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chunked: use a RWMutex for the cache 

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This commit is contained in:
Giuseppe Scrivano 2022-01-04 17:21:12 +01:00
parent 0d21b61022
commit 31b28dbedf
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1 changed files with 3 additions and 3 deletions
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6
pkg/chunked/cache_linux.go
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@ -45,7 +45,7 @@ type layersCache struct {
layers []layer layers []layer
refs int refs int
store storage.Store store storage.Store
mutex sync.Mutex mutex sync.RWMutex
created time.Time created time.Time
} }
@ -465,8 +465,8 @@ func (c *layersCache) findDigestInternal(digest string) (string, string, int64,
return "", "", -1, nil return "", "", -1, nil
} }
c.mutex.Lock() c.mutex.RLock()
defer c.mutex.Unlock() defer c.mutex.RUnlock()
for _, layer := range c.layers { for _, layer := range c.layers {
digest, off, len := findTag(digest, layer.metadata) digest, off, len := findTag(digest, layer.metadata)