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Add a comment noting that the NFS code assumes that the

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values of error numbers in sys/errno.h will be the same
as the ones specified by the NFS RFCs and that the code
needs to be fixed if error numbers are changed in sys/errno.h.

Suggested by:	Peter Jeremy
MFC after:	2 weeks
This commit is contained in:
Rick Macklem 2011-05-04 22:02:33 +00:00
parent fc0818fef3
commit 5a816b92a3
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=221462
1 changed files with 8 additions and 0 deletions
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8
sys/fs/nfs/nfsproto.h
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@ -66,6 +66,14 @@
#define NFSV4_SMALLSTR 50 /* Strings small enough for stack */
/* Stat numbers for rpc returns (version 2, 3 and 4) */
/*
* These numbers are hard-wired in the RFCs, so they can't be changed.
* The code currently assumes that the ones < 10000 are the same as
* sys/errno.h and that sys/errno.h will never go as high as 10000.
* If the value in sys/errno.h of any entry listed below is changed,
* the NFS code must be modified to do the mapping between them.
* (You can ignore NFSERR_WFLUSH, since it is never actually used.)
*/
#define NFSERR_OK 0
#define NFSERR_PERM 1
#define NFSERR_NOENT 2