Commit Graph

4 Commits

Author SHA1 Message Date
Nicolas Lacasse 9db7cfad93 Add a new cache policy FSCACHE_WRITETHROUGH.
The new policy is identical to FSCACHE (which caches everything in memory), but
it also flushes writes to the backing fs agent immediately.

All gofer cache policy decisions have been moved into the cachePolicy type.
Previously they were sprinkled around the codebase.

There are many different things that we cache (page cache, negative dirents,
dirent LRU, unstable attrs, readdir results....), and I don't think we should
have individual flags to control each of these.  Instead, we should have a few
high-level cache policies that are consistent and useful to users.  This
refactoring makes it easy to add more such policies.

PiperOrigin-RevId: 201206937
Change-Id: I6e225c382b2e5e1b0ad4ccf8ca229873f4cd389d
2018-06-19 11:10:11 -07:00
Brielle Broder 711a9869e5 Runsc checkpoint works.
This is the first iteration of checkpoint that actually saves to a file.
Tests for checkpoint are included.

Ran into an issue when private unix sockets are enabled. An error message
was added for this case and the mutex state was set.

PiperOrigin-RevId: 200269470
Change-Id: I28d29a9f92c44bf73dc4a4b12ae0509ee4070e93
2018-06-12 13:25:23 -07:00
Nicolas Lacasse c97f0978b7 Cache symlinks in addition to files and directories.
PiperOrigin-RevId: 196051326
Change-Id: I4195b110e9a7d38d1ce1ed9c613971dea1be3bf0
2018-05-09 16:58:21 -07:00
Googler d02b74a5dc Check in gVisor.
PiperOrigin-RevId: 194583126
Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
2018-04-28 01:44:26 -04:00