Prevent race condition on zfs-linux internal implementation of access to mnttab

This commit is contained in:
Faruk Kasumovic 2018-11-09 16:08:20 +01:00
parent 0d2d2cf113
commit 6d3c5e3bd4
1 changed files with 8 additions and 0 deletions

8
zfs.go
View File

@ -182,8 +182,10 @@ func DatasetCreate(path string, dtype DatasetType,
// and cleanup dataset object/s from memory)
func (d *Dataset) Close() {
// path, _ := d.Path()
Global.Mtx.Lock()
C.dataset_list_close(d.list)
d.list = nil
Global.Mtx.Unlock()
for _, cd := range d.Children {
cd.Close()
}
@ -320,6 +322,8 @@ func (d *Dataset) GetProperty(p Prop) (prop Property, err error) {
err = errors.New(msgDatasetIsNil)
return
}
Global.Mtx.Lock()
defer Global.Mtx.Unlock()
plist := C.read_dataset_property(d.list, C.int(p))
if plist == nil {
err = LastError()
@ -492,6 +496,8 @@ func (d *Dataset) IsMounted() (mounted bool, where string) {
if d.list == nil {
return
}
Global.Mtx.Lock()
defer Global.Mtx.Unlock()
mp := C.dataset_is_mounted(d.list)
// defer C.free(mp)
if mounted = (mp != nil); mounted {
@ -503,6 +509,8 @@ func (d *Dataset) IsMounted() (mounted bool, where string) {
// Mount the given filesystem.
func (d *Dataset) Mount(options string, flags int) (err error) {
Global.Mtx.Lock()
defer Global.Mtx.Unlock()
if d.list == nil {
err = errors.New(msgDatasetIsNil)
return