From: Nagendra S Tomar <[email protected]>
Functions for computing target filehandles' hash for NFSv3.
Signed-off-by: Nagendra S Tomar <[email protected]>
---
fs/nfs/nfs3xdr.c | 154 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 154 insertions(+)
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index ed1c83738c30..3d90686cd77d 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -817,6 +817,13 @@ static void nfs3_xdr_enc_getattr3args(struct rpc_rqst *req,
encode_nfs_fh3(xdr, fh);
}
+static u32 nfs3_fh_hash_getattr(const void *data)
+{
+ const struct nfs_fh *fh = data;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
/*
* 3.3.2 SETATTR3args
*
@@ -858,6 +865,14 @@ static void nfs3_xdr_enc_setattr3args(struct rpc_rqst *req,
encode_sattrguard3(xdr, args);
}
+static u32 nfs3_fh_hash_setattr(const void *data)
+{
+ const struct nfs3_sattrargs *args = data;
+ const struct nfs_fh *fh = args->fh;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
/*
* 3.3.3 LOOKUP3args
*
@@ -874,6 +889,14 @@ static void nfs3_xdr_enc_lookup3args(struct rpc_rqst *req,
encode_diropargs3(xdr, args->fh, args->name, args->len);
}
+static u32 nfs3_fh_hash_lookup(const void *data)
+{
+ const struct nfs3_diropargs *args = data;
+ const struct nfs_fh *fh = args->fh;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
/*
* 3.3.4 ACCESS3args
*
@@ -898,6 +921,14 @@ static void nfs3_xdr_enc_access3args(struct rpc_rqst *req,
encode_access3args(xdr, args);
}
+static u32 nfs3_fh_hash_access(const void *data)
+{
+ const struct nfs3_accessargs *args = data;
+ const struct nfs_fh *fh = args->fh;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
/*
* 3.3.5 READLINK3args
*
@@ -916,6 +947,14 @@ static void nfs3_xdr_enc_readlink3args(struct rpc_rqst *req,
NFS3_readlinkres_sz - NFS3_pagepad_sz);
}
+static u32 nfs3_fh_hash_readlink(const void *data)
+{
+ const struct nfs3_readlinkargs *args = data;
+ const struct nfs_fh *fh = args->fh;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
/*
* 3.3.6 READ3args
*
@@ -951,6 +990,14 @@ static void nfs3_xdr_enc_read3args(struct rpc_rqst *req,
req->rq_rcv_buf.flags |= XDRBUF_READ;
}
+static u32 nfs3_fh_hash_read(const void *data)
+{
+ const struct nfs_pgio_args *args = data;
+ const struct nfs_fh *fh = args->fh;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
/*
* 3.3.7 WRITE3args
*
@@ -993,6 +1040,14 @@ static void nfs3_xdr_enc_write3args(struct rpc_rqst *req,
xdr->buf->flags |= XDRBUF_WRITE;
}
+static u32 nfs3_fh_hash_write(const void *data)
+{
+ const struct nfs_pgio_args *args = data;
+ const struct nfs_fh *fh = args->fh;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
/*
* 3.3.8 CREATE3args
*
@@ -1043,6 +1098,14 @@ static void nfs3_xdr_enc_create3args(struct rpc_rqst *req,
encode_createhow3(xdr, args, rpc_rqst_userns(req));
}
+static u32 nfs3_fh_hash_create(const void *data)
+{
+ const struct nfs3_createargs *args = data;
+ const struct nfs_fh *fh = args->fh;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
/*
* 3.3.9 MKDIR3args
*
@@ -1061,6 +1124,14 @@ static void nfs3_xdr_enc_mkdir3args(struct rpc_rqst *req,
encode_sattr3(xdr, args->sattr, rpc_rqst_userns(req));
}
+static u32 nfs3_fh_hash_mkdir(const void *data)
+{
+ const struct nfs3_mkdirargs *args = data;
+ const struct nfs_fh *fh = args->fh;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
/*
* 3.3.10 SYMLINK3args
*
@@ -1095,6 +1166,14 @@ static void nfs3_xdr_enc_symlink3args(struct rpc_rqst *req,
xdr->buf->flags |= XDRBUF_WRITE;
}
+static u32 nfs3_fh_hash_symlink(const void *data)
+{
+ const struct nfs3_symlinkargs *args = data;
+ const struct nfs_fh *fh = args->fromfh;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
/*
* 3.3.11 MKNOD3args
*
@@ -1159,6 +1238,14 @@ static void nfs3_xdr_enc_mknod3args(struct rpc_rqst *req,
encode_mknoddata3(xdr, args, rpc_rqst_userns(req));
}
+static u32 nfs3_fh_hash_mknod(const void *data)
+{
+ const struct nfs3_mknodargs *args = data;
