Sophie: coda-doc-5.2.0-4mdk noarch

coda-doc-5.2.0-4mdk.noarch.rpm

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<H2><A NAME="s4">4. Server RVM layout </A></H2>

<P>The initial RVM layout of a coda server is simple:
<P>
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<PRE>
    boolean_t       already_initialized;
    struct VolHead VolumeList[MAXVOLS];
    struct VnodeDiskObject    *SmallVnodeFreeList[SMALLFREESIZE];
    struct VnodeDiskObject    *LargeVnodeFreeList[LARGEFREESIZE];
    short    SmallVnodeIndex;
    short    LargeVnodeIndex;
    VolumeId    MaxVolId;
    long    Reserved[MAXVOLS];
</PRE>
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<P>These fields are accessed through the CAMLIB_REC macro. The
SmallVnodeIndex is the index of the highest pointer in the array,
pointing to a free vnode.  
<P>The RVM layout is initialized in coda_init (recovc.cc) which allocates
small and large vnodes in RVM for each of the entries in the free
vnode list arrays. The vnodes are zeroed out. 
<P>
<H2><A NAME="ss4.1">4.1 Vnodes for volumes </A>
</H2>

<P>
<P>The VolumeData structure has a pointer to the arrays: smallVnodeLists
and largeVnodeLists. 
<P>
<H2><A NAME="ss4.2">4.2 Resolution Logs for vnode lists. </A>
</H2>

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