diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfsd/nfs3xdr.c | 12 | ||||
| -rw-r--r-- | fs/nfsd/nfs4acl.c | 18 | ||||
| -rw-r--r-- | fs/nfsd/nfs4callback.c | 15 | ||||
| -rw-r--r-- | fs/nfsd/nfs4proc.c | 43 | ||||
| -rw-r--r-- | fs/nfsd/nfs4state.c | 148 | ||||
| -rw-r--r-- | fs/nfsd/nfs4xdr.c | 75 | ||||
| -rw-r--r-- | fs/nfsd/nfsproc.c | 52 | ||||
| -rw-r--r-- | fs/nfsd/state.h | 7 | ||||
| -rw-r--r-- | fs/nfsd/vfs.c | 128 | ||||
| -rw-r--r-- | fs/nfsd/vfs.h | 11 | ||||
| -rw-r--r-- | fs/nfsd/xdr4.h | 1 |
11 files changed, 259 insertions, 251 deletions
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c index e4b2b4322553..f6e7cbabac5a 100644 --- a/fs/nfsd/nfs3xdr.c +++ b/fs/nfsd/nfs3xdr.c @@ -805,7 +805,7 @@ encode_entry_baggage(struct nfsd3_readdirres *cd, __be32 *p, const char *name, static __be32 compose_entry_fh(struct nfsd3_readdirres *cd, struct svc_fh *fhp, - const char *name, int namlen) + const char *name, int namlen, u64 ino) { struct svc_export *exp; struct dentry *dparent, *dchild; @@ -830,19 +830,21 @@ compose_entry_fh(struct nfsd3_readdirres *cd, struct svc_fh *fhp, goto out; if (d_really_is_negative(dchild)) goto out; + if (dchild->d_inode->i_ino != ino) + goto out; rv = fh_compose(fhp, exp, dchild, &cd->fh); out: dput(dchild); return rv; } -static __be32 *encode_entryplus_baggage(struct nfsd3_readdirres *cd, __be32 *p, const char *name, int namlen) +static __be32 *encode_entryplus_baggage(struct nfsd3_readdirres *cd, __be32 *p, const char *name, int namlen, u64 ino) { struct svc_fh *fh = &cd->scratch; __be32 err; fh_init(fh, NFS3_FHSIZE); - err = compose_entry_fh(cd, fh, name, namlen); + err = compose_entry_fh(cd, fh, name, namlen, ino); if (err) { *p++ = 0; *p++ = 0; @@ -927,7 +929,7 @@ encode_entry(struct readdir_cd *ccd, const char *name, int namlen, p = encode_entry_baggage(cd, p, name, namlen, ino); if (plus) - p = encode_entryplus_baggage(cd, p, name, namlen); + p = encode_entryplus_baggage(cd, p, name, namlen, ino); num_entry_words = p - cd->buffer; } else if (*(page+1) != NULL) { /* temporarily encode entry into next page, then move back to @@ -941,7 +943,7 @@ encode_entry(struct readdir_cd *ccd, const char *name, int namlen, p1 = encode_entry_baggage(cd, p1, name, namlen, ino); if (plus) - p1 = encode_entryplus_baggage(cd, p1, name, namlen); + p1 = encode_entryplus_baggage(cd, p1, name, namlen, ino); /* determine entry word length and lengths to go in pages */ num_entry_words = p1 - tmp; diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c index 67242bf7c6cc..eb5accf1b37f 100644 --- a/fs/nfsd/nfs4acl.c +++ b/fs/nfsd/nfs4acl.c @@ -52,10 +52,6 @@ #define NFS4_ANYONE_MODE (NFS4_ACE_READ_ATTRIBUTES | NFS4_ACE_READ_ACL | NFS4_ACE_SYNCHRONIZE) #define NFS4_OWNER_MODE (NFS4_ACE_WRITE_ATTRIBUTES | NFS4_ACE_WRITE_ACL) -/* We don't support these bits; insist they be neither allowed nor denied */ -#define NFS4_MASK_UNSUPP (NFS4_ACE_DELETE | NFS4_ACE_WRITE_OWNER \ - | NFS4_ACE_READ_NAMED_ATTRS | NFS4_ACE_WRITE_NAMED_ATTRS) - /* flags used to simulate posix default ACLs */ #define NFS4_INHERITANCE_FLAGS (NFS4_ACE_FILE_INHERIT_ACE \ | NFS4_ACE_DIRECTORY_INHERIT_ACE) @@ -64,9 +60,6 @@ | NFS4_ACE_INHERIT_ONLY_ACE \ | NFS4_ACE_IDENTIFIER_GROUP) -#define MASK_EQUAL(mask1, mask2) \ - ( ((mask1) & NFS4_ACE_MASK_ALL) == ((mask2) & NFS4_ACE_MASK_ALL) ) - static u32 mask_from_posix(unsigned short perm, unsigned int flags) { @@ -126,11 +119,6 @@ low_mode_from_nfs4(u32 perm, unsigned short *mode, unsigned int flags) *mode |= ACL_EXECUTE; } -struct ace_container { - struct nfs4_ace *ace; - struct list_head