NFSv4 fix acl retrieval over krb5i/krb5p mounts

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For the krb5i and krb5p mount, it was problematic to truncate the
received ACL to the provided buffer because an integrity check
could not be preformed.

Instead, provide enough pages to accommodate the largest buffer
bounded by the largest RPC receive buffer size.

Note: I don't think it's possible for the ACL to be truncated now.
Thus NFS4_ACL_TRUNC flag and related code could be possibly
removed but since I'm unsure, I'm leaving it.

v2: needs +1 page.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

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Olga Kornievskaia 2020-01-02 17:09:54 -05:00 • committed by Anna Schumaker

parent c74dfe97c1

commit 62a1573fcf

1 changed files with 13 additions and 5 deletions

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fs/nfs/nfs4proc.c

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