sapling/eden/fs/inodes
Xavier Deguillard c79ff7602a checkout: keep InodeNumber constant during checkout
Summary:
In an NFS mount, the InodeNumber are sent to the client as the unique
identifier for a file. For caching purposes, the client will issue a GETATTR
call on that InodeNumber prior to opening it, to see if the file changed and
thus whether its cache needs to be invalidated.

In EdenFS, the checkout process does unfortunately replace file inodes
entirely, causing new InodeNumber to be created, and thus after an update, an
NFS client would not realize that the content changed, and would thus return
the old content to the application. To solve this, we could approach it in 2
different ways:
 - Build a different kind of handle to hand over to the NFS client
 - Keep InodeNumber constant during checkout.

After trying the first option, it became clear that this would effectively need
to duplicate a lot of functionality from the InodeMap, but with added memory
consumption. This diff attempts to do the second one.

Reviewed By: chadaustin

Differential Revision: D28132721

fbshipit-source-id: 94d470e33174bb9ffd7db00e1b37924096aac8e9
2021-05-06 13:28:44 -07:00
..
overlay overlay: only log first 50 fsck errors 2021-04-22 13:12:50 -07:00
sqliteoverlay sqlite: release StatementCache before releasing SqliteDatabase 2021-03-16 23:30:22 -07:00
test checkout: keep InodeNumber constant during checkout 2021-05-06 13:28:44 -07:00
treeoverlay Remove thrift setters 2021-04-27 15:16:06 -07:00
CacheHint.h Tidy up license headers 2019-10-11 05:28:23 -07:00
CheckoutAction.cpp remove dependency on glog 2020-11-10 16:31:15 -08:00
CheckoutAction.h Avoid overfetching in checkout 2020-11-03 10:58:22 -08:00
CheckoutContext.cpp Apply clang-format update fixes 2021-01-10 10:06:29 -08:00
CheckoutContext.h logging for thrift object fetch: checkout 2020-07-26 23:09:40 -07:00
CMakeLists.txt nfs: implement SETATTR RPC 2021-03-11 08:31:07 -08:00
DeferredDiffEntry.cpp remove dependency on glog 2020-11-10 16:31:15 -08:00
DeferredDiffEntry.h add an ObjectFetchContext interface 2020-02-05 13:15:01 -08:00
DirEntry.cpp remove dependency on glog 2020-11-10 16:31:15 -08:00
DirEntry.h utils: introduce CaseSensitivity 2021-04-20 13:08:27 -07:00
EdenDispatcherFactory.cpp fs: add an NfsDispatcher 2021-02-17 23:32:38 -08:00
EdenDispatcherFactory.h fs: add an NfsDispatcher 2021-02-17 23:32:38 -08:00
EdenMount.cpp inodes: make tree-overlay a checkout configuration 2021-04-19 19:49:33 -07:00
EdenMount.h inodes: make lastCheckoutTime an atomic 2021-04-19 14:38:14 -07:00
EdenMountError.h Tidy up license headers 2019-10-11 05:28:23 -07:00
FileInode.cpp checkout: keep InodeNumber constant during checkout 2021-05-06 13:28:44 -07:00
FileInode.h checkout: keep InodeNumber constant during checkout 2021-05-06 13:28:44 -07:00
FuseDispatcherImpl.cpp fuse: rename DirList into FuseDirList 2021-03-18 10:08:49 -07:00
FuseDispatcherImpl.h fuse: rename DirList into FuseDirList 2021-03-18 10:08:49 -07:00
GlobNode.cpp Rename Try::throwIfFailed -> throwUnlessValue 2021-01-11 13:05:17 -08:00
GlobNode.h Allow specifying commits to match against and prefetch in globFiles 2020-10-29 13:34:06 -07:00
InodeBase.cpp inodes: make lastCheckoutTime an EdenTimestamp 2021-04-19 14:38:14 -07:00
