[PATCH] knfsd: nfsd4: clarify units of COMPOUND_SLACK_SPACE

A comment here incorrectly states that "slack_space" is measured in words, not
bytes.  Remove the comment, and adjust a variable name and a few comments to
clarify the situation.

This is pure cleanup; there should be no change in functionality.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/linux/nfsd/nfsd.h b/include/linux/nfsd/nfsd.h
index edb54c3..0727774 100644
--- a/include/linux/nfsd/nfsd.h
+++ b/include/linux/nfsd/nfsd.h
@@ -275,12 +275,12 @@
  * we might process an operation with side effects, and be unable to
  * tell the client that the operation succeeded.
  *
- * COMPOUND_SLACK_SPACE - this is the minimum amount of buffer space
+ * COMPOUND_SLACK_SPACE - this is the minimum bytes of buffer space
  * needed to encode an "ordinary" _successful_ operation.  (GETATTR,
  * READ, READDIR, and READLINK have their own buffer checks.)  if we
  * fall below this level, we fail the next operation with NFS4ERR_RESOURCE.
  *
- * COMPOUND_ERR_SLACK_SPACE - this is the minimum amount of buffer space
+ * COMPOUND_ERR_SLACK_SPACE - this is the minimum bytes of buffer space
  * needed to encode an operation which has failed with NFS4ERR_RESOURCE.
  * care is taken to ensure that we never fall below this level for any
  * reason.