Ryan Houdek 0fa7af15b2 FEXMountDaemon: Fixes dangling mounts problem ...

The FEXMountDaemon no longer uses the inotify interface for refcounting
instances of FEX.
The inotify interface fails to send close events when an application
crashes. Which is either an API oversight or intentional choice.

Now to use FEXMountDaemon the FEX process must send the daemon a pipe
fd.
The FEXMountDaemon then uses the write end of the pipe to determine if
the read end of the pipe is still open. It does this using the epoll API
and ref counting how many pipes are still active.
This is possible since epoll will tell us if pipe status has changed to
error. Signalling to the write end that the read end has closed for
whatever reason.

Now we only use the "lock" file to remove races and tell the new
instances of FEX where the rootfs is mounted

2021-09-05 00:36:44 -07:00

..

Common

FEXMountDaemon: Fixes dangling mounts problem

2021-09-05 00:36:44 -07:00

CommonCore

Massive amount of IWYU cleanup

2021-08-28 00:32:15 -07:00

Linux

Massive amount of IWYU cleanup

2021-08-28 00:32:15 -07:00

Tests

Linux: Adds missing Namespace handlers

2021-09-03 17:04:15 -07:00

Tools

FEXMountDaemon: Fixes dangling mounts problem

2021-09-05 00:36:44 -07:00

CMakeLists.txt

Moves ELF handlers from FEXCore to frontend

2021-06-27 02:07:56 -07:00