From bfeea1dc1c9238f9e5a17a265489ecd0d19f66bb Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 20 Jun 2012 09:58:35 -0400 Subject: SUNRPC: Don't decode beyond the end of the RPC reply message Now that xdr_inline_decode() will automatically cross into the page buffers, we need to ensure that it doesn't exceed the total reply message length. This patch sets up a counter that tracks the number of words remaining in the reply message, and ensures that xdr_inline_decode, xdr_read_pages and xdr_enter_page respect the end of message boundary. Signed-off-by: Trond Myklebust --- include/linux/sunrpc/xdr.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h index af70af333546..f1e7f884d1c3 100644 --- a/include/linux/sunrpc/xdr.h +++ b/include/linux/sunrpc/xdr.h @@ -205,6 +205,7 @@ struct xdr_stream { struct kvec *iov; /* pointer to the current kvec */ struct kvec scratch; /* Scratch buffer */ struct page **page_ptr; /* pointer to the current page */ + unsigned int nwords; /* Remaining decode buffer length */ }; /* -- cgit v1.2.3 From c337d3655ce85e12c7c476cb81406521926cacd2 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 21 Jun 2012 17:05:37 -0400 Subject: SUNRPC: xdr_read_pages should return the amount of XDR encoded page data Callers of xdr_read_pages() will want to know exactly how much XDR data is encoded in the pages after the data realignment. Signed-off-by: Trond Myklebust --- include/linux/sunrpc/xdr.h | 2 +- net/sunrpc/xdr.c | 9 ++++++--- 2 files changed, 7 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h index f1e7f884d1c3..2489bce1fb88 100644 --- a/include/linux/sunrpc/xdr.h +++ b/include/linux/sunrpc/xdr.h @@ -223,7 +223,7 @@ extern void xdr_init_decode_pages(struct xdr_stream *xdr, struct xdr_buf *buf, struct page **pages, unsigned int len); extern void xdr_set_scratch_buffer(struct xdr_stream *xdr, void *buf, size_t buflen); extern __be32 *xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes); -extern void xdr_read_pages(struct xdr_stream *xdr, unsigned int len); +extern unsigned int xdr_read_pages(struct xdr_stream *xdr, unsigned int len); extern void xdr_enter_page(struct xdr_stream *xdr, unsigned int len); extern int xdr_process_buf(struct xdr_buf *buf, unsigned int offset, unsigned int len, int (*actor)(struct scatterlist *, void *), void *data); diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c index 5643feb6c645..80d518644cf8 100644 --- a/net/sunrpc/xdr.c +++ b/net/sunrpc/xdr.c @@ -745,8 +745,10 @@ EXPORT_SYMBOL_GPL(xdr_inline_decode); * Moves data beyond the current pointer position from the XDR head[] buffer * into the page list. Any data that lies beyond current position + "len" * bytes is moved into the XDR tail[]. + * + * Returns the number of XDR encoded bytes now contained in the pages */ -void xdr_read_pages(struct xdr_stream *xdr, unsigned int len) +unsigned int xdr_read_pages(struct xdr_stream *xdr, unsigned int len) { struct xdr_buf *buf = xdr->buf; struct kvec *iov; @@ -756,7 +758,7 @@ void xdr_read_pages(struct xdr_stream *xdr, unsigned int len) int padding; if (xdr->nwords == 0) - return; + return 0; if (nwords > xdr->nwords) { nwords = xdr->nwords; len = nwords << 2; @@ -787,6 +789,7 @@ void xdr_read_pages(struct xdr_stream *xdr, unsigned int len) xdr->end = (__be32 *)((char *)iov->iov_base + end); xdr->page_ptr = NULL; xdr->nwords = XDR_QUADLEN(end - padding); + return len; } EXPORT_SYMBOL_GPL(xdr_read_pages); @@ -802,7 +805,7 @@ EXPORT_SYMBOL_GPL(xdr_read_pages); */ void xdr_enter_page(struct xdr_stream *xdr, unsigned int len) { - xdr_read_pages(xdr, len); + len = xdr_read_pages(xdr, len); /* * Position current pointer at beginning of tail, and * set remaining message length. -- cgit v1.2.3 From 4517d526c8aa31b5c14165ef180cc19518ff0a35 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 21 Jun 2012 17:14:46 -0400 Subject: SUNRPC: Add the helper xdr_stream_pos Add a helper to report the current offset from the start of the xdr_stream. Signed-off-by: Trond Myklebust --- include/linux/sunrpc/xdr.h | 1 + net/sunrpc/xdr.c | 10 ++++++++++ 2 files changed, 11 insertions(+) (limited to 'include') diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h index 2489bce1fb88..647faf2289a7 100644 --- a/include/linux/sunrpc/xdr.h +++ b/include/linux/sunrpc/xdr.h @@ -218,6 +218,7 @@ extern void xdr_init_encode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 extern __be32 *xdr_reserve_space(struct xdr_stream *xdr, size_t nbytes); extern void xdr_write_pages(struct xdr_stream *xdr, struct page **pages, unsigned int base, unsigned int len); +extern unsigned int xdr_stream_pos(const struct xdr_stream *xdr); extern void xdr_init_decode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p); extern void xdr_init_decode_pages(struct xdr_stream *xdr, struct xdr_buf *buf, struct page **pages, unsigned int len); diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c index 80d518644cf8..95980a5cd0a8 100644 --- a/net/sunrpc/xdr.c +++ b/net/sunrpc/xdr.c @@ -454,6 +454,16 @@ xdr_shift_buf(struct xdr_buf *buf, size_t len) } EXPORT_SYMBOL_GPL(xdr_shift_buf); +/** + * xdr_stream_pos - Return the current offset from the start of the xdr_stream + * @xdr: pointer to struct xdr_stream + */ +unsigned int xdr_stream_pos(const struct xdr_stream *xdr) +{ + return (unsigned int)(XDR_QUADLEN(xdr->buf->len) - xdr->nwords) << 2; +} +EXPORT_SYMBOL_GPL(xdr_stream_pos); + /** * xdr_init_encode - Initialize a struct xdr_stream for sending data. * @xdr: pointer to xdr_stream struct -- cgit v1.2.3 From 140150dbb1f9cf3ef963fb55505f994d74ff3276 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 5 Jun 2012 15:20:25 -0400 Subject: SUNRPC: Remove unused function xdr_encode_pages Signed-off-by: Trond Myklebust --- fs/nfs/nfs4proc.c | 4 +--- include/linux/sunrpc/xdr.h | 2 -- net/sunrpc/xdr.c | 28 ---------------------------- 3 files changed, 1 insertion(+), 33 deletions(-) (limited to 'include') diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 15fc7e4664ed..5a7b3723cc6f 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -2766,9 +2766,7 @@ static int nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry) * * In the case of WRITE, we also want to put the GETATTR after * the operation -- in this case because we want to make sure - * we get the post-operation mtime and size. This means that - * we can't use xdr_encode_pages() as written: we need a variant - * of it which would leave room in the 'tail' iovec. + * we get the post-operation mtime and size. * * Both of these changes to the XDR layer would in fact be quite * minor, but I decided to leave them for a subsequent patch. diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h index 647faf2289a7..63988990bd36 100644 --- a/include/linux/sunrpc/xdr.h +++ b/include/linux/sunrpc/xdr.h @@ -104,8 +104,6 @@ __be32 *xdr_decode_string_inplace(__be32 *p, char **sp, unsigned int *lenp, __be32 *xdr_encode_netobj(__be32 *p, const struct xdr_netobj *); __be32 *xdr_decode_netobj(__be32 *p, struct xdr_netobj *); -void xdr_encode_pages(struct xdr_buf *, struct page **, unsigned int, - unsigned int); void xdr_inline_pages(struct xdr_buf *, unsigned int, struct page **, unsigned int, unsigned int); void xdr_terminate_string(struct xdr_buf *, const u32); diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c index 2e3694eccd82..d65d380571bc 100644 --- a/net/sunrpc/xdr.c +++ b/net/sunrpc/xdr.c @@ -128,34 +128,6 @@ xdr_terminate_string(struct xdr_buf *buf, const u32 len) } EXPORT_SYMBOL_GPL(xdr_terminate_string); -void -xdr_encode_pages(struct xdr_buf *xdr, struct page **pages, unsigned int base, - unsigned int len) -{ - struct kvec *tail = xdr->tail; - u32 *p; - - xdr->pages = pages; - xdr->page_base = base; - xdr->page_len = len; - - p = (u32 *)xdr->head[0].iov_base + XDR_QUADLEN(xdr->head[0].iov_len); - tail->iov_base = p; - tail->iov_len = 0; - - if (len & 3) { - unsigned int pad = 4 - (len & 3); - - *p = 0; - tail->iov_base = (char *)p + (len & 3); - tail->iov_len = pad; - len += pad; - } - xdr->buflen += len; - xdr->len += len; -} -EXPORT_SYMBOL_GPL(xdr_encode_pages); - void xdr_inline_pages(struct xdr_buf *xdr, unsigned int offset, struct page **pages, unsigned int base, unsigned int len) -- cgit v1.2.3 From 2f2c63bc221c5fcded24de2704575d0abf96b910 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 8 Jun 2012 11:56:09 -0400 Subject: NFS: Cleanup - only store the write verifier in struct nfs_page The 'committed' field is not needed once we have put the struct nfs_page on the right list. Also correct the type of the verifier: it is not an array of __be32, but simply an 8 byte long opaque array. Signed-off-by: Trond Myklebust --- fs/nfs/nfs3xdr.c | 12 +++++++----- fs/nfs/nfs4filelayout.c | 6 +++--- fs/nfs/nfs4xdr.c | 12 ++++++++---- fs/nfs/write.c | 4 ++-- include/linux/nfs_page.h | 2 +- include/linux/nfs_xdr.h | 6 +++++- 6 files changed, 26 insertions(+), 16 deletions(-) (limited to 'include') diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c index 5013bdd85ab9..6cbe89400dfc 100644 --- a/fs/nfs/nfs3xdr.c +++ b/fs/nfs/nfs3xdr.c @@ -325,14 +325,14 @@ static void encode_createverf3(struct xdr_stream *xdr, const __be32 *verifier) memcpy(p, verifier, NFS3_CREATEVERFSIZE); } -static int decode_writeverf3(struct xdr_stream *xdr, __be32 *verifier) +static int decode_writeverf3(struct xdr_stream *xdr, struct nfs_write_verifier *verifier) { __be32 *p; p = xdr_inline_decode(xdr, NFS3_WRITEVERFSIZE); if (unlikely(p == NULL)) goto out_overflow; - memcpy(verifier, p, NFS3_WRITEVERFSIZE); + memcpy(verifier->data, p, NFS3_WRITEVERFSIZE); return 0; out_overflow: print_overflow_msg(__func__, xdr); @@ -1668,20 +1668,22 @@ static int decode_write3resok(struct xdr_stream *xdr, { __be32 *p; - p = xdr_inline_decode(xdr, 4 + 4 + NFS3_WRITEVERFSIZE); + p = xdr_inline_decode(xdr, 4 + 4); if (unlikely(p == NULL)) goto out_overflow; result->count = be32_to_cpup(p++); result->verf->committed = be32_to_cpup(p++); if (unlikely(result->verf->committed > NFS_FILE_SYNC)) goto out_badvalue; - memcpy(result->verf->verifier, p, NFS3_WRITEVERFSIZE); + if (decode_writeverf3(xdr, &result->verf->verifier)) + goto out_eio; return result->count; out_badvalue: dprintk("NFS: bad stable_how value: %u\n", result->verf->committed); return -EIO; out_overflow: print_overflow_msg(__func__, xdr); +out_eio: return -EIO; } @@ -2314,7 +2316,7 @@ static int nfs3_xdr_dec_commit3res(struct rpc_rqst *req, goto out; if (status != NFS3_OK) goto out_status; - error = decode_writeverf3(xdr, result->verf->verifier); + error = decode_writeverf3(xdr, &result->verf->verifier); out: return error; out_status: diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index e1340293872c..85b70639921b 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -351,9 +351,9 @@ static void prepare_to_resend_writes(struct nfs_commit_data *data) struct nfs_page *first = nfs_list_entry(data->pages.next); data->task.tk_status = 0; - memcpy(data->verf.verifier, first->wb_verf.verifier, - sizeof(first->wb_verf.verifier)); - data->verf.verifier[0]++; /* ensure verifier mismatch */ + memcpy(&data->verf.verifier, &first->wb_verf, + sizeof(data->verf.verifier)); + data->verf.verifier.data[0]++; /* ensure verifier mismatch */ } static int filelayout_commit_done_cb(struct rpc_task *task, diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 1e2c47b3889d..610ebccbde5d 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -4158,13 +4158,18 @@ static int decode_verifier(struct xdr_stream *xdr, void *verifier) return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE); } +static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier) +{ + return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE); +} + static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res) { int status; status = decode_op_hdr(xdr, OP_COMMIT); if (!status) - status = decode_verifier(xdr, res->verf->verifier); + status = decode_write_verifier(xdr, &res->verf->verifier); return status; } @@ -5192,13 +5197,12 @@ static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) if (status) return status; - p = xdr_inline_decode(xdr, 16); + p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) goto out_overflow; res->count = be32_to_cpup(p++); res->verf->committed = be32_to_cpup(p++); - memcpy(res->verf->verifier, p, NFS4_VERIFIER_SIZE); - return 0; + return decode_write_verifier(xdr, &res->verf->verifier); out_overflow: print_overflow_msg(__func__, xdr); return -EIO; diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 4d6861c0dc14..ee929e5e1f7b 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -620,7 +620,7 @@ static void nfs_write_completion(struct nfs_pgio_header *hdr) goto next; } if (test_bit(NFS_IOHDR_NEED_COMMIT, &hdr->flags)) { - memcpy(&req->wb_verf, hdr->verf, sizeof(req->wb_verf)); + memcpy(&req->wb_verf, &hdr->verf->verifier, sizeof(req->wb_verf)); nfs_mark_request_commit(req, hdr->lseg, &cinfo); goto next; } @@ -1547,7 +1547,7 @@ static void nfs_commit_release_pages(struct nfs_commit_data *data) /* Okay, COMMIT succeeded, apparently. Check the verifier * returned by the server against all stored verfs. */ - if (!memcmp(req->wb_verf.verifier, data->verf.verifier, sizeof(data->verf.verifier))) { + if (!memcmp(&req->wb_verf, &data->verf.verifier, sizeof(req->wb_verf))) { /* We have a match */ nfs_inode_remove_request(req); dprintk(" OK\n"); diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index 88d166b555e8..880805774f9f 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -42,7 +42,7 @@ struct nfs_page { wb_bytes; /* Length of request */ struct kref wb_kref; /* reference count */ unsigned long wb_flags; - struct nfs_writeverf wb_verf; /* Commit cookie */ + struct nfs_write_verifier wb_verf; /* Commit cookie */ }; struct nfs_pageio_descriptor; diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 8aadd90b808a..5c0014d1c969 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -514,9 +514,13 @@ struct nfs_writeargs { struct nfs4_sequence_args seq_args; }; +struct nfs_write_verifier { + char data[8]; +}; + struct nfs_writeverf { + struct nfs_write_verifier verifier; enum nfs3_stable_how committed; - __be32 verifier[2]; }; struct nfs_writeres { -- cgit v1.2.3 From 011e2a7fd5e9e0c2fdba6b9466d53fc437f8bfaf Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Wed, 20 Jun 2012 15:53:43 -0400 Subject: NFS: Create a have_delegation rpc_op Delegations are a v4 feature, so push them out of the generic code. Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust --- fs/nfs/delegation.c | 2 +- fs/nfs/delegation.h | 9 ++------- fs/nfs/dir.c | 2 +- fs/nfs/file.c | 6 +++--- fs/nfs/inode.c | 2 +- fs/nfs/nfs3proc.c | 6 ++++++ fs/nfs/nfs4proc.c | 5 +++-- fs/nfs/proc.c | 6 ++++++ fs/nfs/write.c | 2 +- include/linux/nfs_xdr.h | 1 + 10 files changed, 25 insertions(+), 16 deletions(-) (limited to 'include') diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index 9a7a1b488af9..36c7c647a1d0 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -47,7 +47,7 @@ void nfs_mark_delegation_referenced(struct nfs_delegation *delegation) * * Returns one if inode has the indicated delegation, otherwise zero. */ -int nfs_have_delegation(struct inode *inode, fmode_t flags) +int nfs4_have_delegation(struct inode *inode, fmode_t flags) { struct nfs_delegation *delegation; int ret = 0; diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h index 206db5679996..d134fc5fda70 100644 --- a/fs/nfs/delegation.h +++ b/fs/nfs/delegation.h @@ -56,14 +56,9 @@ int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl); bool nfs4_copy_delegation_stateid(nfs4_stateid *dst, struct inode *inode, fmode_t flags); void nfs_mark_delegation_referenced(struct nfs_delegation *delegation); -int nfs_have_delegation(struct inode *inode, fmode_t flags); +int nfs4_have_delegation(struct inode *inode, fmode_t flags); #else -static inline int nfs_have_delegation(struct inode *inode, fmode_t flags) -{ - return 0; -} - static inline int nfs_inode_return_delegation(struct inode *inode) { nfs_wb_all(inode); @@ -73,7 +68,7 @@ static inline int nfs_inode_return_delegation(struct inode *inode) static inline int nfs_have_delegated_attributes(struct inode *inode) { - return nfs_have_delegation(inode, FMODE_READ) && + return NFS_PROTO(inode)->have_delegation(inode, FMODE_READ) && !(NFS_I(inode)->cache_validity & NFS_INO_REVAL_FORCED); } diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index f430057ff3b3..4a3e23aea143 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1144,7 +1144,7 @@ static int nfs_lookup_revalidate(struct dentry *dentry, struct nameidata *nd) goto out_bad; } - if (nfs_have_delegation(inode, FMODE_READ)) + if (NFS_PROTO(dir)->have_delegation(inode, FMODE_READ)) goto out_set_verifier; /* Force a full look up iff the parent directory has changed */ diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 8941ac41c59b..57a22a1533e2 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -178,7 +178,7 @@ nfs_file_flush(struct file *file, fl_owner_t id) * If we're holding a write delegation, then just start the i/o * but don't wait for completion (or send a commit). */ - if (nfs_have_delegation(inode, FMODE_WRITE)) + if (NFS_PROTO(inode)->have_delegation(inode, FMODE_WRITE)) return filemap_fdatawrite(file->f_mapping); /* Flush writes to the server and return any errors */ @@ -677,7 +677,7 @@ do_getlk(struct file *filp, int cmd, struct file_lock *fl, int is_local) } fl->fl_type = saved_type; - if (nfs_have_delegation(inode, FMODE_READ)) + if (NFS_PROTO(inode)->have_delegation(inode, FMODE_READ)) goto out_noconflict; if (is_local) @@ -772,7 +772,7 @@ do_setlk(struct file *filp, int cmd, struct file_lock *fl, int is_local) * This makes locking act as a cache coherency point. */ nfs_sync_mapping(filp->f_mapping); - if (!nfs_have_delegation(inode, FMODE_READ)) { + if (!NFS_PROTO(inode)->have_delegation(inode, FMODE_READ)) { if (is_time_granular(&NFS_SERVER(inode)->time_delta)) __nfs_revalidate_inode(NFS_SERVER(inode), inode); else diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index f7296983eba6..0f0b928ef252 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -1457,7 +1457,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode))) invalid &= ~NFS_INO_INVALID_DATA; - if (!nfs_have_delegation(inode, FMODE_READ) || + if (!NFS_PROTO(inode)->have_delegation(inode, FMODE_READ) || (save_cache_validity & NFS_INO_REVAL_FORCED)) nfsi->cache_validity |= invalid; diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c index 2292a0fd2bff..08f832634ef9 100644 --- a/fs/nfs/nfs3proc.c +++ b/fs/nfs/nfs3proc.c @@ -877,6 +877,11 @@ nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl) return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl); } +static