Kernel sources reformated with 4 space indent, no tabs.

Unused file include/trace.h deleted.

sys/include/user.h

@@ -21,89 +21,89 @@
  * 0x80007400; contains the system stack (and possibly network stack) per
  * user; is cross referenced with the proc structure for the same process.
  */
-#define	MAXCOMLEN	MAXNAMLEN	/* <= MAXNAMLEN, >= sizeof(ac_comm) */
+#define MAXCOMLEN   MAXNAMLEN   /* <= MAXNAMLEN, >= sizeof(ac_comm) */
 
 struct user {
-	struct	proc *u_procp;		/* pointer to proc structure */
-	int	*u_frame;		/* address of users saved frame */
-	char	u_comm[MAXCOMLEN + 1];  /* command file name */
-	label_t u_qsave;		/* for non-local gotos on interrupts */
-	label_t	u_rsave;		/* save info when exchanging stacks */
-	label_t	u_ssave;		/* label variable for swapping */
+    struct  proc *u_procp;          /* pointer to proc structure */
+    int     *u_frame;               /* address of users saved frame */
+    char    u_comm[MAXCOMLEN + 1];  /* command file name */
+    label_t u_qsave;                /* for non-local gotos on interrupts */
+    label_t u_rsave;                /* save info when exchanging stacks */
+    label_t u_ssave;                /* label variable for swapping */
 
 /* syscall parameters and results */
-	int	u_arg[6];		/* arguments to current system call */
-	int	u_rval;			/* return value */
-	int	u_error;		/* return error code */
+    int     u_arg[6];               /* arguments to current system call */
+    int     u_rval;                 /* return value */
+    int     u_error;                /* return error code */
 
 /* 1.1 - processes and protection */
-	uid_t	u_uid;			/* effective user id */
-	uid_t	u_svuid;		/* saved user id */
-	uid_t	u_ruid;			/* real user id */
-	gid_t	u_svgid;		/* saved group id */
-	gid_t	u_rgid;			/* real group id */
-	gid_t	u_groups[NGROUPS];	/* groups, 0 terminated */
+    uid_t   u_uid;                  /* effective user id */
+    uid_t   u_svuid;                /* saved user id */
+    uid_t   u_ruid;                 /* real user id */
+    gid_t   u_svgid;                /* saved group id */
+    gid_t   u_rgid;                 /* real group id */
+    gid_t   u_groups[NGROUPS];      /* groups, 0 terminated */
 
 /* 1.2 - memory management */
-	size_t	u_tsize;		/* text size (clicks) */
-	size_t	u_dsize;		/* data size (clicks) */
-	size_t	u_ssize;		/* stack size (clicks) */
+    size_t  u_tsize;                /* text size (clicks) */
+    size_t  u_dsize;                /* data size (clicks) */
+    size_t  u_ssize;                /* stack size (clicks) */
 
 /* 1.3 - signal management */
-	sig_t	u_signal[NSIG];         /* disposition of signals */
-	long	u_sigmask[NSIG];	/* signals to be blocked */
-	long	u_sigonstack;		/* signals to take on sigstack */
-	long	u_sigintr;		/* signals that interrupt syscalls */
-	long	u_oldmask;		/* saved mask from before sigpause */
-	int	u_code;			/* ``code'' to trap */
-	int	u_psflags;		/* Process Signal flags */
-	struct	sigaltstack u_sigstk;	/* signal stack info */
-	u_int	u_sigtramp;		/* pointer to trampoline code in user space */
+    sig_t   u_signal[NSIG];         /* disposition of signals */
+    long    u_sigmask[NSIG];        /* signals to be blocked */
+    long    u_sigonstack;           /* signals to take on sigstack */
+    long    u_sigintr;              /* signals that interrupt syscalls */
+    long    u_oldmask;              /* saved mask from before sigpause */
+    int     u_code;                 /* ``code'' to trap */
+    int     u_psflags;              /* Process Signal flags */
+    struct  sigaltstack u_sigstk;   /* signal stack info */
+    u_int   u_sigtramp;             /* pointer to trampoline code in user space */
 
