NFSD: Remove the RETURN_STATUS() macro
Refactor: I'm about to change the return value from .pc_func. Clear
the way by replacing the RETURN_STATUS() macro with logic that
plants the status code directly into the response structure.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index 3d09959..1d2c149 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -15,8 +15,6 @@
#define NFSDDBG_FACILITY NFSDDBG_PROC
-#define RETURN_STATUS(st) { resp->status = (st); return (st); }
-
static int nfs3_ftypes[] = {
0, /* NF3NON */
S_IFREG, /* NF3REG */
@@ -45,20 +43,19 @@ nfsd3_proc_getattr(struct svc_rqst *rqstp)
{
struct nfsd_fhandle *argp = rqstp->rq_argp;
struct nfsd3_attrstat *resp = rqstp->rq_resp;
- __be32 nfserr;
dprintk("nfsd: GETATTR(3) %s\n",
SVCFH_fmt(&argp->fh));
fh_copy(&resp->fh, &argp->fh);
- nfserr = fh_verify(rqstp, &resp->fh, 0,
- NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
- if (nfserr)
- RETURN_STATUS(nfserr);
+ resp->status = fh_verify(rqstp, &resp->fh, 0,
+ NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
+ if (resp->status != nfs_ok)
+ goto out;
- nfserr = fh_getattr(&resp->fh, &resp->stat);
-
- RETURN_STATUS(nfserr);
+ resp->status = fh_getattr(&resp->fh, &resp->stat);
+out:
+ return resp->status;
}
/*
@@ -69,15 +66,14 @@ nfsd3_proc_setattr(struct svc_rqst *rqstp)
{
struct nfsd3_sattrargs *argp = rqstp->rq_argp;
struct nfsd3_attrstat *resp = rqstp->rq_resp;
- __be32 nfserr;
dprintk("nfsd: SETATTR(3) %s\n",
SVCFH_fmt(&argp->fh));
fh_copy(&resp->fh, &argp->fh);
- nfserr = nfsd_setattr(rqstp, &resp->fh, &argp->attrs,
- argp->check_guard, argp->guardtime);
- RETURN_STATUS(nfserr);
+ resp->status = nfsd_setattr(rqstp, &resp->fh, &argp->attrs,
+ argp->check_guard, argp->guardtime);
+ return resp->status;
}
/*
@@ -88,7 +84,6 @@ nfsd3_proc_lookup(struct svc_rqst *rqstp)
{
struct nfsd3_diropargs *argp = rqstp->rq_argp;
struct nfsd3_diropres *resp = rqstp->rq_resp;
- __be32 nfserr;
dprintk("nfsd: LOOKUP(3) %s %.*s\n",
SVCFH_fmt(&argp->fh),
@@ -98,11 +93,10 @@ nfsd3_proc_lookup(struct svc_rqst *rqstp)
fh_copy(&resp->dirfh, &argp->fh);
fh_init(&resp->fh, NFS3_FHSIZE);
- nfserr = nfsd_lookup(rqstp, &resp->dirfh,
- argp->name,
- argp->len,
- &resp->fh);
- RETURN_STATUS(nfserr);
+ resp->status = nfsd_lookup(rqstp, &resp->dirfh,
+ argp->name, argp->len,
+ &resp->fh);
+ return resp->status;
}
/*
@@ -113,7 +107,6 @@ nfsd3_proc_access(struct svc_rqst *rqstp)
{
struct nfsd3_accessargs *argp = rqstp->rq_argp;
struct nfsd3_accessres *resp = rqstp->rq_resp;
- __be32 nfserr;
dprintk("nfsd: ACCESS(3) %s 0x%x\n",
SVCFH_fmt(&argp->fh),
@@ -121,8 +114,8 @@ nfsd3_proc_access(struct svc_rqst *rqstp)
fh_copy(&resp->fh, &argp->fh);
resp->access = argp->access;
- nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
- RETURN_STATUS(nfserr);
+ resp->status = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
+ return resp->status;
}
/*
@@ -133,15 +126,14 @@ nfsd3_proc_readlink(struct svc_rqst *rqstp)
{
struct nfsd3_readlinkargs *argp = rqstp->rq_argp;
struct nfsd3_readlinkres *resp = rqstp->rq_resp;
- __be32 nfserr;
dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh));
/* Read the symlink. */
fh_copy(&resp->fh, &argp->fh);
resp->len = NFS3_MAXPATHLEN;
- nfserr = nfsd_readlink(rqstp, &resp->fh, argp->buffer, &resp->len);
- RETURN_STATUS(nfserr);
+ resp->status = nfsd_readlink(rqstp, &resp->fh, argp->buffer, &resp->len);
+ return resp->status;
}
/*
@@ -152,7 +144,6 @@ nfsd3_proc_read(struct svc_rqst *rqstp)
{
struct nfsd3_readargs *argp = rqstp->rq_argp;
struct nfsd3_readres *resp = rqstp->rq_resp;
- __be32 nfserr;
u32 max_blocksize = svc_max_payload(rqstp);
unsigned long cnt = min(argp->count, max_blocksize);
@@ -169,12 +160,10 @@ nfsd3_proc_read(struct svc_rqst *rqstp)
svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4);
fh_copy(&resp->fh, &argp->fh);
- nfserr = nfsd_read(rqstp, &resp->fh,
- argp->offset,
- rqstp->rq_vec, argp->vlen,
- &resp->count,
- &resp->eof);
- RETURN_STATUS(nfserr);
+ resp->status = nfsd_read(rqstp, &resp->fh, argp->offset,
+ rqstp->rq_vec, argp->vlen, &resp->count,
+ &resp->eof);
+ return resp->status;
}
/*
@@ -185,7 +174,6 @@ nfsd3_proc_write(struct svc_rqst *rqstp)
{
struct nfsd3_writeargs *argp = rqstp->rq_argp;
struct nfsd3_writeres *resp = rqstp->rq_resp;
- __be32 nfserr;
unsigned long cnt = argp->len;
unsigned int nvecs;
@@ -199,13 +187,16 @@ nfsd3_proc_write(struct svc_rqst *rqstp)
resp->committed = argp->stable;
nvecs = svc_fill_write_vector(rqstp, rqstp->rq_arg.pages,
&argp->first, cnt);
- if (!nvecs)
- RETURN_STATUS(nfserr_io);
- nfserr = nfsd_write(rqstp, &resp->fh, argp->offset,
- rqstp->rq_vec, nvecs, &cnt,
- resp->committed, resp->verf);
+ if (!nvecs) {
+ resp->status = nfserr_io;
+ goto out;
+ }
+ resp->status = nfsd_write(rqstp, &resp->fh, argp->offset,
+ rqstp->rq_vec, nvecs, &cnt,
+ resp->committed, resp->verf);
resp->count = cnt;
- RETURN_STATUS(nfserr);
+out:
+ return resp->status;
}
/*
@@ -220,7 +211,6 @@ nfsd3_proc_create(struct svc_rqst *rqstp)
struct nfsd3_diropres *resp = rqstp->rq_resp;
svc_fh *dirfhp, *newfhp = NULL;
struct iattr *attr;
- __be32 nfserr;
dprintk("nfsd: CREATE(3) %s %.*s\n",
SVCFH_fmt(&argp->fh),
@@ -241,11 +231,10 @@ nfsd3_proc_create(struct svc_rqst *rqstp)
}
/* Now create the file and set attributes */
- nfserr = do_nfsd_create(rqstp, dirfhp, argp->name, argp->len,
- attr, newfhp,
- argp->createmode, (u32 *)argp->verf, NULL, NULL);
-
- RETURN_STATUS(nfserr);
