5.10-stable review patch. If anyone has any objections, please let me know.
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From: Chuck Lever chuck.lever@oracle.com
[ Upstream commit 788f7183fba86b46074c16e7d57ea09302badff4 ]
Start off the conversion to xdr_stream by de-duplicating the functions that decode void arguments and encode void results.
Signed-off-by: Chuck Lever chuck.lever@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/nfsd/nfs2acl.c | 21 ++++----------------- fs/nfsd/nfs3acl.c | 8 ++++---- fs/nfsd/nfs3proc.c | 10 ++++------ fs/nfsd/nfs3xdr.c | 11 ----------- fs/nfsd/nfs4proc.c | 11 ++++------- fs/nfsd/nfs4xdr.c | 12 ------------ fs/nfsd/nfsd.h | 8 ++++++++ fs/nfsd/nfsproc.c | 25 ++++++++++++------------- fs/nfsd/nfssvc.c | 28 ++++++++++++++++++++++++++++ fs/nfsd/nfsxdr.c | 10 ---------- fs/nfsd/xdr.h | 2 -- fs/nfsd/xdr3.h | 2 -- fs/nfsd/xdr4.h | 2 -- 13 files changed, 64 insertions(+), 86 deletions(-)
diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c index 6a900f770dd23..b0f66604532a5 100644 --- a/fs/nfsd/nfs2acl.c +++ b/fs/nfsd/nfs2acl.c @@ -185,10 +185,6 @@ static __be32 nfsacld_proc_access(struct svc_rqst *rqstp) /* * XDR decode functions */ -static int nfsaclsvc_decode_voidarg(struct svc_rqst *rqstp, __be32 *p) -{ - return 1; -}
static int nfsaclsvc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p) { @@ -255,15 +251,6 @@ static int nfsaclsvc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p) * XDR encode functions */
-/* - * There must be an encoding function for void results so svc_process - * will work properly. - */ -static int nfsaclsvc_encode_voidres(struct svc_rqst *rqstp, __be32 *p) -{ - return xdr_ressize_check(rqstp, p); -} - /* GETACL */ static int nfsaclsvc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p) { @@ -378,10 +365,10 @@ struct nfsd3_voidargs { int dummy; }; static const struct svc_procedure nfsd_acl_procedures2[5] = { [ACLPROC2_NULL] = { .pc_func = nfsacld_proc_null, - .pc_decode = nfsaclsvc_decode_voidarg, - .pc_encode = nfsaclsvc_encode_voidres, - .pc_argsize = sizeof(struct nfsd3_voidargs), - .pc_ressize = sizeof(struct nfsd3_voidargs), + .pc_decode = nfssvc_decode_voidarg, + .pc_encode = nfssvc_encode_voidres, + .pc_argsize = sizeof(struct nfsd_voidargs), + .pc_ressize = sizeof(struct nfsd_voidres), .pc_cachetype = RC_NOCACHE, .pc_xdrressize = ST, }, diff --git a/fs/nfsd/nfs3acl.c b/fs/nfsd/nfs3acl.c index 34a394e50e1d1..7c30876a31a1b 100644 --- a/fs/nfsd/nfs3acl.c +++ b/fs/nfsd/nfs3acl.c @@ -245,10 +245,10 @@ struct nfsd3_voidargs { int dummy; }; static const struct svc_procedure nfsd_acl_procedures3[3] = { [ACLPROC3_NULL] = { .pc_func = nfsd3_proc_null, - .pc_decode = nfs3svc_decode_voidarg, - .pc_encode = nfs3svc_encode_voidres, - .pc_argsize = sizeof(struct nfsd3_voidargs), - .pc_ressize = sizeof(struct nfsd3_voidargs), + .pc_decode = nfssvc_decode_voidarg, + .pc_encode = nfssvc_encode_voidres, + .pc_argsize = sizeof(struct nfsd_voidargs), + .pc_ressize = sizeof(struct nfsd_voidres), .pc_cachetype = RC_NOCACHE, .pc_xdrressize = ST, }, diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c index eba84417406ca..3257233d1a655 100644 --- a/fs/nfsd/nfs3proc.c +++ b/fs/nfsd/nfs3proc.c @@ -697,8 +697,6 @@ nfsd3_proc_commit(struct svc_rqst *rqstp) #define nfsd3_attrstatres nfsd3_attrstat #define nfsd3_wccstatres nfsd3_attrstat #define nfsd3_createres nfsd3_diropres -#define nfsd3_voidres nfsd3_voidargs -struct nfsd3_voidargs { int dummy; };
