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authorgVisor bot <gvisor-bot@google.com>2020-09-01 21:46:57 +0000
committergVisor bot <gvisor-bot@google.com>2020-09-01 21:46:57 +0000
commitdbd886176ac62b526c81fcda13da63c74d46be98 (patch)
tree95829e05bd49451d8993a7cfcbc07465a13164d2 /pkg/sentry/fs/tty/dir.go
parent302245568e5f5286ac6cce38991ea3b9a17a64b7 (diff)
parent2eaf54dd597d8aaa56ad6274e0c1e585d9b9c063 (diff)
Merge release-20200818.0-102-g2eaf54dd5 (automated)
Diffstat (limited to 'pkg/sentry/fs/tty/dir.go')
-rw-r--r--pkg/sentry/fs/tty/dir.go46
1 files changed, 23 insertions, 23 deletions
diff --git a/pkg/sentry/fs/tty/dir.go b/pkg/sentry/fs/tty/dir.go
index 463f6189e..c2da80bc2 100644
--- a/pkg/sentry/fs/tty/dir.go
+++ b/pkg/sentry/fs/tty/dir.go
@@ -37,14 +37,14 @@ import (
// This indirectly manages all terminals within the mount.
//
// New Terminals are created by masterInodeOperations.GetFile, which registers
-// the slave Inode in the this directory for discovery via Lookup/Readdir. The
-// slave inode is unregistered when the master file is Released, as the slave
+// the replica Inode in the this directory for discovery via Lookup/Readdir. The
+// replica inode is unregistered when the master file is Released, as the replica
// is no longer discoverable at that point.
//
// References on the underlying Terminal are held by masterFileOperations and
-// slaveInodeOperations.
+// replicaInodeOperations.
//
-// masterInodeOperations and slaveInodeOperations hold a pointer to
+// masterInodeOperations and replicaInodeOperations hold a pointer to
// dirInodeOperations, which is reference counted by the refcount their
// corresponding Dirents hold on their parent (this directory).
//
@@ -76,16 +76,16 @@ type dirInodeOperations struct {
// master is the master PTY inode.
master *fs.Inode
- // slaves contains the slave inodes reachable from the directory.
+ // replicas contains the replica inodes reachable from the directory.
//
- // A new slave is added by allocateTerminal and is removed by
+ // A new replica is added by allocateTerminal and is removed by
// masterFileOperations.Release.
//
- // A reference is held on every slave in the map.
- slaves map[uint32]*fs.Inode
+ // A reference is held on every replica in the map.
+ replicas map[uint32]*fs.Inode
// dentryMap is a SortedDentryMap used to implement Readdir containing
- // the master and all entries in slaves.
+ // the master and all entries in replicas.
dentryMap *fs.SortedDentryMap
// next is the next pty index to use.
@@ -101,7 +101,7 @@ func newDir(ctx context.Context, m *fs.MountSource) *fs.Inode {
d := &dirInodeOperations{
InodeSimpleAttributes: fsutil.NewInodeSimpleAttributes(ctx, fs.RootOwner, fs.FilePermsFromMode(0555), linux.DEVPTS_SUPER_MAGIC),
msrc: m,
- slaves: make(map[uint32]*fs.Inode),
+ replicas: make(map[uint32]*fs.Inode),
dentryMap: fs.NewSortedDentryMap(nil),
}
// Linux devpts uses a default mode of 0000 for ptmx which can be
@@ -133,7 +133,7 @@ func (d *dirInodeOperations) Release(ctx context.Context) {
defer d.mu.Unlock()
d.master.DecRef(ctx)
- if len(d.slaves) != 0 {
+ if len(d.replicas) != 0 {
panic(fmt.Sprintf("devpts directory still contains active terminals: %+v", d))
}
}
@@ -149,14 +149,14 @@ func (d *dirInodeOperations) Lookup(ctx context.Context, dir *fs.Inode, name str
return fs.NewDirent(ctx, d.master, name), nil
}
- // Slave number?
+ // Replica number?
n, err := strconv.ParseUint(name, 10, 32)
if err != nil {
// Not found.
return nil, syserror.ENOENT
}
- s, ok := d.slaves[uint32(n)]
+ s, ok := d.replicas[uint32(n)]
if !ok {
return nil, syserror.ENOENT
}
@@ -236,7 +236,7 @@ func (d *dirInodeOperations) allocateTerminal(ctx context.Context) (*Terminal, e
return nil, syserror.ENOMEM
}
- if _, ok := d.slaves[n]; ok {
+ if _, ok := d.replicas[n]; ok {
panic(fmt.Sprintf("pty index collision; index %d already exists", n))
}
@@ -244,19 +244,19 @@ func (d *dirInodeOperations) allocateTerminal(ctx context.Context) (*Terminal, e
d.next++
// The reference returned by newTerminal is returned to the caller.
- // Take another for the slave inode.
+ // Take another for the replica inode.
t.IncRef()
// Create a pts node. The owner is based on the context that opens
// ptmx.
creds := auth.CredentialsFromContext(ctx)
uid, gid := creds.EffectiveKUID, creds.EffectiveKGID
- slave := newSlaveInode(ctx, d, t, fs.FileOwner{uid, gid}, fs.FilePermsFromMode(0666))
+ replica := newReplicaInode(ctx, d, t, fs.FileOwner{uid, gid}, fs.FilePermsFromMode(0666))
- d.slaves[n] = slave
+ d.replicas[n] = replica
d.dentryMap.Add(strconv.FormatUint(uint64(n), 10), fs.DentAttr{
- Type: slave.StableAttr.Type,
- InodeID: slave.StableAttr.InodeID,
+ Type: replica.StableAttr.Type,
+ InodeID: replica.StableAttr.InodeID,
})
return t, nil
@@ -267,18 +267,18 @@ func (d *dirInodeOperations) masterClose(ctx context.Context, t *Terminal) {
d.mu.Lock()
defer d.mu.Unlock()
- // The slave end disappears from the directory when the master end is
- // closed, even if the slave end is open elsewhere.
+ // The replica end disappears from the directory when the master end is
+ // closed, even if the replica end is open elsewhere.
//
// N.B. since we're using a backdoor method to remove a directory entry
// we won't properly fire inotify events like Linux would.
- s, ok := d.slaves[t.n]
+ s, ok := d.replicas[t.n]
if !ok {
panic(fmt.Sprintf("Terminal %+v doesn't exist in %+v?", t, d))
}
s.DecRef(ctx)
- delete(d.slaves, t.n)
+ delete(d.replicas, t.n)
d.dentryMap.Remove(strconv.FormatUint(uint64(t.n), 10))
}