CtxIPCNamespace is needed by mqfs package to be able to retreive an
IPCNamespace using ctx.Value. As ctx.Value compares keys as interfaces,
we need to use type kernel.contextID in package mqfs, which is not
possible due to circular depenedency, so move it to kernel/ipc instead.
Updates #136
Checks in Task.block() and Task.Value() are conditional on race detection being
enabled, since these functions are relatively hot. Checks in Task.SleepStart()
and Task.UninterruptibleSleepStart() are enabled unconditionally, since these
functions are not thought to lie on any critical paths, and misuse of these
functions is required for b/168241471 to manifest.
PiperOrigin-RevId: 342342175
All shm segments in an IPC namespace should be released once that namespace is
destroyed. Add reference counting to IPCNamespace so that once the last task
with a reference on it exits, we can trigger a destructor that will clean up
all shm segments that have not been explicitly freed by the application.
PiperOrigin-RevId: 337032977
In order to make sure all aio goroutines have stopped during S/R, a new
WaitGroup was added to TaskSet, analagous to runningGoroutines. This WaitGroup
is incremented with each aio goroutine, and waited on during kernel.Pause.
The old VFS1 aio code was changed to use this new WaitGroup, rather than
fs.Async. The only uses of fs.Async are now inode and mount Release operations,
which do not call fs.Async recursively. This fixes a lock-ordering violation
that can cause deadlocks.
Updates #1035.
PiperOrigin-RevId: 316689380
Because the abi will depend on the core types for marshalling (usermem,
context, safemem, safecopy), these need to be flattened from the sentry
directory. These packages contain no sentry-specific details.
PiperOrigin-RevId: 291811289
Based on the guidelines at
https://opensource.google.com/docs/releasing/authors/.
1. $ rg -l "Google LLC" | xargs sed -i 's/Google LLC.*/The gVisor Authors./'
2. Manual fixup of "Google Inc" references.
3. Add AUTHORS file. Authors may request to be added to this file.
4. Point netstack AUTHORS to gVisor AUTHORS. Drop CONTRIBUTORS.
Fixes#209
PiperOrigin-RevId: 245823212
Change-Id: I64530b24ad021a7d683137459cafc510f5ee1de9
Zyad A. Ali