#define ST 1 /* status*/ #define FH 17 /* filehandle with length */ @@ -709,10 +707,10 @@ struct nfsd3_voidargs { int dummy; }; static const struct svc_procedure nfsd_procedures3[22] = { [NFS3PROC_NULL] = { .pc_func = nfsd3_proc_null, - .pc_decode = nfs3svc_decode_voidarg, - .pc_encode = nfs3svc_encode_voidres, - .pc_argsize = sizeof(struct nfsd3_voidargs), - .pc_ressize = sizeof(struct nfsd3_voidres), + .pc_decode = nfssvc_decode_voidarg, + .pc_encode = nfssvc_encode_voidres, + .pc_argsize = sizeof(struct nfsd_voidargs), + .pc_ressize = sizeof(struct nfsd_voidres), .pc_cachetype = RC_NOCACHE, .pc_xdrressize = ST, }, diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c index 27b24823f7c42..0d75d201db1b3 100644 --- a/fs/nfsd/nfs3xdr.c +++ b/fs/nfsd/nfs3xdr.c @@ -304,11 +304,6 @@ void fill_post_wcc(struct svc_fh *fhp) /* * XDR decode functions */ -int -nfs3svc_decode_voidarg(struct svc_rqst *rqstp, __be32 *p) -{ - return 1; -}
int nfs3svc_decode_fhandle(struct svc_rqst *rqstp, __be32 *p) @@ -642,12 +637,6 @@ nfs3svc_decode_commitargs(struct svc_rqst *rqstp, __be32 *p) * XDR encode functions */
-int -nfs3svc_encode_voidres(struct svc_rqst *rqstp, __be32 *p) -{ - return xdr_ressize_check(rqstp, p); -} - /* GETATTR */ int nfs3svc_encode_attrstat(struct svc_rqst *rqstp, __be32 *p) diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index c01b6f7462fcb..55a46e7c152b9 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -3285,16 +3285,13 @@ static const char *nfsd4_op_name(unsigned opnum) return "unknown_operation"; }
-#define nfsd4_voidres nfsd4_voidargs -struct nfsd4_voidargs { int dummy; }; - static const struct svc_procedure nfsd_procedures4[2] = { [NFSPROC4_NULL] = { .pc_func = nfsd4_proc_null, - .pc_decode = nfs4svc_decode_voidarg, - .pc_encode = nfs4svc_encode_voidres, - .pc_argsize = sizeof(struct nfsd4_voidargs), - .pc_ressize = sizeof(struct nfsd4_voidres), + .pc_decode = nfssvc_decode_voidarg, + .pc_encode = nfssvc_encode_voidres, + .pc_argsize = sizeof(struct nfsd_voidargs), + .pc_ressize = sizeof(struct nfsd_voidres), .pc_cachetype = RC_NOCACHE, .pc_xdrressize = 1, }, diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index fd9107332a20f..c176d0090f7c8 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -5288,12 +5288,6 @@ nfsd4_encode_replay(struct xdr_stream *xdr, struct nfsd4_op *op) p = xdr_encode_opaque_fixed(p, rp->rp_buf, rp->rp_buflen); }
-int -nfs4svc_encode_voidres(struct svc_rqst *rqstp, __be32 *p) -{ - return xdr_ressize_check(rqstp, p); -} - void nfsd4_release_compoundargs(struct svc_rqst *rqstp) { struct nfsd4_compoundargs *args = rqstp->rq_argp; @@ -5311,12 +5305,6 @@ void nfsd4_release_compoundargs(struct svc_rqst *rqstp) } }
-int -nfs4svc_decode_voidarg(struct svc_rqst *rqstp, __be32 *p) -{ - return 1; -} - int nfs4svc_decode_compoundargs(struct svc_rqst *rqstp, __be32 *p) { diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h index 4362d295ed340..3eaa81e001f9c 100644 --- a/fs/nfsd/nfsd.h +++ b/fs/nfsd/nfsd.h @@ -73,6 +73,14 @@ extern unsigned long nfsd_drc_mem_used;
