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NFSv4.2: Fix up READ_PLUS alignment

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Assume that the first segment will be a DATA segment, and place the data
directly into the xdr pages so it doesn't need to be shifted.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Anna Schumaker 2022-11-30 13:15:26 -05:00 committed by Trond Myklebust
parent 36357fe74e
commit f8527028a7
1 changed files with 4 additions and 3 deletions
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7
fs/nfs/nfs42xdr.c
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@ -47,13 +47,14 @@
#define decode_deallocate_maxsz (op_decode_hdr_maxsz)
#define encode_read_plus_maxsz (op_encode_hdr_maxsz + \
encode_stateid_maxsz + 3)
#define NFS42_READ_PLUS_SEGMENT_SIZE (1 /* data_content4 */ + \
#define NFS42_READ_PLUS_DATA_SEGMENT_SIZE \
(1 /* data_content4 */ + \
2 /* data_info4.di_offset */ + \
2 /* data_info4.di_length */)
1 /* data_info4.di_length */)
#define decode_read_plus_maxsz (op_decode_hdr_maxsz + \
1 /* rpr_eof */ + \
1 /* rpr_contents count */ + \
2 * NFS42_READ_PLUS_SEGMENT_SIZE)
NFS42_READ_PLUS_DATA_SEGMENT_SIZE)
#define encode_seek_maxsz (op_encode_hdr_maxsz + \
encode_stateid_maxsz + \
2 /* offset */ + \