google / alioth / 37280827712

38%

Build Type

push

github

Committed by Lencerf

Commit Message

fix(fs): support multi-descriptor reply buffers for READDIR and GETXATTR

Virtio-fs reply buffers for READDIR and GETXATTR may span multiple
writable virtqueue descriptors (or zero payload descriptors when
GETXATTR queries an attribute's size), which previously failed with
EINVAL because opcode_branch! matched only a single output slice.

Change Fuse::read_dir and Fuse::get_xattr to accept &mut [IoSliceMut],
update Passthrough::read_dir to write directory entries across the
slice list, and add unit tests for Passthrough::read_dir.

Signed-off-by: Stephen Judkins <stephen.judkins@gmail.com>
Assisted-by: Antigravity:Gemini-4-Argon
Signed-off-by: Changyuan Lyu <changyuanl@google.com>

Coverage Stats

812 of 1642 branches covered (49.45%)

Branch coverage included in aggregate %.

23 of 25 new or added lines in 2 files covered. (92.0%)

3 existing lines in 1 file now uncovered.

5905 of 15562 relevant lines covered (37.94%)

919.06 hits per line