Function bcache_flush_immutable

src/blockcache.cc:1248–1257

flush and synchronize a batch of contiguous dirty immutable blocks in file dirty blocks will be changed to clean blocks (not discarded) Note: This function can be invoked as part of background flushing

// dirty blocks will be changed to clean blocks (not discarded)
// Note: This function can be invoked as part of background flushing
fdb_status bcache_flush_immutable(struct filemgr *file)
{
    struct fnamedic_item *fname_item;
    fdb_status status = FDB_RESULT_SUCCESS;
    fname_item = file->bcache;
    if (fname_item) {
        status = _flush_dirty_blocks(fname_item, true, true, true);
    }
    return status;
}

// remove all dirty blocks of the FILE
// (they are only discarded and not written back)