+ resp->status = do_nfsd_create(rqstp, dirfhp, argp->name, argp->len,
+ attr, newfhp, argp->createmode,
+ (u32 *)argp->verf, NULL, NULL);
+ return resp->status;
}
/*
@@ -256,7 +245,6 @@ nfsd3_proc_mkdir(struct svc_rqst *rqstp)
{
struct nfsd3_createargs *argp = rqstp->rq_argp;
struct nfsd3_diropres *resp = rqstp->rq_resp;
- __be32 nfserr;
dprintk("nfsd: MKDIR(3) %s %.*s\n",
SVCFH_fmt(&argp->fh),
@@ -266,10 +254,10 @@ nfsd3_proc_mkdir(struct svc_rqst *rqstp)
argp->attrs.ia_valid &= ~ATTR_SIZE;
fh_copy(&resp->dirfh, &argp->fh);
fh_init(&resp->fh, NFS3_FHSIZE);
- nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
- &argp->attrs, S_IFDIR, 0, &resp->fh);
+ resp->status = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
+ &argp->attrs, S_IFDIR, 0, &resp->fh);
fh_unlock(&resp->dirfh);
- RETURN_STATUS(nfserr);
+ return resp->status;
}
static __be32
@@ -277,18 +265,23 @@ nfsd3_proc_symlink(struct svc_rqst *rqstp)
{
struct nfsd3_symlinkargs *argp = rqstp->rq_argp;
struct nfsd3_diropres *resp = rqstp->rq_resp;
- __be32 nfserr;
- if (argp->tlen == 0)
- RETURN_STATUS(nfserr_inval);
- if (argp->tlen > NFS3_MAXPATHLEN)
- RETURN_STATUS(nfserr_nametoolong);
+ if (argp->tlen == 0) {
+ resp->status = nfserr_inval;
+ goto out;
+ }
+ if (argp->tlen > NFS3_MAXPATHLEN) {
+ resp->status = nfserr_nametoolong;
+ goto out;
+ }
argp->tname = svc_fill_symlink_pathname(rqstp, &argp->first,
page_address(rqstp->rq_arg.pages[0]),
argp->tlen);
- if (IS_ERR(argp->tname))
- RETURN_STATUS(nfserrno(PTR_ERR(argp->tname)));
+ if (IS_ERR(argp->tname)) {
+ resp->status = nfserrno(PTR_ERR(argp->tname));
+ goto out;
+ }
dprintk("nfsd: SYMLINK(3) %s %.*s -> %.*s\n",
SVCFH_fmt(&argp->ffh),
@@ -297,10 +290,11 @@ nfsd3_proc_symlink(struct svc_rqst *rqstp)
fh_copy(&resp->dirfh, &argp->ffh);
fh_init(&resp->fh, NFS3_FHSIZE);
- nfserr = nfsd_symlink(rqstp, &resp->dirfh, argp->fname, argp->flen,
- argp->tname, &resp->fh);
+ resp->status = nfsd_symlink(rqstp, &resp->dirfh, argp->fname,
+ argp->flen, argp->tname, &resp->fh);
kfree(argp->tname);
- RETURN_STATUS(nfserr);
+out:
+ return resp->status;
}
/*
@@ -311,7 +305,6 @@ nfsd3_proc_mknod(struct svc_rqst *rqstp)
{
struct nfsd3_mknodargs *argp = rqstp->rq_argp;
struct nfsd3_diropres *resp = rqstp->rq_resp;
- __be32 nfserr;
int type;
dev_t rdev = 0;
@@ -323,22 +316,28 @@ nfsd3_proc_mknod(struct svc_rqst *rqstp)
fh_copy(&resp->dirfh, &argp->fh);
fh_init(&resp->fh, NFS3_FHSIZE);
- if (argp->ftype == 0 || argp->ftype >= NF3BAD)
- RETURN_STATUS(nfserr_inval);
+ if (argp->ftype == 0 || argp->ftype >= NF3BAD) {
+ resp->status = nfserr_inval;
+ goto out;
+ }
if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) {
rdev = MKDEV(argp->major, argp->minor);
if (MAJOR(rdev) != argp->major ||
