Author: mjg
Date: Thu Mar 16 06:12:00 2017
New Revision: 315374
URL: https://svnweb.freebsd.org/changeset/base/315374

Log:
  MFC r313391:
  
  Bump struct thread alignment to 32.
  
  This gives additional bits to use in locking primitives which store
  the lock thread pointer in the lock value.

Modified:
  stable/11/sys/kern/init_main.c
  stable/11/sys/kern/kern_thread.c
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/sys/kern/init_main.c
==============================================================================
--- stable/11/sys/kern/init_main.c      Thu Mar 16 06:04:26 2017        
(r315373)
+++ stable/11/sys/kern/init_main.c      Thu Mar 16 06:12:00 2017        
(r315374)
@@ -99,7 +99,7 @@ void mi_startup(void);                                /* 
Should be e
 static struct session session0;
 static struct pgrp pgrp0;
 struct proc proc0;
-struct thread0_storage thread0_st __aligned(16);
+struct thread0_storage thread0_st __aligned(32);
 struct vmspace vmspace0;
 struct proc *initproc;
 

Modified: stable/11/sys/kern/kern_thread.c
==============================================================================
--- stable/11/sys/kern/kern_thread.c    Thu Mar 16 06:04:26 2017        
(r315373)
+++ stable/11/sys/kern/kern_thread.c    Thu Mar 16 06:12:00 2017        
(r315374)
@@ -283,7 +283,7 @@ threadinit(void)
 
        thread_zone = uma_zcreate("THREAD", sched_sizeof_thread(),
            thread_ctor, thread_dtor, thread_init, thread_fini,
-           16 - 1, UMA_ZONE_NOFREE);
+           32 - 1, UMA_ZONE_NOFREE);
        tidhashtbl = hashinit(maxproc / 2, M_TIDHASH, &tidhash);
        rw_init(&tidhash_lock, "tidhash");
 }
_______________________________________________
[email protected] mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "[email protected]"

Reply via email to