 /* 1.4 - descriptor management */
-	struct	file *u_ofile[NOFILE];	/* file structures for open files */
-	char	u_pofile[NOFILE];	/* per-process flags of open files */
-	int	u_lastfile;		/* high-water mark of u_ofile */
-#define	UF_EXCLOSE 	0x1		/* auto-close on exec */
-#define	UF_MAPPED 	0x2		/* mapped from device */
-	struct	inode *u_cdir;		/* current directory */
-	struct	inode *u_rdir;		/* root directory of current process */
-	struct	tty *u_ttyp;		/* controlling tty pointer */
-	dev_t	u_ttyd;			/* controlling tty dev */
-	int	u_cmask;		/* mask for file creation */
+    struct  file *u_ofile[NOFILE];  /* file structures for open files */
+    char    u_pofile[NOFILE];       /* per-process flags of open files */
+    int u_lastfile;                 /* high-water mark of u_ofile */
+#define UF_EXCLOSE  0x1             /* auto-close on exec */
+#define UF_MAPPED   0x2             /* mapped from device */
+    struct  inode *u_cdir;          /* current directory */
+    struct  inode *u_rdir;          /* root directory of current process */
+    struct  tty *u_ttyp;            /* controlling tty pointer */
+    dev_t   u_ttyd;                 /* controlling tty dev */
+    int     u_cmask;                /* mask for file creation */
 
 /* 1.5 - timing and statistics */
-	struct	k_rusage u_ru;		/* stats for this proc */
-	struct	k_rusage u_cru;		/* sum of stats for reaped children */
-	struct	k_itimerval u_timer[2];	/* profile/virtual timers */
-	long	u_start;
-	int	u_dupfd;		/* XXX - see kern_descrip.c/fdopen */
+    struct  k_rusage u_ru;          /* stats for this proc */
+    struct  k_rusage u_cru;         /* sum of stats for reaped children */
+    struct  k_itimerval u_timer[2]; /* profile/virtual timers */
+    long    u_start;
+    int     u_dupfd;                /* XXX - see kern_descrip.c/fdopen */
 
-	struct uprof {			/* profile arguments */
-		unsigned *pr_base;	/* buffer base */
-		unsigned pr_size;	/* buffer size */
-		unsigned pr_off;	/* pc offset */
-		unsigned pr_scale;	/* pc scaling */
-	} u_prof;
+    struct uprof {                  /* profile arguments */
+        unsigned *pr_base;          /* buffer base */
+        unsigned pr_size;           /* buffer size */
+        unsigned pr_off;            /* pc offset */
+        unsigned pr_scale;          /* pc scaling */
+    } u_prof;
 
 /* 1.6 - resource controls */
-	struct	rlimit u_rlimit[RLIM_NLIMITS];
+    struct  rlimit u_rlimit[RLIM_NLIMITS];
 
 /* namei & co. */
-	struct	nameicache {		/* last successful directory search */
-		off_t nc_prevoffset;	/* offset at which last entry found */
-		ino_t nc_inumber;	/* inum of cached directory */
-		dev_t nc_dev;		/* dev of cached directory */
-	} u_ncache;
-	int	u_stack[1];		/* kernel stack per user
-					 * extends from u + USIZE
-					 * backward not to reach here */
+    struct  nameicache {            /* last successful directory search */
+        off_t nc_prevoffset;        /* offset at which last entry found */
+        ino_t nc_inumber;           /* inum of cached directory */
+        dev_t nc_dev;               /* dev of cached directory */
+    } u_ncache;
+    int     u_stack[1];             /* kernel stack per user
+                                     * extends from u + USIZE
+                                     * backward not to reach here */
 };
 
 #include <sys/errno.h>
 
 #ifdef KERNEL
-extern	struct user u, u0;
+extern  struct user u, u0;
 
 /*
  * Increment user profiling counters.