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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
2018-08-10Enable checkpoint/restore in cases of UDS use.Brielle Broder
Previously, processes which used file-system Unix Domain Sockets could not be checkpoint-ed in runsc because the sockets were saved with their inode numbers which do not necessarily remain the same upon restore. Now, the sockets are also saved with their paths so that the new inodes can be determined for the sockets based on these paths after restoring. Tests for cases with UDS use are included. Test cleanup to come. PiperOrigin-RevId: 208268781 Change-Id: Ieaa5d5d9a64914ca105cae199fd8492710b1d7ec
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
2018-07-27stateify: support explicit annotation mode; convert refs and stack packages.Zhaozhong Ni
We have been unnecessarily creating too many savable types implicitly. PiperOrigin-RevId: 206334201 Change-Id: Idc5a3a14bfb7ee125c4f2bb2b1c53164e46f29a8
2018-07-19fs: Pass context to Revalidate() function.Nicolas Lacasse
The current revalidation logic is very simple and does not do much introspection of the dirent being revalidated (other than looking at the type of file). Fancier revalidation logic is coming soon, and we need to be able to look at the cached and uncached attributes of a given dirent, and we need a context to perform some of these operations. PiperOrigin-RevId: 205307351 Change-Id: If17ea1c631d8f9489c0e05a263e23d7a8a3bf159
2018-07-13Allow a filesystem to control its visibility in /proc/filesystems.Neel Natu
PiperOrigin-RevId: 204508520 Change-Id: I09e5f8b6e69413370e1a0d39dbb7dc1ee0b6192d
2018-06-11Sentry: split tty.queue into its own file.Kevin Krakauer
Minor refactor. line_discipline.go was home to 2 large structs (lineDiscipline and queue), and queue is now large enough IMO to get its own file. Also moves queue locks into the queue struct, making locking simpler. PiperOrigin-RevId: 200080301 Change-Id: Ia75a0e9b3d9ac8d7e5a0f0099a54e1f5b8bdea34
2018-06-07Sentry: very basic terminal echo support.Kevin Krakauer
Adds support for echo to terminals. Echoing is just copying input back out to the user, e.g. when I type "foo" into a terminal, I expect "foo" to be echoed back to my terminal. Also makes the transform function part of the queue, eliminating the need to pass them around together and the possibility of using the wrong transform for a queue. PiperOrigin-RevId: 199655147 Change-Id: I37c490d4fc1ee91da20ae58ba1f884a5c14fd0d8
2018-05-11sentry: Adds canonical mode support.Kevin Krakauer
PiperOrigin-RevId: 196331627 Change-Id: Ifef4485f8202c52481af317cedd52d2ef48cea6a
2018-05-03Fix misspellings.Cyrille Hemidy
PiperOrigin-RevId: 195307689 Change-Id: I499f19af49875a43214797d63376f20ae788d2f4
2018-04-28Check in gVisor.Googler
PiperOrigin-RevId: 194583126 Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
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