Commit ff5934ac authored by Julius Athenstaedt's avatar Julius Athenstaedt
Browse files

feature flag for writeback

parent 1eedd9ca

src/client/fuse/fuse_client.cpp

+12 −6
Original line number Diff line number Diff line
@@ -125,14 +125,20 @@ init_handler(void* userdata, struct fuse_conn_info* conn) { 
    struct u_data* ud = (struct u_data*) userdata;

    fuse_log(FUSE_LOG_DEBUG, "init handler readahead %i direct_io %i \n",

             ud->max_readahead, ud->direct_io);

    // bool has_flag;



    // TODO check other capabilities e.g. FUSE_CAP_READDIRPLUS

    // if(lo->writeback) {

    //     has_flag = fuse_set_feature_flag(conn, FUSE_CAP_WRITEBACK_CACHE);

    //     if(lo->debug && has_flag)

    //         fuse_log(FUSE_LOG_DEBUG, "init_handler: activating writeback\n");

    // }

    if(ud->writeback) {

#if FUSE_MAJOR_VERSION > 3 ||                                                  \

        (FUSE_MAJOR_VERSION == 3 && FUSE_MINOR_VERSION >= 12)

        fuse_set_feature_flag(conn, FUSE_CAP_WRITEBACK_CACHE);

#else

        // for older fuse versions like on the ubuntu22

        conn->want |= FUSE_CAP_WRITEBACK_CACHE;

#endif

        if(ud->debug)

            fuse_log(FUSE_LOG_DEBUG,

                     "init_handler: try to activate writeback\n");

    }

    // if(lo->flock && conn->capable & FUSE_CAP_FLOCK_LOCKS) {

    //     has_flag = fuse_set_feature_flag(conn, FUSE_CAP_FLOCK_LOCKS);

    //     if(lo->debug && has_flag)