Author: kib
Date: Wed Jul  4 13:28:16 2018
New Revision: 335937
URL: https://svnweb.freebsd.org/changeset/base/335937

Log:
  top: do not fall to the thread name if kernel cache of the process
  args is empty.
  
  Instead, use kvm_getargv() unconditionally to obtain the process
  arguments.  It means that one additional sysctl(2) is performed there.
  
  Submitted by: Thomas Munro
  MFC after:    1 week
  Differential revision:        https://reviews.freebsd.org/D16111

Modified:
  head/usr.bin/top/machine.c

Modified: head/usr.bin/top/machine.c
==============================================================================
--- head/usr.bin/top/machine.c  Wed Jul  4 13:26:47 2018        (r335936)
+++ head/usr.bin/top/machine.c  Wed Jul  4 13:28:16 2018        (r335937)
@@ -951,7 +951,6 @@ format_next_process(struct handle * xhandle, char *(*g
                }
        } else {
                if (pp->ki_flag & P_SYSTEM ||
-                   pp->ki_args == NULL ||
                    (args = kvm_getargv(kd, pp, cmdlen)) == NULL ||
                    !(*args)) {
                        if (ps.thread && pp->ki_flag & P_HADTHREADS &&
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