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path: root/pkg/sentry/fs/overlay.go
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2019-06-13Plumb context through more layers of filesytem.Ian Gudger
All functions which allocate objects containing AtomicRefCounts will soon need a context. PiperOrigin-RevId: 253147709
2019-06-13Update canonical repository.Adin Scannell
This can be merged after: https://github.com/google/gvisor-website/pull/77 or https://github.com/google/gvisor-website/pull/78 PiperOrigin-RevId: 253132620
2019-04-29Change copyright notice to "The gVisor Authors"Michael Pratt
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
2018-12-12Pass information about map writableness to filesystems.Rahat Mahmood
This is necessary to implement file seals for memfds. PiperOrigin-RevId: 225239394 Change-Id: Ib3f1ab31385afc4b24e96cd81a05ef1bebbcbb70
2018-12-05Add context to mount errorsMichael Pratt
This makes it more obvious why a mount failed. PiperOrigin-RevId: 224203880 Change-Id: I7961774a7b6fdbb5493a791f8b3815c49b8f7631
2018-10-19Use correct company name in copyright headerIan Gudger
PiperOrigin-RevId: 217951017 Change-Id: Ie08bf6987f98467d07457bcf35b5f1ff6e43c035
2018-08-10fs: Allow overlays to revalidate files from the upper fs.Nicolas Lacasse
Previously, an overlay would panic if either the upper or lower fs required revalidation for a given Dirent. Now, we allow revalidation from the upper file, but not the lower. If a cached overlay inode does need revalidation (because the upper needs revalidation), then the entire overlay Inode will be discarded and a new overlay Inode will be built with a fresh copy of the upper file. As a side effect of this change, Revalidate must take an Inode instead of a Dirent, since an overlay needs to revalidate individual Inodes. PiperOrigin-RevId: 208293638 Change-Id: Ic8f8d1ffdc09114721745661a09522b54420c5f1
2018-08-02Automated rollback of changelist 207037226Zhaozhong Ni
PiperOrigin-RevId: 207125440 Change-Id: I6c572afb4d693ee72a0c458a988b0e96d191cd49
2018-08-01Automated rollback of changelist 207007153Michael Pratt
PiperOrigin-RevId: 207037226 Change-Id: I8b5f1a056d4f3eab17846f2e0193bb737ecb5428
2018-08-01stateify: convert all packages to use explicit mode.Zhaozhong Ni
PiperOrigin-RevId: 207007153 Change-Id: Ifedf1cc3758dc18be16647a4ece9c840c1c636c9
2018-07-26Don't copy-up extended attributes that specifically configure a lower overlay.Nicolas Lacasse
When copying-up files from a lower fs to an upper, we also copy the extended attributes on the file. If there is a (nested) overlay inside the lower, some of these extended attributes configure the lower overlay, and should not be copied-up to the upper. In particular, whiteout attributes in the lower fs overlay should not be copied-up, since the upper fs may actually contain the file. PiperOrigin-RevId: 206236010 Change-Id: Ia0454ac7b99d0e11383f732a529cb195ed364062
2018-06-26Add KVM, overlay and host network to image testsFabricio Voznika
PiperOrigin-RevId: 202236006 Change-Id: I4ea964a70fc49e8b51c9da27d77301c4eadaae71
2018-06-13Fix failure to mount volume that sandbox process has no accessFabricio Voznika
Boot loader tries to stat mount to determine whether it's a file or not. This may file if the sandbox process doesn't have access to the file. Instead, add overlay on top of file, which is better anyway since we don't want to propagate changes to the host. PiperOrigin-RevId: 200411261 Change-Id: I14222410e8bc00ed037b779a1883d503843ffebb
2018-04-28Check in gVisor.Googler
PiperOrigin-RevId: 194583126 Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
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