diff options
37 files changed, 243 insertions, 121 deletions
diff --git a/pkg/abi/linux/linux_abi_autogen_unsafe.go b/pkg/abi/linux/linux_abi_autogen_unsafe.go index 2f454ec80..f99ef3366 100644 --- a/pkg/abi/linux/linux_abi_autogen_unsafe.go +++ b/pkg/abi/linux/linux_abi_autogen_unsafe.go @@ -1099,12 +1099,12 @@ func (s *Statx) UnmarshalBytes(src []byte) { // Packed implements marshal.Marshallable.Packed. //go:nosplit func (s *Statx) Packed() bool { - return s.Ctime.Packed() && s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() + return s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() } // MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe. func (s *Statx) MarshalUnsafe(dst []byte) { - if s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() { + if s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() { safecopy.CopyIn(dst, unsafe.Pointer(s)) } else { // Type Statx doesn't have a packed layout in memory, fallback to MarshalBytes. @@ -1114,7 +1114,7 @@ func (s *Statx) MarshalUnsafe(dst []byte) { // UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe. func (s *Statx) UnmarshalUnsafe(src []byte) { - if s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() { + if s.Ctime.Packed() && s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() { safecopy.CopyOut(unsafe.Pointer(s), src) } else { // Type Statx doesn't have a packed layout in memory, fallback to UnmarshalBytes. @@ -1125,7 +1125,7 @@ func (s *Statx) UnmarshalUnsafe(src []byte) { // CopyOutN implements marshal.Marshallable.CopyOutN. //go:nosplit func (s *Statx) CopyOutN(cc marshal.CopyContext, addr usermem.Addr, limit int) (int, error) { - if !s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() { + if !s.Ctime.Packed() && s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() { // Type Statx doesn't have a packed layout in memory, fall back to MarshalBytes. buf := cc.CopyScratchBuffer(s.SizeBytes()) // escapes: okay. s.MarshalBytes(buf) // escapes: fallback. @@ -1155,7 +1155,7 @@ func (s *Statx) CopyOut(cc marshal.CopyContext, addr usermem.Addr) (int, error) // CopyIn implements marshal.Marshallable.CopyIn. //go:nosplit func (s *Statx) CopyIn(cc marshal.CopyContext, addr usermem.Addr) (int, error) { - if !s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() { + if !s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() && s.Atime.Packed() { // Type Statx doesn't have a packed layout in memory, fall back to UnmarshalBytes. buf := cc.CopyScratchBuffer(s.SizeBytes()) // escapes: okay. length, err := cc.CopyInBytes(addr, buf) // escapes: okay. @@ -1181,7 +1181,7 @@ func (s *Statx) CopyIn(cc marshal.CopyContext, addr usermem.Addr) (int, error) { // WriteTo implements io.WriterTo.WriteTo. func (s *Statx) WriteTo(writer io.Writer) (int64, error) { - if !s.Ctime.Packed() && s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() { + if !s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() { // Type Statx doesn't have a packed layout in memory, fall back to MarshalBytes. buf := make([]byte, s.SizeBytes()) s.MarshalBytes(buf) @@ -4472,7 +4472,7 @@ func (i *IPTEntry) CopyOut(cc marshal.CopyContext, addr usermem.Addr) (int, erro // CopyIn implements marshal.Marshallable.CopyIn. //go:nosplit func (i *IPTEntry) CopyIn(cc marshal.CopyContext, addr usermem.Addr) (int, error) { - if !i.Counters.Packed() && i.IP.Packed() { + if !i.IP.Packed() && i.Counters.Packed() { // Type IPTEntry doesn't have a packed layout in memory, fall back to UnmarshalBytes. buf := cc.CopyScratchBuffer(i.SizeBytes()) // escapes: okay. length, err := cc.CopyInBytes(addr, buf) // escapes: okay. @@ -4604,7 +4604,7 @@ func (i *IPTIP) UnmarshalBytes(src []byte) { // Packed implements marshal.Marshallable.Packed. //go:nosplit func (i *IPTIP) Packed() bool { - return i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() + return i.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() } // MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe. @@ -4619,7 +4619,7 @@ func (i *IPTIP) MarshalUnsafe(dst []byte) { // UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe. func (i *IPTIP) UnmarshalUnsafe(src []byte) { - if i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() { + if i.