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2020-09-11Merge release-20200907.0-34-g490e5c83b (automated)gVisor bot
2020-09-11Merge release-20200907.0-33-g9a5635eb1 (automated)gVisor bot
2020-09-11Merge release-20200907.0-31-g964447c8c (automated)gVisor bot
2020-09-10Merge release-20200818.0-154-g365545855 (automated)gVisor bot
2020-09-10Merge release-20200818.0-152-g7275f293d (automated)gVisor bot
2020-09-10Merge release-20200818.0-149-g9a003835f (automated)gVisor bot
2020-09-10Merge release-20200818.0-148-g1ab097b08 (automated)gVisor bot
2020-09-10Merge release-20200818.0-147-g644ac7b6b (automated)gVisor bot
2020-09-09Unlock VFS.mountMu before FilesystemImpl calls for ↵Jamie Liu
/proc/[pid]/{mounts,mountinfo}. Also move VFS.MakeSyntheticMountpoint() (which is a utility wrapper around VFS.MkdirAllAt(), itself a utility wrapper around VFS.MkdirAt()) to not be in the middle of the implementation of these proc files. Fixes #3878 PiperOrigin-RevId: 330843106
2020-09-10Merge release-20200818.0-146-g2c7df1a9a (automated)gVisor bot
2020-09-10Merge release-20200818.0-145-gf94995114 (automated)gVisor bot
2020-09-10Merge release-20200810.0-200-gc7d09207e (automated)gVisor bot
2020-09-09[vfs] overlayfs: Fix socket tests.Ayush Ranjan
- BindSocketThenOpen test was expecting the incorrect error when opening a socket. Fixed that. - VirtualFilesystem.BindEndpointAt should not require pop.Path.Begin.Ok() because the filesystem implementations do not need to walk to the parent dentry. This check also exists for MknodAt, MkdirAt, RmdirAt, SymlinkAt and UnlinkAt but those filesystem implementations also need to walk to the parent denty. So that check is valid. Added some syscall tests to test this. PiperOrigin-RevId: 330625220
2020-09-09Honor readonly flag for root mountFabricio Voznika
Updates #1487 PiperOrigin-RevId: 330580699
2020-09-09[vfs] Capitalize x in the {Get/Set/Remove/List}xattr functions.Ayush Ranjan
PiperOrigin-RevId: 330554450
2020-09-09[vfs] Implement xattr for overlayfs.Ayush Ranjan
PiperOrigin-RevId: 329825497
2020-09-09Implement StatFS for various VFS2 filesystems.Rahat Mahmood
This mainly involved enabling kernfs' client filesystems to provide a StatFS implementation. Fixes #3411, #3515. PiperOrigin-RevId: 329009864
2020-09-09Use new reference count utility throughout gvisor.Dean Deng
This uses the refs_vfs2 template in vfs2 as well as objects common to vfs1 and vfs2. Note that vfs1-only refcounts are not replaced, since vfs1 will be deleted soon anyway. The following structs now use the new tool, with leak check enabled: devpts:rootInode fuse:inode kernfs:Dentry kernfs:dir kernfs:readonlyDir kernfs:StaticDirectory proc:fdDirInode proc:fdInfoDirInode proc:subtasksInode proc:taskInode proc:tasksInode vfs:FileDescription vfs:MountNamespace vfs:Filesystem sys:dir kernel:FSContext kernel:ProcessGroup kernel:Session shm:Shm mm:aioMappable mm:SpecialMappable transport:queue And the following use the template, but because they currently are not leak checked, a TODO is left instead of enabling leak check in this patch: kernel:FDTable tun:tunEndpoint Updates #1486. PiperOrigin-RevId: 328460377
2020-09-09Change "Fd" member to "FD" according to convensiongVisor bot
PiperOrigin-RevId: 328374775
2020-09-09Bump build constraints to 1.17Michael Pratt
This enables pre-release testing with 1.16. The intention is to replace these with a nogo check before the next release. PiperOrigin-RevId: 328193911
2020-09-09Update inotify documentation for gofer filesystem.Dean Deng
We now allow hard links to be created within gofer fs (see github.com/google/gvisor/commit/f20e63e31b56784c596897e86f03441f9d05f567). Update the inotify documentation accordingly. PiperOrigin-RevId: 328177485
2020-09-09[vfs] Allow mountpoint to be an existing non-directory.Ayush Ranjan
