[PATCH] knfsd: nfsd4: pass saved and current fh together into nfsd4 operations

Pass the saved and current filehandles together into all the nfsd4 compound
operations.

I want a unified interface to these operations so we can just call them by
pointer and throw out the huge switch statement.

Also I'll eventually want a structure like this--that holds the state used
during compound processing--for deferral.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 15 insertions, 7 deletions

diff --git a/include/linux/nfsd/xdr4.h b/include/linux/nfsd/xdr4.h
index 45ca01b5f84..594b8ca6975 100644
--- a/include/linux/nfsd/xdr4.h
+++ b/include/linux/nfsd/xdr4.h
@@ -44,6 +44,11 @@
 #define NFSD4_MAX_TAGLEN        128
 #define XDR_LEN(n)                     (((n) + 3) & ~3)
 
+struct nfsd4_compound_state {
+        struct svc_fh current_fh;
+        struct svc_fh save_fh;
+};
+
 struct nfsd4_change_info {
         u32             atomic;
         u32             before_ctime_sec;
@@ -437,20 +442,23 @@ extern __be32 nfsd4_process_open1(struct nfsd4_open *open);
 extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
                 struct svc_fh *current_fh, struct nfsd4_open *open);
 extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
-                struct svc_fh *current_fh, struct nfsd4_open_confirm *oc,
+                struct nfsd4_compound_state *, struct nfsd4_open_confirm *oc,
                 struct nfs4_stateowner **);
-extern __be32 nfsd4_close(struct svc_rqst *rqstp, struct svc_fh *current_fh,
+extern __be32 nfsd4_close(struct svc_rqst *rqstp,
+                struct nfsd4_compound_state *,
                 struct nfsd4_close *close,
                 struct nfs4_stateowner **replay_owner);
 extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
-                struct svc_fh *current_fh, struct nfsd4_open_downgrade *od,
+                struct nfsd4_compound_state *, struct nfsd4_open_downgrade *od,
                 struct nfs4_stateowner **replay_owner);
-extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh,
+extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
                 struct nfsd4_lock *lock,
                 struct nfs4_stateowner **replay_owner);
-extern __be32 nfsd4_lockt(struct svc_rqst *rqstp, struct svc_fh *current_fh,
+extern __be32 nfsd4_lockt(struct svc_rqst *rqstp,
+                struct nfsd4_compound_state *,
                 struct nfsd4_lockt *lockt);
-extern __be32 nfsd4_locku(struct svc_rqst *rqstp, struct svc_fh *current_fh,
+extern __be32 nfsd4_locku(struct svc_rqst *rqstp,
+                struct nfsd4_compound_state *,
                 struct nfsd4_locku *locku,
                 struct nfs4_stateowner **replay_owner);
 extern __be32
@@ -458,7 +466,7 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp,
                 struct nfsd4_release_lockowner *rlockowner);
 extern void nfsd4_release_compoundargs(struct nfsd4_compoundargs *);
 extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
-                struct svc_fh *current_fh, struct nfsd4_delegreturn *dr);
+                struct nfsd4_compound_state *, struct nfsd4_delegreturn *dr);
 #endif
 
 /*