ace_l; -}; - static short ace2type(struct nfs4_ace *); static void _posix_to_nfsv4_one(struct posix_acl *, struct nfs4_acl *, unsigned int); @@ -384,7 +372,6 @@ pace_gt(struct posix_acl_entry *pace1, struct posix_acl_entry *pace2) static void sort_pacl_range(struct posix_acl *pacl, int start, int end) { int sorted = 0, i; - struct posix_acl_entry tmp; /* We just do a bubble sort; easy to do in place, and we're not * expecting acl's to be long enough to justify anything more. */ @@ -394,9 +381,8 @@ sort_pacl_range(struct posix_acl *pacl, int start, int end) { if (pace_gt(&pacl->a_entries[i], &pacl->a_entries[i+1])) { sorted = 0; - tmp = pacl->a_entries[i]; - pacl->a_entries[i] = pacl->a_entries[i+1]; - pacl->a_entries[i+1] = tmp; + swap(pacl->a_entries[i], + pacl->a_entries[i + 1]); } } } diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c index 5694cfb7a47b..a49201835a97 100644 --- a/fs/nfsd/nfs4callback.c +++ b/fs/nfsd/nfs4callback.c @@ -455,6 +455,7 @@ static int decode_cb_sequence4res(struct xdr_stream *xdr, if (unlikely(status || cb->cb_status)) return status; + cb->cb_update_seq_nr = true; return decode_cb_sequence4resok(xdr, cb); } @@ -875,6 +876,8 @@ static void nfsd4_cb_prepare(struct rpc_task *task, void *calldata) u32 minorversion = clp->cl_minorversion; cb->cb_minorversion = minorversion; + cb->cb_update_seq_nr = false; + cb->cb_status = 0; if (minorversion) { if (!nfsd41_cb_get_slot(clp, task)) return; @@ -891,9 +894,16 @@ static void nfsd4_cb_done(struct rpc_task *task, void *calldata) clp->cl_minorversion); if (clp->cl_minorversion) { - /* No need for lock, access serialized in nfsd4_cb_prepare */ - if (!task->tk_status) + /* + * No need for lock, access serialized in nfsd4_cb_prepare + * + * RFC5661 20.9.3 + * If CB_SEQUENCE returns an error, then the state of the slot + * (sequence ID, cached reply) MUST NOT change. + */ + if (cb->cb_update_seq_nr) ++clp->cl_cb_session->se_cb_seq_nr; + clear_bit(0, &clp->cl_cb_slot_busy); rpc_wake_up_next(&clp->cl_cb_waitq); dprintk("%s: freed slot, new seqid=%d\n", __func__, @@ -1090,6 +1100,7 @@ void nfsd4_init_cb(struct nfsd4_callback *cb, struct nfs4_client *clp, cb->cb_ops = ops; INIT_WORK(&cb->cb_work, nfsd4_run_cb_work); cb->cb_status = 0; + cb->cb_update_seq_nr = false; cb->cb_need_restart = false; } diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 864e2003e8de..90cfda75313c 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -760,8 +760,6 @@ nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, { __be32 status; - /* no need to check permission - this will be done in nfsd_read() */ - read->rd_filp = NULL; if (read->rd_offset >= OFFSET_MAX) return nfserr_inval; @@ -778,9 +776,9 @@ nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, clear_bit(RQ_SPLICE_OK, &rqstp->rq_flags); /* check stateid */ - if ((status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), - cstate, &read->rd_stateid, - RD_STATE, &read->rd_filp))) { + status = nfs4_preprocess_stateid_op(rqstp, cstate, &read->rd_stateid, + RD_STATE, &read->rd_filp, &read->rd_tmp_file); + if (status) { dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); goto out; } @@ -924,8 +922,8 @@ nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, int err; if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { - status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), cstate, - &setattr->sa_stateid, WR_STATE, NULL); + status = nfs4_preprocess_stateid_op(rqstp, cstate, + &setattr->sa_stateid, WR_STATE, NULL, NULL); if (status) { dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); return status; @@ -986,13 +984,11 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, unsigned long cnt; int nvecs; - /* no need to check permission - this will be done in nfsd_write() */ - if (write->wr_offset >= OFFSET_MAX) return nfserr_inval; - status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), - cstate, stateid, WR_STATE, &filp); + status = nfs4_preprocess_stateid_op(rqstp, cstate, stateid, WR_STATE, + &filp, NULL); if (status) { dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); return status; @@ -1005,11 +1001,10 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, nvecs = fill_in_write_vector(rqstp->rq_vec, write); WARN_ON_ONCE(nvecs > ARRAY_SIZE(rqstp->rq_vec)); - status = nfsd_write(rqstp, &cstate->current_fh, filp, - write->wr_offset, rqstp->rq_vec, nvecs, - &cnt, &write->wr_how_written); - if (filp) - fput(filp); + status = nfsd_vfs_write(rqstp, &cstate->current_fh, filp, + write->wr_offset, rqstp->rq_vec, nvecs, &cnt, + &write->wr_how_written); + fput(filp); write->wr_bytes_written = cnt; @@ -1023,15 +1018,13 @@ nfsd4_fallocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, __be32 status = nfserr_notsupp; struct file *file; - status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), cstate, + status = nfs4_preprocess_stateid_op(rqstp, cstate, &fallocate->falloc_stateid, - WR_STATE, &file); + WR_STATE, &file, NULL); if (status != nfs_ok) { dprintk("NFSD: nfsd4_fallocate: couldn't process stateid!\n"); return status; } - if (!file) - return nfserr_bad_stateid; status = nfsd4_vfs_fallocate(rqstp, &cstate->current_fh, file, fallocate->falloc_offset, @@ -1064,15 +1057,13 @@ nfsd4_seek(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, __be32 status; struct file *file; - status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), cstate, + status = nfs4_preprocess_stateid_op(rqstp, cstate, &seek->seek_stateid, - RD_STATE, &file); + RD_STATE, &file, NULL); if (status) { dprintk("NFSD: nfsd4_seek: couldn't process stateid!\n"); return status; } - if (!file) - return nfserr_bad_stateid; switch (seek->seek_whence) { case NFS4_CONTENT_DATA: @@ -1732,10 +1723,6 @@ encode_op: be32_to_cpu(status)); nfsd4_cstate_clear_replay(cstate); - /* XXX Ugh, we need to get rid of this kind of special case: */ - if (op->opnum == OP_READ && op->u.read.rd_filp) - fput(op->u.read.rd_filp); - nfsd4_increment_op_stats(op->opnum); } diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 039f9c8a95e8..61dfb33f0559 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -3861,7 +3861,7 @@ static __be32 nfs4_upgrade_open(struct svc_rqst *rqstp, struct nfs4_file *fp, struct svc_fh *cur_fh, struct nfs4_ol_stateid *stp, struct nfsd4_open *open) { __be32 status; - unsigned char old_deny_bmap; + unsigned char old_deny_bmap = stp->st_deny_bmap; if (!test_access(open->op_share_access, stp)) return nfs4_get_vfs_file(rqstp, fp, cur_fh, stp, open); @@ -3870,7 +3870,6 @@ nfs4_upgrade_open(struct svc_rqst *rqstp, struct nfs4_file *fp, struct svc_fh *c spin_lock(&fp->fi_lock); status = nfs4_file_check_deny(fp, open->op_share_deny); if (status == nfs_ok) { - old_deny_bmap = stp->st_deny_bmap; set_deny(open->op_share_deny, stp); fp->fi_share_deny |= (open->op_share_deny & NFS4_SHARE_DENY_BOTH); @@ -4574,85 +4573,130 @@ nfsd4_lookup_stateid(struct nfsd4_compound_state *cstate, return nfs_ok; } +static struct file * +nfs4_find_file(struct nfs4_stid *s, int flags) +{ + if (!s) + return NULL; + + switch (s->sc_type) { + case NFS4_DELEG_STID: + if (WARN_ON_ONCE(!s->sc_file->fi_deleg_file)) + return NULL; + return get_file(s->sc_file->fi_deleg_file); + case