f                  32 kernel/file.c    struct file *f;
f                  35 kernel/file.c    for(f = ftable.file; f < ftable.file + NFILE; f++){
f                  36 kernel/file.c      if(f->ref == 0){
f                  37 kernel/file.c        f->ref = 1;
f                  39 kernel/file.c        return f;
f                  48 kernel/file.c  filedup(struct file *f)
f                  51 kernel/file.c    if(f->ref < 1)
f                  53 kernel/file.c    f->ref++;
f                  55 kernel/file.c    return f;
f                  60 kernel/file.c  fileclose(struct file *f)
f                  65 kernel/file.c    if(f->ref < 1)
f                  67 kernel/file.c    if(--f->ref > 0){
f                  71 kernel/file.c    ff = *f;
f                  72 kernel/file.c    f->ref = 0;
f                  73 kernel/file.c    f->type = FD_NONE;
f                  88 kernel/file.c  filestat(struct file *f, uint64 addr)
f                  93 kernel/file.c    if(f->type == FD_INODE || f->type == FD_DEVICE){
f                  94 kernel/file.c      ilock(f->ip);
f                  95 kernel/file.c      stati(f->ip, &st);
f                  96 kernel/file.c      iunlock(f->ip);
f                 107 kernel/file.c  fileread(struct file *f, uint64 addr, int n)
f                 111 kernel/file.c    if(f->readable == 0)
f                 114 kernel/file.c    if(f->type == FD_PIPE){
f                 115 kernel/file.c      r = piperead(f->pipe, addr, n);
f                 116 kernel/file.c    } else if(f->type == FD_DEVICE){
f                 117 kernel/file.c      if(f->major < 0 || f->major >= NDEV || !devsw[f->major].read)
f                 119 kernel/file.c      r = devsw[f->major].read(1, addr, n);
f                 120 kernel/file.c    } else if(f->type == FD_INODE){
f                 121 kernel/file.c      ilock(f->ip);
f                 122 kernel/file.c      if((r = readi(f->ip, 1, addr, f->off, n)) > 0)
f                 123 kernel/file.c        f->off += r;
f                 124 kernel/file.c      iunlock(f->ip);
f                 135 kernel/file.c  filewrite(struct file *f, uint64 addr, int n)
f                 139 kernel/file.c    if(f->writable == 0)
f                 142 kernel/file.c    if(f->type == FD_PIPE){
f                 143 kernel/file.c      ret = pipewrite(f->pipe, addr, n);
f                 144 kernel/file.c    } else if(f->type == FD_DEVICE){
f                 145 kernel/file.c      if(f->major < 0 || f->major >= NDEV || !devsw[f->major].write)
f                 147 kernel/file.c      ret = devsw[f->major].write(1, addr, n);
f                 148 kernel/file.c    } else if(f->type == FD_INODE){
f                 163 kernel/file.c        ilock(f->ip);
f                 164 kernel/file.c        if ((r = writei(f->ip, 1, addr + i, f->off, n1)) > 0)
f                 165 kernel/file.c          f->off += r;
f                 166 kernel/file.c        iunlock(f->ip);
f                 357 kernel/proc.c        struct file *f = p->ofile[fd];
f                 358 kernel/proc.c        fileclose(f);
f                  25 kernel/sysfile.c   struct file *f;
f                  28 kernel/sysfile.c   if(fd < 0 || fd >= NOFILE || (f=myproc()->ofile[fd]) == 0)
f                  33 kernel/sysfile.c     *pf = f;
f                  40 kernel/sysfile.c fdalloc(struct file *f)
f                  47 kernel/sysfile.c       p->ofile[fd] = f;
f                  57 kernel/sysfile.c   struct file *f;
f                  60 kernel/sysfile.c   if(argfd(0, 0, &f) < 0)
f                  62 kernel/sysfile.c   if((fd=fdalloc(f)) < 0)
f                  64 kernel/sysfile.c   filedup(f);
f                  71 kernel/sysfile.c   struct file *f;
f                  77 kernel/sysfile.c   if(argfd(0, 0, &f) < 0)
f                  79 kernel/sysfile.c   return fileread(f, p, n);
f                  85 kernel/sysfile.c   struct file *f;
f                  91 kernel/sysfile.c   if(argfd(0, 0, &f) < 0)
f                  94 kernel/sysfile.c   return filewrite(f, p, n);
f                 101 kernel/sysfile.c   struct file *f;
f                 103 kernel/sysfile.c   if(argfd(0, &fd, &f) < 0)
f                 106 kernel/sysfile.c   fileclose(f);
f                 113 kernel/sysfile.c   struct file *f;
f                 117 kernel/sysfile.c   if(argfd(0, 0, &f) < 0)
f                 119 kernel/sysfile.c   return filestat(f, st);
f                 309 kernel/sysfile.c   struct file *f;
f                 344 kernel/sysfile.c   if((f = filealloc()) == 0 || (fd = fdalloc(f)) < 0){
f                 345 kernel/sysfile.c     if(f)
f                 346 kernel/sysfile.c       fileclose(f);
f                 353 kernel/sysfile.c     f->type = FD_DEVICE;
f                 354 kernel/sysfile.c     f->major = ip->major;
f                 356 kernel/sysfile.c     f->type = FD_INODE;
f                 357 kernel/sysfile.c     f->off = 0;
f                 359 kernel/sysfile.c   f->ip = ip;
f                 360 kernel/sysfile.c   f->readable = !(omode & O_WRONLY);
f                 361 kernel/sysfile.c   f->writable = (omode & O_WRONLY) || (omode & O_RDWR);
f                2590 user/usertests.c   void (*f)(char *);
f                2960 user/usertests.c run(void f(char *), char *s) {
f                2970 user/usertests.c     f(s);
f                2986 user/usertests.c       if(!run(t->f, t->s)){