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() { safecopy.CopyOut(unsafe.Pointer(i), src) } else { // Type IPTIP doesn't have a packed layout in memory, fallback to UnmarshalBytes. @@ -4660,7 +4660,7 @@ func (i *IPTIP) CopyOut(cc marshal.CopyContext, addr usermem.Addr) (int, error) // CopyIn implements marshal.Marshallable.CopyIn. //go:nosplit func (i *IPTIP) CopyIn(cc marshal.CopyContext, addr usermem.Addr) (int, error) { - if !i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() { + if !i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() && i.Src.Packed() { // Type IPTIP doesn't have a packed layout in memory, fall back to UnmarshalBytes. buf := cc.CopyScratchBuffer(i.SizeBytes()) // escapes: okay. length, err := cc.CopyInBytes(addr, buf) // escapes: okay. @@ -4686,7 +4686,7 @@ func (i *IPTIP) CopyIn(cc marshal.CopyContext, addr usermem.Addr) (int, error) { // WriteTo implements io.WriterTo.WriteTo. func (i *IPTIP) WriteTo(writer io.Writer) (int64, error) { - if !i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() { + if !i.SrcMask.Packed() && i.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed() { // Type IPTIP doesn't have a packed layout in memory, fall back to MarshalBytes. buf := make([]byte, i.SizeBytes()) i.MarshalBytes(buf) @@ -5410,7 +5410,7 @@ func (i *IP6TEntry) MarshalUnsafe(dst []byte) { // UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe. func (i *IP6TEntry) UnmarshalUnsafe(src []byte) { - if i.IPv6.Packed() && i.Counters.Packed() { + if i.Counters.Packed() && i.IPv6.Packed() { safecopy.CopyOut(unsafe.Pointer(i), src) } else { // Type IP6TEntry doesn't have a packed layout in memory, fallback to UnmarshalBytes. @@ -5421,7 +5421,7 @@ func (i *IP6TEntry) UnmarshalUnsafe(src []byte) { // CopyOutN implements marshal.Marshallable.CopyOutN. //go:nosplit func (i *IP6TEntry) CopyOutN(cc marshal.CopyContext, addr usermem.Addr, limit int) (int, error) { - if !i.IPv6.Packed() && i.Counters.Packed() { + if !i.Counters.Packed() && i.IPv6.Packed() { // Type IP6TEntry doesn't have a packed layout in memory, fall back to MarshalBytes. buf := cc.CopyScratchBuffer(i.SizeBytes()) // escapes: okay. i.MarshalBytes(buf) // escapes: fallback. @@ -5597,7 +5597,7 @@ func (i *IP6TIP) Packed() bool { // MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe. func (i *IP6TIP) MarshalUnsafe(dst []byte) { - if i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() { + if i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() && i.Src.Packed() { safecopy.CopyIn(dst, unsafe.Pointer(i)) } else { // Type IP6TIP doesn't have a packed layout in memory, fallback to MarshalBytes. @@ -5607,7 +5607,7 @@ func (i *IP6TIP) MarshalUnsafe(dst []byte) { // UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe. func (i *IP6TIP) UnmarshalUnsafe(src []byte) { - if i.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() { + if i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() { safecopy.CopyOut(unsafe.Pointer(i), src) } else { // Type IP6TIP doesn't have a packed layout in memory, fallback to UnmarshalBytes. @@ -5674,7 +5674,7 @@ func (i *IP6TIP) CopyIn(cc marshal.CopyContext, addr usermem.Addr) (int, error) // WriteTo implements io.WriterTo.WriteTo. func (i *IP6TIP) WriteTo(writer io.Writer) (int64, error) { - if !i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() && i.Src.Packed() { + if !i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() { // Type IP6TIP doesn't have a packed layout in memory, fall back to MarshalBytes. buf := make([]byte, i.SizeBytes()) i.MarshalBytes(buf) @@ -6193,7 +6193,7 @@ func (r *Rusage) UnmarshalUnsafe(src []byte) { // CopyOutN implements marshal.Marshallable.CopyOutN. //go:nosplit func (r *Rusage) CopyOutN(cc marshal.CopyContext, addr usermem.Addr, limit int) (int, error) { - if !r.STime.Packed() && r.UTime.Packed() { + if !r.UTime.Packed() && r.STime.Packed() { // Type Rusage doesn't have a packed