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[50.124.245.189]) by smtp.gmail.com with ESMTPSA id z17sm11930378iol.73.2019.06.30.06.55.04 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Sun, 30 Jun 2019 06:55:05 -0700 (PDT) From: Trond Myklebust X-Google-Original-From: Trond Myklebust To: "J. Bruce Fields" , Chuck Lever Cc: Jeff Layton , linux-nfs@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCH 11/16] nfsd: hook up nfs4_preprocess_stateid_op to the nfsd_file cache Date: Sun, 30 Jun 2019 09:52:35 -0400 Message-Id: <20190630135240.7490-12-trond.myklebust@hammerspace.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190630135240.7490-11-trond.myklebust@hammerspace.com> References: <20190630135240.7490-1-trond.myklebust@hammerspace.com> <20190630135240.7490-2-trond.myklebust@hammerspace.com> <20190630135240.7490-3-trond.myklebust@hammerspace.com> <20190630135240.7490-4-trond.myklebust@hammerspace.com> <20190630135240.7490-5-trond.myklebust@hammerspace.com> <20190630135240.7490-6-trond.myklebust@hammerspace.com> <20190630135240.7490-7-trond.myklebust@hammerspace.com> <20190630135240.7490-8-trond.myklebust@hammerspace.com> <20190630135240.7490-9-trond.myklebust@hammerspace.com> <20190630135240.7490-10-trond.myklebust@hammerspace.com> <20190630135240.7490-11-trond.myklebust@hammerspace.com> MIME-Version: 1.0 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Jeff Layton Have nfs4_preprocess_stateid_op pass back a nfsd_file instead of a filp. Since we now presume that the struct file will be persistent in most cases, we can stop fiddling with the raparms in the read code. This also means that we don't really care about the rd_tmp_file field anymore. Signed-off-by: Jeff Layton Signed-off-by: Trond Myklebust Signed-off-by: Trond Myklebust --- fs/nfsd/nfs4proc.c | 83 +++++++++++++++++++++++---------------------- fs/nfsd/nfs4state.c | 24 ++++++------- fs/nfsd/nfs4xdr.c | 14 ++++---- fs/nfsd/state.h | 2 +- fs/nfsd/xdr4.h | 19 +++++------ 5 files changed, 68 insertions(+), 74 deletions(-) diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 8beda999e134..cb51893ec1cd 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -761,7 +761,7 @@ nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_read *read = &u->read; __be32 status; - read->rd_filp = NULL; + read->rd_nf = NULL; if (read->rd_offset >= OFFSET_MAX) return nfserr_inval; @@ -782,7 +782,7 @@ nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, /* check stateid */ status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, &read->rd_stateid, RD_STATE, - &read->rd_filp, &read->rd_tmp_file); + &read->rd_nf); if (status) { dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); goto out; @@ -798,8 +798,8 @@ nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, static void nfsd4_read_release(union nfsd4_op_u *u) { - if (u->read.rd_filp) - fput(u->read.rd_filp); + if (u->read.rd_nf) + nfsd_file_put(u->read.rd_nf); trace_nfsd_read_done(u->read.rd_rqstp, u->read.rd_fhp, u->read.rd_offset, u->read.rd_length); } @@ -954,7 +954,7 @@ nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, &setattr->sa_stateid, - WR_STATE, NULL, NULL); + WR_STATE, NULL); if (status) { dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); return status; @@ -993,7 +993,7 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, { struct nfsd4_write *write = &u->write; stateid_t *stateid = &write->wr_stateid; - struct file *filp = NULL; + struct nfsd_file *nf = NULL; __be32 status = nfs_ok; unsigned long cnt; int nvecs; @@ -1005,7 +1005,7 