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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-07-02 13:57:28 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-07-10 23:40:39 -0400 |
| commit | 2cebf82883f49fd26148da5d9a43d1b4363f1d59 (patch) | |
| tree | 0d3b656135a72bc0ef95fa8148767bbdcd9c2146 /fs/nfs/nfs4xdr.c | |
| parent | bd625ba80d84d9de003b8a4bf61fd937b82aca09 (diff) | |
| download | linux-2cebf82883f49fd26148da5d9a43d1b4363f1d59.tar.bz2 | |
NFSv4: Fix the underestimate of NFSv4 open request size
The maximum size depends on the filename size and a number of other
elements which are currently not being counted.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/nfs4xdr.c')
| -rw-r--r-- | fs/nfs/nfs4xdr.c | 63 |
1 files changed, 45 insertions, 18 deletions
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 932bc79a9028..f6068bf3823a 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -70,7 +70,8 @@ static int nfs4_stat_to_errno(int); /* lock,open owner id: * we currently use size 1 (u32) out of (NFS4_OPAQUE_LIMIT >> 2) */ -#define owner_id_maxsz (1 + 1) +#define open_owner_id_maxsz (1 + 1) +#define lock_owner_id_maxsz (1 + 1) #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) #define op_encode_hdr_maxsz (1) @@ -120,6 +121,25 @@ static int nfs4_stat_to_errno(int); (op_decode_hdr_maxsz) #define encode_lookup_maxsz (op_encode_hdr_maxsz + \ 1 + ((3 + NFS4_FHSIZE) >> 2)) +#define encode_share_access_maxsz \ + (2) +#define encode_createmode_maxsz (1 + nfs4_fattr_maxsz) +#define encode_opentype_maxsz (1 + encode_createmode_maxsz) +#define encode_claim_null_maxsz (1 + nfs4_name_maxsz) +#define encode_open_maxsz (op_encode_hdr_maxsz + \ + 2 + encode_share_access_maxsz + 2 + \ + open_owner_id_maxsz + \ + encode_opentype_maxsz + \ + encode_claim_null_maxsz) +#define decode_ace_maxsz (3 + nfs4_owner_maxsz) +#define decode_delegation_maxsz (1 + XDR_QUADLEN(NFS4_STATEID_SIZE) + 1 + \ + decode_ace_maxsz) +#define decode_change_info_maxsz (5) +#define decode_open_maxsz (op_decode_hdr_maxsz + \ + XDR_QUADLEN(NFS4_STATEID_SIZE) + \ + decode_change_info_maxsz + 1 + \ + nfs4_fattr_bitmap_maxsz + \ + decode_delegation_maxsz) #define encode_remove_maxsz (op_encode_hdr_maxsz + \ nfs4_name_maxsz) #define encode_rename_maxsz (op_encode_hdr_maxsz + \ @@ -136,7 +156,9 @@ static int nfs4_stat_to_errno(int); #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2 + nfs4_name_maxsz + \ nfs4_fattr_maxsz) -#define decode_create_maxsz (op_decode_hdr_maxsz + 8) +#define decode_create_maxsz (op_decode_hdr_maxsz + \ + decode_change_info_maxsz + \ + nfs4_fattr_bitmap_maxsz) #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ @@ -176,16 +198,21 @@ static int nfs4_stat_to_errno(int); op_decode_hdr_maxsz + 2 + \ decode_getattr_maxsz) #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ - encode_putfh_maxsz + \ - op_encode_hdr_maxsz + \ - 13 + 3 + 2 + 64 + \ - encode_getattr_maxsz + \ - encode_getfh_maxsz) + encode_putfh_maxsz + \ + encode_savefh_maxsz + \ + encode_open_maxsz + \ + encode_getfh_maxsz + \ + encode_getattr_maxsz + \ + encode_restorefh_maxsz + \ + encode_getattr_maxsz) #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ - decode_putfh_maxsz + \ - op_decode_hdr_maxsz + 4 + 5 + 2 + 3 + \ - decode_getattr_maxsz + \ - decode_getfh_maxsz) + decode_putfh_maxsz + \ + decode_savefh_maxsz + \ + decode_open_maxsz + \ + decode_getfh_maxsz + \ + decode_getattr_maxsz + \ + decode_restorefh_maxsz + \ + decode_getattr_maxsz) #define NFS4_enc_open_confirm_sz \ (compound_encode_hdr_maxsz + \ encode_putfh_maxsz + \ @@ -195,12 +222,12 @@ static int nfs4_stat_to_errno(int); op_decode_hdr_maxsz + 4) #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ encode_putfh_maxsz + \ - op_encode_hdr_maxsz + \ - 11) + encode_open_maxsz + \ + encode_getattr_maxsz) #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ decode_putfh_maxsz + \ - op_decode_hdr_maxsz + \ - 4 + 5 + 2 + 3) + decode_open_maxsz + \ + decode_getattr_maxsz) #define NFS4_enc_open_downgrade_sz \ (compound_encode_hdr_maxsz + \ encode_putfh_maxsz + \ @@ -258,19 +285,19 @@ static int nfs4_stat_to_errno(int); op_encode_hdr_maxsz + \ 1 + 1 + 2 + 2 + \ 1 + 4 + 1 + 2 + \ - owner_id_maxsz) + lock_owner_id_maxsz) #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ decode_putfh_maxsz + \ decode_getattr_maxsz + \ op_decode_hdr_maxsz + \ 2 + 2 + 1 + 2 + \ - owner_id_maxsz) + lock_owner_id_maxsz) #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ encode_putfh_maxsz + \ encode_getattr_maxsz + \ op_encode_hdr_maxsz + \ 1 + 2 + 2 + 2 + \ - owner_id_maxsz) + lock_owner_id_maxsz) #define NFS4_dec_lockt_sz (NFS4_dec_lock_sz) #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ encode_putfh_maxsz + \ |