit better from the raw device mapper operations. devicemapper: Serialize addess to the devicemapper deviceset This code is not safe to run in multiple threads at the same time, and neither is libdevmapper. DeviceMapper: Move deactivate into UnmountDevice This way the deactivate is atomic wrt othe device mapper operations and will not fail with EBUSY if someone else starts a devicemapper operation inbetween unmount and deactivate. devmapper: Fix loopback mounting regression Some changes were added to attach_loop_device which added a perror() in a place that caused it to override errno so that a later errno != EBUSY failed. This fixes that and cleans up the error reporting a bit. devmapper: Build on old kernels without LOOP_CTL_GET_FREE define Upstream-commit: c77697a45ca615f66351a7363e93c3903e92553f Component: engine
15 lines
410 B
Go
15 lines
410 B
Go
package docker
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type DeviceSet interface {
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AddDevice(hash, baseHash string) error
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SetInitialized(hash string) error
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DeactivateDevice(hash string) error
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RemoveDevice(hash string) error
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MountDevice(hash, path string) error
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UnmountDevice(hash, path string, deactivate bool) error
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HasDevice(hash string) bool
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HasInitializedDevice(hash string) bool
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HasActivatedDevice(hash string) bool
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Shutdown() error
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}
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