kotovalexarian-likes-github/moby--moby
1
0
Fork 0
mirror of https://github.com/moby/moby.git synced 2022-11-09 12:21:53 -05:00
Code Releases Activity

builder: fix duplicate mount release

Browse source 
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
This commit is contained in:
Tonis Tiigi 2018-10-22 17:24:20 -07:00
parent f7e5154f37
commit 2732fe527f
1 changed files with 14 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
builder/builder-next/adapters/snapshot/snapshot.go
View file

@ -430,6 +430,7 @@ type mountable struct {
mounts []mount.Mount mounts []mount.Mount
acquire func() ([]mount.Mount, error) acquire func() ([]mount.Mount, error)
release func() error release func() error
refCount int
} }
func (m *mountable) Mount() ([]mount.Mount, error) { func (m *mountable) Mount() ([]mount.Mount, error) {
@ -437,6 +438,7 @@ func (m *mountable) Mount() ([]mount.Mount, error) {
defer m.mu.Unlock() defer m.mu.Unlock()
if m.mounts != nil { if m.mounts != nil {
m.refCount++
return m.mounts, nil return m.mounts, nil
} }
@ -445,6 +447,7 @@ func (m *mountable) Mount() ([]mount.Mount, error) {
return nil, err return nil, err
} }
m.mounts = mounts m.mounts = mounts
m.refCount = 1
return m.mounts, nil return m.mounts, nil
} }
@ -452,6 +455,13 @@ func (m *mountable) Mount() ([]mount.Mount, error) {
func (m *mountable) Release() error { func (m *mountable) Release() error {
m.mu.Lock() m.mu.Lock()
defer m.mu.Unlock() defer m.mu.Unlock()
if m.refCount > 1 {
m.refCount--
return nil
}
m.refCount = 0
if m.release == nil { if m.release == nil {
return nil return nil
} }