kern/151305: [patch] - CTASSERT(sizeof(struct jmvrec) == JREC_SIZE)

[Svatopluk Kraus]

>Number:         151305
>Category:       kern
>Synopsis:       [patch] - CTASSERT(sizeof(struct jmvrec) == JREC_SIZE)
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Oct 08 13:20:03 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Svatopluk Kraus
>Release:        current
>Organization:
>Environment:
coldfire port
>Description:
A macro CTASSERT() hits in colfire port I work on. It is possibly due to use of GNU GCC compiler -Os option (size optimalization). It hits on struct jmvrec in sys/ufs/ffs/fs.h.
>How-To-Repeat:

>Fix:
I arranged the struct definition (a size of unused field).

Patch attached with submission follows:

Index: sys/ufs/ffs/fs.h
===================================================================
--- sys/ufs/ffs/fs.h    (revision 213567)
+++ sys/ufs/ffs/fs.h    (working copy)
@@ -696,7 +696,7 @@
        uint32_t        jm_op;
        ino_t           jm_ino;
        ino_t           jm_parent;
-       uint16_t        jm_unused;
+       uint32_t        jm_unused;
        off_t           jm_oldoff;
        off_t           jm_newoff;
 };


>Release-Note:
>Audit-Trail:
>Unformatted: