Rob Bradford bf3279f094 vmm: memory_manager: Add SEEK_DATA-based extent iterator ...

Adds next_data_extent: a streaming helper that returns the next
populated extent within a window of a file descriptor using
lseek(SEEK_DATA) / lseek(SEEK_HOLE). Used by subsequent commits to walk
the snapshot file extent-by-extent without collecting the full extent
list.

Returns an error on fds or filesystems without SEEK_HOLE support so the
caller can fall back to a dense write path.

Assisted-by: Claude:Opus-4.7
Signed-off-by: Rob Bradford <rbradford@meta.com>

2026-05-01 15:40:50 +00:00

..

src

vmm: memory_manager: Add SEEK_DATA-based extent iterator

2026-05-01 15:40:50 +00:00

build.rs

build: Add "fuzzing" as a valid cfg(..) attribute

2024-05-08 08:10:28 +00:00

Cargo.toml

vmm: memory_manager: Add SEEK_DATA-based extent iterator

2026-05-01 15:40:50 +00:00