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Move nslocking from s3 layer to object layer (#5382)

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Fixes #5350
This commit is contained in:
poornas
2018-01-12 20:34:52 -08:00
committed by Nitish Tiwari
parent dd202a1a5f
commit 0bb6247056
42 changed files with 468 additions and 355 deletions
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22
cmd/bucket-policy.go
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@@ -148,15 +148,8 @@ func initBucketPolicies(objAPI ObjectLayer) error {
func readBucketPolicyJSON(bucket string, objAPI ObjectLayer) (bucketPolicyReader io.Reader, err error) {
policyPath := pathJoin(bucketConfigPrefix, bucket, bucketPolicyConfig)
// Acquire a read lock on policy config before reading.
objLock := globalNSMutex.NewNSLock(minioMetaBucket, policyPath)
if err = objLock.GetRLock(globalOperationTimeout); err != nil {
return nil, err
}
defer objLock.RUnlock()
var buffer bytes.Buffer
err = objAPI.GetObject(minioMetaBucket, policyPath, 0, -1, &buffer)
err = objAPI.GetObject(minioMetaBucket, policyPath, 0, -1, &buffer, "")
if err != nil {
if isErrObjectNotFound(err) || isErrIncompleteBody(err) {
return nil, BucketPolicyNotFound{Bucket: bucket}
@@ -190,12 +183,6 @@ func readBucketPolicy(bucket string, objAPI ObjectLayer) (policy.BucketAccessPol
// if no policies are found.
func removeBucketPolicy(bucket string, objAPI ObjectLayer) error {
policyPath := pathJoin(bucketConfigPrefix, bucket, bucketPolicyConfig)
// Acquire a write lock on policy config before modifying.
objLock := globalNSMutex.NewNSLock(minioMetaBucket, policyPath)
if err := objLock.GetLock(globalOperationTimeout); err != nil {
return err
}
defer objLock.Unlock()
err := objAPI.DeleteObject(minioMetaBucket, policyPath)
if err != nil {
err = errors.Cause(err)
@@ -215,13 +202,6 @@ func writeBucketPolicy(bucket string, objAPI ObjectLayer, bpy policy.BucketAcces
return err
}
policyPath := pathJoin(bucketConfigPrefix, bucket, bucketPolicyConfig)
// Acquire a write lock on policy config before modifying.
objLock := globalNSMutex.NewNSLock(minioMetaBucket, policyPath)
if err = objLock.GetLock(globalOperationTimeout); err != nil {
return err
}
defer objLock.Unlock()
hashReader, err := hash.NewReader(bytes.NewReader(buf), int64(len(buf)), "", getSHA256Hash(buf))
if err != nil {
errorIf(err, "Unable to set policy for the bucket %s", bucket)