Author: rwatson
Date: Mon Mar 9 13:12:48 2009
New Revision: 189573
URL: http://svn.freebsd.org/changeset/base/189573
Log:
Use a u_int for p_lock instead of a char: this avoids a (somewhat
unlikely but not impossible given modern thread counts) wrap-around,
and the compiler was padding it out to an int (at least) anyway.
MFC after: 3 days (but confirm ABI impact)
Modified:
head/sys/sys/proc.h
Modified: head/sys/sys/proc.h
==============================================================================
--- head/sys/sys/proc.h Mon Mar 9 13:11:16 2009 (r189572)
+++ head/sys/sys/proc.h Mon Mar 9 13:12:48 2009 (r189573)
@@ -491,7 +491,7 @@ struct proc {
struct vnode *p_tracevp; /* (c + o) Trace to vnode. */
struct ucred *p_tracecred; /* (o) Credentials to trace with. */
struct vnode *p_textvp; /* (b) Vnode of executable. */
- char p_lock; /* (c) Proclock (prevent swap) count. */
+ u_int p_lock; /* (c) Proclock (prevent swap) count. */
struct sigiolst p_sigiolst; /* (c) List of sigio sources. */
int p_sigparent; /* (c) Signal to parent on exit. */
int p_sig; /* (n) For core dump/debugger XXX. */
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