diff options
author | Chuck Lever <chuck.lever@oracle.com> | 2020-10-02 01:59:54 +0300 |
---|---|---|
committer | J. Bruce Fields <bfields@redhat.com> | 2020-10-02 16:37:42 +0300 |
commit | 14168d678a0fa0645609417ad9c384a7c6f895fd (patch) | |
tree | 9eca790564709e631c602d269b67b0fd68ca6b08 /fs/nfsd/nfs3proc.c | |
parent | f0af22101d9072c6488b8d20d6e33338669029fe (diff) | |
download | linux-14168d678a0fa0645609417ad9c384a7c6f895fd.tar.xz |
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>
Diffstat (limited to 'fs/nfsd/nfs3proc.c')
-rw-r--r-- | fs/nfsd/nfs3proc.c | 235 |
1 files changed, 114 insertions, 121 deletions
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c index 3d09959c7042..1d2c149e5ff4 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); - - nfserr = fh_getattr(&resp->fh, &resp->stat); - - 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; + + 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; } |