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2020-08-06Merge release-20200804.0-34-g90021e775 (automated)gVisor bot
2020-08-06Merge release-20200804.0-33-gb918d9785 (automated)gVisor bot
2020-08-06Add reference counting utility to VFS2.Dean Deng
The utility has several differences from the VFS1 equivalent: - There are no weak references, which have a significant overhead - In order to print useful debug messages with the type of the reference- counted object, we use a generic Refs object with the owner type as a template parameter. In vfs1, this was accomplished by storing a type name and caller stack directly in the ref count (as in vfs1), which increases the struct size by 6x. (Note that the caller stack was needed because fs types like Dirent were shared by all fs implementations; in vfs2, each impl has its own data structures, so this is no longer necessary.) Updates #1486. PiperOrigin-RevId: 325271469
2020-08-06Merge release-20200804.0-32-g0d69bfa8a (automated)gVisor bot
2020-08-06Merge release-20200804.0-30-g72b528c84 (automated)gVisor bot
2020-08-06Merge release-20200804.0-29-g63447e5af (automated)gVisor bot
2020-08-06Only register /dev/net/tun if supported.Dean Deng
PiperOrigin-RevId: 325266487
2020-08-06Merge release-20200804.0-28-gfc4dd3ef4 (automated)gVisor bot
2020-08-06Join IPv4 all-systems group on NIC enableGhanan Gowripalan
Test: - stack_test.TestJoinLeaveMulticastOnNICEnableDisable - integration_test.TestIncomingMulticastAndBroadcast PiperOrigin-RevId: 325185259
2020-08-06Merge release-20200804.0-27-g35312a95c (automated)gVisor bot
2020-08-05Add loss recovery option for TCP.Nayana Bidari
/proc/sys/net/ipv4/tcp_recovery is used to enable RACK loss recovery in TCP. PiperOrigin-RevId: 325157807
2020-08-06Merge release-20200804.0-26-g7ed4b2b5a (automated)gVisor bot
2020-08-05Correctly decrement link counts in tmpfs rename operations.Dean Deng
When a directory is replaced by a rename operation, its link count should reach zero. We were missing the link from `dir/.` PiperOrigin-RevId: 325141730
2020-08-06Merge release-20200804.0-25-gce463c027 (automated)gVisor bot
2020-08-06Merge release-20200804.0-24-g90a2d4e82 (automated)gVisor bot
2020-08-05Support receiving broadcast IPv4 packetsGhanan Gowripalan
Test: integration_test.TestIncomingSubnetBroadcast PiperOrigin-RevId: 325135617
2020-08-05Merge release-20200804.0-23-g1403a88c6 (automated)gVisor bot
2020-08-05Release extra memfd reference.Dean Deng
PiperOrigin-RevId: 325122849
2020-08-05Merge release-20200804.0-22-ge7b232a5b (automated)gVisor bot
2020-08-05Prefer RLock over Lock in functions that don't need Lock().Bhasker Hariharan
Updates #231 PiperOrigin-RevId: 325097683
2020-08-05Merge release-20200804.0-21-g34d302cb8 (automated)gVisor bot
2020-08-05Merge release-20200804.0-19-g190b1e6bd (automated)gVisor bot
2020-08-05Stop profiling when the sentry exitsFabricio Voznika
Also removes `--profile-goroutine` because it's equivalent to `debug --stacks`. PiperOrigin-RevId: 325061502
2020-08-05Merge release-20200622.1-338-gd0127b23f (automated)gVisor bot
2020-08-05Merge release-20200622.1-337-ga2e129b54 (automated)gVisor bot
2020-08-05Add missing case in tmpfs.inode.direntType.Dean Deng
This was discovered by syzkaller. PiperOrigin-RevId: 325025193
2020-08-05Merge release-20200622.1-336-g0e6f7a12c (automated)gVisor bot
2020-08-04Update variables for implementation of RACK in TCPNayana Bidari
RACK (Recent Acknowledgement) is a new loss detection algorithm in TCP. These are the fields which should be stored on connections to implement RACK algorithm. PiperOrigin-RevId: 324948703
2020-08-05Merge release-20200622.1-335-g87ee3898f (automated)gVisor bot
2020-08-04Handle EOF in vfs2 sendfile.Dean Deng
Discovered by syzkaller. PiperOrigin-RevId: 324938438
2020-08-05Merge release-20200622.1-334-g102735bfb (automated)gVisor bot
2020-08-04Inline gofer.regularFileFD.pwriteLockedFabricio Voznika
Go compiler barely inlines anything, so inline by hand pwriteLocked since it's called from a single place. PiperOrigin-RevId: 324937734
2020-08-05Merge release-20200622.1-333-gb44408b40 (automated)gVisor bot
2020-08-04Automated rollback of changelist 324906582Dean Deng
PiperOrigin-RevId: 324931854
2020-08-05Merge release-20200622.1-332-g338f96b36 (automated)gVisor bot
2020-08-04Merge release-20200622.1-331-gbe7079578 (automated)gVisor bot
2020-08-04Merge release-20200622.1-330-g0ba702bd6 (automated)gVisor bot
2020-08-04Merge release-20200622.1-329-g00993130e (automated)gVisor bot
2020-08-04Use 1 fragmentation component per IP stackGhanan Gowripalan
This will help manage memory consumption by IP reassembly when receiving IP fragments on multiple network endpoints. Previously, each endpoint would cap memory consumption at 4MB, but with this change, each IP stack will cap memory consumption at 4MB. No behaviour changes. PiperOrigin-RevId: 324913904
2020-08-04Merge release-20200622.1-328-g0500f84b6 (automated)gVisor bot
2020-08-04Add reference counting utility to VFS2.Dean Deng
The utility has several differences from the VFS1 equivalent: - There are no weak references, which have a significant overhead - In order to print useful debug messages with the type of the reference- counted object, we use a generic Refs object with the owner type as a template parameter. In vfs1, this was accomplished by storing a type name and caller stack directly in the ref count (as in vfs1), which increases the struct size by 6x. (Note that the caller stack was needed because fs types like Dirent were shared by all fs implementations; in vfs2, each impl has its own data structures, so this is no longer necessary.) As an example, the utility is added to tmpfs.inode. Updates #1486. PiperOrigin-RevId: 324906582
2020-08-04Merge release-20200622.1-327-gaf2f45673 (automated)gVisor bot
2020-08-04Merge release-20200622.1-325-g12c2c6ae3 (automated)gVisor bot
2020-08-04Merge release-20200622.1-324-g7dfcf727a (automated)gVisor bot
2020-08-04Merge release-20200622.1-323-gd64ba89da (automated)gVisor bot
2020-08-04Internal change.gVisor bot
PiperOrigin-RevId: 324826968
2020-08-04Merge release-20200622.1-322-g1bdadbc4f (automated)gVisor bot
2020-08-04Merge release-20200622.1-321-g7142a86a2 (automated)gVisor bot
2020-08-04Internal change.gVisor bot
PiperOrigin-RevId: 324819246
2020-08-04Merge release-20200622.1-320-g9873b8ea3 (automated)gVisor bot
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