Also ensure that all flipcall transport errors not returned by p9 (converted to
EIO by the client, or dropped on the floor by channel server goroutines) are
logged.
PiperOrigin-RevId: 272963663
Currently, the path tracking in the gofer involves an O(n) lookup of
child fidRefs. This causes a significant overhead on unlinks in
directories with lots of child fidRefs (<4k).
In this transition, pathNode moves from sync.Map to normal synchronized
maps. There is a small chance of contention in walk, but the lock is
held for a very short time (and sync.Map also had a chance of requiring
locking).
OTOH, sync.Map makes it very difficult to add a fidRef reverse map.
PiperOrigin-RevId: 254489952
Neither fidRefs or children are (directly) synchronized by mu. Remove
the preconditions that say so.
That said, the surrounding does enforce some synchronization guarantees
(e.g., fidRef.renameChildTo does not atomically replace the child in the
maps). I've tried to note the need for callers to do this
synchronization.
I've also renamed the maps to what are (IMO) clearer names. As is, it is
not obvious that pathNode.fidRefs is a map of *child* fidRefs rather
than self fidRefs.
PiperOrigin-RevId: 254446965
Cache last used messages and reuse them for subsequent requests.
If more messages are needed, they are created outside the cache
on demand.
PiperOrigin-RevId: 245836910
Change-Id: Icf099ddff95df420db8e09f5cdd41dcdce406c61
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
This change also adds extensive testing to the p9 package via mocks. The sanity
checks and type checks are moved from the gofer into the core package, where
they can be more easily validated.
PiperOrigin-RevId: 218296768
Change-Id: I4fc3c326e7bf1e0e140a454cbacbcc6fd617ab55
Jamie Liu
Adin Scannell
Michael Pratt
Fabricio Voznika
Ian Gudger
Googler