diff options
Diffstat (limited to 'fs/nfsd')
| -rw-r--r-- | fs/nfsd/nfs4proc.c | 50 |
1 files changed, 25 insertions, 25 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index aa769dfa756..4e41f65c702 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -1013,14 +1013,15 @@ enum nfsd4_op_flags { /* For rfc 5661 section 2.6.3.1.1: */ OP_HANDLES_WRONGSEC = 1 << 3, OP_IS_PUTFH_LIKE = 1 << 4, - OP_MODIFIES_SOMETHING = 1 << 5, /* op is non-idempotent */ -}; - -struct nfsd4_operation { - nfsd4op_func op_func; - u32 op_flags; - char *op_name; /* + * These are the ops whose result size we estimate before + * encoding, to avoid performing an op then not being able to + * respond or cache a response. This includes writes and setattrs + * as well as the operations usually called "nonidempotent": + */ + OP_MODIFIES_SOMETHING = 1 << 5, + /* + * Cache compounds containing these ops in the xid-based drc: * We use the DRC for compounds containing non-idempotent * operations, *except* those that are 4.1-specific (since * sessions provide their own EOS), and except for stateful @@ -1028,7 +1029,13 @@ struct nfsd4_operation { * (since sequence numbers provide EOS for open, lock, etc in * the v4.0 case). */ - bool op_cacheresult; + OP_CACHEME = 1 << 6, +}; + +struct nfsd4_operation { + nfsd4op_func op_func; + u32 op_flags; + char *op_name; /* Try to get response size before operation */ nfsd4op_rsize op_rsize_bop; }; @@ -1077,7 +1084,7 @@ static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op) bool nfsd4_cache_this_op(struct nfsd4_op *op) { - return OPDESC(op)->op_cacheresult; + return OPDESC(op)->op_flags & OP_CACHEME; } static bool need_wrongsec_check(struct svc_rqst *rqstp) @@ -1420,9 +1427,8 @@ static struct nfsd4_operation nfsd4_ops[] = { }, [OP_CREATE] = { .op_func = (nfsd4op_func)nfsd4_create, - .op_flags = OP_MODIFIES_SOMETHING, + .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, .op_name = "OP_CREATE", - .op_cacheresult = true, .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize, }, [OP_DELEGRETURN] = { @@ -1442,9 +1448,9 @@ static struct nfsd4_operation nfsd4_ops[] = { }, [OP_LINK] = { .op_func = (nfsd4op_func)nfsd4_link, - .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING, + .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING + | OP_CACHEME, .op_name = "OP_LINK", - .op_cacheresult = true, .op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize, }, [OP_LOCK] = { @@ -1534,16 +1540,14 @@ static struct nfsd4_operation nfsd4_ops[] = { }, [OP_REMOVE] = { .op_func = (nfsd4op_func)nfsd4_remove, - .op_flags = OP_MODIFIES_SOMETHING, + .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, .op_name = "OP_REMOVE", - .op_cacheresult = true, .op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize, }, [OP_RENAME] = { .op_func = (nfsd4op_func)nfsd4_rename, - .op_flags = OP_MODIFIES_SOMETHING, + .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, .op_name = "OP_RENAME", - .op_cacheresult = true, .op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize, }, [OP_RENEW] = { @@ -1575,24 +1579,21 @@ static struct nfsd4_operation nfsd4_ops[] = { [OP_SETATTR] = { .op_func = (nfsd4op_func)nfsd4_setattr, .op_name = "OP_SETATTR", - .op_flags = OP_MODIFIES_SOMETHING, - .op_cacheresult = true, + .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, .op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize, }, [OP_SETCLIENTID] = { .op_func = (nfsd4op_func)nfsd4_setclientid, .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS - | OP_MODIFIES_SOMETHING, + | OP_MODIFIES_SOMETHING | OP_CACHEME, .op_name = "OP_SETCLIENTID", - .op_cacheresult = true, .op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize, }, [OP_SETCLIENTID_CONFIRM] = { .op_func = (nfsd4op_func)nfsd4_setclientid_confirm, .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS - | OP_MODIFIES_SOMETHING, + | OP_MODIFIES_SOMETHING | OP_CACHEME, .op_name = "OP_SETCLIENTID_CONFIRM", - .op_cacheresult = true, .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, }, [OP_VERIFY] = { @@ -1601,9 +1602,8 @@ static struct nfsd4_operation nfsd4_ops[] = { }, [OP_WRITE] = { .op_func = (nfsd4op_func)nfsd4_write, - .op_flags = OP_MODIFIES_SOMETHING, + .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, .op_name = "OP_WRITE", - .op_cacheresult = true, .op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize, }, [OP_RELEASE_LOCKOWNER] = { |