Unlike linux mount(2), OCI spec allows mounting on top of an existing non-directory file. PiperOrigin-RevId: 327914342
2020-09-09Provide fdReader/Writer for FileDescriptiongVisor bot
fdReader/Writer implements io.Reader/Writer so that they can be passed to Merkle tree library. PiperOrigin-RevId: 327901376
2020-09-09Internal change.gVisor bot
PiperOrigin-RevId: 327892274
2020-09-09Make mounts ReadWrite first, then later change to ReadOnly.Nicolas Lacasse
This lets us create "synthetic" mountpoint directories in ReadOnly mounts during VFS setup. Also add context.WithMountNamespace, as some filesystems (like overlay) require a MountNamespace on ctx to handle vfs.Filesystem Operations. PiperOrigin-RevId: 327874971
2020-09-09[vfs] Create recursive dir creation util.Ayush Ranjan
Refactored the recursive dir creation util in runsc/boot/vfs.go to be more flexible. PiperOrigin-RevId: 327719100
2020-09-09Consistent precondition formattingMichael Pratt
Our "Preconditions:" blocks are very useful to determine the input invariants, but they are bit inconsistent throughout the codebase, which makes them harder to read (particularly cases with 5+ conditions in a single paragraph). I've reformatted all of the cases to fit in simple rules: 1. Cases with a single condition are placed on a single line. 2. Cases with multiple conditions are placed in a bulleted list. This format has been added to the style guide. I've also mentioned "Postconditions:", though those are much less frequently used, and all uses already match this style. PiperOrigin-RevId: 327687465
2020-09-09Fix tabs in lock-ordering doc.Nicolas Lacasse
PiperOrigin-RevId: 327654207
2020-09-09Merge release-20200818.0-143-gaead623d9 (automated)gVisor bot
2020-09-09Merge release-20200818.0-140-gfb281eea7 (automated)gVisor bot
2020-09-09Merge release-20200818.0-139-g26439f9a4 (automated)gVisor bot
2020-09-09Merge release-20200818.0-138-g00479af51 (automated)gVisor bot
2020-09-09Merge release-20200818.0-137-g8d3551da6 (automated)gVisor bot
2020-09-09Merge release-20200818.0-136-gbca4d99a4 (automated)gVisor bot
2020-09-08[vfs] overlayfs: Fix socket tests.Ayush Ranjan
- BindSocketThenOpen test was expecting the incorrect error when opening a socket. Fixed that. - VirtualFilesystem.BindEndpointAt should not require pop.Path.Begin.Ok() because the filesystem implementations do not need to walk to the parent dentry. This check also exists for MknodAt, MkdirAt, RmdirAt, SymlinkAt and UnlinkAt but those filesystem implementations also need to walk to the parent denty. So that check is valid. Added some syscall tests to test this. PiperOrigin-RevId: 330625220
2020-09-08Merge release-20200818.0-135-ga17d083f3 (automated)gVisor bot
2020-09-08Merge release-20200818.0-133-g682c0edcd (automated)gVisor bot
2020-09-08Merge release-20200818.0-132-gc8f1ce288 (automated)gVisor bot
2020-09-08Honor readonly flag for root mountFabricio Voznika
Updates #1487 PiperOrigin-RevId: 330580699
2020-09-08Merge release-20200818.0-131-g284e6811e (automated)gVisor bot
2020-09-08Merge release-20200818.0-130-ga3b87a0ce (automated)gVisor bot
2020-09-08Merge release-20200818.0-128-g38cdb0579 (automated)gVisor bot
2020-09-08Merge release-20200818.0-127-gd35f07b36 (automated)gVisor bot
2020-09-08Merge release-20200818.0-126-gd84ec6c42 (automated)gVisor bot
2020-09-08[vfs] Capitalize x in the {Get/Set/Remove/List}xattr functions.Ayush Ranjan
PiperOrigin-RevId: 330554450
2020-09-04Merge release-20200818.0-124-g2202812e0 (automated)gVisor bot
2020-09-04Merge release-20200818.0-122-gb6d6a120d (automated)gVisor bot
2020-09-03Merge release-20200818.0-120-g76e51c8b9 (automated)gVisor bot
2020-09-03Merge release-20200818.0-119-g30c20df76 (automated)gVisor bot
2020-09-03Merge release-20200818.0-118-g319ce6736 (automated)gVisor bot
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