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, trace_nfsd_write_start(rqstp, &cstate->current_fh, write->wr_offset, cnt); status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, - stateid, WR_STATE, &filp, NULL); + stateid, WR_STATE, &nf); if (status) { dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); return status; @@ -1018,10 +1018,10 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, &write->wr_head, write->wr_buflen); WARN_ON_ONCE(nvecs > ARRAY_SIZE(rqstp->rq_vec)); - status = nfsd_vfs_write(rqstp, &cstate->current_fh, filp, + status = nfsd_vfs_write(rqstp, &cstate->current_fh, nf->nf_file, write->wr_offset, rqstp->rq_vec, nvecs, &cnt, write->wr_how_written); - fput(filp); + nfsd_file_put(nf); write->wr_bytes_written = cnt; trace_nfsd_write_done(rqstp, &cstate->current_fh, @@ -1031,8 +1031,8 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, static __be32 nfsd4_verify_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, - stateid_t *src_stateid, struct file **src, - stateid_t *dst_stateid, struct file **dst) + stateid_t *src_stateid, struct nfsd_file **src, + stateid_t *dst_stateid, struct nfsd_file **dst) { __be32 status; @@ -1040,22 +1040,22 @@ nfsd4_verify_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, return nfserr_nofilehandle; status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->save_fh, - src_stateid, RD_STATE, src, NULL); + src_stateid, RD_STATE, src); if (status) { dprintk("NFSD: %s: couldn't process src stateid!\n", __func__); goto out; } status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, - dst_stateid, WR_STATE, dst, NULL); + dst_stateid, WR_STATE, dst); if (status) { dprintk("NFSD: %s: couldn't process dst stateid!\n", __func__); goto out_put_src; } /* fix up for NFS-specific error code */ - if (!S_ISREG(file_inode(*src)->i_mode) || - !S_ISREG(file_inode(*dst)->i_mode)) { + if (!S_ISREG(file_inode((*src)->nf_file)->i_mode) || + !S_ISREG(file_inode((*dst)->nf_file)->i_mode)) { status = nfserr_wrong_type; goto out_put_dst; } @@ -1063,9 +1063,9 @@ nfsd4_verify_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, out: return status; out_put_dst: - fput(*dst); + nfsd_file_put(*dst); out_put_src: - fput(*src); + nfsd_file_put(*src); goto out; } @@ -1074,7 +1074,7 @@ nfsd4_clone(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) { struct nfsd4_clone *clone = &u->clone; - struct file *src, *dst; + struct nfsd_file *src, *dst; __be32 status; status = nfsd4_verify_copy(rqstp, cstate, &clone->cl_src_stateid, &src, @@ -1082,11 +1082,11 @@ nfsd4_clone(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, if (status) goto out; - status = nfsd4_clone_file_range(src, clone->cl_src_pos, - dst, clone->cl_dst_pos, clone->cl_count); + status = nfsd4_clone_file_range(src->nf_file, clone->cl_src_pos, + dst->nf_file, clone->cl_dst_pos, clone->cl_count); - fput(dst); - fput(src); + nfsd_file_put(dst); + nfsd_file_put(src); out: return status; } @@ -1176,8 +1176,9 @@ static ssize_t _nfsd_copy_file_range(struct nfsd4_copy *copy) do { if (kthread_should_stop()) break; - bytes_copied = nfsd_copy_file_range(copy->file_src, src_pos, - copy->file_dst, dst_pos, bytes_total); + bytes_copied = nfsd_copy_file_range(copy->nf_src->nf_file, + src_pos, copy->nf_dst->nf_file, dst_pos, + bytes_total); if (bytes_copied <= 0) break; bytes_total -= bytes_copied; @@ -1204,8 +1205,8 @@ static __be32 nfsd4_do_copy(struct nfsd4_copy *copy, bool sync) status = nfs_ok; } - fput(copy->file_src); - fput(copy->file_dst); + nfsd_file_put(copy->nf_src); + nfsd_file_put(copy->nf_dst); return status; } @@ -1218,16 +1219,16 @@ static void dup_copy_fields(struct nfsd4_copy *src, struct nfsd4_copy *dst) memcpy(&dst->cp_res, &src->cp_res, sizeof(src->cp_res)); memcpy(&dst->fh, &src->fh, sizeof(src->fh)); dst->cp_clp = src->cp_clp; - dst->file_dst = get_file(src->file_dst); - dst->file_src = get_file(src->file_src); + dst->nf_dst = nfsd_file_get(src->nf_dst); + dst->nf_src = nfsd_file_get(src->nf_src); memcpy(&dst->cp_stateid, &src->cp_stateid, sizeof(src->cp_stateid)); } static void cleanup_async_copy(struct nfsd4_copy *copy) { nfs4_free_cp_state(copy); - fput(copy->file_dst); - fput(copy->file_src); + nfsd_file_put(copy->nf_dst); + nfsd_file_put(copy->nf_src); spin_lock(©->cp_clp->async_lock); list_del(©->copies); spin_unlock(©->cp_clp->async_lock); @@ -1264,8 +1265,8 @@ nfsd4_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_copy *async_copy = NULL; status = nfsd4_verify_copy(rqstp, cstate, ©->cp_src_stateid, - ©->file_src, ©->cp_dst_stateid, - ©->file_dst); + ©->nf_src, ©->cp_dst_stateid, + ©->nf_dst); if (status) goto out; @@ -1347,21 +1348,21 @@ nfsd4_fallocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_fallocate *fallocate, int flags) { __be32 status; - struct file *file; + struct nfsd_file *nf; status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, &fallocate->falloc_stateid, - WR_STATE, &file, NULL); + WR_STATE, &nf); if (status != nfs_ok) { dprintk("NFSD: nfsd4_fallocate: couldn't process stateid!\n"); return status; } - status = nfsd4_vfs_fallocate(rqstp, &cstate->current_fh, file, + status = nfsd4_vfs_fallocate(rqstp, &cstate->current_fh, nf->nf_file, fallocate->falloc_offset, fallocate->falloc_length, flags); - fput(file); + nfsd_file_put(nf); return status; } static __be32 @@ -1406,11 +1407,11 @@ nfsd4_seek(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_seek *seek = &u->seek; int whence; __be32 status; - struct file *file; + struct nfsd_file *nf; status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, &seek->seek_stateid, - RD_STATE, &file, NULL); + RD_STATE, &nf); if (status) { dprintk("NFSD: nfsd4_seek: couldn't process stateid!\n"); return status; @@ -1432,14 +1433,14 @@ nfsd4_seek(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, * Note: This call does change file->f_pos, but nothing in NFSD * should ever file->f_pos. */ - seek->seek_pos = vfs_llseek(file, seek->seek_offset, whence); + seek->seek_pos = vfs_llseek(nf->nf_file, seek->seek_offset, whence); if (seek->seek_pos < 0) status = nfserrno(seek->seek_pos); - else if (seek->seek_pos >= i_size_read(file_inode(file))) + else if (seek->seek_pos >= i_size_read(file_inode(nf->nf_file))) seek->seek_eof = true; out: - fput(file); + nfsd_file_put(nf); return status; } diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 0e578ce11d1b..efd63bfbbcd0 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -5158,7 +5158,7 @@ nfs4_check_olstateid(struct nfs4_ol_stateid *ols, int flags) static __be32 nfs4_check_file(struct svc_rqst *rqstp, struct svc_fh *fhp, struct nfs4_stid *s, - struct file **filpp, bool *tmp_file, int flags) + struct nfsd_file **nfp, int flags) { int acc = (flags & RD_STATE) ? NFSD_MAY_READ : NFSD_MAY_WRITE; struct nfsd_file *nf; @@ -5168,19 +5168,17 @@ nfs4_check_file(struct svc_rqst *rqstp, struct svc_fh *fhp, struct nfs4_stid *s, if (nf) { status = nfsd_permission(rqstp, fhp->fh_export, fhp->fh_dentry, acc | NFSD_MAY_OWNER_OVERRIDE); - if (status) + if (status) { + nfsd_file_put(nf); goto out; + } } else { status = nfsd_file_acquire(rqstp, fhp, acc, &nf); if (status) return status; - - if (tmp_file) - *tmp_file = true; } - *filpp = get_file(nf->nf_file); + *nfp = nf; out: - nfsd_file_put(nf); return status; } @@ -5190,7 +5188,7 @@ nfs4_check_file(struct svc_rqst *rqstp, struct svc_fh *fhp, struct nfs4_stid *s, __be32 