Kernel: Add a mechanism for listening for changes to an inode.

The syscall is quite simple:

    int watch_file(const char* path, int path_length);

It returns a file descriptor referring to a "InodeWatcher" object in the
kernel. It becomes readable whenever something changes about the inode.

Currently this is implemented by hooking the "metadata dirty bit" in
Inode which isn't perfect, but it's a start. :^)

1 files changed, 1 insertions, 0 deletions

diff --git a/Kernel/Makefile b/Kernel/Makefile
index a508a8cc24..62f8b1276b 100644
--- a/Kernel/Makefile
+++ b/Kernel/Makefile
@@ -72,6 +72,7 @@ VFS_OBJS = \
     Devices/DebugLogDevice.o \
     Devices/DiskPartition.o \
     Devices/MBRPartitionTable.o \
+    FileSystem/InodeWatcher.o \
     FileSystem/FileSystem.o \
     FileSystem/DiskBackedFileSystem.o \
     FileSystem/Ext2FileSystem.o \