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2019-07-25Merge 83767574 (automated)gVisor bot
2019-07-24ext: filesystem boilerplate code.Ayush Ranjan
PiperOrigin-RevId: 259865366
2019-07-25Merge 417096f7 (automated)gVisor bot
2019-07-24ext: Add tests for root directory inode.Ayush Ranjan
PiperOrigin-RevId: 259856442
2019-07-24Merge 2ed832ff (automated)gVisor bot
2019-07-24ext: testing environment setup with VFS2 support.Ayush Ranjan
PiperOrigin-RevId: 259835948
2019-07-24Add support for a subnet prefix length on interface network addressesChris Kuiper
This allows the user code to add a network address with a subnet prefix length. The prefix length value is stored in the network endpoint and provided back to the user in the ProtocolAddress type. PiperOrigin-RevId: 259807693
2019-07-24Merge 7e38d643 (automated)gVisor bot
2019-07-23ext: Inode creation logic.Ayush Ranjan
PiperOrigin-RevId: 259666476
2019-07-24Merge d7bb79b6 (automated)gVisor bot
2019-07-23ext: Add ext2 and ext3 tiny images.Ayush Ranjan
PiperOrigin-RevId: 259657917
2019-07-23Merge bd770895 (automated)gVisor bot
2019-07-23ext: Added extent tree building logic.Ayush Ranjan
PiperOrigin-RevId: 259628657
2019-07-23Merge 04cbb13c (automated)gVisor bot
2019-07-23Give each container a distinct MountNamespace.Nicolas Lacasse
This keeps all container filesystem completely separate from eachother (including from the root container filesystem), and allows us to get rid of the "__runsc_containers__" directory. It also simplifies container startup/teardown as we don't have to muck around in the root container's filesystem. PiperOrigin-RevId: 259613346
2019-07-23Merge 57745994 (automated)gVisor bot
2019-07-23Merge 12c25656 (automated)gVisor bot
2019-07-23Merge 5ddf9adb (automated)gVisor bot
2019-07-22Merge d706922d (automated)gVisor bot
2019-07-22Merge pull request #571 from lubinszARM:pr_loadergVisor bot
PiperOrigin-RevId: 259427074
2019-07-22Merge a0a86bbb (automated)gVisor bot
2019-07-22kvm: fix race between machine.Put and machine.GetAndrei Vagin
m.available.Signal() has to be called under m.mu.RLock, otherwise it can race with machine.Get: m.Get | m.Put ------------------------------------- m.mu.Lock() | Seatching available vcpu| | m.available.Signal() m.available.Wait | PiperOrigin-RevId: 259394051
2019-07-22Merge fdac770f (automated)gVisor bot
2019-07-21Add ARM64 support to pkg/sentry/loaderBin Lu
Signed-off-by: Bin Lu <bin.lu@arm.com>
2019-07-19Merge 32e6be00 (automated)gVisor bot
2019-07-19Merge f544509c (automated)gVisor bot
2019-07-19Merge pull request #450 from Pixep:feature/add-clock-boottime-as-monotonicgVisor bot
PiperOrigin-RevId: 258996346
2019-07-19Merge 0e040ba6 (automated)gVisor bot
2019-07-18Merge eefa817c (automated)gVisor bot
2019-07-18net/tcp/setockopt: impelment setsockopt(fd, SOL_TCP, TCP_INQ)Andrei Vagin
PiperOrigin-RevId: 258859507
2019-07-18Merge 163ab5e9 (automated)gVisor bot
2019-07-18Sentry virtual filesystem, v2Jamie Liu
Major differences from the current ("v1") sentry VFS: - Path resolution is Filesystem-driven (FilesystemImpl methods call vfs.ResolvingPath methods) rather than VFS-driven (fs package owns a Dirent tree and calls fs.InodeOperations methods to populate it). This drastically improves performance, primarily by reducing overhead from inefficient synchronization and indirection. It also makes it possible to implement remote filesystem protocols that translate FS system calls into single RPCs, rather than having to make (at least) one RPC per path component, significantly