layout in memory, fall back to MarshalBytes. buf := cc.CopyScratchBuffer(r.SizeBytes()) // escapes: okay. r.MarshalBytes(buf) // escapes: fallback. @@ -6314,12 +6314,12 @@ func (s *SemidDS) UnmarshalBytes(src []byte) { // Packed implements marshal.Marshallable.Packed. //go:nosplit func (s *SemidDS) Packed() bool { - return s.SemCTime.Packed() && s.SemPerm.Packed() && s.SemOTime.Packed() + return s.SemPerm.Packed() && s.SemOTime.Packed() && s.SemCTime.Packed() } // MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe. func (s *SemidDS) MarshalUnsafe(dst []byte) { - if s.SemPerm.Packed() && s.SemOTime.Packed() && s.SemCTime.Packed() { + if s.SemCTime.Packed() && s.SemPerm.Packed() && s.SemOTime.Packed() { safecopy.CopyIn(dst, unsafe.Pointer(s)) } else { // Type SemidDS doesn't have a packed layout in memory, fallback to MarshalBytes. @@ -6340,7 +6340,7 @@ func (s *SemidDS) UnmarshalUnsafe(src []byte) { // CopyOutN implements marshal.Marshallable.CopyOutN. //go:nosplit func (s *SemidDS) CopyOutN(cc marshal.CopyContext, addr usermem.Addr, limit int) (int, error) { - if !s.SemPerm.Packed() && s.SemOTime.Packed() && s.SemCTime.Packed() { + if !s.SemOTime.Packed() && s.SemCTime.Packed() && s.SemPerm.Packed() { // Type SemidDS doesn't have a packed layout in memory, fall back to MarshalBytes. buf := cc.CopyScratchBuffer(s.SizeBytes()) // escapes: okay. s.MarshalBytes(buf) // escapes: fallback. @@ -6396,7 +6396,7 @@ func (s *SemidDS) CopyIn(cc marshal.CopyContext, addr usermem.Addr) (int, error) // WriteTo implements io.WriterTo.WriteTo. func (s *SemidDS) WriteTo(writer io.Writer) (int64, error) { - if !s.SemPerm.Packed() && s.SemOTime.Packed() && s.SemCTime.Packed() { + if !s.SemCTime.Packed() && s.SemPerm.Packed() && s.SemOTime.Packed() { // Type SemidDS doesn't have a packed layout in memory, fall back to MarshalBytes. buf := make([]byte, s.SizeBytes()) s.MarshalBytes(buf) @@ -6666,7 +6666,7 @@ func (s *ShmidDS) Packed() bool { // MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe. func (s *ShmidDS) MarshalUnsafe(dst []byte) { - if s.ShmDtime.Packed() && s.ShmCtime.Packed() && s.ShmPerm.Packed() && s.ShmAtime.Packed() { + if s.ShmAtime.Packed() && s.ShmDtime.Packed() && s.ShmCtime.Packed() && s.ShmPerm.Packed() { safecopy.CopyIn(dst, unsafe.Pointer(s)) } else { // Type ShmidDS doesn't have a packed layout in memory, fallback to MarshalBytes. @@ -6687,7 +6687,7 @@ func (s *ShmidDS) UnmarshalUnsafe(src []byte) { // CopyOutN implements marshal.Marshallable.CopyOutN. //go:nosplit func (s *ShmidDS) CopyOutN(cc marshal.CopyContext, addr usermem.Addr, limit int) (int, error) { - if !s.ShmCtime.Packed() && s.ShmPerm.Packed() && s.ShmAtime.Packed() && s.ShmDtime.Packed() { + if !s.ShmAtime.Packed() && s.ShmDtime.Packed() && s.ShmCtime.Packed() && s.ShmPerm.Packed() { // Type ShmidDS doesn't have a packed layout in memory, fall back to MarshalBytes. buf := cc.CopyScratchBuffer(s.SizeBytes()) // escapes: okay. s.MarshalBytes(buf) // escapes: fallback. @@ -8914,7 +8914,7 @@ func (i *ItimerVal) MarshalUnsafe(dst []byte) { // UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe. func (i *ItimerVal) UnmarshalUnsafe(src []byte) { - if i.Value.Packed() && i.Interval.Packed() { + if i.Interval.Packed() && i.Value.Packed() { safecopy.CopyOut(unsafe.Pointer(i), src) } else { // Type ItimerVal doesn't have a packed layout in memory, fallback to UnmarshalBytes. @@ -9143,7 +9143,7 @@ func (t *Tms) MarshalUnsafe(dst []byte) { // UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe. func (t *Tms) UnmarshalUnsafe(src []byte) { - if t.UTime.Packed() && t.STime.Packed() && t.CUTime.Packed() && t.CSTime.Packed() { + if t.CUTime.Packed() && t.CSTime.Packed() && t.UTime.Packed() && t.STime.Packed() { safecopy.CopyOut(unsafe.Pointer(t), src) } else { // Type Tms doesn't have a packed layout in memory, fallback to UnmarshalBytes. @@ -9184,7 +9184,7 @@ func (t *Tms) CopyOut(cc marshal.CopyContext, addr usermem.Addr) (int, error) { // CopyIn implements marshal.Marshallable.CopyIn. //go:nosplit func (t *Tms) CopyIn(cc