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NFSv4.1 Fix gdia_maxcount calculation to fit in ca_maxresponsesize

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The GETDEVICEINFO gdia_maxcount represents all of the data being returned
within the GETDEVICEINFO4resok structure and includes the XDR overhead.

The CREATE_SESSION ca_maxresponsesize is the maximum reply and includes the RPC
headers (including security flavor credentials and verifiers).

Split out the struct pnfs_device field maxcount which is the gdia_maxcount
from the pglen field which is the reply (the total) buffer length.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Andy Adamson
2013-06-25 19:02:53 -04:00
committed by Trond Myklebust
parent ffa57b9e53
commit f1c097be2b
4 changed files with 11 additions and 2 deletions
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fs/nfs/pnfs.h
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@@ -149,9 +149,10 @@ struct pnfs_device {
struct nfs4_deviceid dev_id;
unsigned int layout_type;
unsigned int mincount;
unsigned int maxcount; /* gdia_maxcount */
struct page **pages;
unsigned int pgbase;
unsigned int pglen;
unsigned int pglen; /* reply buffer length */
};
#define NFS4_PNFS_GETDEVLIST_MAXNUM 16