- MINOR(rdev) != argp->minor)
- RETURN_STATUS(nfserr_inval);
- } else
- if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO)
- RETURN_STATUS(nfserr_inval);
+ MINOR(rdev) != argp->minor) {
+ resp->status = nfserr_inval;
+ goto out;
+ }
+ } else if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO) {
+ resp->status = nfserr_inval;
+ goto out;
+ }
type = nfs3_ftypes[argp->ftype];
- nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
- &argp->attrs, type, rdev, &resp->fh);
+ resp->status = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
+ &argp->attrs, type, rdev, &resp->fh);
fh_unlock(&resp->dirfh);
- RETURN_STATUS(nfserr);
+out:
+ return resp->status;
}
/*
@@ -349,7 +348,6 @@ nfsd3_proc_remove(struct svc_rqst *rqstp)
{
struct nfsd3_diropargs *argp = rqstp->rq_argp;
struct nfsd3_attrstat *resp = rqstp->rq_resp;
- __be32 nfserr;
dprintk("nfsd: REMOVE(3) %s %.*s\n",
SVCFH_fmt(&argp->fh),
@@ -358,9 +356,10 @@ nfsd3_proc_remove(struct svc_rqst *rqstp)
/* Unlink. -S_IFDIR means file must not be a directory */
fh_copy(&resp->fh, &argp->fh);
- nfserr = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR, argp->name, argp->len);
+ resp->status = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR,
+ argp->name, argp->len);
fh_unlock(&resp->fh);
- RETURN_STATUS(nfserr);
+ return resp->status;
}
/*
@@ -371,7 +370,6 @@ nfsd3_proc_rmdir(struct svc_rqst *rqstp)
{
struct nfsd3_diropargs *argp = rqstp->rq_argp;
struct nfsd3_attrstat *resp = rqstp->rq_resp;
- __be32 nfserr;
dprintk("nfsd: RMDIR(3) %s %.*s\n",
SVCFH_fmt(&argp->fh),
@@ -379,9 +377,10 @@ nfsd3_proc_rmdir(struct svc_rqst *rqstp)
argp->name);
fh_copy(&resp->fh, &argp->fh);
- nfserr = nfsd_unlink(rqstp, &resp->fh, S_IFDIR, argp->name, argp->len);
+ resp->status = nfsd_unlink(rqstp, &resp->fh, S_IFDIR,
+ argp->name, argp->len);
fh_unlock(&resp->fh);
- RETURN_STATUS(nfserr);
+ return resp->status;
}
static __be32
@@ -389,7 +388,6 @@ nfsd3_proc_rename(struct svc_rqst *rqstp)
{
struct nfsd3_renameargs *argp = rqstp->rq_argp;
struct nfsd3_renameres *resp = rqstp->rq_resp;
- __be32 nfserr;
dprintk("nfsd: RENAME(3) %s %.*s ->\n",
SVCFH_fmt(&argp->ffh),
@@ -402,9 +400,9 @@ nfsd3_proc_rename(struct svc_rqst *rqstp)
fh_copy(&resp->ffh, &argp->ffh);
fh_copy(&resp->tfh, &argp->tfh);
- nfserr = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
- &resp->tfh, argp->tname, argp->tlen);
- RETURN_STATUS(nfserr);
+ resp->status = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
+ &resp->tfh, argp->tname, argp->tlen);
+ return resp->status;
}
static __be32
@@ -412,7 +410,6 @@ nfsd3_proc_link(struct svc_rqst *rqstp)
{
struct nfsd3_linkargs *argp = rqstp->rq_argp;
struct nfsd3_linkres *resp = rqstp->rq_resp;
- __be32 nfserr;
dprintk("nfsd: LINK(3) %s ->\n",
