{
  "slug": "fuse-flush",
  "term": "FUSE FLUSH",
  "aliases": [
    "fuse_lowlevel_ops.flush"
  ],
  "definition": "FUSE FLUSH is a close-associated request whose callback is distinct from the filesystem's synchronization and final-release operations.",
  "note": "Multiplicity: duplicated descriptors can produce several FLUSH requests for one open. The callback is not a persistence barrier. [libfuse-api]\n\nInterpretation: distinguish it from FSYNC and from a drive-cache flush when reading storage logs. [hesela-fuse]",
  "related": [
    "fuse",
    "fsync",
    "close",
    "open-file-description",
    "cache-flush"
  ],
  "citations": [
    {
      "id": "libfuse-api",
      "title": "libfuse 3.16.2: low-level open, flush, release and fsync contracts",
      "url": "https://github.com/libfuse/libfuse/blob/fuse-3.16.2/include/fuse_lowlevel.h",
      "accessed": "2026-10-18"
    },
    {
      "id": "hesela-fuse",
      "title": "Hesela: FUSE writeback caching and the fsync contract",
      "url": "https://hesela.com/analyses/fuse-writeback-cache-fsync/",
      "accessed": "2026-10-18"
    }
  ],
  "status": "shipping",
  "advantages": [],
  "limitations": [],
  "supersedes": [],
  "supersededBy": [],
  "firstSeen": null,
  "lastSeen": null,
  "updated": "2026-10-18"
}