writable           74 file.c             pipeclose(ff.pipe, ff.writable);
writable          122 file.c           if(f->writable == 0)
writable            5 file.h           char writable;
writable           40 pipe.c           (*f0)->writable = 0;
writable           44 pipe.c           (*f1)->writable = 1;
writable           60 pipe.c         pipeclose(struct pipe *p, int writable)
writable           63 pipe.c           if(writable){
writable          331 sysfile.c        f->writable = (omode & O_WRONLY) || (omode & O_RDWR);