K 10
svn:author
V 4
zack
K 8
svn:date
V 27
2011-07-16T08:51:09.982029Z
K 7
svn:log
V 626
Add DEXITCODE plumbing to NFS.

Isilon has the concept of an in-memory exit-code ring that saves the last exit
code of a function and allows for stack tracing. This is very helpful when
debugging tough issues.

This patch is essentially a no-op for BSD at this point, until we upstream
the dexitcode logic itself. The patch adds DEXITCODE calls to every NFS
function that returns an errno error code. A number of code paths were also
reorganized to have single exit paths, to reduce code duplication.

Submitted by:   David Kwan <dkwan@isilon.com>
Reviewed by:    rmacklem
Approved by:    zml (mentor)
MFC after:      2 weeks

END