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Fix VFS notifications for ram file removal

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The ram plugin to the VFS must send notifications to watch handles on
files when they are removed. This brings the VFS server to parity with
the ram_fs server for the sake of notifications.

Move run/fs_report to gems and use the vfs server and the vfs init
plugin in the test.

Ref #2902
This commit is contained in:
Emery Hemingway 2018-07-05 17:55:24 +02:00 committed by Christian Helmuth
parent 953c62c04c
commit ca042e4e6e
2 changed files with 20 additions and 11 deletions
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28
repos/os/run/fs_report.run → repos/gems/run/fs_report.run
View File

@ -3,7 +3,11 @@
#
set build_components {
core init drivers/timer
server/fs_report server/fs_rom server/ram_fs test/fs_report
lib/vfs/import
server/fs_report
server/fs_rom
server/vfs
test/fs_report
}
build $build_components
@ -32,17 +36,20 @@ append config {
<resource name="RAM" quantum="1M"/>
<provides> <service name="Timer"/> </provides>
</start>
<start name="ram_fs">
<start name="vfs">
<resource name="RAM" quantum="4M"/>
<provides> <service name="File_system"/> </provides>
<config>
<content>
<dir name="test-fs_report">
<inline name="devices">
<devices version="initial"/>
</inline>
</dir>
</content>
<vfs>
<ram/>
<import>
<dir name="test-fs_report">
<inline name="devices">
<devices version="initial"/>
</inline>
</dir>
</import>
</vfs>
<policy label_prefix="fs_report -> " root="/" writeable="yes"/>
<policy label_prefix="fs_rom -> " root="/test-fs_report"/>
<policy label_prefix="test-fs_report -> " root="/test-fs_report" writeable="yes"/>
@ -82,7 +89,8 @@ install_config $config
#
set boot_modules {
core ld.lib.so init timer
fs_report fs_rom ram_fs test-fs_report vfs.lib.so
fs_report fs_rom test-fs_report
vfs vfs.lib.so vfs_import.lib.so
}
build_boot_image $boot_modules

3
repos/os/src/lib/vfs/ram_file_system.h
View File

@ -5,7 +5,7 @@
*/
/*
* Copyright (C) 2015-2017 Genode Labs GmbH
* Copyright (C) 2015-2018 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
@ -859,6 +859,7 @@ class Vfs::Ram_file_system : public Vfs::File_system
node->lock();
parent->release(node);
node->notify(_env.watch_handler());
parent->notify(_env.watch_handler());
remove(node);
return UNLINK_OK;