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nfsd41: implement NFS4_SHARE_WANT_NO_DELEG, NFS4_OPEN_DELEGATE_NONE_EXT, why_no_deleg

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Respect client request for not getting a delegation in NFSv4.1
Appropriately return delegation "type" NFS4_OPEN_DELEGATE_NONE_EXT
and WND4_NOT_WANTED reason.

[nfsd41: add missing break when encoding op_why_no_deleg]
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Benny Halevy 2012-02-16 20:57:17 +02:00 • committed by J. Bruce Fields
parent 03cfb42025
commit d24433cdc9
4 changed files with 82 additions and 8 deletions
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15
include/linux/nfs4.h
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@ -441,7 +441,20 @@ enum limit_by4 {
enum open_delegation_type4 {
NFS4_OPEN_DELEGATE_NONE = 0,
NFS4_OPEN_DELEGATE_READ = 1,
NFS4_OPEN_DELEGATE_WRITE = 2
NFS4_OPEN_DELEGATE_WRITE = 2,
NFS4_OPEN_DELEGATE_NONE_EXT = 3, /* 4.1 */
};
enum why_no_delegation4 { /* new to v4.1 */
WND4_NOT_WANTED = 0,
WND4_CONTENTION = 1,
WND4_RESOURCE = 2,
WND4_NOT_SUPP_FTYPE = 3,
WND4_WRITE_DELEG_NOT_SUPP_FTYPE = 4,
WND4_NOT_SUPP_UPGRADE = 5,
WND4_NOT_SUPP_DOWNGRADE = 6,
WND4_CANCELLED = 7,
WND4_IS_DIR = 8,
};
enum lock_type4 {