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[PATCH] NFSv4: fix fattr size calculations 

Make nfs4 fattr size calculations more explicit, revising them downward a
 bit in the process.

 Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
J. Bruce Fields 2005-06-22 17:16:22 +00:00 committed by Trond Myklebust
parent 6b3b5496d7
commit 9692820696
1 changed files with 11 additions and 7 deletions
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18
fs/nfs/nfs4xdr.c
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@ -83,12 +83,16 @@ static int nfs_stat_to_errno(int);
#define encode_getfh_maxsz (op_encode_hdr_maxsz)
#define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
((3+NFS4_FHSIZE) >> 2))
#define encode_getattr_maxsz (op_encode_hdr_maxsz + 3)
#define nfs4_fattr_bitmap_maxsz 3
#define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
#define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
#define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
#define nfs4_fattr_bitmap_maxsz (36 + 2 * nfs4_name_maxsz)
#define decode_getattr_maxsz (op_decode_hdr_maxsz + 3 + \
nfs4_fattr_bitmap_maxsz)
/* This is based on getfattr, which uses the most attributes: */
#define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
3 + 3 + 3 + 2 * nfs4_name_maxsz))
#define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
nfs4_fattr_value_maxsz)
#define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
#define encode_savefh_maxsz (op_encode_hdr_maxsz)
#define decode_savefh_maxsz (op_decode_hdr_maxsz)
#define encode_fsinfo_maxsz (op_encode_hdr_maxsz + 2)
@ -123,11 +127,11 @@ static int nfs_stat_to_errno(int);
#define encode_symlink_maxsz (op_encode_hdr_maxsz + \
1 + nfs4_name_maxsz + \
nfs4_path_maxsz + \
nfs4_fattr_bitmap_maxsz)
nfs4_fattr_maxsz)
#define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
#define encode_create_maxsz (op_encode_hdr_maxsz + \
2 + nfs4_name_maxsz + \
nfs4_fattr_bitmap_maxsz)
nfs4_fattr_maxsz)
#define decode_create_maxsz (op_decode_hdr_maxsz + 8)
#define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
#define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
@ -206,7 +210,7 @@ static int nfs_stat_to_errno(int);
#define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
op_encode_hdr_maxsz + 4 + \
nfs4_fattr_bitmap_maxsz + \
nfs4_fattr_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \