diff options
Diffstat (limited to 'pkg/sentry/platform/ring0')
| -rw-r--r-- | pkg/sentry/platform/ring0/pagetables/pagetables.go | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/pkg/sentry/platform/ring0/pagetables/pagetables.go b/pkg/sentry/platform/ring0/pagetables/pagetables.go index 2df6792f7..2a83bbff2 100644 --- a/pkg/sentry/platform/ring0/pagetables/pagetables.go +++ b/pkg/sentry/platform/ring0/pagetables/pagetables.go @@ -16,8 +16,6 @@ package pagetables import ( - "sync" - "gvisor.googlesource.com/gvisor/pkg/sentry/usermem" ) @@ -39,8 +37,6 @@ type Node struct { // PageTables is a set of page tables. type PageTables struct { - mu sync.Mutex - // root is the pagetable root. root *Node @@ -122,7 +118,6 @@ func (p *PageTables) Map(addr usermem.Addr, length uintptr, opts MapOpts, physic return p.Unmap(addr, length) } prev := false - p.mu.Lock() end, ok := addr.AddLength(uint64(length)) if !ok { panic("pagetables.Map: overflow") @@ -139,7 +134,6 @@ func (p *PageTables) Map(addr usermem.Addr, length uintptr, opts MapOpts, physic } pte.Set(p, opts) }) - p.mu.Unlock() return prev } @@ -147,13 +141,11 @@ func (p *PageTables) Map(addr usermem.Addr, length uintptr, opts MapOpts, physic // // True is returned iff there was a previous mapping in the range. func (p *PageTables) Unmap(addr usermem.Addr, length uintptr) bool { - p.mu.Lock() count := 0 p.iterateRange(uintptr(addr), uintptr(addr)+length, false, func(s, e uintptr, pte *PTE, align uintptr) { pte.Clear() count++ }) - p.mu.Unlock() return count > 0 } |