marshal.CopyContext, addr usermem.Addr) (int, error) { - if !t.UTime.Packed() && t.STime.Packed() && t.CUTime.Packed() && t.CSTime.Packed() { + if !t.STime.Packed() && t.CUTime.Packed() && t.CSTime.Packed() && t.UTime.Packed() { // Type Tms doesn't have a packed layout in memory, fall back to UnmarshalBytes. buf := cc.CopyScratchBuffer(t.SizeBytes()) // escapes: okay. length, err := cc.CopyInBytes(addr, buf) // escapes: okay. @@ -9210,7 +9210,7 @@ func (t *Tms) CopyIn(cc marshal.CopyContext, addr usermem.Addr) (int, error) { // WriteTo implements io.WriterTo.WriteTo. func (t *Tms) WriteTo(writer io.Writer) (int64, error) { - if !t.UTime.Packed() && t.STime.Packed() && t.CUTime.Packed() && t.CSTime.Packed() { + if !t.CSTime.Packed() && t.UTime.Packed() && t.STime.Packed() && t.CUTime.Packed() { // Type Tms doesn't have a packed layout in memory, fall back to MarshalBytes. buf := make([]byte, t.SizeBytes()) t.MarshalBytes(buf) diff --git a/pkg/abi/linux/linux_amd64_abi_autogen_unsafe.go b/pkg/abi/linux/linux_amd64_abi_autogen_unsafe.go index 1c0f6230b..8328a61f6 100644 --- a/pkg/abi/linux/linux_amd64_abi_autogen_unsafe.go +++ b/pkg/abi/linux/linux_amd64_abi_autogen_unsafe.go @@ -288,12 +288,12 @@ func (s *Stat) UnmarshalBytes(src []byte) { // Packed implements marshal.Marshallable.Packed. //go:nosplit func (s *Stat) Packed() bool { - return s.CTime.Packed() && s.ATime.Packed() && s.MTime.Packed() + return s.ATime.Packed() && s.MTime.Packed() && s.CTime.Packed() } // MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe. func (s *Stat) MarshalUnsafe(dst []byte) { - if s.MTime.Packed() && s.CTime.Packed() && s.ATime.Packed() { + if s.ATime.Packed() && s.MTime.Packed() && s.CTime.Packed() { safecopy.CopyIn(dst, unsafe.Pointer(s)) } else { // Type Stat doesn't have a packed layout in memory, fallback to MarshalBytes. @@ -370,7 +370,7 @@ func (s *Stat) CopyIn(cc marshal.CopyContext, addr usermem.Addr) (int, error) { // WriteTo implements io.WriterTo.WriteTo. func (s *Stat) WriteTo(writer io.Writer) (int64, error) { - if !s.MTime.Packed() && s.CTime.Packed() && s.ATime.Packed() { + if !s.ATime.Packed() && s.MTime.Packed() && s.CTime.Packed() { // Type Stat doesn't have a packed layout in memory, fall back to MarshalBytes. buf := make([]byte, s.SizeBytes()) s.MarshalBytes(buf) diff --git a/pkg/abi/linux/linux_arm64_abi_autogen_unsafe.go b/pkg/abi/linux/linux_arm64_abi_autogen_unsafe.go index 546fdd50f..bcf5496c0 100644 --- a/pkg/abi/linux/linux_arm64_abi_autogen_unsafe.go +++ b/pkg/abi/linux/linux_arm64_abi_autogen_unsafe.go @@ -351,7 +351,7 @@ func (s *Stat) CopyOut(cc marshal.CopyContext, addr usermem.Addr) (int, error) { // CopyIn implements marshal.Marshallable.CopyIn. //go:nosplit func (s *Stat) CopyIn(cc marshal.CopyContext, addr usermem.Addr) (int, error) { - if !s.MTime.Packed() && s.CTime.Packed() && s.ATime.Packed() { + if !s.ATime.Packed() && s.MTime.Packed() && s.CTime.Packed() { // Type Stat doesn't have a packed layout in memory, fall back to UnmarshalBytes. buf := cc.CopyScratchBuffer(s.SizeBytes()) // escapes: okay. length, err := cc.CopyInBytes(addr, buf) // escapes: okay. @@ -377,7 +377,7 @@ func (s *Stat) CopyIn(cc marshal.CopyContext, addr usermem.Addr) (int, error) { // WriteTo implements io.WriterTo.WriteTo. func (s *Stat) WriteTo(writer io.Writer) (int64, error) { - if !s.MTime.Packed() && s.CTime.Packed() && s.ATime.Packed() { + if !s.ATime.Packed() && s.MTime.Packed() && s.CTime.Packed() { // Type Stat doesn't have a packed layout in memory, fall back to MarshalBytes. buf := make([]byte, s.SizeBytes()) s.MarshalBytes(buf) diff --git a/pkg/buffer/buffer.go b/pkg/buffer/buffer.go index c6d089fd9..311808ae9 100644 --- a/pkg/buffer/buffer.go +++ b/pkg/buffer/buffer.go @@ -14,36 +14,26 @@ // Package buffer provides the implementation of a buffer view. // -// A view is an flexible buffer, backed by a pool, supporting the safecopy -// operations natively as well as the ability to grow via either prepend or -// append, as well as shrink. +// A view is an flexible buffer, supporting the safecopy operations