diff options
| author | Zim <zezeozue@google.com> | 2020-03-06 13:45:19 +0000 |
|---|---|---|
| committer | Zimuzo Ezeozue <zezeozue@google.com> | 2020-03-13 13:36:12 +0000 |
| commit | 4d3fa27c4e041ffa57155ac83784e50bbc58c084 (patch) | |
| tree | 348144119b3b21962f935e15ddf7a5fd54a6b667 /jni/com_android_providers_media_FuseDaemon.cpp | |
| parent | 08cda783a77adce97f6202feee9698d9660d63ba (diff) | |
| download | MediaProvider-4d3fa27c4e041ffa57155ac83784e50bbc58c084.tar.gz | |
Prevent invalidating dentries on FUSE threads
libfuse provides an api to invalidate VFS dentries,
fuse_lowlevel_notify_inval_entry. This can be useful to invalidate a
dentry if it has been modified on the lower file system.
This API *must* never be called on a FUSE thread.
This cl takes advantage of the fact that all FUSE threads can be
identified by a JNIEnv TLS pthread key.
Test: Manual
Bug: 149512775
Change-Id: Idc9b91d1979489568c4b1dea57212c5983950b52
Merged-In: Idc9b91d1979489568c4b1dea57212c5983950b52
(cherry picked from commit e65c95b5d0b12a048c406c8877da71d670c4197f)
Diffstat (limited to 'jni/com_android_providers_media_FuseDaemon.cpp')
| -rw-r--r-- | jni/com_android_providers_media_FuseDaemon.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/jni/com_android_providers_media_FuseDaemon.cpp b/jni/com_android_providers_media_FuseDaemon.cpp index 9a79412e5..fe4848f73 100644 --- a/jni/com_android_providers_media_FuseDaemon.cpp +++ b/jni/com_android_providers_media_FuseDaemon.cpp @@ -92,6 +92,7 @@ void com_android_providers_media_FuseDaemon_invalidate_fuse_dentry_cache(JNIEnv* return; } + CHECK_EQ(pthread_getspecific(fuse::MediaProviderWrapper::gJniEnvKey), nullptr); daemon->InvalidateFuseDentryCache(utf_chars_path.c_str()); } // TODO(b/145741152): Throw exception |