commit 8d8dbb49c3ff616852637555b9423622019f727e
author Sahana Rao <sahanas@google.com> Wed Dec 18 12:57:02 2019 +0000
committer Sahana Rao <sahanas@google.com> Thu Dec 19 12:23:17 2019 +0000
tree 27e0849298f4b0cd5e9f70b23c37aabc04563db5
parent 619cf48ddb6b14cf2a211487896d88c396b4b1de

Ignore lookup errors in FUSE readdir

ReaddirPlus does a lookup on directory entries to get file attributes from
lower file system. If directory entries returned from MediaProvider database
includes stale entries, lookup can fail with 'No such file or
directory'. Since we can't guarantee to have a clean database with no
stale entries, ReaddirPlus should ignore such lookup failures.
Lookups can also fail if the path doesn't match with FuseDaemon ID or
calling UID, ignore both lookup failures.
Bug: 145745132
Test: atest -c FuseDaemonHostTest#testListDirectoryWithMediaFiles
      atest -c FuseDaemonHostTest#testListDirectoryWithNonMediaFiles

Change-Id: Icc38d04c8f5ecd4d298cfcbfc427d9430044f2b8