int nfs3_have_delegation(struct inode *inode, fmode_t flags) +{ + return 0; +} + const struct nfs_rpc_ops nfs_v3_clientops = { .version = 3, /* protocol version */ .dentry_ops = &nfs_dentry_operations, @@ -921,5 +926,6 @@ const struct nfs_rpc_ops nfs_v3_clientops = { .lock = nfs3_proc_lock, .clear_acl_cache = nfs3_forget_cached_acls, .close_context = nfs_close_context, + .have_delegation = nfs3_have_delegation, .init_client = nfs_init_client, }; diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index e9a8ad2df7af..86f428bb5e07 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -294,7 +294,7 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc case 0: return 0; case -NFS4ERR_OPENMODE: - if (inode && nfs_have_delegation(inode, FMODE_READ)) { + if (inode && nfs4_have_delegation(inode, FMODE_READ)) { nfs_inode_return_delegation(inode); exception->retry = 1; return 0; @@ -3466,7 +3466,7 @@ bool nfs4_write_need_cache_consistency_data(const struct nfs_write_data *data) /* Otherwise, request attributes if and only if we don't hold * a delegation */ - return nfs_have_delegation(hdr->inode, FMODE_READ) == 0; + return nfs4_have_delegation(hdr->inode, FMODE_READ) == 0; } static void nfs4_proc_write_setup(struct nfs_write_data *data, struct rpc_message *msg) @@ -6804,6 +6804,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = { .clear_acl_cache = nfs4_zap_acl_attr, .close_context = nfs4_close_context, .open_context = nfs4_atomic_open, + .have_delegation = nfs4_have_delegation, .init_client = nfs4_init_client, }; diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c index 617c7419a08e..4aed3ddf9bba 100644 --- a/fs/nfs/proc.c +++ b/fs/nfs/proc.c @@ -734,6 +734,11 @@ out_einval: return -EINVAL; } +static int nfs_have_delegation(struct inode *inode, fmode_t flags) +{ + return 0; +} + const struct nfs_rpc_ops nfs_v2_clientops = { .version = 2, /* protocol version */ .dentry_ops = &nfs_dentry_operations, @@ -777,5 +782,6 @@ const struct nfs_rpc_ops nfs_v2_clientops = { .lock = nfs_proc_lock, .lock_check_bounds = nfs_lock_check_bounds, .close_context = nfs_close_context, + .have_delegation = nfs_have_delegation, .init_client = nfs_init_client, }; diff --git a/fs/nfs/write.c b/fs/nfs/write.c index ee929e5e1f7b..f163355b9618 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -410,7 +410,7 @@ static void nfs_inode_add_request(struct inode *inode, struct nfs_page *req) nfs_lock_request(req); spin_lock(&inode->i_lock); - if (!nfsi->npages && nfs_have_delegation(inode, FMODE_WRITE)) + if (!nfsi->npages && NFS_PROTO(inode)->have_delegation(inode, FMODE_WRITE)) inode->i_version++; set_bit(PG_MAPPED, &req->wb_flags); SetPagePrivate(req->wb_page); diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 5c0014d1c969..8787f77c64b3 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -1422,6 +1422,7 @@ struct nfs_rpc_ops { struct nfs_open_context *ctx, int open_flags, struct iattr *iattr); + int (*have_delegation)(struct inode *, fmode_t); struct nfs_client * (*init_client) (struct nfs_client *, const struct rpc_timeout *, const char *, rpc_authflavor_t); -- cgit v1.2.3 From 57ec14c55dee2733330327499d16e40f8c23219e Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Wed, 20 Jun 2012 15:53:44 -0400 Subject: NFS: Create a return_delegation rpc op Delegations are a v4 feature, so push return_delegation out of the generic client by creating a new rpc_op and renaming the old function to be in the nfs v4 "namespace" Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust --- fs/nfs/delegation.c | 2 +- fs/nfs/delegation.h | 8 +------- fs/nfs/dir.c | 8 ++++---- fs/nfs/inode.c | 2 +- fs/nfs/nfs3proc.c | 7 +++++++ fs/nfs/nfs4proc.c | 7 ++++--- fs/nfs/proc.c | 7 +++++++ fs/nfs/unlink.c | 2 +- include/linux/nfs_xdr.h | 1 + 9 files changed, 27 insertions(+), 17 deletions(-) (limited to 'include') diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index 36c7c647a1d0..81c5eec3cf38 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -388,7 +388,7 @@ void nfs_inode_return_delegation_noreclaim(struct inode *inode) * * Returns zero on success, or a negative errno value. */ -int nfs_inode_return_delegation(struct inode *inode) +int nfs4_inode_return_delegation(struct inode *inode) { struct nfs_server *server = NFS_SERVER(inode); struct nfs_inode *nfsi = NFS_I(inode); diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h index d134fc5fda70..1f3ccd934635 100644 --- a/fs/nfs/delegation.h +++ b/fs/nfs/delegation.h @@ -33,7 +33,7 @@ enum { int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res); void nfs_inode_reclaim_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res); -int nfs_inode_return_delegation(struct inode *inode); +int nfs4_inode_return_delegation(struct inode *inode); int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid); void nfs_inode_return_delegation_noreclaim(struct inode *inode); @@ -58,12 +58,6 @@ bool nfs4_copy_delegation_stateid(nfs4_stateid *dst, struct inode *inode, fmode_ void nfs_mark_delegation_referenced(struct nfs_delegation *delegation); int nfs4_have_delegation(struct inode *inode, fmode_t flags); -#else -static inline int nfs_inode_return_delegation(struct inode *inode) -{ - nfs_wb_all(inode); - return 0; -} #endif static inline int nfs_have_delegated_attributes(struct inode *inode) diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 4a3e23aea143..68e451f59305 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1778,7 +1778,7 @@ static int nfs_safe_remove(struct dentry *dentry) } if (inode != NULL) { - nfs_inode_return_delegation(inode); + NFS_PROTO(inode)->return_delegation(inode); error = NFS_PROTO(dir)->remove(dir, &dentry->d_name); /* The VFS may want to delete this inode */ if (error == 0) @@ -1906,7 +1906,7 @@ nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry) old_dentry->d_parent->d_name.name, old_dentry->d_name.name, dentry->d_parent->d_name.name, dentry->d_name.name); - nfs_inode_return_delegation(inode); + NFS_PROTO(inode)->return_delegation(inode); d_drop(dentry); error = NFS_PROTO(dir)->link(inode, dir, &dentry->d_name); @@ -1990,9 +1990,9 @@ static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry, } } - nfs_inode_return_delegation(old_inode); + NFS_PROTO(old_inode)->return_delegation(old_inode); if (new_inode != NULL) - nfs_inode_return_delegation(new_inode); + NFS_PROTO(new_inode)->return_delegation(new_inode); error = NFS_PROTO(old_dir)->rename(old_dir, &old_dentry->d_name, new_dir, &new_dentry->d_name); diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 0f0b928ef252..28c9ebbe78a6 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -430,7 +430,7 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr) * Return any delegations if we're going to change ACLs */ if ((attr->ia_valid & (ATTR_MODE|ATTR_UID|ATTR_GID)) != 0) - nfs_inode_return_delegation(inode); + NFS_PROTO(inode)->return_delegation(inode); error = NFS_PROTO(inode)->setattr(dentry, fattr, attr); if (error == 0) nfs_refresh_inode(inode, fattr); diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c index 08f832634ef9..4749a32e54be 100644 --- a/fs/nfs/nfs3proc.c +++ b/fs/nfs/nfs3proc.c @@ -882,6 +882,12 @@ static int nfs3_have_delegation(struct inode *inode, fmode_t flags) return 0; } +static int nfs3_return_delegation(struct inode *inode) +{ + nfs_wb_all(inode); + return 0; +} + const struct nfs_rpc_ops nfs_v3_clientops = { .version = 3, /* protocol version */ .dentry_ops = &nfs_dentry_operations, @@ -927,5 +933,6 @@ const struct nfs_rpc_ops nfs_v3_clientops = { .clear_acl_cache = nfs3_forget_cached_acls, .close_context = nfs_close_context, .have_delegation = nfs3_have_delegation, + .return_delegation = nfs3_return_delegation, .init_client = nfs_init_client, }; diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 86f428bb5e07..035f7a0829ec 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -295,7 +295,7 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc return 0; case -NFS4ERR_OPENMODE: if (inode && nfs4_have_delegation(inode, FMODE_READ)) { - nfs_inode_return_delegation(inode); + nfs4_inode_return_delegation(inode); exception->retry = 1; return 0; } @@ -1065,7 +1065,7 @@ static void nfs4_return_incompatible_delegation(struct inode *inode, fmode_t fmo return; } rcu_read_unlock(); - nfs_inode_return_delegation(inode); + nfs4_inode_return_delegation(inode); } static struct nfs4_state *nfs4_try_open_cached(struct nfs4_opendata *opendata) @@ -3870,7 +3870,7 @@ static int __nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t bufl i = buf_to_pages_noslab(buf, buflen, arg.acl_pages, &arg.acl_pgbase); if (i < 0) return i; - nfs_inode_return_delegation(inode); + nfs4_inode_return_delegation(inode); ret = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1); /* @@ -6805,6 +6805,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = { .close_context = nfs4_close_context, .open_context = nfs4_atomic_open, .have_delegation = nfs4_have_delegation, + .return_delegation = nfs4_inode_return_delegation, .init_client = nfs4_init_client, }; diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c index 4aed3ddf9bba..16632930abd2 100644 --- a/fs/nfs/proc.c +++ b/fs/nfs/proc.c @@ -739,6 +739,12 @@ static int nfs_have_delegation(struct inode *inode, fmode_t flags) return 0; } +static int