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2020-04-10Merge release-20200323.0-122-g1798d6c (automated)gVisor bot
2020-04-10Remove TODO from kernel.StracerFabricio Voznika
The dependency strace=>kernel grew over time. strace also depends on task's FD table and FSContext. It could be fixed with some interfaces the other way, but then we're trading an interface for another, and kernel.Stracer is likely cleaner. Closes #155 PiperOrigin-RevId: 305909678
2020-04-10Merge release-20200323.0-119-g7812661 (automated)gVisor bot
2020-04-09Merge pull request #2253 from amscanne:nogogVisor bot
PiperOrigin-RevId: 305807868
2020-04-10Merge release-20200323.0-113-gc919534 (automated)gVisor bot
2020-04-09Replace type assertion with TaskFromContext.Ting-Yu Wang
This should fix panic at aio callback. PiperOrigin-RevId: 305798549
2020-04-10Merge release-20200323.0-112-g257225c (automated)gVisor bot
2020-04-09Downgrade VFS1-specific FIXME to a NOTE.Jamie Liu
PiperOrigin-RevId: 305794509
2020-04-09Merge release-20200323.0-110-g9f87502 (automated)gVisor bot
2020-04-09Remove TODOs from Async IOFabricio Voznika
Block and drain requests in io_destroy(2). Note the reason to create read-only mapping. PiperOrigin-RevId: 305786312
2020-04-09Merge release-20200323.0-107-g9a5e5ab (automated)gVisor bot
2020-04-09Merge release-20200323.0-103-g7928aa3 (automated)gVisor bot
2020-04-09Convert int and bool socket options to use GetSockOptInt and GetSockOptBoolAndrei Vagin
PiperOrigin-RevId: 305699233
2020-04-09Merge release-20200323.0-100-ga10389e (automated)gVisor bot
2020-04-08splice: cap splice calls to MAX_RW_COUNTAndrei Vagin
The Linux does the same. Reported-by: syzbot+e81716e8956e92e9d56b@syzkaller.appspotmail.com PiperOrigin-RevId: 305625439
2020-04-09Merge release-20200323.0-98-g0f75f72 (automated)gVisor bot
2020-04-08Don't call platform.AddressSpace.MapFile with no permissions.Jamie Liu
PiperOrigin-RevId: 305598136
2020-04-09Merge release-20200323.0-97-g6dd5a1f (automated)gVisor bot
2020-04-08Clean up TODOsFabricio Voznika
PiperOrigin-RevId: 305592245
2020-04-09Merge release-20200323.0-96-g981a587 (automated)gVisor bot
2020-04-08Remove InodeOperations FIXMEs that will be obsoleted by VFS2.Dean Deng
PiperOrigin-RevId: 305588941
2020-04-08Merge release-20200323.0-95-g357f136 (automated)gVisor bot
2020-04-08Handle utimes correctly for shared gofer filesystems.Dean Deng
Determine system time from within the sentry rather than relying on the remote filesystem to prevent inconsistencies. Resolve related TODOs; the time discrepancies in question don't exist anymore. PiperOrigin-RevId: 305557099
2020-04-08Merge release-20200323.0-93-gd8c0c1d (automated)gVisor bot
2020-04-08Do not hold FileDescription references in VFS2 procfs inodes.Jamie Liu
FileDescription references are side-effectual; for example, holding a reference on the write end of a pipe prevents reads from the read end from returning EOF. This change is consistent with Linux, but not VFS1; while VFS1 also has this bug, it's less visible there since VFS1 procfs disables caching. Updates #1195 PiperOrigin-RevId: 305545099
2020-04-08Enable SubprocessExited and SubprocessZombie for gVisorFabricio Voznika
Updates #164 PiperOrigin-RevId: 305544029
2020-04-08Fix unused result errors.Adin Scannell
This fixes a bug in the proc net directory. Updates #2243
2020-04-08Fix all printf formatting errors.Adin Scannell
Updates #2243
2020-04-08Fix all copy locks violations.Adin Scannell
This required minor restructuring of how system call tables were saved and restored, but it makes way more sense this way. Updates #2243
2020-04-07Make unlink tests pass with goferfsFabricio Voznika
Required directory checks were being skipped when there was no child cached. Now the code always loads the child file before unlinking it. Updates #1198 PiperOrigin-RevId: 305382323