natively as +// well as the ability to grow via either prepend or append, as well as shrink. package buffer -import ( - "sync" -) - -const bufferSize = 8144 // See below. - // buffer encapsulates a queueable byte buffer. // -// Note that the total size is slightly less than two pages. This is done -// intentionally to ensure that the buffer object aligns with runtime -// internals. We have no hard size or alignment requirements. This two page -// size will effectively minimize internal fragmentation, but still have a -// large enough chunk to limit excessive segmentation. -// // +stateify savable type buffer struct { - data [bufferSize]byte + data []byte read int write int bufferEntry } -// reset resets internal data. -// -// This must be called before returning the buffer to the pool. +// init performs in-place initialization for zero value. +func (b *buffer) init(size int) { + b.data = make([]byte, size) +} + +// Reset resets read and write locations, effectively emptying the buffer. func (b *buffer) Reset() { b.read = 0 b.write = 0 @@ -85,10 +75,3 @@ func (b *buffer) WriteMove(n int) { func (b *buffer) WriteSlice() []byte { return b.data[b.write:] } - -// bufferPool is a pool for buffers. -var bufferPool = sync.Pool{ - New: func() interface{} { - return new(buffer) - }, -} diff --git a/pkg/buffer/buffer_state_autogen.go b/pkg/buffer/buffer_state_autogen.go index 33887cb66..8ba19e5f9 100644 --- a/pkg/buffer/buffer_state_autogen.go +++ b/pkg/buffer/buffer_state_autogen.go @@ -90,6 +90,31 @@ func (x *bufferEntry) StateLoad(m state.Source) { m.Load(1, &x.prev) } +func (x *pool) StateTypeName() string { + return "pkg/buffer.pool" +} + +func (x *pool) StateFields() []string { + return []string{ + "bufferSize", + "embeddedStorage", + } +} + +func (x *pool) beforeSave() {} + +func (x *pool) StateSave(m state.Sink) { + x.beforeSave() + m.Save(0, &x.bufferSize) + m.Save(1, &x.embeddedStorage) +} + +func (x *pool) StateLoad(m state.Source) { + m.Load(0, &x.bufferSize) + m.LoadWait(1, &x.embeddedStorage) + m.AfterLoad(x.afterLoad) +} + func (x *View) StateTypeName() string { return "pkg/buffer.View" } @@ -98,6 +123,7 @@ func (x *View) StateFields() []string { return []string{ "data", "size", + "pool", } } @@ -107,6 +133,7 @@ func (x *View) StateSave(m state.Sink) { x.beforeSave() m.Save(0, &x.data) m.Save(1, &x.size) + m.Save(2, &x.pool) } func (x *View) afterLoad() {} @@ -114,11 +141,13 @@ func (x *View) afterLoad() {} func (x *View) StateLoad(m state.Source) { m.Load(0, &x.data) m.Load(1, &x.size) + m.Load(2, &x.pool) } func init() { state.Register((*buffer)(nil)) state.Register((*bufferList)(nil)) state.Register((*bufferEntry)(nil)) + state.Register((*pool)(nil)) state.Register((*View)(nil)) } diff --git a/pkg/buffer/pool.go b/pkg/buffer/pool.go new file mode 100644 index 000000000..7ad6132ab --- /dev/null +++ b/pkg/buffer/pool.go @@ -0,0 +1,83 @@ +// Copyright 2020 The gVisor Authors. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package buffer + +const ( + // embeddedCount is the number of buffer structures embedded in the pool. It + // is also the number for overflow allocations. + embeddedCount = 8 + + // defaultBufferSize is the default size for each underlying storage buffer. + // + // It is slightly less than two pages. This is done intentionally to ensure + // that the buffer object aligns with runtime internals. This two page size + // will effectively minimize internal fragmentation, but still have a large + // enough chunk to limit excessive segmentation. + defaultBufferSize = 8144 +) + +// pool allocates buffer. +// +// It contains an embedded buffer storage for fast path when the number of +// buffers needed is small. +// +// +stateify savable +type pool struct { + bufferSize int + avail []buffer `state:"nosave"` + embeddedStorage [embeddedCount]buffer `state:"wait"` +} + +// get gets a new buffer from p. +func (p *pool) get() *buffer { + if p.avail == nil { + p.avail = p.embeddedStorage[:] + } + if len(p.avail) == 0 { + p.avail = make([]buffer, embeddedCount) + } + if p.bufferSize <= 0 { + p.bufferSize = defaultBufferSize + } + buf := &p.avail[0] + buf.init(p.bufferSize) + p.avail = p.avail[1:] + return buf +} + +// put releases buf. +func (p *pool) put(buf *buffer) { + // Remove reference to the underlying storage, allowing it to be garbage + // collected. + buf.data = nil +} + +// setBufferSize sets the size of underlying storage buffer for future +// allocations. It can be called at any time. +func (p *pool) setBufferSize(size int) { + p.bufferSize = size +} + +// afterLoad is invoked by stateify. +func (p *pool) afterLoad() { + // S/R does not save subslice into embeddedStorage correctly. Restore + // available portion of embeddedStorage manually. Restore as nil if none used. + for i := len(p.embeddedStorage); i > 0; i-- { + if p.embeddedStorage[i-1].data != nil { + p.avail = p.embeddedStorage[i:] + break + } + } +} diff --git a/pkg/buffer/safemem.go b/pkg/buffer/safemem.go index b789e56e9..8b42575b4 100644 --- a/pkg/buffer/safemem.go +++ b/pkg/buffer/safemem.go @@ -44,7 +44,7 @@ func (v *View) WriteFromSafememReader(r safemem.Reader, count uint64) (uint64, e // Need at least one buffer. firstBuf := v.data.Back() if firstBuf == nil { - firstBuf = bufferPool.Get().(*buffer) + firstBuf = v.pool.get() v.data.PushBack(firstBuf) } @@ -56,7 +56,7 @@ func (v *View) WriteFromSafememReader(r safemem.Reader, count uint64) (uint64, e count -= l blocks = append(blocks, firstBuf.WriteBlock()) for count > 0 { - emptyBuf := bufferPool.Get().(*buffer) + emptyBuf := v.pool.get() v.data.PushBack(emptyBuf) block := emptyBuf.WriteBlock().TakeFirst64(count) count -= uint64(block.Len()) diff --git a/pkg/buffer/view.go b/pkg/buffer/view.go index e6901eadb..00652d675 100644 --- a/pkg/buffer/view.go +++ b/pkg/buffer/view.go @@ -27,6 +27,7 @@ import ( type View struct { data bufferList size int64 + pool pool } // TrimFront removes the first count bytes from the buffer. @@ -81,7 +82,7 @@ func (v *View) advanceRead(count int64) { buf = buf.Next() // Iterate. v.data.Remove(oldBuf) oldBuf.Reset() - bufferPool.Put(oldBuf) + v.pool.put(oldBuf) // Update counts. count -= sz @@ -118,7 +119,7 @@ func (v *View) Truncate(length int64) { // Drop the buffer completely; see above. v.data.Remove(buf) buf.Reset() - bufferPool.Put(buf) + v.pool.put(buf) v.size -= sz } } @@ -137,7 +138,7 @@ func (v *View) Grow(length int64, zero bool) { // Is there some space in the last buffer? if buf == nil || buf.Full() { - buf = bufferPool.Get().(*buffer) + buf = v.pool.get() v.data.PushBack(buf) } @@ -181,7 +182,7 @@ func (v *View) Prepend(data []byte) { for len(data) > 0 { // Do we need an empty buffer? - buf := bufferPool.Get().(*buffer) + buf := v.pool.get() v.data.PushFront(buf) // The buffer is empty; copy last chunk. @@ -211,7 +212,7 @@ func (v *View) Append(data []byte) { // Ensure there's a buffer with space. if buf == nil || buf.Full() { - buf = bufferPool.Get().(*buffer) + buf = v.pool.get() v.data.PushBack(buf) } @@ -297,7 +298,7 @@ func (v *View) WriteFromReader(r io.Reader, count int64) (int64, error) { // Ensure we have an empty buffer. if buf == nil || buf.Full() { - buf = bufferPool.Get().(*buffer) + buf = v.pool.get() v.data.PushBack(buf) } diff --git a/pkg/sentry/fsimpl/devpts/root_inode_refs.go b/pkg/sentry/fsimpl/devpts/root_inode_refs.go index 4abb66431..051801202 100644 --- a/pkg/sentry/fsimpl/devpts/root_inode_refs.go +++ b/pkg/sentry/fsimpl/devpts/root_inode_refs.go @@ -2,10 +2,11 @@ package devpts import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/fsimpl/fuse/inode_refs.go b/pkg/sentry/fsimpl/fuse/inode_refs.go index 4fb4d4da7..6b9456e1d 100644 --- a/pkg/sentry/fsimpl/fuse/inode_refs.go +++ b/pkg/sentry/fsimpl/fuse/inode_refs.go @@ -2,10 +2,11 @@ package fuse import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/fsimpl/host/connected_endpoint_refs.go b/pkg/sentry/fsimpl/host/connected_endpoint_refs.go index 225f59782..babb3f664 100644 --- a/pkg/sentry/fsimpl/host/connected_endpoint_refs.go +++ b/pkg/sentry/fsimpl/host/connected_endpoint_refs.go @@ -2,10 +2,11 @@ package host