nfs_return_delegation(struct inode *inode) +{ + nfs_wb_all(inode); + return 0; +} + const struct nfs_rpc_ops nfs_v2_clientops = { .version = 2, /* protocol version */ .dentry_ops = &nfs_dentry_operations, @@ -783,5 +789,6 @@ const struct nfs_rpc_ops nfs_v2_clientops = { .lock_check_bounds = nfs_lock_check_bounds, .close_context = nfs_close_context, .have_delegation = nfs_have_delegation, + .return_delegation = nfs_return_delegation, .init_client = nfs_init_client, }; diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c index 3210a03342f9..13cea637eff8 100644 --- a/fs/nfs/unlink.c +++ b/fs/nfs/unlink.c @@ -501,7 +501,7 @@ nfs_sillyrename(struct inode *dir, struct dentry *dentry) (unsigned long long)NFS_FILEID(dentry->d_inode)); /* Return delegation in anticipation of the rename */ - nfs_inode_return_delegation(dentry->d_inode); + NFS_PROTO(dentry->d_inode)->return_delegation(dentry->d_inode); sdentry = NULL; do { diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 8787f77c64b3..62235be07fb8 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -1423,6 +1423,7 @@ struct nfs_rpc_ops { int open_flags, struct iattr *iattr); int (*have_delegation)(struct inode *, fmode_t); + int (*return_delegation)(struct inode *); struct nfs_client * (*init_client) (struct nfs_client *, const struct rpc_timeout *, const char *, rpc_authflavor_t); -- cgit v1.2.3 From cdb7ecedec766861e7c4cc35a203518f92023bff Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Wed, 20 Jun 2012 15:53:45 -0400 Subject: NFS: Create a free_client rpc_op NFS v4 needs a way to shut down callbacks and sessions, but v2 and v3 don't. Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust --- fs/nfs/client.c | 18 +++++++++--------- fs/nfs/internal.h | 1 + fs/nfs/nfs3proc.c | 1 + fs/nfs/nfs4_fs.h | 2 ++ fs/nfs/nfs4proc.c | 1 + fs/nfs/proc.c | 1 + include/linux/nfs_xdr.h | 1 + 7 files changed, 16 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/fs/nfs/client.c b/fs/nfs/client.c index bf0f896284a8..82cb8a386a8f 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -242,6 +242,12 @@ static void nfs4_shutdown_client(struct nfs_client *clp) kfree(clp->cl_implid); } +void nfs4_free_client(struct nfs_client *clp) +{ + nfs4_shutdown_client(clp); + nfs_free_client(clp); +} + /* idr_remove_all is not needed as all id's are removed by nfs_put_client */ void nfs_cleanup_cb_ident_idr(struct net *net) { @@ -272,10 +278,6 @@ static void nfs4_destroy_server(struct nfs_server *server) } #else -static void nfs4_shutdown_client(struct nfs_client *clp) -{ -} - void nfs_cleanup_cb_ident_idr(struct net *net) { } @@ -293,12 +295,10 @@ static void pnfs_init_server(struct nfs_server *server) /* * Destroy a shared client record */ -static void nfs_free_client(struct nfs_client *clp) +void nfs_free_client(struct nfs_client *clp) { dprintk("--> nfs_free_client(%u)\n", clp->rpc_ops->version); - nfs4_shutdown_client(clp); - nfs_fscache_release_client_cookie(clp); /* -EIO all pending I/O */ @@ -335,7 +335,7 @@ void nfs_put_client(struct nfs_client *clp) BUG_ON(!list_empty(&clp->cl_superblocks)); - nfs_free_client(clp); + clp->rpc_ops->free_client(clp); } } EXPORT_SYMBOL_GPL(nfs_put_client); @@ -574,7 +574,7 @@ nfs_get_client(const struct nfs_client_initdata *cl_init, if (clp) { spin_unlock(&nn->nfs_client_lock); if (new) - nfs_free_client(new); + new->rpc_ops->free_client(new); return nfs_found_client(cl_init, clp); } if (new) { diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 18f99ef71343..93b732523342 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -151,6 +151,7 @@ extern void nfs_clients_init(struct net *net); extern void nfs_cleanup_cb_ident_idr(struct net *); extern void nfs_put_client(struct nfs_client *); +extern void nfs_free_client(struct nfs_client *); extern struct nfs_client *nfs4_find_client_ident(struct net *, int); extern struct nfs_client * nfs4_find_client_sessionid(struct net *, const struct sockaddr *, diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c index 4749a32e54be..4ccb34bf1732 100644 --- a/fs/nfs/nfs3proc.c +++ b/fs/nfs/nfs3proc.c @@ -935,4 +935,5 @@ const struct nfs_rpc_ops nfs_v3_clientops = { .have_delegation = nfs3_have_delegation, .return_delegation = nfs3_return_delegation, .init_client = nfs_init_client, + .free_client = nfs_free_client, }; diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index cc5900ac61b5..9889ee476e37 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -301,6 +301,8 @@ extern const u32 nfs4_pathconf_bitmap[2]; extern const u32 nfs4_fsinfo_bitmap[3]; extern const u32 nfs4_fs_locations_bitmap[2]; +void nfs4_free_client(struct nfs_client *); + /* nfs4renewd.c */ extern void nfs4_schedule_state_renewal(struct nfs_client *); extern void nfs4_renewd_prepare_shutdown(struct nfs_server *); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 035f7a0829ec..f301c53926b2 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -6807,6 +6807,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = { .have_delegation = nfs4_have_delegation, .return_delegation = nfs4_inode_return_delegation, .init_client = nfs4_init_client, + .free_client = nfs4_free_client, }; static const struct xattr_handler nfs4_xattr_nfs4_acl_handler = { diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c index 16632930abd2..53620bf10969 100644 --- a/fs/nfs/proc.c +++ b/fs/nfs/proc.c @@ -791,4 +791,5 @@ const struct nfs_rpc_ops nfs_v2_clientops = { .have_delegation = nfs_have_delegation, .return_delegation = nfs_return_delegation, .init_client = nfs_init_client, + .free_client = nfs_free_client, }; diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 62235be07fb8..e61dc7235d5d 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -1427,6 +1427,7 @@ struct nfs_rpc_ops { struct nfs_client * (*init_client) (struct nfs_client *, const struct rpc_timeout *, const char *, rpc_authflavor_t); + void (*free_client) (struct nfs_client *); }; /* -- cgit v1.2.3 From 6663ee7f8187708143255c057bc132bbc84c1894 Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Wed, 20 Jun 2012 15:53:46 -0400 Subject: NFS: Create an alloc_client rpc_op This gives NFS v4 a way to set up callbacks and sessions without v2 or v3 having to do them as well. Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust --- fs/nfs/client.c | 40 ++++++++++++++++++++++++++-------------- fs/nfs/internal.h | 1 + fs/nfs/nfs3proc.c | 1 + fs/nfs/nfs4_fs.h | 2 ++ fs/nfs/nfs4proc.c | 1 + fs/nfs/proc.c | 1 + include/linux/nfs_xdr.h | 2 ++ 7 files changed, 34 insertions(+), 14 deletions(-) (limited to 'include') diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 82cb8a386a8f..254719c4a575 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -147,7 +147,7 @@ struct nfs_client_initdata { * Since these are allocated/deallocated very rarely, we don't * bother putting them in a slab cache... */ -static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_init) +struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_init) { struct nfs_client *clp; struct rpc_cred *cred; @@ -177,18 +177,6 @@ static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_ clp->cl_proto = cl_init->proto; clp->cl_net = get_net(cl_init->net); -#ifdef CONFIG_NFS_V4 - err = nfs_get_cb_ident_idr(clp, cl_init->minorversion); - if (err) - goto error_cleanup; - - spin_lock_init(&clp->cl_lock); - INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state); - rpc_init_wait_queue(&clp->cl_rpcwaitq, "NFS client"); - clp->cl_state = 1 << NFS4CLNT_LEASE_EXPIRED; - clp->cl_minorversion = cl_init->minorversion; - clp->cl_mvops = nfs_v4_minor_ops[cl_init->minorversion]; -#endif cred = rpc_lookup_machine_cred("*"); if (!IS_ERR(cred)) clp->cl_machine_cred = cred; @@ -218,6 +206,30 @@ static void nfs4_shutdown_session(struct nfs_client *clp) } #endif /* CONFIG_NFS_V4_1 */ +struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *cl_init) +{ + int err; + struct nfs_client *clp = nfs_alloc_client(cl_init); + if (IS_ERR(clp)) + return clp; + + err = nfs_get_cb_ident_idr(clp, cl_init->minorversion); + if (err) + goto error; + + spin_lock_init(&clp->cl_lock); + INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state); + rpc_init_wait_queue(&clp->cl_rpcwaitq, "NFS client"); + clp->cl_state = 1 << NFS4CLNT_LEASE_EXPIRED; + clp->cl_minorversion = cl_init->minorversion; + clp->cl_mvops = nfs_v4_minor_ops[cl_init->minorversion]; + return clp; + +error: + kfree(clp); + return ERR_PTR(err); +} + /* * Destroy the NFS4 callback service */ @@ -588,7 +600,7 @@ nfs_get_client(const struct nfs_client_initdata *cl_init, spin_unlock(&nn->nfs_client_lock); - new = nfs_alloc_client(cl_init); + new = cl_init->rpc_ops->alloc_client(cl_init); } while (!IS_ERR(new)); dprintk("<-- nfs_get_client() Failed to find %s (%ld)\n", diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 93b732523342..633af813984d 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -148,6 +148,7 @@ extern void nfs_umount(const struct nfs_mount_request *info); /* client.c */ extern const struct rpc_program nfs_program; extern void nfs_clients_init(struct net *net); +extern struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *); extern void nfs_cleanup_cb_ident_idr(struct net *); extern void nfs_put_client(struct nfs_client *); diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c index 4ccb34bf1732..77c7aac228bb 100644 --- a/fs/nfs/nfs3proc.c +++ b/fs/nfs/nfs3proc.c @@ -934,6 +934,7 @@ const struct nfs_rpc_ops nfs_v3_clientops = { .close_context = nfs_close_context, .have_delegation = nfs3_have_delegation, .return_delegation = nfs3_return_delegation, + .alloc_client = nfs_alloc_client, .init_client = nfs_init_client, .free_client = nfs_free_client, }; diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 9889ee476e37..a0be2d1af04b 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -303,6 +303,8 @@ extern const u32 nfs4_fs_locations_bitmap[2]; void nfs4_free_client(struct nfs_client *); +struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *); + /* nfs4renewd.c */ extern void nfs4_schedule_state_renewal(struct nfs_client *); extern void nfs4_renewd_prepare_shutdown(struct nfs_server *); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index f301c53926b2..7f39e7ecde6c 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -6806,6 +6806,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = { .open_context = nfs4_atomic_open, .have_delegation = nfs4_have_delegation, .return_delegation = nfs4_inode_return_delegation, + .alloc_client = nfs4_alloc_client, .init_client = nfs4_init_client, .free_client = nfs4_free_client, }; diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c index 53620bf10969..99a002515dfe 100644 --- a/fs/nfs/proc.c +++ b/fs/nfs/proc.c @@ -790,6 +790,7 @@ const struct nfs_rpc_ops nfs_v2_clientops = { .close_context = nfs_close_context, .have_delegation = nfs_have_delegation, .return_delegation = nfs_return_delegation, + .alloc_client = nfs_alloc_client, .init_client = nfs_init_client, .free_client = nfs_free_client, }; diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index e61dc7235d5d..4d62b774ddaf 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -1353,6 +1353,7 @@ struct nfs_renamedata { struct nfs_access_entry; struct nfs_client; struct rpc_timeout; +struct nfs_client_initdata; /* * RPC procedure vector for NFSv2/NFSv3 demuxing @@ -1424,6 +1425,7 @@ struct nfs_rpc_ops { struct iattr *iattr); int (*have_delegation)(struct inode *, fmode_t); int (*return_delegation)(struct inode *); + struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *); struct nfs_client * (*init_client) (struct nfs_client *, const struct rpc_timeout *, const char *, rpc_authflavor_t); -- cgit v1.2.3 From 1abb50886afe8a126705c93dab2b50c1252a9c19 Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Wed, 20 Jun 2012 15:53:47 -0400 Subject: NFS: Create an read_pageio_init() function pNFS needs to select a read function based on the layout driver currently in use, so I let each NFS version decide how to best handle initializing reads. Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust --- fs/nfs/internal.h | 2 +- fs/nfs/nfs3proc.c | 1 + fs/nfs/nfs4proc.c | 1 + fs/nfs/pnfs.c | 11 +++++------ fs/nfs/pnfs.h | 6 +++--- fs/nfs/proc.c | 1 + fs/nfs/read.c | 16 +++------------- include/linux/nfs_xdr.h | 3 +++ 8 files changed, 18 insertions(+), 23 deletions(-) (limited to 'include') diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 633af813984d..b3121123b40d 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -306,7 +306,7 @@ extern int nfs_initiate_read(struct rpc_clnt *clnt, extern void nfs_read_prepare(struct rpc_task *task, void *calldata); extern int nfs_generic_pagein(struct nfs_pageio_descriptor *desc, struct nfs_pgio_header *hdr); -extern void nfs_pageio_init_read_mds(struct nfs_pageio_descriptor *pgio, +extern void nfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *inode, const struct nfs_pgio_completion_ops *compl_ops); extern void nfs_pageio_reset_read_mds(struct nfs_pageio_descriptor *pgio); diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c index 77c7aac228bb..9864d05432da 100644 --- a/fs/nfs/nfs3proc.c +++ b/fs/nfs/nfs3proc.c @@ -921,6 +921,7 @@ const struct nfs_rpc_ops nfs_v3_clientops = { .pathconf = nfs3_proc_pathconf, .decode_dirent = nfs3_decode_dirent, .read_setup = nfs3_proc_read_setup, + .read_pageio_init = nfs_pageio_init_read, .read_rpc_prepare = nfs3_proc_read_rpc_prepare, .read_done = nfs3_read_done, .write_setup = nfs3_proc_write_setup, diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 7f39e7ecde6c..f99cf71f4e36 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -6792,6 +6792,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = { .set_capabilities = nfs4_server_capabilities, .decode_dirent = nfs4_decode_dirent, .read_setup = nfs4_proc_read_setup, + .read_pageio_init = pnfs_pageio_init_read, .read_rpc_prepare = nfs4_proc_read_rpc_prepare, .read_done = nfs4_read_done, .write_setup = nfs4_proc_write_setup, diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index bbc49caa7a82..9c830603a16c 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1209,7 +1209,7 @@ pnfs_generic_pg_init_write(struct nfs_pageio_descriptor *pgio, struct nfs_page * } EXPORT_SYMBOL_GPL(pnfs_generic_pg_init_write); -bool +void pnfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *inode, const struct nfs_pgio_completion_ops *compl_ops) { @@ -1217,10 +1217,9 @@ pnfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *inode, struct pnfs_layoutdriver_type *ld = server->pnfs_curr_ld; if (ld == NULL) - return false; - nfs_pageio_init(pgio, inode, ld->pg_read_ops, compl_ops, - server->rsize, 0); - return true; + nfs_pageio_init_read(pgio, inode, compl_ops); + else + nfs_pageio_init(pgio, inode, ld->pg_read_ops, compl_ops, server->rsize, 0); } bool @@ -1427,7 +1426,7 @@ int pnfs_read_done_resend_to_mds(struct inode *inode, LIST_HEAD(failed); /* Resend all requests through the MDS */ - nfs_pageio_init_read_mds(&pgio, inode, compl_ops); + nfs_pageio_init_read(&pgio, inode, compl_ops); while (!list_empty(head)) { struct nfs_page *req = nfs_list_entry(head->next); diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 64f90d845f6a..80ee8919dd5e 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -178,7 +178,7 @@ extern int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp); void get_layout_hdr(struct pnfs_layout_hdr *lo); void put_lseg(struct pnfs_layout_segment *lseg); -bool pnfs_pageio_init_read(struct nfs_pageio_descriptor *, struct inode *, +void pnfs_pageio_init_read(struct nfs_pageio_descriptor *, struct inode *, const struct nfs_pgio_completion_ops *); bool pnfs_pageio_init_write(struct nfs_pageio_descriptor *, struct inode *, int, const struct nfs_pgio_completion_ops *); @@ -438,10 +438,10 @@ static inline void unset_pnfs_layoutdriver(struct nfs_server *s) { } -static inline bool pnfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *inode, +static inline void pnfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *inode, const struct nfs_pgio_completion_ops *compl_ops) { - return false; + nfs_pageio_init_read(pgio, inode, compl_ops); } static inline bool pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *inode, int ioflags, diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c index 99a002515dfe..6fea6e107bc3 100644 --- a/fs/nfs/proc.c +++ b/fs/nfs/proc.c @@ -778,6 +778,7 @@ const struct nfs_rpc_ops nfs_v2_clientops = { .pathconf = nfs_proc_pathconf, .decode_dirent = nfs2_decode_dirent, .read_setup = nfs_proc_read_setup, + .read_pageio_init = nfs_pageio_init_read, .read_rpc_prepare = nfs_proc_read_rpc_prepare, .read_done = nfs_read_done, .write_setup = nfs_proc_write_setup, diff --git a/fs/nfs/read.c b/fs/nfs/read.c index 86ced7836214..6267b873bbcb 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -20,8 +20,6 @@ #include #include -#include "pnfs.h" - #include "nfs4_fs.h" #include "internal.h" #include "iostat.h" @@ -108,7 +106,7 @@ int nfs_return_empty_page(struct page *page) return 0; } -void nfs_pageio_init_read_mds(struct nfs_pageio_descriptor *pgio, +void nfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *inode, const struct nfs_pgio_completion_ops *compl_ops) { @@ -123,14 +121,6 @@ void nfs_pageio_reset_read_mds(struct nfs_pageio_descriptor *pgio) } EXPORT_SYMBOL_GPL(nfs_pageio_reset_read_mds); -void nfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, - struct inode *inode, - const struct nfs_pgio_completion_ops *compl_ops) -{ - if (!pnfs_pageio_init_read(pgio, inode, compl_ops)) - nfs_pageio_init_read_mds(pgio, inode, compl_ops); -} - int nfs_readpage_async(struct nfs_open_context *ctx, struct inode *inode, struct page *page) { @@ -149,7 +139,7 @@ int nfs_readpage_async(struct nfs_open_context *ctx, struct inode *inode, if (len < PAGE_CACHE_SIZE) zero_user_segment(page, len, PAGE_CACHE_SIZE); - nfs_pageio_init_read(&pgio, inode, &nfs_async_read_completion_ops); + NFS_PROTO(inode)->read_pageio_init(&pgio, inode, &nfs_async_read_completion_ops); nfs_pageio_add_request(&pgio, new); nfs_pageio_complete(&pgio); NFS_I(inode)->read_io += pgio.pg_bytes_written; @@ -652,7 +642,7 @@ int nfs_readpages(struct file *filp, struct address_space *mapping, if (ret == 0) goto read_complete; /* all pages were read */ - nfs_pageio_init_read(&pgio, inode, &nfs_async_read_completion_ops); + NFS_PROTO(inode)->read_pageio_init(&pgio, inode, &nfs_async_read_completion_ops); ret = read_cache_pages(mapping, pages, readpage_async_filler, &desc); diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 4d62b774ddaf..e00b8b3c334e 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -1354,6 +1354,7 @@ struct nfs_access_entry; struct nfs_client; struct rpc_timeout; struct nfs_client_initdata; +struct nfs_pageio_descriptor; /* * RPC procedure vector for NFSv2/NFSv3 demuxing @@ -1407,6 +1408,8 @@ struct nfs_rpc_ops { int (*set_capabilities)(struct nfs_server *, struct nfs_fh *); int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int); void (*read_setup) (struct nfs_read_data *, struct rpc_message *); + void (*read_pageio_init)(struct nfs_pageio_descriptor *, struct inode *, + const struct nfs_pgio_completion_ops *); void (*read_rpc_prepare)(struct rpc_task *, struct nfs_read_data *); int (*read_done) (struct rpc_task *, struct nfs_read_data *); void (*write_setup) (struct nfs_write_data *, struct rpc_message *); -- cgit v1.2.3 From 57208fa7e51ca16cd68de8e8bf482f16b06d3ea1 Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Wed, 20 Jun 2012 15:53:48 -0400 Subject: NFS: Create an write_pageio_init() function pNFS needs to select a write function based on the layout driver currently in use, so I let each NFS version decide how to best handle initializing writes. Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust --- fs/nfs/internal.h | 2 +- fs/nfs/nfs3proc.c | 1 + fs/nfs/nfs4proc.c | 1 + fs/nfs/pnfs.c | 11 +++++------ fs/nfs/pnfs.h | 6 +++--- fs/nfs/proc.c | 1 + fs/nfs/write.c | 18 ++++++------------ include/linux/nfs_xdr.h | 2 ++ 8 files changed, 20 insertions(+), 22 deletions(-) (limited to 'include') diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index b3121123b40d..7edc172c371e 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -320,7 +320,7 @@ extern struct nfs_write_header *nfs_writehdr_alloc(void); extern void nfs_writehdr_free(struct nfs_pgio_header *hdr); extern int nfs_generic_flush(struct nfs_pageio_descriptor *desc, struct nfs_pgio_header *hdr); -extern void nfs_pageio_init_write_mds(struct nfs_pageio_descriptor *pgio, +extern void nfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *inode, int ioflags, const struct nfs_pgio_completion_ops *compl_ops); extern void nfs_pageio_reset_write_mds(struct nfs_pageio_descriptor *pgio); diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c index 9864d05432da..f3344f7f46a9 100644 --- a/fs/nfs/nfs3proc.c +++ b/fs/nfs/nfs3proc.c @@ -925,6 +925,7 @@ const struct nfs_rpc_ops nfs_v3_clientops = { .read_rpc_prepare = nfs3_proc_read_rpc_prepare, .read_done = nfs3_read_done, .write_setup = nfs3_proc_write_setup, + .write_pageio_init = nfs_pageio_init_write, .write_rpc_prepare = nfs3_proc_write_rpc_prepare, .write_done = nfs3_write_done, .commit_setup = nfs3_proc_commit_setup, diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index f99cf71f4e36..7d387cb8ceb5 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -6796,6 +6796,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = { .read_rpc_prepare = nfs4_proc_read_rpc_prepare, .read_done = nfs4_read_done, .write_setup = nfs4_proc_write_setup, + .write_pageio_init = pnfs_pageio_init_write, .write_rpc_prepare = nfs4_proc_write_rpc_prepare, .write_done = nfs4_write_done, .commit_setup = nfs4_proc_commit_setup, diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 9c830603a16c..2617831afd39 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1222,7 +1222,7 @@ pnfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *inode, nfs_pageio_init(pgio, inode, ld->pg_read_ops, compl_ops, server->rsize, 0); } -bool +void pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *inode, int ioflags, const struct nfs_pgio_completion_ops *compl_ops) @@ -1231,10 +1231,9 @@ pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *inode, struct pnfs_layoutdriver_type *ld = server->pnfs_curr_ld; if (ld == NULL) - return false; - nfs_pageio_init(pgio, inode, ld->pg_write_ops, compl_ops, - server->wsize, ioflags); - return true; + nfs_pageio_init_write(pgio, inode, ioflags, compl_ops); + else + nfs_pageio_init(pgio, inode, ld->pg_write_ops, compl_ops, server->wsize, ioflags); } bool @@ -1271,7 +1270,7 @@ int pnfs_write_done_resend_to_mds(struct inode *inode, LIST_HEAD(failed); /* Resend all requests through the MDS */ - nfs_pageio_init_write_mds(&pgio, inode, FLUSH_STABLE, compl_ops); + nfs_pageio_init_write(&pgio, inode, FLUSH_STABLE, compl_ops); while (!list_empty(head)) { struct nfs_page *req = nfs_list_entry(head->next); diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 80ee8919dd5e..592beb02c955 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -180,7 +180,7 @@ void put_lseg(struct pnfs_layout_segment *lseg); void pnfs_pageio_init_read(struct nfs_pageio_descriptor *, struct inode *, const struct nfs_pgio_completion_ops *); -bool pnfs_pageio_init_write(struct nfs_pageio_descriptor *, struct inode *, +void pnfs_pageio_init_write(struct nfs_pageio_descriptor *, struct inode *, int, const struct nfs_pgio_completion_ops *); void set_pnfs_layoutdriver(struct nfs_server *, const struct nfs_fh *, u32); @@ -444,10 +444,10 @@ static inline void pnfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, str nfs_pageio_init_read(pgio, inode, compl_ops); } -static inline bool pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *inode, int ioflags, +static inline void pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *inode, int ioflags, const struct nfs_pgio_completion_ops *compl_ops) { - return false; + nfs_pageio_init_write(pgio, inode, ioflags, compl_ops); } static inline int diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c index 6fea6e107bc3..cf6499742b10 100644 --- a/fs/nfs/proc.c +++ b/fs/nfs/proc.c @@ -782,6 +782,7 @@ const struct nfs_rpc_ops nfs_v2_clientops = { .read_rpc_prepare = nfs_proc_read_rpc_prepare, .read_done = nfs_read_done, .write_setup = nfs_proc_write_setup, + .write_pageio_init = nfs_pageio_init_write, .write_rpc_prepare = nfs_proc_write_rpc_prepare, .write_done = nfs_write_done, .commit_setup = nfs_proc_commit_setup, diff --git a/fs/nfs/write.c b/fs/nfs/write.c index f163355b9618..c11fb0025f0b 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -336,8 +336,10 @@ static int nfs_writepage_locked(struct page *page, struct writeback_control *wbc struct nfs_pageio_descriptor pgio; int err; - nfs_pageio_init_write(&pgio, page->mapping->host, wb_priority(wbc), - &nfs_async_write_completion_ops); + NFS_PROTO(page->mapping->host)->write_pageio_init(&pgio, + page->mapping->host, + wb_priority(wbc), + &nfs_async_write_completion_ops); err = nfs_do_writepage(page, wbc, &pgio); nfs_pageio_complete(&pgio); if (err < 0) @@ -380,8 +382,7 @@ int nfs_writepages(struct address_space *mapping, struct writeback_control *wbc) nfs_inc_stats(inode, NFSIOS_VFSWRITEPAGES); - nfs_pageio_init_write(&pgio, inode, wb_priority(wbc), - &nfs_async_write_completion_ops); + NFS_PROTO(inode)->write_pageio_init(&pgio, inode, wb_priority(wbc), &nfs_async_write_completion_ops); err = write_cache_pages(mapping, wbc, nfs_writepages_callback, &pgio); nfs_pageio_complete(&pgio); @@ -1202,7 +1203,7 @@ static const struct nfs_pageio_ops nfs_pageio_write_ops = { .pg_doio = nfs_generic_pg_writepages, }; -void nfs_pageio_init_write_mds(struct nfs_pageio_descriptor *pgio, +void nfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *inode, int ioflags, const struct nfs_pgio_completion_ops *compl_ops) { @@ -1217,13 +1218,6 @@ void nfs_pageio_reset_write_mds(struct nfs_pageio_descriptor *pgio) } EXPORT_SYMBOL_GPL(nfs_pageio_reset_write_mds); -void nfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, - struct inode *inode, int ioflags, - const struct nfs_pgio_completion_ops *compl_ops) -{ - if (!pnfs_pageio_init_write(pgio, inode, ioflags, compl_ops)) - nfs_pageio_init_write_mds(pgio, inode, ioflags, compl_ops); -} void nfs_write_prepare(struct rpc_task *task, void *calldata) { diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index e00b8b3c334e..8ed8ec628290 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -1413,6 +1413,8 @@ struct nfs_rpc_ops { void (*read_rpc_prepare)(struct rpc_task *, struct nfs_read_data *); int (*read_done) (struct rpc_task *, struct nfs_read_data *); void (*write_setup) (struct nfs_write_data *, struct rpc_message *); + void (*write_pageio_init)(struct nfs_pageio_descriptor *, struct inode *, int, + const struct nfs_pgio_completion_ops *); void (*write_rpc_prepare)(struct rpc_task *, struct nfs_write_data *); int (*write_done) (struct rpc_task *, struct nfs_write_data *); void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *); -- cgit v1.2.3 From 6a1a1e34dc55f17e7bd260809207442dbb7a0296 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Wed, 11 Jul 2012 16:31:08 -0400 Subject: SUNRPC: Add rpcauth_list_flavors() The gss_mech_list_pseudoflavors() function provides a list of currently registered GSS pseudoflavors. This list does not include any non-GSS flavors that have been registered with the RPC client. nfs4_find_root_sec() currently adds these extra flavors by hand. Instead, nfs4_find_root_sec() should be looking at the set of flavors that have been explicitly registered via rpcauth_register(). And, other areas of code will soon need the same kind of list that contains all flavors the kernel currently knows about (see below). Rather than cloning the open-coded logic in nfs4_find_root_sec() to those new places, introduce a generic RPC function that generates a full list of registered auth flavors and pseudoflavors. A new rpc_authops method is added that lists a flavor's pseudoflavors, if it has any. I encountered an interesting module loader loop when I tried to get the RPC client to invoke gss_mech_list_pseudoflavors() by name. This patch is a pre-requisite for server trunking discovery, and a pre-requisite for fixing up the in-kernel mount client to do better automatic security flavor selection. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust --- fs/nfs/nfs4proc.c | 11 ++++--- include/linux/sunrpc/auth.h | 2 ++ include/linux/sunrpc/gss_api.h | 3 +- net/sunrpc/auth.c | 54 +++++++++++++++++++++++++++++++++++ net/sunrpc/auth_gss/auth_gss.c | 1 + net/sunrpc/auth_gss/gss_mech_switch.c | 18 +++++++++--- 6 files changed, 80 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 31369e9b5b04..80bb5055d0b3 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -43,7 +43,6 @@ #include #include #include -#include #include #include #include @@ -2412,11 +2411,15 @@ static int nfs4_find_root_sec(struct nfs_server *server, struct nfs_fh *fhandle, int i, len, status = 0; rpc_authflavor_t flav_array[NFS_MAX_SECFLAVORS]; - len = gss_mech_list_pseudoflavors(&flav_array[0]); - flav_array[len] = RPC_AUTH_NULL; - len += 1; + len = rpcauth_list_flavors(flav_array, ARRAY_SIZE(flav_array)); + BUG_ON(len < 0); for (i = 0; i < len; i++) { + /* AUTH_UNIX is the default flavor if none was specified, + * thus has already been tried. */ + if (flav_array[i] == RPC_AUTH_UNIX) + continue; + status = nfs4_lookup_root_sec(server, fhandle, info, flav_array[i]); if (status == -NFS4ERR_WRONGSEC || status == -EACCES) continue; diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h index 492a36d72829..f25ba922baaf 100644 --- a/include/linux/sunrpc/auth.h +++ b/include/linux/sunrpc/auth.h @@ -101,6 +101,7 @@ struct rpc_authops { struct rpc_cred * (*crcreate)(struct rpc_auth*, struct auth_cred *, int); int (*pipes_create)(struct rpc_auth *); void (*pipes_destroy)(struct rpc_auth *); + int (*list_pseudoflavors)(rpc_authflavor_t *, int); }; struct rpc_credops { @@ -135,6 +136,7 @@ int rpcauth_register(const struct rpc_authops *); int rpcauth_unregister(const struct rpc_authops *); struct rpc_auth * rpcauth_create(rpc_authflavor_t, struct rpc_clnt *); void rpcauth_release(struct rpc_auth *); +int rpcauth_list_flavors(rpc_authflavor_t *, int); struct rpc_cred * rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *, int); void rpcauth_init_cred(struct rpc_cred *, const struct auth_cred *, struct rpc_auth *, const struct rpc_credops *); struct rpc_cred * rpcauth_lookupcred(struct rpc_auth *, int); diff --git a/include/linux/sunrpc/gss_api.h b/include/linux/sunrpc/gss_api.h index 332da61cf8b7..a19e2547ae6a 100644 --- a/include/linux/sunrpc/gss_api.h +++ b/include/linux/sunrpc/gss_api.h @@ -14,6 +14,7 @@ #ifdef __KERNEL__ #include +#include #include /* The mechanism-independent gss-api context: */ @@ -127,7 +128,7 @@ struct gss_api_mech *gss_mech_get_by_name(const char *); struct gss_api_mech *gss_mech_get_by_pseudoflavor(u32); /* Fill in an array with a list of supported pseudoflavors */ -int gss_mech_list_pseudoflavors(u32 *); +int gss_mech_list_pseudoflavors(rpc_authflavor_t *, int); /* Just increments the mechanism's reference count and returns its input: */ struct gss_api_mech * gss_mech_get(struct gss_api_mech *); diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c index 727e506cacda..b5c067bccc45 100644 --- a/net/sunrpc/auth.c +++ b/net/sunrpc/auth.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #ifdef RPC_DEBUG @@ -122,6 +123,59 @@ rpcauth_unregister(const struct rpc_authops *ops) } EXPORT_SYMBOL_GPL(rpcauth_unregister); +/** + * rpcauth_list_flavors - discover registered flavors and pseudoflavors + * @array: array to fill in + * @size: size of "array" + * + * Returns the number of array items filled in, or a negative errno. + * + * The returned array is not sorted by any policy. Callers should not + * rely on the order of the items in the returned array. + */ +int +rpcauth_list_flavors(rpc_authflavor_t *array, int size) +{ + rpc_authflavor_t flavor; + int result = 0; + + spin_lock(&rpc_authflavor_lock); + for (flavor = 0; flavor < RPC_AUTH_MAXFLAVOR; flavor++) { + const struct rpc_authops *ops = auth_flavors[flavor]; + rpc_authflavor_t pseudos[4]; + int i, len; + + if (result >= size) { + result = -ENOMEM; + break; + } + + if (ops == NULL) + continue; + if (ops->list_pseudoflavors == NULL) { + array[result++] = ops->au_flavor; + continue; + } + len = ops->list_pseudoflavors(pseudos, ARRAY_SIZE(pseudos)); + if (len < 0) { + result = len; + break; + } + for (i = 0; i < len; i++) { + if (result >= size) { + result = -ENOMEM; + break; + } + array[result++] = pseudos[i]; + } + } + spin_unlock(&rpc_authflavor_lock); + + dprintk("RPC: %s returns %d\n", __func__, result); + return result; +} +EXPORT_SYMBOL_GPL(rpcauth_list_flavors); + struct rpc_auth * rpcauth_create(rpc_authflavor_t pseudoflavor, struct rpc_clnt *clnt) { diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c index d3ad81f8da5b..34c522021004 100644 --- a/net/sunrpc/auth_gss/auth_gss.c +++ b/net/sunrpc/auth_gss/auth_gss.c @@ -1619,6 +1619,7 @@ static const struct rpc_authops authgss_ops = { .crcreate = gss_create_cred, .pipes_create = gss_pipes_dentries_create, .pipes_destroy = gss_pipes_dentries_destroy, + .list_pseudoflavors = gss_mech_list_pseudoflavors, }; static const struct rpc_credops gss_credops = { diff --git a/net/sunrpc/auth_gss/gss_mech_switch.c b/net/sunrpc/auth_gss/gss_mech_switch.c index 782bfe1b6465..6ac5dfcd2928 100644 --- a/net/sunrpc/auth_gss/gss_mech_switch.c +++ b/net/sunrpc/auth_gss/gss_mech_switch.c @@ -239,14 +239,26 @@ gss_mech_get_by_pseudoflavor(u32 pseudoflavor) EXPORT_SYMBOL_GPL(gss_mech_get_by_pseudoflavor); -int gss_mech_list_pseudoflavors(rpc_authflavor_t *array_ptr) +/** + * gss_mech_list_pseudoflavors - Discover registered GSS pseudoflavors + * @array: array to fill in + * @size: size of "array" + * + * Returns the number of array items filled in, or a negative errno. + * + * The returned array is not sorted by any policy. Callers should not + * rely on the order of the items in the returned array. + */ +int gss_mech_list_pseudoflavors(rpc_authflavor_t *array_ptr, int size) { struct gss_api_mech *pos = NULL; int j, i = 0; spin_lock(®istered_mechs_lock); list_for_each_entry(pos, ®istered_mechs, gm_list) { - for (j=0; j < pos->gm_pf_num; j++) { + for (j = 0; j < pos->gm_pf_num; j++) { + if (i >= size) + return -ENOMEM; array_ptr[i++] = pos->gm_pfs[j].pseudoflavor; } } @@ -254,8 +266,6 @@ int gss_mech_list_pseudoflavors(rpc_authflavor_t *array_ptr) return i; } -EXPORT_SYMBOL_GPL(gss_mech_list_pseudoflavors); - u32 gss_svc_to_pseudoflavor(struct gss_api_mech *gm, u32 service) { -- cgit v1.2.3 From de734831224e74fcaf8917386e33644c4243db95 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Wed, 11 Jul 2012 16:30:50 -0400 Subject: NFS: Treat NFS4ERR_CLID_INUSE as a fatal error For NFSv4 minor version 0, currently the cl_id_uniquifier allows the Linux client to generate a unique nfs_client_id4 string whenever a server replies with NFS4ERR_CLID_INUSE. This implementation seems to be based on a flawed reading of RFC 3530. NFS4ERR_CLID_INUSE actually means that the client has presented this nfs_client_id4 string with a different principal at some time in the past, and that lease is still in use on the server. For a Linux client this might be rather difficult to achieve: the authentication flavor is named right in the nfs_client_id4.id string. If we change flavors, we change strings automatically. So, practically speaking, NFS4ERR_CLID_INUSE means there is some other client using our string. There is not much that can be done to recover automatically. Let's make it a permanent error. Remove the recovery logic in nfs4_proc_setclientid(), and remove the cl_id_uniquifier field from the nfs_client data structure. And, remove the authentication flavor from the nfs_client_id4 string. Keeping the authentication flavor in the nfs_client_id4.id string means that we could have a separate lease for each authentication flavor used by mounts on the client. But we want just one lease for all the mounts on this client. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust --- fs/nfs/nfs4proc.c | 47 ++++++++++++++++------------------------------- fs/nfs/nfs4state.c | 7 ++++++- include/linux/nfs_fs_sb.h | 3 +-- 3 files changed, 23 insertions(+), 34 deletions(-) (limited to 'include') diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 74dcd85f0a1d..1148081e1a53 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -4029,42 +4029,28 @@ int nfs4_proc_setclientid(struct nfs_client *clp, u32 program, .rpc_resp = res, .rpc_cred = cred, }; - int loop = 0; - int status; + /* nfs_client_id4 */ nfs4_init_boot_verifier(clp, &sc_verifier); - - for(;;) { - rcu_read_lock(); - setclientid.sc_name_len = scnprintf(setclientid.sc_name, - sizeof(setclientid.sc_name), "%s/%s %s %s %u", - clp->cl_ipaddr, - rpc_peeraddr2str(clp->cl_rpcclient, - RPC_DISPLAY_ADDR), - rpc_peeraddr2str(clp->cl_rpcclient, - RPC_DISPLAY_PROTO), - clp->cl_rpcclient->cl_auth->au_ops->au_name, - clp->cl_id_uniquifier); - setclientid.sc_netid_len = scnprintf(setclientid.sc_netid, + rcu_read_lock(); + setclientid.sc_name_len = scnprintf(setclientid.sc_name, + sizeof(setclientid.sc_name), "%s/%s %s", + clp->cl_ipaddr, + rpc_peeraddr2str(clp->cl_rpcclient, + RPC_DISPLAY_ADDR), + rpc_peeraddr2str(clp->cl_rpcclient, + RPC_DISPLAY_PROTO)); + /* cb_client4 */ + setclientid.sc_netid_len = scnprintf(setclientid.sc_netid, sizeof(setclientid.sc_netid), rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_NETID)); - setclientid.sc_uaddr_len = scnprintf(setclientid.sc_uaddr, + rcu_read_unlock(); + setclientid.sc_uaddr_len = scnprintf(setclientid.sc_uaddr, sizeof(setclientid.sc_uaddr), "%s.