svn commit: r267264 - head/sys/kern

[Konstantin Belousov]

Author: kib
Date: Mon Jun  9 09:10:31 2014
New Revision: 267264
URL: http://svnweb.freebsd.org/changeset/base/267264

Log:
  Devolatile as needed.
  
  Sponsored by: The FreeBSD Foundation
  MFC after:    13 days

Modified:
  head/sys/kern/vfs_bio.c

Modified: head/sys/kern/vfs_bio.c
==============================================================================
--- head/sys/kern/vfs_bio.c     Mon Jun  9 07:21:42 2014        (r267263)
+++ head/sys/kern/vfs_bio.c     Mon Jun  9 09:10:31 2014        (r267264)
@@ -476,7 +476,7 @@ bufspacewakeup(void)
                        break;
        }
        if (need_wakeup)
-               wakeup((void *)&needsbuffer);
+               wakeup(__DEVOLATILE(void *, &needsbuffer));
        rw_runlock(&nblock);
 }
 
@@ -559,7 +559,7 @@ bufcountadd(struct buf *bp)
                        break;
        }
        if (need_wakeup)
-               wakeup((void *)&needsbuffer);
+               wakeup(__DEVOLATILE(void *, &needsbuffer));
        rw_runlock(&nblock);
 }
 
@@ -2142,8 +2142,8 @@ getnewbuf_bufd_help(struct vnode *vp, in
                        if ((needsbuffer & flags) == 0)
                                break;
                }
-               error = rw_sleep((void *)&needsbuffer, &nblock, (PRIBIO + 4) |
-                   slpflag, waitmsg, slptimeo);
+               error = rw_sleep(__DEVOLATILE(void *, &needsbuffer), &nblock,
+                   (PRIBIO + 4) | slpflag, waitmsg, slptimeo);
                if (error != 0)
                        break;
        }
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