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iskernelp() and isuserp() test pointers

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- we may test even not fully initialized entries, e.g. during boot
  crash

- is we know the process number we should use iskerneln
  and isusern
This commit is contained in:
Tomas Hruby 2009-09-15 09:58:46 +00:00
parent 78793f4f38
commit 71077d1228
1 changed files with 2 additions and 2 deletions
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4
kernel/proc.h
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@ -204,9 +204,9 @@ struct proc {
#define isokprocn(n) ((unsigned) ((n) + NR_TASKS) < NR_PROCS + NR_TASKS)
#define isemptyn(n) isemptyp(proc_addr(n))
#define isemptyp(p) ((p)->p_rts_flags == SLOT_FREE)
#define iskernelp(p) iskerneln((p)->p_nr)
#define iskernelp(p) ((p) < BEG_USER_ADDR)
#define iskerneln(n) ((n) < 0)
#define isuserp(p) isusern((p)->p_nr)
#define isuserp(p) isusern((p) >= BEG_USER_ADDR)
#define isusern(n) ((n) >= 0)
/* The process table and pointers to process table slots. The pointers allow