2020-04-07Correctly distinguish between seekable and non-seekable host fds.Dean Deng
Check whether an fd is seekable by calling the seek syscall and examining the return value, instead of checking the file type, which is inaccurate. PiperOrigin-RevId: 305361593
2020-04-07Merge release-20200323.0-82-gd5ddb53 (automated)gVisor bot
2020-04-07Remove out-of-date TODOs.Ting-Yu Wang
We already have network namespace for netstack. PiperOrigin-RevId: 305341954
2020-04-07Make gofer.dentry.destroyLocked idempotentFabricio Voznika
gofer operations accumulate dentries touched in a slice to call checkCachingLocked on them when the operation is over. In case the same dentry is touched multiple times during the operation, checkCachingLocked, and consequently destroyLocked, may be called more than once for the same dentry. Updates #1198 PiperOrigin-RevId: 305276819
2020-04-06Merge release-20200323.0-75-gdd98fdd (automated)gVisor bot
2020-04-06Correctly implement magic symlinks in VFS2 procfs.Jamie Liu
Updates #1195 PiperOrigin-RevId: 305143567
2020-04-06Merge release-20200323.0-74-gf332a86 (automated)gVisor bot
2020-04-06Port timerfd to VFS2.Nicolas Lacasse
PiperOrigin-RevId: 305067208
2020-04-06Add socket files to tmpfs VFS2.Dean Deng
Updates #1476. PiperOrigin-RevId: 305024274
2020-04-06Merge release-20200323.0-71-g7482902 (automated)gVisor bot
2020-04-05Merge release-20200323.0-70-g24bee1c (automated)gVisor bot
2020-04-04Record VFS2 sockets in global socket map.Dean Deng
Updates #1476, #1478, #1484, #1485. PiperOrigin-RevId: 304845354
2020-04-04Merge release-20200323.0-69-gfc99a7e (automated)gVisor bot
2020-04-03Refactor software GSO code.Bhasker Hariharan
Software GSO implementation currently has a complicated code path with implicit assumptions that all packets to WritePackets carry same Data and it does this to avoid allocations on the path etc. But this makes it hard to reuse the WritePackets API. This change breaks all such assumptions by introducing a new Vectorised View API ReadToVV which can be used to cleanly split a VV into multiple independent VVs. Further this change also makes packet buffers linkable to form an intrusive list. This allows us to get rid of the array of packet buffers that are passed in the WritePackets API call and replace it with a list of packet buffers. While this code does introduce some more allocations in the benchmarks it doesn't cause any degradation. Updates #231 PiperOrigin-RevId: 304731742
2020-04-03Merge release-20200323.0-68-g5818663 (automated)gVisor bot
2020-04-03Add FileDescriptionImpl for Unix sockets.Dean Deng
This change involves several steps: - Refactor the VFS1 unix socket implementation to share methods between VFS1 and VFS2 where possible. Re-implement the rest. - Override the default PRead, Read, PWrite, Write, Ioctl, Release methods in FileDescriptionDefaultImpl. - Add functions to create and initialize a new Dentry/Inode and FileDescription for a Unix socket file. Updates #1476 PiperOrigin-RevId: 304689796
2020-04-03Merge release-20200323.0-67-ga943096 (automated)gVisor bot
2020-04-03Ensure EOF is handled propertly during splice.Adin Scannell
PiperOrigin-RevId: 304684417
2020-04-03Merge release-20200323.0-62-gdd3bc49 (automated)gVisor bot
2020-04-02Add NAME_MAX checks and update file timesFabricio Voznika
NAME_MAX should be enforced per filesystem implementation because other file systems may not have the same restriction. Gofer filesystem now keeps a reference to the kernel clock to avoid lookup in the Context on file access to update atime. Update access, modification, and status change times in tmpfs. Updates #1197, #1198. PiperOrigin-RevId: 304527148
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