extern const struct seq_operations nfs_exports_op;
+/* + * Common void argument and result helpers + */ +struct nfsd_voidargs { }; +struct nfsd_voidres { }; +int nfssvc_decode_voidarg(struct svc_rqst *rqstp, __be32 *p); +int nfssvc_encode_voidres(struct svc_rqst *rqstp, __be32 *p); + /* * Function prototypes. */ diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c index bbd01e8397f6e..dbd8d36046539 100644 --- a/fs/nfsd/nfsproc.c +++ b/fs/nfsd/nfsproc.c @@ -609,7 +609,6 @@ nfsd_proc_statfs(struct svc_rqst *rqstp) * NFSv2 Server procedures. * Only the results of non-idempotent operations are cached. */ -struct nfsd_void { int dummy; };
#define ST 1 /* status */ #define FH 8 /* filehandle */ @@ -618,10 +617,10 @@ struct nfsd_void { int dummy; }; static const struct svc_procedure nfsd_procedures2[18] = { [NFSPROC_NULL] = { .pc_func = nfsd_proc_null, - .pc_decode = nfssvc_decode_void, - .pc_encode = nfssvc_encode_void, - .pc_argsize = sizeof(struct nfsd_void), - .pc_ressize = sizeof(struct nfsd_void), + .pc_decode = nfssvc_decode_voidarg, + .pc_encode = nfssvc_encode_voidres, + .pc_argsize = sizeof(struct nfsd_voidargs), + .pc_ressize = sizeof(struct nfsd_voidres), .pc_cachetype = RC_NOCACHE, .pc_xdrressize = 0, }, @@ -647,10 +646,10 @@ static const struct svc_procedure nfsd_procedures2[18] = { }, [NFSPROC_ROOT] = { .pc_func = nfsd_proc_root, - .pc_decode = nfssvc_decode_void, - .pc_encode = nfssvc_encode_void, - .pc_argsize = sizeof(struct nfsd_void), - .pc_ressize = sizeof(struct nfsd_void), + .pc_decode = nfssvc_decode_voidarg, + .pc_encode = nfssvc_encode_voidres, + .pc_argsize = sizeof(struct nfsd_voidargs), + .pc_ressize = sizeof(struct nfsd_voidres), .pc_cachetype = RC_NOCACHE, .pc_xdrressize = 0, }, @@ -685,10 +684,10 @@ static const struct svc_procedure nfsd_procedures2[18] = { }, [NFSPROC_WRITECACHE] = { .pc_func = nfsd_proc_writecache, - .pc_decode = nfssvc_decode_void, - .pc_encode = nfssvc_encode_void, - .pc_argsize = sizeof(struct nfsd_void), - .pc_ressize = sizeof(struct nfsd_void), + .pc_decode = nfssvc_decode_voidarg, + .pc_encode = nfssvc_encode_voidres, + .pc_argsize = sizeof(struct nfsd_voidargs), + .pc_ressize = sizeof(struct nfsd_voidres), .pc_cachetype = RC_NOCACHE, .pc_xdrressize = 0, }, diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c index 311b287c5024f..c81d49b07971c 100644 --- a/fs/nfsd/nfssvc.c +++ b/fs/nfsd/nfssvc.c @@ -1107,6 +1107,34 @@ int nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp) return 1; }
+/** + * nfssvc_decode_voidarg - Decode void arguments + * @rqstp: Server RPC transaction context + * @p: buffer containing arguments to decode + * + * Return values: + * %0: Arguments were not valid + * %1: Decoding was successful + */ +int nfssvc_decode_voidarg(struct svc_rqst *rqstp, __be32 *p) +{ + return 1; +} + +/** + * nfssvc_encode_voidres - Encode void results + * @rqstp: Server RPC transaction context + * @p: buffer in which to encode results + * + * Return values: + * %0: Local error while encoding + * %1: Encoding was successful + */ +int nfssvc_encode_voidres(struct svc_rqst *rqstp, __be32 *p) +{ + return xdr_ressize_check(rqstp, p); +} + int nfsd_pool_stats_open(struct inode *inode, struct file *file) { int ret; diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c index 9e00a902113e3..7aa6e8aca2c1a 100644 --- a/fs/nfsd/nfsxdr.c +++ b/fs/nfsd/nfsxdr.c @@ -192,11 +192,6 @@ __be32 *nfs2svc_encode_fattr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *f /* * XDR decode functions */ -int -nfssvc_decode_void(struct svc_rqst *rqstp, __be32 *p) -{ - return xdr_argsize_check(rqstp, p); -}