NFS4_OPEN_STID: + case NFS4_LOCK_STID: + if (flags & RD_STATE) + return find_readable_file(s->sc_file); + else + return find_writeable_file(s->sc_file); + break; + } + + return NULL; +} + +static __be32 +nfs4_check_olstateid(struct svc_fh *fhp, struct nfs4_ol_stateid *ols, int flags) +{ + __be32 status; + + status = nfs4_check_fh(fhp, ols); + if (status) + return status; + status = nfsd4_check_openowner_confirmed(ols); + if (status) + return status; + return nfs4_check_openmode(ols, 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) +{ + int acc = (flags & RD_STATE) ? NFSD_MAY_READ : NFSD_MAY_WRITE; + struct file *file; + __be32 status; + + file = nfs4_find_file(s, flags); + if (file) { + status = nfsd_permission(rqstp, fhp->fh_export, fhp->fh_dentry, + acc | NFSD_MAY_OWNER_OVERRIDE); + if (status) { + fput(file); + return status; + } + + *filpp = file; + } else { + status = nfsd_open(rqstp, fhp, S_IFREG, acc, filpp); + if (status) + return status; + + if (tmp_file) + *tmp_file = true; + } + + return 0; +} + /* -* Checks for stateid operations -*/ + * Checks for stateid operations + */ __be32 -nfs4_preprocess_stateid_op(struct net *net, struct nfsd4_compound_state *cstate, - stateid_t *stateid, int flags, struct file **filpp) +nfs4_preprocess_stateid_op(struct svc_rqst *rqstp, + struct nfsd4_compound_state *cstate, stateid_t *stateid, + int flags, struct file **filpp, bool *tmp_file) { - struct nfs4_stid *s; - struct nfs4_ol_stateid *stp = NULL; - struct nfs4_delegation *dp = NULL; - struct svc_fh *current_fh = &cstate->current_fh; - struct inode *ino = d_inode(current_fh->fh_dentry); + struct svc_fh *fhp = &cstate->current_fh; + struct inode *ino = d_inode(fhp->fh_dentry); + struct net *net = SVC_NET(rqstp); struct nfsd_net *nn = net_generic(net, nfsd_net_id); - struct file *file = NULL; + struct nfs4_stid *s = NULL; __be32 status; if (filpp) *filpp = NULL; + if (tmp_file) + *tmp_file = false; if (grace_disallows_io(net, ino)) return nfserr_grace; - if (ZERO_STATEID(stateid) || ONE_STATEID(stateid)) - return check_special_stateids(net, current_fh, stateid, flags); + if (ZERO_STATEID(stateid) || ONE_STATEID(stateid)) { + status = check_special_stateids(net, fhp, stateid, flags); + goto done; + } status = nfsd4_lookup_stateid(cstate, stateid, NFS4_DELEG_STID|NFS4_OPEN_STID|NFS4_LOCK_STID, &s, nn); if (status) return status; - status = check_stateid_generation(stateid, &s->sc_stateid, nfsd4_has_session(cstate)); + status = check_stateid_generation(stateid, &s->sc_stateid, + nfsd4_has_session(cstate)); if (status) goto out; + switch (s->sc_type) { case NFS4_DELEG_STID: - dp = delegstateid(s); - status = nfs4_check_delegmode(dp, flags); - if (status) - goto out; - if (filpp) { - file = dp->dl_stid.sc_file->fi_deleg_file; - if (!file) { - WARN_ON_ONCE(1); - status = nfserr_serverfault; - goto out; - } - get_file(file); - } + status = nfs4_check_delegmode(delegstateid(s), flags); break; case NFS4_OPEN_STID: case NFS4_LOCK_STID: - stp = openlockstateid(s); - status = nfs4_check_fh(current_fh, stp); - if (status) - goto out; - status = nfsd4_check_openowner_confirmed(stp); - if (status) - goto out; - status = nfs4_check_openmode(stp, flags); - if (status) - goto out; - if (filpp) { - struct nfs4_file *fp = stp->st_stid.sc_file; - - if (flags & RD_STATE) - file = find_readable_file(fp); - else - file = find_writeable_file(fp); - } + status = nfs4_check_olstateid(fhp, openlockstateid(s), flags); break; default: status = nfserr_bad_stateid; - goto out; + break; } - status = nfs_ok; - if (file) - *filpp = file; + +done: + if (!status && filpp) + status = nfs4_check_file(rqstp, fhp, s, filpp, tmp_file, flags); out: - nfs4_put_stid(s); + if (s) + nfs4_put_stid(s); return status; } @@ -5505,7 +5549,7 @@ static __be32 nfsd_test_lock(struct svc_rqst *rqstp, struct svc_fh *fhp, struct __be32 err = nfsd_open(rqstp, fhp, S_IFREG, NFSD_MAY_READ, &file); if (!err) { err = nfserrno(vfs_test_lock(file, lock)); - nfsd_close(file); + fput(file); } return err; } diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 158badf945df..54633858733a 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -33,6 +33,7 @@ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ +#include <linux/file.h> #include <linux/slab.h> #include <linux/namei.h> #include <linux/statfs.h> @@ -2227,7 +2228,6 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, u32 rdattr_err = 0; __be32 status; int err; - int aclsupport = 0; struct nfs4_acl *acl = NULL; void *context = NULL; int contextlen; @@ -2274,19 +2274,15 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, goto out; fhp = tempfh; } - if (bmval0 & (FATTR4_WORD0_ACL | FATTR4_WORD0_ACLSUPPORT - | FATTR4_WORD0_SUPPORTED_ATTRS)) { + if (bmval0 & FATTR4_WORD0_ACL) { err = nfsd4_get_nfs4_acl(rqstp, dentry, &acl); - aclsupport = (err == 0); - if (bmval0 & FATTR4_WORD0_ACL) { - if (err == -EOPNOTSUPP) - bmval0 &= ~FATTR4_WORD0_ACL; - else if (err == -EINVAL) { - status = nfserr_attrnotsupp; - goto out; - } else if (err != 0) - goto out_nfserr; - } + if (err == -EOPNOTSUPP) + bmval0 &= ~FATTR4_WORD0_ACL; + else if (err == -EINVAL) { + status = nfserr_attrnotsupp; + goto out; + } else if (err != 0) + goto out_nfserr; } #ifdef CONFIG_NFSD_V4_SECURITY_LABEL @@ -2338,7 +2334,7 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, u32 word1 = nfsd_suppattrs1(minorversion); u32 word2 = nfsd_suppattrs2(minorversion); - if (!aclsupport) + if (!IS_POSIXACL(dentry->d_inode)) word0 &= ~FATTR4_WORD0_ACL; if (!contextsupport) word2 &= ~FATTR4_WORD2_SECURITY_LABEL; @@ -2486,7 +2482,7 @@ out_acl: p = xdr_reserve_space(xdr, 4); if (!p) goto out_resource; - *p++ = cpu_to_be32(aclsupport ? + *p++ = cpu_to_be32(IS_POSIXACL(dentry->d_inode) ? ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL : 0); } if (bmval0 & FATTR4_WORD0_CANSETTIME) { @@ -3422,52 +3418,51 @@ 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 svc_fh *fhp = read->rd_fhp; int starting_len = xdr->buf->len; - struct raparms *ra; + struct raparms *ra = NULL; __be32 *p; - __be32 err; if (nfserr) - return nfserr; + goto out; 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)); - return nfserr_resource; + nfserr = nfserr_resource; + goto out; } - if (resp->xdr.buf->page_len && test_bit(RQ_SPLICE_OK, &resp->rqstp->rq_flags)) { + if (resp->xdr.buf->page_len && + test_bit(RQ_SPLICE_OK, &resp->rqstp->rq_flags)) { WARN_ON_ONCE(1); - return nfserr_resource; + nfserr = nfserr_resource; + goto out; } xdr_commit_encode(xdr); maxcount = svc_max_payload(resp->rqstp); - maxcount = min_t(unsigned long, maxcount, (xdr->buf->buflen - xdr->buf->len)); + maxcount = min_t(unsigned long, maxcount, + (xdr->buf->buflen - xdr->buf->len)); maxcount = min_t(unsigned long, maxcount, read->rd_length); - if (read->rd_filp) - err = nfsd_permission(resp->rqstp, fhp->fh_export, - fhp->fh_dentry, - NFSD_MAY_READ|NFSD_MAY_OWNER_OVERRIDE); - else - err = nfsd_get_tmp_read_open(resp->rqstp, read->rd_fhp, - &file, &ra); - if (err) - goto err_truncate; + 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)) - err = nfsd4_encode_splice_read(resp, read, file, maxcount); + 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 - err = nfsd4_encode_readv(resp, read, file, maxcount); + nfserr = nfsd4_encode_readv(resp, read, file, maxcount); - if (!read->rd_filp) - nfsd_put_tmp_read_open(file, ra); + if (ra) + nfsd_put_raparams(file, ra); -err_truncate: - if (err) + if (nfserr) xdr_truncate_encode(xdr, starting_len); - return err; + +out: + if (file) + fput(file); + return nfserr; } static __be32 diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c index aecbcd34d336..4cd78ef4c95c 100644 --- a/fs/nfsd/nfsproc.c +++ b/fs/nfsd/nfsproc.c @@ -59,13 +59,61 @@ static __be32 nfsd_proc_setattr(struct svc_rqst *rqstp, struct nfsd_sattrargs *argp, struct nfsd_attrstat *resp) { + struct iattr *iap = &argp->attrs; + struct svc_fh *fhp; __be32 nfserr; + dprintk("nfsd: SETATTR %s, valid=%x, size=%ld\n", SVCFH_fmt(&argp->fh), argp->attrs.ia_valid, (long) argp->attrs.ia_size); - fh_copy(&resp->fh, &argp->fh); - nfserr = nfsd_setattr(rqstp, &resp->fh, &argp->attrs,0, (time_t)0); + fhp = fh_copy(&resp->fh, &argp->fh); + + /* + * NFSv2 does not differentiate between "set-[ac]time-to-now" + * which only requires access, and "set-[ac]time-to-X" which + * requires ownership. + * So if it looks like it might be "set both to the same time which + * is close to now", and if inode_change_ok fails, then we + * convert to "set to now" instead of "set to explicit time" + * + * We only call inode_change_ok as the last test as technically + * it is not an interface that we should be using. + */ +#define BOTH_TIME_SET (ATTR_ATIME_SET | ATTR_MTIME_SET) +#define MAX_TOUCH_TIME_ERROR (30*60) + if ((iap->ia_valid & BOTH_TIME_SET) == BOTH_TIME_SET && + iap->ia_mtime.tv_sec == iap->ia_atime.tv_sec) { + /* + * Looks probable. + * + * Now just make sure time is in the right ballpark. + * Solaris, at least, doesn't seem to care what the time + * request is. We require it be within 30 minutes of now. + */ + time_t delta = iap->ia_atime.tv_sec - get_seconds(); + struct inode *inode; + + nfserr = fh_verify(rqstp, fhp, 0, NFSD_MAY_NOP); + if (nfserr) + goto done; + inode = d_inode(fhp->fh_dentry); + + if (delta < 0) + delta = -delta; + if (delta < MAX_TOUCH_TIME_ERROR && + inode_change_ok(inode, iap) != 0) { + /* + * Turn off ATTR_[AM]TIME_SET but leave ATTR_[AM]TIME. + * This will cause notify_change to set these times + * to "now" + */ + iap->ia_valid &= ~BOTH_TIME_SET; + } + } + + nfserr = nfsd_setattr(rqstp, fhp, iap, 0, (time_t)0); +done: return nfsd_return_attrs(nfserr, resp); } diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index dbc4f85a5008..4874ce515fc1 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -68,6 +68,7 @@ struct nfsd4_callback { struct nfsd4_callback_ops *cb_ops; struct work_struct cb_work; int cb_status; + bool cb_update_seq_nr; bool cb_need_restart; }; @@ -582,9 +583,9 @@ enum nfsd4_cb_op { struct nfsd4_compound_state; struct nfsd_net; -extern __be32 nfs4_preprocess_stateid_op(struct net *net, - struct nfsd4_compound_state *cstate, - stateid_t *stateid, int flags, struct file **filp); +extern __be32 nfs4_preprocess_stateid_op(struct svc_rqst *rqstp, + struct nfsd4_compound_state *cstate, stateid_t *stateid, + int flags, struct file **filp, bool *tmp_file); __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/vfs.c b/fs/nfsd/vfs.c index 84d770be056e..b5e077a6e7d4 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -302,42 +302,6 @@ commit_metadata(struct svc_fh *fhp) static void nfsd_sanitize_attrs(struct inode *inode, struct iattr *iap) { - /* - * NFSv2 does not differentiate between "set-[ac]time-to-now" - * which only requires access, and "set-[ac]time-to-X" which - * requires ownership. - * So if it looks like it might be "set both to the same time which - * is close to now", and if inode_change_ok fails, then we - * convert to "set to now" instead of "set to explicit time" - * - * We only call inode_change_ok as the last test as technically - * it is not an interface that we should be using. - */ -#define BOTH_TIME_SET (ATTR_ATIME_SET | ATTR_MTIME_SET) -#define MAX_TOUCH_TIME_ERROR (30*60) - if ((iap->ia_valid & BOTH_TIME_SET) == BOTH_TIME_SET && - iap->ia_mtime.tv_sec == iap->ia_atime.tv_sec) { - /* - * Looks probable. - * - * Now just make sure time is in the right ballpark. - * Solaris, at least, doesn't seem to care what the time - * request is. We require it be within 30 minutes of now. - */ - time_t delta = iap->ia_atime.tv_sec - get_seconds(); - if (delta < 0) - delta = -delta; - if (delta < MAX_TOUCH_TIME_ERROR && - inode_change_ok(inode, iap) != 0) { - /* - * Turn off ATTR_[AM]TIME_SET but leave ATTR_[AM]TIME. - * This will cause notify_change to set these times - * to "now" - */ - iap->ia_valid &= ~BOTH_TIME_SET; - } - } - /* sanitize the mode change */ if (iap->ia_valid & ATTR_MODE) { iap->ia_mode &= S_IALLUGO; @@ -538,16 +502,11 @@ __be32 nfsd4_vfs_fallocate(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file, loff_t offset, loff_t len, int flags) { - __be32 err; int error; if (!S_ISREG(file_inode(file)->i_mode)) return nfserr_inval; - err = nfsd_permission(rqstp, fhp->fh_export, fhp->fh_dentry, NFSD_MAY_WRITE); - if (err) - return err; - error = vfs_fallocate(file, flags, offset, len); if (!error) error = commit_metadata(fhp); @@ -744,7 +703,7 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type, host_err = ima_file_check(file, may_flags, 0); if (host_err) { - nfsd_close(file); + fput(file); goto out_nfserr; } @@ -761,23 +720,12 @@ out: return err; } -/* - * Close a file. - */ -void -nfsd_close(struct file *filp) -{ - fput(filp); -} - -/* - * Obtain the readahead parameters for the file - * specified by (dev, ino). - */ - -static inline struct raparms * -nfsd_get_raparms(dev_t dev, ino_t ino) +struct raparms * +nfsd_init_raparms(struct file *file) { + struct inode *inode = file_inode(file); + dev_t dev = inode->i_sb->s_dev; + ino_t ino = inode->i_ino; struct raparms *ra, **rap, **frap = NULL; int depth = 0; unsigned int hash; @@ -814,9 +762,23 @@ found: ra->p_count++; nfsdstats.ra_depth[depth*10/nfsdstats.ra_size]++; spin_unlock(&rab->pb_lock); + + if (ra->p_set) + file->f_ra = ra->p_ra; return ra; } +void nfsd_put_raparams(struct file *file, struct raparms *ra) +{ + struct raparm_hbucket *rab = &raparm_hash[ra->p_hindex]; + + spin_lock(&rab->pb_lock); + ra->p_ra = file->f_ra; + ra->p_set = 1; + ra->p_count--; + spin_unlock(&rab->pb_lock); +} + /* * Grab and keep cached pages associated with a file in the svc_rqst * so that they can be passed to the network sendmsg/sendpage routines @@ -945,7 +907,7 @@ static int wait_for_concurrent_writes(struct file *file) return err; } -static __be32 +__be32 nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file, loff_t offset, struct kvec *vec, int vlen, unsigned long *cnt, int *stablep) @@ -1009,40 +971,6 @@ out_nfserr: return err; } -__be32 nfsd_get_tmp_read_open(struct svc_rqst *rqstp, struct svc_fh *fhp, - struct file **file, struct raparms **ra) -{ - struct inode *inode; - __be32 err; - - err = nfsd_open(rqstp, fhp, S_IFREG, NFSD_MAY_READ, file); - if (err) - return err; - - inode = file_inode(*file); - - /* Get readahead parameters */ - *ra = nfsd_get_raparms(inode->i_sb->s_dev, inode->i_ino); - - if (*ra && (*ra)->p_set) - (*file)->f_ra = (*ra)->p_ra; - return nfs_ok; -} - -void nfsd_put_tmp_read_open(struct file *file, struct raparms *ra) -{ - /* Write back readahead params */ - if (ra) { - struct raparm_hbucket *rab = &raparm_hash[ra->p_hindex]; - spin_lock(&rab->pb_lock); - ra->p_ra = file->f_ra; - ra->p_set = 1; - ra->p_count--; - spin_unlock(&rab->pb_lock); - } - nfsd_close(file); -} - /* * Read data from a file. count must contain the requested read count * on entry. On return, *count contains the number of bytes actually read. @@ -1055,13 +983,15 @@ __be32 nfsd_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct raparms *ra; __be32 err; - err = nfsd_get_tmp_read_open(rqstp, fhp, &file, &ra); + err = nfsd_open(rqstp, fhp, S_IFREG, NFSD_MAY_READ, &file); if (err) return err; + ra = nfsd_init_raparms(file); err = nfsd_vfs_read(rqstp, file, offset, vec, vlen, count); - - nfsd_put_tmp_read_open(file, ra); + if (ra) + nfsd_put_raparams(file, ra); + fput(file); return err; } @@ -1093,7 +1023,7 @@ nfsd_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file, if (cnt) err = nfsd_vfs_write(rqstp, fhp, file, offset, vec, vlen, cnt, stablep); - nfsd_close(file); + fput(file); } out: return err; @@ -1138,7 +1068,7 @@ nfsd_commit(struct svc_rqst *rqstp, struct svc_fh *fhp, err = nfserr_notsupp; } - nfsd_close(file); + fput(file); out: return err; } @@ -1977,7 +1907,7 @@ nfsd_readdir(struct svc_rqst *rqstp, struct svc_fh *fhp, loff_t *offsetp, if (err == nfserr_eof || err == nfserr_toosmall) err = nfs_ok; /* can still be found in ->err */ out_close: - nfsd_close(file); + fput(file); out: return err; } diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h index 2050cb016998..5be875e3e638 100644 --- a/fs/nfsd/vfs.h +++ b/fs/nfsd/vfs.h @@ -71,11 +71,7 @@ __be32 nfsd_commit(struct svc_rqst *, struct svc_fh *, #endif /* CONFIG_NFSD_V3 */ __be32 nfsd_open(struct svc_rqst *, struct svc_fh *, umode_t, int, struct file **); -void nfsd_close(struct file *); struct raparms; -__be32 nfsd_get_tmp_read_open(struct svc_rqst *, struct svc_fh *, - struct file **, struct raparms **); -void nfsd_put_tmp_read_open(struct file *, struct raparms *); __be32 nfsd_splice_read(struct svc_rqst *, struct file *, loff_t, unsigned long *); __be32 nfsd_readv(struct file *, loff_t, struct kvec *, int, @@ -84,6 +80,10 @@ __be32 nfsd_read(struct svc_rqst *, struct svc_fh *, loff_t, struct kvec *, int, unsigned long *); __be32 nfsd_write(struct svc_rqst *, struct svc_fh *,struct file *, loff_t, struct kvec *,int, unsigned long *, int *); +__be32 nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, + struct file *file, loff_t offset, + struct kvec *vec, int vlen, unsigned long *cnt, + int *stablep); __be32 nfsd_readlink(struct svc_rqst *, struct svc_fh *, char *, int *); __be32 nfsd_symlink(struct svc_rqst *, struct svc_fh *, @@ -104,6 +104,9 @@ __be32 nfsd_statfs(struct svc_rqst *, struct svc_fh *, __be32 nfsd_permission(struct svc_rqst *, struct svc_export *, struct dentry *, int); +struct raparms *nfsd_init_raparms(struct file *file); +void nfsd_put_raparams(struct file *file, struct raparms *ra); + static inline int fh_want_write(struct svc_fh *fh) { int ret = mnt_want_write(fh->fh_export->ex_path.mnt); diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h index 2f8c092be2b3..9f991007a578 100644 --- a/fs/nfsd/xdr4.h +++ b/fs/nfsd/xdr4.h @@ -273,6 +273,7 @@ struct nfsd4_read { u32 rd_length; /* request */ int rd_vlen; struct file *rd_filp; + bool rd_tmp_file; struct svc_rqst *rd_rqstp; /* response */ struct svc_fh * rd_fhp; /* response */ |