import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/fsimpl/host/inode_refs.go b/pkg/sentry/fsimpl/host/inode_refs.go index 4075eae17..17f90ce4a 100644 --- a/pkg/sentry/fsimpl/host/inode_refs.go +++ b/pkg/sentry/fsimpl/host/inode_refs.go @@ -2,10 +2,11 @@ package host import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/fsimpl/kernfs/dentry_refs.go b/pkg/sentry/fsimpl/kernfs/dentry_refs.go index f99d4941a..79863b3bc 100644 --- a/pkg/sentry/fsimpl/kernfs/dentry_refs.go +++ b/pkg/sentry/fsimpl/kernfs/dentry_refs.go @@ -2,10 +2,11 @@ package kernfs import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/fsimpl/kernfs/static_directory_refs.go b/pkg/sentry/fsimpl/kernfs/static_directory_refs.go index 2b258010e..478b04bdd 100644 --- a/pkg/sentry/fsimpl/kernfs/static_directory_refs.go +++ b/pkg/sentry/fsimpl/kernfs/static_directory_refs.go @@ -2,10 +2,11 @@ package kernfs import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/fsimpl/proc/fd_dir_inode_refs.go b/pkg/sentry/fsimpl/proc/fd_dir_inode_refs.go index 467c32752..9431c1506 100644 --- a/pkg/sentry/fsimpl/proc/fd_dir_inode_refs.go +++ b/pkg/sentry/fsimpl/proc/fd_dir_inode_refs.go @@ -2,10 +2,11 @@ package proc import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/fsimpl/proc/fd_info_dir_inode_refs.go b/pkg/sentry/fsimpl/proc/fd_info_dir_inode_refs.go index 3fcda0948..872b20eb0 100644 --- a/pkg/sentry/fsimpl/proc/fd_info_dir_inode_refs.go +++ b/pkg/sentry/fsimpl/proc/fd_info_dir_inode_refs.go @@ -2,10 +2,11 @@ package proc import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/fsimpl/proc/subtasks_inode_refs.go b/pkg/sentry/fsimpl/proc/subtasks_inode_refs.go index 2da6801c2..c6d9b3522 100644 --- a/pkg/sentry/fsimpl/proc/subtasks_inode_refs.go +++ b/pkg/sentry/fsimpl/proc/subtasks_inode_refs.go @@ -2,10 +2,11 @@ package proc import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/fsimpl/proc/task_inode_refs.go b/pkg/sentry/fsimpl/proc/task_inode_refs.go index b6e19844c..714488450 100644 --- a/pkg/sentry/fsimpl/proc/task_inode_refs.go +++ b/pkg/sentry/fsimpl/proc/task_inode_refs.go @@ -2,10 +2,11 @@ package proc import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/fsimpl/proc/tasks_inode_refs.go b/pkg/sentry/fsimpl/proc/tasks_inode_refs.go index 6207364e4..22d9cc488 100644 --- a/pkg/sentry/fsimpl/proc/tasks_inode_refs.go +++ b/pkg/sentry/fsimpl/proc/tasks_inode_refs.go @@ -2,10 +2,11 @@ package proc import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/fsimpl/sys/dir_refs.go b/pkg/sentry/fsimpl/sys/dir_refs.go index 9d15d4c80..89609b198 100644 --- a/pkg/sentry/fsimpl/sys/dir_refs.go +++ b/pkg/sentry/fsimpl/sys/dir_refs.go @@ -2,10 +2,11 @@ package sys import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/fsimpl/tmpfs/inode_refs.go b/pkg/sentry/fsimpl/tmpfs/inode_refs.go index ff5e99c52..dbf0b2766 100644 --- a/pkg/sentry/fsimpl/tmpfs/inode_refs.go +++ b/pkg/sentry/fsimpl/tmpfs/inode_refs.go @@ -2,10 +2,11 @@ package tmpfs import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/kernel/fd_table_refs.go b/pkg/sentry/kernel/fd_table_refs.go index a630289c9..ecba138ac 100644 --- a/pkg/sentry/kernel/fd_table_refs.go +++ b/pkg/sentry/kernel/fd_table_refs.go @@ -2,10 +2,11 @@ package kernel import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/kernel/fs_context_refs.go b/pkg/sentry/kernel/fs_context_refs.go index e8bb1e6ee..fb2fde971 100644 --- a/pkg/sentry/kernel/fs_context_refs.go +++ b/pkg/sentry/kernel/fs_context_refs.go @@ -2,10 +2,11 @@ package kernel import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/kernel/process_group_refs.go b/pkg/sentry/kernel/process_group_refs.go index 4b257d548..4ed6e6458 100644 --- a/pkg/sentry/kernel/process_group_refs.go +++ b/pkg/sentry/kernel/process_group_refs.go @@ -2,10 +2,11 @@ package kernel import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/kernel/seqatomic_taskgoroutineschedinfo_unsafe.go b/pkg/sentry/kernel/seqatomic_taskgoroutineschedinfo_unsafe.go index 4e10436e6..90148bbb2 100644 --- a/pkg/sentry/kernel/seqatomic_taskgoroutineschedinfo_unsafe.go +++ b/pkg/sentry/kernel/seqatomic_taskgoroutineschedinfo_unsafe.go @@ -1,11 +1,11 @@ package kernel import ( + "fmt" "reflect" "strings" "unsafe" - "fmt" "gvisor.dev/gvisor/pkg/sync" ) diff --git a/pkg/sentry/kernel/session_refs.go b/pkg/sentry/kernel/session_refs.go index 204fdd060..f2e1bb797 100644 --- a/pkg/sentry/kernel/session_refs.go +++ b/pkg/sentry/kernel/session_refs.go @@ -2,10 +2,11 @@ package kernel import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/kernel/shm/shm_refs.go b/pkg/sentry/kernel/shm/shm_refs.go index 4bffdd0b3..51e07d0b3 100644 --- a/pkg/sentry/kernel/shm/shm_refs.go +++ b/pkg/sentry/kernel/shm/shm_refs.go @@ -2,10 +2,11 @@ package shm import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/mm/aio_mappable_refs.go b/pkg/sentry/mm/aio_mappable_refs.go index 141747137..b99909f07 100644 --- a/pkg/sentry/mm/aio_mappable_refs.go +++ b/pkg/sentry/mm/aio_mappable_refs.go @@ -2,10 +2,11 @@ package mm import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/mm/special_mappable_refs.go b/pkg/sentry/mm/special_mappable_refs.go index 0921a5d18..035bbe690 100644 --- a/pkg/sentry/mm/special_mappable_refs.go +++ b/pkg/sentry/mm/special_mappable_refs.go @@ -2,10 +2,11 @@ package mm import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/platform/ring0/defs_impl_arm64.go b/pkg/sentry/platform/ring0/defs_impl_arm64.go index 78547069f..f567ef868 100644 --- a/pkg/sentry/platform/ring0/defs_impl_arm64.go +++ b/pkg/sentry/platform/ring0/defs_impl_arm64.go @@ -1,10 +1,10 @@ package ring0 import ( - "gvisor.dev/gvisor/pkg/sentry/arch" "gvisor.dev/gvisor/pkg/sentry/platform/ring0/pagetables" "fmt" + "gvisor.dev/gvisor/pkg/sentry/arch" "gvisor.dev/gvisor/pkg/usermem" "io" "reflect" diff --git a/pkg/sentry/socket/unix/socket_refs.go b/pkg/sentry/socket/unix/socket_refs.go index 39aaedc7f..dababb85f 100644 --- a/pkg/sentry/socket/unix/socket_refs.go +++ b/pkg/sentry/socket/unix/socket_refs.go @@ -2,10 +2,11 @@ package unix import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/socket/unix/transport/queue_refs.go b/pkg/sentry/socket/unix/transport/queue_refs.go index 4c3dcd13f..0d4e34988 100644 --- a/pkg/sentry/socket/unix/transport/queue_refs.go +++ b/pkg/sentry/socket/unix/transport/queue_refs.go @@ -2,10 +2,11 @@ package transport import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/time/seqatomic_parameters_unsafe.go b/pkg/sentry/time/seqatomic_parameters_unsafe.go index 5eb560f57..2cb001080 100644 --- a/pkg/sentry/time/seqatomic_parameters_unsafe.go +++ b/pkg/sentry/time/seqatomic_parameters_unsafe.go @@ -1,11 +1,11 @@ package time import ( + "fmt" "reflect" "strings" "unsafe" - "fmt" "gvisor.dev/gvisor/pkg/sync" ) diff --git a/pkg/sentry/vfs/file_description_refs.go b/pkg/sentry/vfs/file_description_refs.go index 6c7747259..bdd7e6554 100644 --- a/pkg/sentry/vfs/file_description_refs.go +++ b/pkg/sentry/vfs/file_description_refs.go @@ -2,10 +2,11 @@ package vfs import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/vfs/filesystem_refs.go b/pkg/sentry/vfs/filesystem_refs.go index 96f681831..38a9a986f 100644 --- a/pkg/sentry/vfs/filesystem_refs.go +++ b/pkg/sentry/vfs/filesystem_refs.go @@ -2,10 +2,11 @@ package vfs import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/sentry/vfs/mount_namespace_refs.go b/pkg/sentry/vfs/mount_namespace_refs.go index 4c422c81f..63285fb8e 100644 --- a/pkg/sentry/vfs/mount_namespace_refs.go +++ b/pkg/sentry/vfs/mount_namespace_refs.go @@ -2,10 +2,11 @@ package vfs import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so diff --git a/pkg/tcpip/link/tun/tun_endpoint_refs.go b/pkg/tcpip/link/tun/tun_endpoint_refs.go index 9a38142f5..e0595429c 100644 --- a/pkg/tcpip/link/tun/tun_endpoint_refs.go +++ b/pkg/tcpip/link/tun/tun_endpoint_refs.go @@ -2,10 +2,11 @@ package tun import ( "fmt" - "gvisor.dev/gvisor/pkg/log" - refs_vfs1 "gvisor.dev/gvisor/pkg/refs" "runtime" "sync/atomic" + + "gvisor.dev/gvisor/pkg/log" + refs_vfs1 "gvisor.dev/gvisor/pkg/refs" ) // ownerType is used to customize logging. Note that we use a pointer to T so |