SVCFH_fmt(&argp->ffh));
@@ -423,9 +420,9 @@ nfsd3_proc_link(struct svc_rqst *rqstp)
fh_copy(&resp->fh, &argp->ffh);
fh_copy(&resp->tfh, &argp->tfh);
- nfserr = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen,
- &resp->fh);
- RETURN_STATUS(nfserr);
+ resp->status = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen,
+ &resp->fh);
+ return resp->status;
}
/*
@@ -436,7 +433,6 @@ nfsd3_proc_readdir(struct svc_rqst *rqstp)
{
struct nfsd3_readdirargs *argp = rqstp->rq_argp;
struct nfsd3_readdirres *resp = rqstp->rq_resp;
- __be32 nfserr;
int count = 0;
struct page **p;
caddr_t page_addr = NULL;
@@ -456,8 +452,8 @@ nfsd3_proc_readdir(struct svc_rqst *rqstp)
resp->common.err = nfs_ok;
resp->buffer = argp->buffer;
resp->rqstp = rqstp;
- nfserr = nfsd_readdir(rqstp, &resp->fh, (loff_t*) &argp->cookie,
- &resp->common, nfs3svc_encode_entry);
+ resp->status = nfsd_readdir(rqstp, &resp->fh, (loff_t *)&argp->cookie,
+ &resp->common, nfs3svc_encode_entry);
memcpy(resp->verf, argp->verf, 8);
count = 0;
for (p = rqstp->rq_respages + 1; p < rqstp->rq_next_page; p++) {
@@ -485,7 +481,7 @@ nfsd3_proc_readdir(struct svc_rqst *rqstp)
resp->offset = NULL;
}
- RETURN_STATUS(nfserr);
+ return resp->status;
}
/*
@@ -497,7 +493,6 @@ nfsd3_proc_readdirplus(struct svc_rqst *rqstp)
{
struct nfsd3_readdirargs *argp = rqstp->rq_argp;
struct nfsd3_readdirres *resp = rqstp->rq_resp;
- __be32 nfserr;
int count = 0;
loff_t offset;
struct page **p;
@@ -520,17 +515,17 @@ nfsd3_proc_readdirplus(struct svc_rqst *rqstp)
resp->rqstp = rqstp;
offset = argp->cookie;
- nfserr = fh_verify(rqstp, &resp->fh, S_IFDIR, NFSD_MAY_NOP);
- if (nfserr)
- RETURN_STATUS(nfserr);
+ resp->status = fh_verify(rqstp, &resp->fh, S_IFDIR, NFSD_MAY_NOP);
+ if (resp->status != nfs_ok)
+ goto out;
- if (resp->fh.fh_export->ex_flags & NFSEXP_NOREADDIRPLUS)
- RETURN_STATUS(nfserr_notsupp);
+ if (resp->fh.fh_export->ex_flags & NFSEXP_NOREADDIRPLUS) {
+ resp->status = nfserr_notsupp;
+ goto out;
+ }
- nfserr = nfsd_readdir(rqstp, &resp->fh,
- &offset,
- &resp->common,
- nfs3svc_encode_entry_plus);
+ resp->status = nfsd_readdir(rqstp, &resp->fh, &offset,
+ &resp->common, nfs3svc_encode_entry_plus);
memcpy(resp->verf, argp->verf, 8);
for (p = rqstp->rq_respages + 1; p < rqstp->rq_next_page; p++) {
page_addr = page_address(*p);
@@ -555,7 +550,8 @@ nfsd3_proc_readdirplus(struct svc_rqst *rqstp)
resp->offset = NULL;
}
- RETURN_STATUS(nfserr);
+out:
+ return resp->status;
}
/*
@@ -566,14 +562,13 @@ nfsd3_proc_fsstat(struct svc_rqst *rqstp)
{
struct nfsd_fhandle *argp = rqstp->rq_argp;
struct nfsd3_fsstatres *resp = rqstp->rq_resp;
- __be32 nfserr;
dprintk("nfsd: FSSTAT(3) %s\n",
SVCFH_fmt(&argp->fh));
- nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0);
+ resp->status = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0);
fh_put(&argp->fh);
- RETURN_STATUS(nfserr);
+ return resp->status;
}
/*
@@ -584,7 +579,6 @@ nfsd3_proc_fsinfo(struct svc_rqst *rqstp)
{
struct nfsd_fhandle *argp = rqstp->rq_argp;
struct nfsd3_fsinfores *resp = rqstp->rq_resp;
- __be32 nfserr;
u32 max_blocksize = svc_max_payload(rqstp);
dprintk("nfsd: FSINFO(3) %s\n",
@@ -600,13 +594,13 @@ nfsd3_proc_fsinfo(struct svc_rqst *rqstp)
resp->f_maxfilesize = ~(u32) 0;
resp->f_properties = NFS3_FSF_DEFAULT;
- nfserr = fh_verify(rqstp, &argp->fh, 0,
- NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
+ resp->status = fh_verify(rqstp, &argp->fh, 0,
+ NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
/* Check special features of the file system. May request
* different read/write sizes for file systems known to have
* problems with large blocks */
- if (nfserr == 0) {
+ if (resp->status == nfs_ok) {
struct super_block *sb = argp->fh.fh_dentry->d_sb;
/* Note that we don't care for remote fs's here */
@@ -617,7 +611,7 @@ nfsd3_proc_fsinfo(struct svc_rqst *rqstp)
}
fh_put(&argp->fh);
- RETURN_STATUS(nfserr);
+ return resp->status;
}
/*
@@ -628,7 +622,6 @@ nfsd3_proc_pathconf(struct svc_rqst *rqstp)
{
struct nfsd_fhandle *argp = rqstp->rq_argp;
struct nfsd3_pathconfres *resp = rqstp->rq_resp;
- __be32 nfserr;
dprintk("nfsd: PATHCONF(3) %s\n",
SVCFH_fmt(&argp->fh));
@@ -641,9 +634,9 @@ nfsd3_proc_pathconf(struct svc_rqst *rqstp)
resp->p_case_insensitive = 0;
resp->p_case_preserving = 1;
- nfserr = fh_verify(rqstp, &argp->fh, 0, NFSD_MAY_NOP);
+ resp->status = fh_verify(rqstp, &argp->fh, 0, NFSD_MAY_NOP);
- if (nfserr == 0) {
+ if (resp->status == nfs_ok) {
struct super_block *sb = argp->fh.fh_dentry->d_sb;
/* Note that we don't care for remote fs's here */
@@ -660,10 +653,9 @@ nfsd3_proc_pathconf(struct svc_rqst *rqstp)
}
fh_put(&argp->fh);
- RETURN_STATUS(nfserr);
+ return resp->status;
}
-
/*
* Commit a file (range) to stable storage.
*/
@@ -672,21 +664,22 @@ nfsd3_proc_commit(struct svc_rqst *rqstp)
{
struct nfsd3_commitargs *argp = rqstp->rq_argp;
struct nfsd3_commitres *resp = rqstp->rq_resp;
- __be32 nfserr;
dprintk("nfsd: COMMIT(3) %s %u@%Lu\n",
SVCFH_fmt(&argp->fh),
argp->count,
(unsigned long long) argp->offset);
- if (argp->offset > NFS_OFFSET_MAX)
- RETURN_STATUS(nfserr_inval);
+ if (argp->offset > NFS_OFFSET_MAX) {
+ resp->status = nfserr_inval;
+ goto out;
+ }
fh_copy(&resp->fh, &argp->fh);
- nfserr = nfsd_commit(rqstp, &resp->fh, argp->offset, argp->count,
- resp->verf);
-
- RETURN_STATUS(nfserr);
+ resp->status = nfsd_commit(rqstp, &resp->fh, argp->offset,
+ argp->count, resp->verf);
+out:
+ return resp->status;
}