InodeBase.h inodes: make lastCheckoutTime an EdenTimestamp 2021-04-19 14:38:14 -07:00
InodeError.cpp allow querying Overlay file size outside of FileInode 2020-10-23 11:16:10 -07:00
InodeError.h Tidy up license headers 2019-10-11 05:28:23 -07:00
InodeLoader.h utils: introduce CaseSensitivity 2021-04-20 13:08:27 -07:00
InodeMap.cpp inodes: make the fs refcount a flag on Windows 2020-12-04 09:13:37 -08:00
InodeMap.h inodes: rename the fuseRefcount in InodeMap 2020-11-16 09:03:18 -08:00
InodeMetadata.cpp inodes: make InodeBase::setattr independant from FUSE 2021-03-05 11:11:19 -08:00
InodeMetadata.h inodes: make InodeBase::setattr independant from FUSE 2021-03-05 11:11:19 -08:00
InodeNumber.cpp inodes: move fuse/InodeNumber.{cpp,h} into inodes/ 2020-09-02 12:15:48 -07:00
InodeNumber.h remove dependency on glog 2020-11-10 16:31:15 -08:00
InodePtr-defs.h remove dependency on glog 2020-11-10 16:31:15 -08:00
InodePtr.cpp Apply clang-format update fixes 2021-01-10 10:06:29 -08:00
InodePtr.h remove dependency on glog 2020-11-10 16:31:15 -08:00
InodePtrFwd.h Tidy up license headers 2019-10-11 05:28:23 -07:00
InodeTable.h Apply clang-format update fixes 2021-01-10 10:06:29 -08:00
InodeTimestamps.cpp inodes: make InodeBase::setattr independant from FUSE 2021-03-05 11:11:19 -08:00
InodeTimestamps.h inodes: make lastCheckoutTime an EdenTimestamp 2021-04-19 14:38:14 -07:00
IOverlay.h add new operation-aware APIs to IOverlay 2021-03-02 09:58:16 -08:00
NfsDispatcherImpl.cpp nfs: implement the MKNOD procedure 2021-04-13 15:17:35 -07:00
NfsDispatcherImpl.h nfs: implement the MKNOD procedure 2021-04-13 15:17:35 -07:00
Overlay.cpp utils: introduce CaseSensitivity 2021-04-20 13:08:27 -07:00
Overlay.h utils: introduce CaseSensitivity 2021-04-20 13:08:27 -07:00
OverlayFile.cpp implement FUSE_FALLOCATE 2021-01-20 19:04:59 -08:00
OverlayFile.h implement FUSE_FALLOCATE 2021-01-20 19:04:59 -08:00
OverlayFileAccess.cpp checkout: keep InodeNumber constant during checkout 2021-05-06 13:28:44 -07:00
OverlayFileAccess.h checkout: keep InodeNumber constant during checkout 2021-05-06 13:28:44 -07:00
ParentInodeInfo.h Tidy up license headers 2019-10-11 05:28:23 -07:00
PrjfsDispatcherImpl.cpp autodeps: remove @manual for cpptoml 2021-04-29 16:19:09 -07:00
PrjfsDispatcherImpl.h inodes: move dispatchers around 2021-02-10 11:52:06 -08:00
RequestContext.cpp telemetry: switch to using quantile stats instead of histograms 2021-02-14 16:37:08 -08:00
RequestContext.h telemetry: switch to using quantile stats instead of histograms 2021-02-14 16:37:08 -08:00
ServerState.cpp nfs: add NfsServer class 2021-02-09 12:47:11 -08:00
ServerState.h nfs: add NfsServer class 2021-02-09 12:47:11 -08:00
Traverse.cpp inodes: make loadOverlayDir to return empty dir when missing 2021-03-02 09:58:18 -08:00
Traverse.h inodes: rename FUSE refcount to fs refcount 2020-11-04 17:34:01 -08:00
TreeInode.cpp checkout: keep InodeNumber constant during checkout 2021-05-06 13:28:44 -07:00
TreeInode.h utils: introduce CaseSensitivity 2021-04-20 13:08:27 -07:00
TreePrefetchLease.cpp limit the number of tree prefetch operations that can run in parallel 2019-12-20 16:14:19 -08:00
TreePrefetchLease.h fix one case of logging of null ClientPid 2020-08-31 10:05:02 -07:00