int nfssvc_decode_fhandle(struct svc_rqst *rqstp, __be32 *p) @@ -423,11 +418,6 @@ nfssvc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p) /* * XDR encode functions */ -int -nfssvc_encode_void(struct svc_rqst *rqstp, __be32 *p) -{ - return xdr_ressize_check(rqstp, p); -}
int nfssvc_encode_stat(struct svc_rqst *rqstp, __be32 *p) diff --git a/fs/nfsd/xdr.h b/fs/nfsd/xdr.h index b8cc6a4b2e0ec..edd87688ff863 100644 --- a/fs/nfsd/xdr.h +++ b/fs/nfsd/xdr.h @@ -144,7 +144,6 @@ union nfsd_xdrstore { #define NFS2_SVC_XDRSIZE sizeof(union nfsd_xdrstore)
-int nfssvc_decode_void(struct svc_rqst *, __be32 *); int nfssvc_decode_fhandle(struct svc_rqst *, __be32 *); int nfssvc_decode_sattrargs(struct svc_rqst *, __be32 *); int nfssvc_decode_diropargs(struct svc_rqst *, __be32 *); @@ -156,7 +155,6 @@ int nfssvc_decode_readlinkargs(struct svc_rqst *, __be32 *); int nfssvc_decode_linkargs(struct svc_rqst *, __be32 *); int nfssvc_decode_symlinkargs(struct svc_rqst *, __be32 *); int nfssvc_decode_readdirargs(struct svc_rqst *, __be32 *); -int nfssvc_encode_void(struct svc_rqst *, __be32 *); int nfssvc_encode_stat(struct svc_rqst *, __be32 *); int nfssvc_encode_attrstat(struct svc_rqst *, __be32 *); int nfssvc_encode_diropres(struct svc_rqst *, __be32 *); diff --git a/fs/nfsd/xdr3.h b/fs/nfsd/xdr3.h index ae6fa6c9cb467..456fcd7a10383 100644 --- a/fs/nfsd/xdr3.h +++ b/fs/nfsd/xdr3.h @@ -273,7 +273,6 @@ union nfsd3_xdrstore {
#define NFS3_SVC_XDRSIZE sizeof(union nfsd3_xdrstore)
-int nfs3svc_decode_voidarg(struct svc_rqst *, __be32 *); int nfs3svc_decode_fhandle(struct svc_rqst *, __be32 *); int nfs3svc_decode_sattrargs(struct svc_rqst *, __be32 *); int nfs3svc_decode_diropargs(struct svc_rqst *, __be32 *); @@ -290,7 +289,6 @@ int nfs3svc_decode_symlinkargs(struct svc_rqst *, __be32 *); int nfs3svc_decode_readdirargs(struct svc_rqst *, __be32 *); int nfs3svc_decode_readdirplusargs(struct svc_rqst *, __be32 *); int nfs3svc_decode_commitargs(struct svc_rqst *, __be32 *); -int nfs3svc_encode_voidres(struct svc_rqst *, __be32 *); int nfs3svc_encode_attrstat(struct svc_rqst *, __be32 *); int nfs3svc_encode_wccstat(struct svc_rqst *, __be32 *); int nfs3svc_encode_diropres(struct svc_rqst *, __be32 *); diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h index 679d40af1bbb1..37f89ad5e9923 100644 --- a/fs/nfsd/xdr4.h +++ b/fs/nfsd/xdr4.h @@ -781,8 +781,6 @@ set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
bool nfsd4_mach_creds_match(struct nfs4_client *cl, struct svc_rqst *rqstp); -int nfs4svc_decode_voidarg(struct svc_rqst *, __be32 *); -int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *); int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *); int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *); __be32 nfsd4_check_resp_size(struct nfsd4_compoundres *, u32);