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Merge pull request #26378 from rhvgoyal/fix-max-retries

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devmapper: Fail to start container if xfs_nospace_max_retries can't be enforced
Upstream-commit: ce5eb34e68ec84505ede64efa9cfc9b8d177f086
Component: engine
This commit is contained in:
Brian Goff
2016-09-07 16:56:45 -04:00
committed by GitHub
parent 2280ed4544 30755d9f2c
commit 6aa1b8a3eb
1 changed files with 3 additions and 5 deletions
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8
components/engine/daemon/graphdriver/devmapper/deviceset.go
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@ -2325,11 +2325,7 @@ func (devices *DeviceSet) xfsSetNospaceRetries(info *devInfo) error {
filePath := "/sys/fs/xfs/" + dmDeviceName + "/error/metadata/ENOSPC/max_retries"
maxRetriesFile, err := os.OpenFile(filePath, os.O_WRONLY, 0)
if err != nil {
// Older kernels don't have this feature/file
if os.IsNotExist(err) {
return nil
}
return fmt.Errorf("devmapper: Failed to open file %v:%v", filePath, err)
return fmt.Errorf("devmapper: user specified daemon option dm.xfs_nospace_max_retries but it does not seem to be supported on this system :%v", err)
}
defer maxRetriesFile.Close()
@ -2383,6 +2379,8 @@ func (devices *DeviceSet) MountDevice(hash, path, mountLabel string) error {
if fstype == "xfs" && devices.xfsNospaceRetries != "" {
if err := devices.xfsSetNospaceRetries(info); err != nil {
syscall.Unmount(path, syscall.MNT_DETACH)
devices.deactivateDevice(info)
return err
}
}