nfs4_preprocess_stateid_op(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct svc_fh *fhp, - stateid_t *stateid, int flags, struct file **filpp, bool *tmp_file) + stateid_t *stateid, int flags, struct nfsd_file **nfp) { struct inode *ino = d_inode(fhp->fh_dentry); struct net *net = SVC_NET(rqstp); @@ -5198,10 +5196,8 @@ nfs4_preprocess_stateid_op(struct svc_rqst *rqstp, struct nfs4_stid *s = NULL; __be32 status; - if (filpp) - *filpp = NULL; - if (tmp_file) - *tmp_file = false; + if (nfp) + *nfp = NULL; if (grace_disallows_io(net, ino)) return nfserr_grace; @@ -5238,8 +5234,8 @@ nfs4_preprocess_stateid_op(struct svc_rqst *rqstp, status = nfs4_check_fh(fhp, s); done: - if (!status && filpp) - status = nfs4_check_file(rqstp, fhp, s, filpp, tmp_file, flags); + if (status == nfs_ok && nfp) + status = nfs4_check_file(rqstp, fhp, s, nfp, flags); out: if (s) nfs4_put_stid(s); diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 52c4f6daa649..80bace0271bb 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -49,6 +49,7 @@ #include "cache.h" #include "netns.h" #include "pnfs.h" +#include "filecache.h" #ifdef CONFIG_NFSD_V4_SECURITY_LABEL #include @@ -3586,11 +3587,14 @@ nfsd4_encode_read(struct nfsd4_compoundres *resp, __be32 nfserr, { unsigned long maxcount; struct xdr_stream *xdr = &resp->xdr; - struct file *file = read->rd_filp; + struct file *file; int starting_len = xdr->buf->len; - struct raparms *ra = NULL; __be32 *p; + if (nfserr) + return nfserr; + file = read->rd_nf->nf_file; + p = xdr_reserve_space(xdr, 8); /* eof flag and byte count */ if (!p) { WARN_ON_ONCE(test_bit(RQ_SPLICE_OK, &resp->rqstp->rq_flags)); @@ -3608,18 +3612,12 @@ nfsd4_encode_read(struct nfsd4_compoundres *resp, __be32 nfserr, (xdr->buf->buflen - xdr->buf->len)); maxcount = min_t(unsigned long, maxcount, read->rd_length); - if (read->rd_tmp_file) - ra = nfsd_init_raparms(file); - if (file->f_op->splice_read && test_bit(RQ_SPLICE_OK, &resp->rqstp->rq_flags)) nfserr = nfsd4_encode_splice_read(resp, read, file, maxcount); else nfserr = nfsd4_encode_readv(resp, read, file, maxcount); - if (ra) - nfsd_put_raparams(file, ra); - if (nfserr) xdr_truncate_encode(xdr, starting_len); diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index 90baf5f2dd66..f0e9ee7fc62b 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -607,7 +607,7 @@ struct nfsd4_copy; extern __be32 nfs4_preprocess_stateid_op(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct svc_fh *fhp, - stateid_t *stateid, int flags, struct file **filp, bool *tmp_file); + stateid_t *stateid, int flags, struct nfsd_file **filp); __be32 nfsd4_lookup_stateid(struct nfsd4_compound_state *cstate, stateid_t *stateid, unsigned char typemask, struct nfs4_stid **s, struct nfsd_net *nn); diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h index feeb6d4bdffd..5eb3895afe0b 100644 --- a/fs/nfsd/xdr4.h +++ b/fs/nfsd/xdr4.h @@ -273,15 +273,14 @@ struct nfsd4_open_downgrade { struct nfsd4_read { - stateid_t rd_stateid; /* request */ - u64 rd_offset; /* request */ - u32 rd_length; /* request */ - int rd_vlen; - struct file *rd_filp; - bool rd_tmp_file; + stateid_t rd_stateid; /* request */ + u64 rd_offset; /* request */ + u32 rd_length; /* request */ + int rd_vlen; + struct nfsd_file *rd_nf; - struct svc_rqst *rd_rqstp; /* response */ - struct svc_fh * rd_fhp; /* response */ + struct svc_rqst *rd_rqstp; /* response */ + struct svc_fh *rd_fhp; /* response */ }; struct nfsd4_readdir { @@ -535,8 +534,8 @@ struct nfsd4_copy { struct nfs4_client *cp_clp; - struct file *file_src; - struct file *file_dst; + struct nfsd_file *nf_src; + struct nfsd_file *nf_dst; stateid_t cp_stateid;