reducing the latency of remote filesystems (especially during cold starts and for uncacheable shared filesystems). - Mounts are correctly represented as a separate check based on contextual state (current mount) rather than direct replacement in a fs.Dirent tree. This makes it possible to support (non-recursive) bind mounts and mount namespaces. Included in this CL is fsimpl/memfs, an incomplete in-memory filesystem that exists primarily to demonstrate intended filesystem implementation patterns and for benchmarking: BenchmarkVFS1TmpfsStat/1-6 3000000 497 ns/op BenchmarkVFS1TmpfsStat/2-6 2000000 676 ns/op BenchmarkVFS1TmpfsStat/3-6 2000000 904 ns/op BenchmarkVFS1TmpfsStat/8-6 1000000 1944 ns/op BenchmarkVFS1TmpfsStat/64-6 100000 14067 ns/op BenchmarkVFS1TmpfsStat/100-6 50000 21700 ns/op BenchmarkVFS2MemfsStat/1-6 10000000 197 ns/op BenchmarkVFS2MemfsStat/2-6 5000000 233 ns/op BenchmarkVFS2MemfsStat/3-6 5000000 268 ns/op BenchmarkVFS2MemfsStat/8-6 3000000 477 ns/op BenchmarkVFS2MemfsStat/64-6 500000 2592 ns/op BenchmarkVFS2MemfsStat/100-6 300000 4045 ns/op BenchmarkVFS1TmpfsMountStat/1-6 2000000 679 ns/op BenchmarkVFS1TmpfsMountStat/2-6 2000000 912 ns/op BenchmarkVFS1TmpfsMountStat/3-6 1000000 1113 ns/op BenchmarkVFS1TmpfsMountStat/8-6 1000000 2118 ns/op BenchmarkVFS1TmpfsMountStat/64-6 100000 14251 ns/op BenchmarkVFS1TmpfsMountStat/100-6 100000 22397 ns/op BenchmarkVFS2MemfsMountStat/1-6 5000000 317 ns/op BenchmarkVFS2MemfsMountStat/2-6 5000000 361 ns/op BenchmarkVFS2MemfsMountStat/3-6 5000000 387 ns/op BenchmarkVFS2MemfsMountStat/8-6 3000000 582 ns/op BenchmarkVFS2MemfsMountStat/64-6 500000 2699 ns/op BenchmarkVFS2MemfsMountStat/100-6 300000 4133 ns/op From this we can infer that, on this machine: - Constant cost for tmpfs stat() is ~160ns in VFS2 and ~280ns in VFS1. - Per-path-component cost is ~35ns in VFS2 and ~215ns in VFS1, a difference of about 6x. - The cost of crossing a mount boundary is about 80ns in VFS2 (MemfsMountStat/1 does approximately the same amount of work as MemfsStat/2, except that it also crosses a mount boundary). This is an inescapable cost of the separate mount lookup needed to support bind mounts and mount namespaces. PiperOrigin-RevId: 258853946
2019-07-17sys_time: Wrap comments to 80 columnsAdrien Leravat
2019-07-17Merge 6f7e2bb3 (automated)gVisor bot
2019-07-17Take copyMu in RevalidateMichael Pratt
copyMu is required to read child.overlay.upper. PiperOrigin-RevId: 258662209
2019-07-17Merge 84a59de5 (automated)gVisor bot
2019-07-17Separate O_DSYNC and O_SYNC.Jamie Liu
PiperOrigin-RevId: 258657913
2019-07-17ext: disklayout: extents support.Ayush Ranjan
PiperOrigin-RevId: 258657776
2019-07-17Merge 8e2ea9c1 (automated)gVisor bot
2019-07-17Merge 8e3e021a (automated)gVisor bot
2019-07-17ext: Filesystem init implementation.Ayush Ranjan
PiperOrigin-RevId: 258645957
2019-07-17Merge 609cd91e (automated)gVisor bot
2019-07-17Merge pull request #355 from zhuangel:mastergVisor bot
PiperOrigin-RevId: 258643966
2019-07-17Merge 542fbd01 (automated)gVisor bot
2019-07-17Fix race in FDTable.GetFDs().Bhasker Hariharan
PiperOrigin-RevId: 258635459
2019-07-17Merge 9f118913 (automated)gVisor bot
2019-07-17Add AF_UNIX, SOCK_RAW sockets, which exist for some reason.Kevin Krakauer
tcpdump creates these. PiperOrigin-RevId: 258611829
2019-07-17Merge 682fd2d6 (automated)gVisor bot
2019-07-17Merge pull request #533 from kevinGC:stub-dev-ttygVisor bot
PiperOrigin-RevId: 258607547
2019-07-17Merge ca829158 (automated)gVisor bot
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