+ const struct nfs_fh *fh = args->fh;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
/*
* 3.3.12 REMOVE3args
*
@@ -1175,6 +1262,14 @@ static void nfs3_xdr_enc_remove3args(struct rpc_rqst *req,
encode_diropargs3(xdr, args->fh, args->name.name, args->name.len);
}
+static u32 nfs3_fh_hash_remove(const void *data)
+{
+ const struct nfs_removeargs *args = data;
+ const struct nfs_fh *fh = args->fh;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
/*
* 3.3.14 RENAME3args
*
@@ -1195,6 +1290,14 @@ static void nfs3_xdr_enc_rename3args(struct rpc_rqst *req,
encode_diropargs3(xdr, args->new_dir, new->name, new->len);
}
+static u32 nfs3_fh_hash_rename(const void *data)
+{
+ const struct nfs_renameargs *args = data;
+ const struct nfs_fh *fh = args->old_dir;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
/*
* 3.3.15 LINK3args
*
@@ -1213,6 +1316,14 @@ static void nfs3_xdr_enc_link3args(struct rpc_rqst *req,
encode_diropargs3(xdr, args->tofh, args->toname, args->tolen);
}
+static u32 nfs3_fh_hash_link(const void *data)
+{
+ const struct nfs3_linkargs *args = data;
+ const struct nfs_fh *fh = args->tofh;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
/*
* 3.3.16 READDIR3args
*
@@ -1247,6 +1358,14 @@ static void nfs3_xdr_enc_readdir3args(struct rpc_rqst *req,
NFS3_readdirres_sz - NFS3_pagepad_sz);
}
+static u32 nfs3_fh_hash_readdir(const void *data)
+{
+ const struct nfs3_readdirargs *args = data;
+ struct nfs_fh *fh = args->fh;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
/*
* 3.3.17 READDIRPLUS3args
*
@@ -1289,6 +1408,14 @@ static void nfs3_xdr_enc_readdirplus3args(struct rpc_rqst *req,
NFS3_readdirres_sz - NFS3_pagepad_sz);
}
+static u32 nfs3_fh_hash_readdirplus(const void *data)
+{
+ const struct nfs3_readdirargs *args = data;
+ const struct nfs_fh *fh = args->fh;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
/*
* 3.3.21 COMMIT3args
*
@@ -1319,6 +1446,14 @@ static void nfs3_xdr_enc_commit3args(struct rpc_rqst *req,
encode_commit3args(xdr, args);
}
+static u32 nfs3_fh_hash_commit(const void *data)
+{
+ const struct nfs_commitargs *args = data;
+ const struct nfs_fh *fh = args->fh;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
#ifdef CONFIG_NFS_V3_ACL
static void nfs3_xdr_enc_getacl3args(struct rpc_rqst *req,
@@ -1337,6 +1472,14 @@ static void nfs3_xdr_enc_getacl3args(struct rpc_rqst *req,
}
}
+static u32 nfs3_fh_hash_getacl(const void *data)
+{
+ const struct nfs3_getaclargs *args = data;
+ const struct nfs_fh *fh = args->fh;
+
+ return jhash(fh->data, fh->size, 0);
+}
+
static void nfs3_xdr_enc_setacl3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
const void *data)
@@ -1366,6 +1509,14 @@ static void nfs3_xdr_enc_setacl3args(struct rpc_rqst *req,
BUG_ON(error < 0);
}
+static u32 nfs3_fh_hash_setacl(const void *data)
+{
+ const struct nfs3_setaclargs *args = data;
+ const struct nfs_fh *fh = NFS_FH(args->inode);
+
+ return jhash(fh->data, fh->size, 0);
+}
+
#endif /* CONFIG_NFS_V3_ACL */
/*
@@ -2517,6 +2668,7 @@ static int nfs3_stat_to_errno(enum nfs_stat status)
.p_proc = NFS3PROC_##proc, \
.p_encode = nfs3_xdr_enc_##argtype##3args, \
.p_decode = nfs3_xdr_dec_##restype##3res, \
+ .p_fhhash = nfs3_fh_hash_##argtype, \
.p_arglen = NFS3_##argtype##args_sz, \
.p_replen = NFS3_##restype##res_sz, \
.p_timer = timer, \
@@ -2562,6 +2714,7 @@ static const struct rpc_procinfo nfs3_acl_procedures[] = {
.p_proc = ACLPROC3_GETACL,
.p_encode = nfs3_xdr_enc_getacl3args,
.p_decode = nfs3_xdr_dec_getacl3res,
+ .p_fhhash = nfs3_fh_hash_getacl,
.p_arglen = ACL3_getaclargs_sz,
.p_replen = ACL3_getaclres_sz,
.p_timer = 1,
@@ -2571,6 +2724,7 @@ static const struct rpc_procinfo nfs3_acl_procedures[] = {
.p_proc = ACLPROC3_SETACL,
.p_encode = nfs3_xdr_enc_setacl3args,
.p_decode = nfs3_xdr_dec_setacl3res,
+ .p_fhhash = nfs3_fh_hash_setacl,
.p_arglen = ACL3_setaclargs_sz,
.p_replen = ACL3_setaclres_sz,
.p_timer = 0,