%u.%u", clp->cl_ipaddr, port >> 8, port & 255); - rcu_read_unlock(); - status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT); - if (status != -NFS4ERR_CLID_INUSE) - break; - if (loop != 0) { - ++clp->cl_id_uniquifier; - break; - } - ++loop; - ssleep(clp->cl_lease_time / HZ + 1); - } - return status; + return rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT); } int nfs4_proc_setclientid_confirm(struct nfs_client *clp, @@ -5262,10 +5248,9 @@ int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred) nfs4_init_boot_verifier(clp, &verifier); args.id_len = scnprintf(args.id, sizeof(args.id), - "%s/%s/%u", + "%s/%s", clp->cl_ipaddr, - clp->cl_rpcclient->cl_nodename, - clp->cl_rpcclient->cl_auth->au_flavor); + clp->cl_rpcclient->cl_nodename); res.server_owner = kzalloc(sizeof(struct nfs41_server_owner), GFP_NOFS); diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 1cfc4603fd9a..81eabcdad0e5 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -1606,10 +1606,15 @@ static int nfs4_handle_reclaim_lease_error(struct nfs_client *clp, int status) return -ESERVERFAULT; /* Lease confirmation error: retry after purging the lease */ ssleep(1); - case -NFS4ERR_CLID_INUSE: case -NFS4ERR_STALE_CLIENTID: clear_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state); break; + case -NFS4ERR_CLID_INUSE: + pr_err("NFS: Server %s reports our clientid is in use\n", + clp->cl_hostname); + nfs_mark_client_ready(clp, -EPERM); + clear_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state); + return -EPERM; case -EACCES: if (clp->cl_machine_cred == NULL) return -EACCES; diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index f58325a1d8fb..65327652c61a 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -69,10 +69,9 @@ struct nfs_client { struct idmap * cl_idmap; /* Our own IP address, as a null-terminated string. - * This is used to generate the clientid, and the callback address. + * This is used to generate the mv0 callback address. */ char cl_ipaddr[48]; - unsigned char cl_id_uniquifier; u32 cl_cb_ident; /* v4.0 callback identifier */ const struct nfs4_minor_version_ops *cl_mvops; -- cgit v1.2.3 From 597d92891b8859b4b4949fd08e25e60fc80ddaaf Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Mon, 16 Jul 2012 16:39:10 -0400 Subject: NFS: Split out NFS v2 inode operations This patch moves the NFS v2 file and directory inode functions into files that are only compiled whet CONFIG_NFS_V2 is enabled. Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust --- fs/nfs/dir.c | 43 +++++++++---------------------------------- fs/nfs/file.c | 6 ------ fs/nfs/internal.h | 9 +++++++++ fs/nfs/proc.c | 21 +++++++++++++++++++++ include/linux/nfs_fs.h | 2 -- 5 files changed, 39 insertions(+), 42 deletions(-) (limited to 'include') diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index b7136853ca9c..9ae329d62340 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -46,16 +46,6 @@ static int nfs_opendir(struct inode *, struct file *); static int nfs_closedir(struct inode *, struct file *); static int nfs_readdir(struct file *, void *, filldir_t); -static struct dentry *nfs_lookup(struct inode *, struct dentry *, unsigned int); -static int nfs_create(struct inode *, struct dentry *, umode_t, bool); -static int nfs_mkdir(struct inode *, struct dentry *, umode_t); -static int nfs_rmdir(struct inode *, struct dentry *); -static int nfs_unlink(struct inode *, struct dentry *); -static int nfs_symlink(struct inode *, struct dentry *, const char *); -static int nfs_link(struct dentry *, struct inode *, struct dentry *); -static int nfs_mknod(struct inode *, struct dentry *, umode_t, dev_t); -static int nfs_rename(struct inode *, struct dentry *, - struct inode *, struct dentry *); static int nfs_fsync_dir(struct file *, loff_t, loff_t, int); static loff_t nfs_llseek_dir(struct file *, loff_t, int); static void nfs_readdir_clear_array(struct page*); @@ -69,21 +59,6 @@ const struct file_operations nfs_dir_operations = { .fsync = nfs_fsync_dir, }; -const struct inode_operations nfs_dir_inode_operations = { - .create = nfs_create, - .lookup = nfs_lookup, - .link = nfs_link, - .unlink = nfs_unlink, - .symlink = nfs_symlink, - .mkdir = nfs_mkdir, - .rmdir = nfs_rmdir, - .mknod = nfs_mknod, - .rename = nfs_rename, - .permission = nfs_permission, - .getattr = nfs_getattr, - .setattr = nfs_setattr, -}; - const struct address_space_operations nfs_dir_aops = { .freepage = nfs_readdir_clear_array, }; @@ -1270,7 +1245,7 @@ const struct dentry_operations nfs_dentry_operations = { .d_release = nfs_d_release, }; -static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, unsigned int flags) +struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, unsigned int flags) { struct dentry *res; struct dentry *parent; @@ -1588,7 +1563,7 @@ out_error: * that the operation succeeded on the server, but an error in the * reply path made it appear to have failed. */ -static int nfs_create(struct inode *dir, struct dentry *dentry, +int nfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool excl) { struct iattr attr; @@ -1613,7 +1588,7 @@ out_err: /* * See comments for nfs_proc_create regarding failed operations. */ -static int +int nfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rdev) { struct iattr attr; @@ -1640,7 +1615,7 @@ out_err: /* * See comments for nfs_proc_create regarding failed operations. */ -static int nfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) +int nfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) { struct iattr attr; int error; @@ -1666,7 +1641,7 @@ static void nfs_dentry_handle_enoent(struct dentry *dentry) d_delete(dentry); } -static int nfs_rmdir(struct inode *dir, struct dentry *dentry) +int nfs_rmdir(struct inode *dir, struct dentry *dentry) { int error; @@ -1725,7 +1700,7 @@ out: * * If sillyrename() returns 0, we do nothing, otherwise we unlink. */ -static int nfs_unlink(struct inode *dir, struct dentry *dentry) +int nfs_unlink(struct inode *dir, struct dentry *dentry) { int error; int need_rehash = 0; @@ -1769,7 +1744,7 @@ static int nfs_unlink(struct inode *dir, struct dentry *dentry) * now have a new file handle and can instantiate an in-core NFS inode * and move the raw page into its mapping. */ -static int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname) +int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname) { struct pagevec lru_pvec; struct page *page; @@ -1824,7 +1799,7 @@ static int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *sym return 0; } -static int +int nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry) { struct inode *inode = old_dentry->d_inode; @@ -1869,7 +1844,7 @@ nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry) * If these conditions are met, we can drop the dentries before doing * the rename. */ -static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry, +int nfs_rename(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry) { struct inode *old_inode = old_dentry->d_inode; diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 57a22a1533e2..7da8745e22ac 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -41,12 +41,6 @@ static const struct vm_operations_struct nfs_file_vm_ops; -const struct inode_operations nfs_file_inode_operations = { - .permission = nfs_permission, - .getattr = nfs_getattr, - .setattr = nfs_setattr, -}; - #ifdef CONFIG_NFS_V3 const struct inode_operations nfs3_file_inode_operations = { .permission = nfs_permission, diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 7edc172c371e..35a8ffec69f6 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -247,6 +247,15 @@ extern struct nfs_client *nfs_init_client(struct nfs_client *clp, /* dir.c */ extern int nfs_access_cache_shrinker(struct shrinker *shrink, struct shrink_control *sc); +struct dentry *nfs_lookup(struct inode *, struct dentry *, unsigned int); +int nfs_create(struct inode *, struct dentry *, umode_t, bool); +int nfs_mkdir(struct inode *, struct dentry *, umode_t); +int nfs_rmdir(struct inode *, struct dentry *); +int nfs_unlink(struct inode *, struct dentry *); +int nfs_symlink(struct inode *, struct dentry *, const char *); +int nfs_link(struct dentry *, struct inode *, struct dentry *); +int nfs_mknod(struct inode *, struct dentry *, umode_t, dev_t); +int nfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *); /* inode.c */ extern struct workqueue_struct *nfsiod_workqueue; diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c index c5ed1c0a8ab7..4d3356af3309 100644 --- a/fs/nfs/proc.c +++ b/fs/nfs/proc.c @@ -745,6 +745,27 @@ static int nfs_return_delegation(struct inode *inode) return 0; } +static const struct inode_operations nfs_dir_inode_operations = { + .create = nfs_create, + .lookup = nfs_lookup, + .link = nfs_link, + .unlink = nfs_unlink, + .symlink = nfs_symlink, + .mkdir = nfs_mkdir, + .rmdir = nfs_rmdir, + .mknod = nfs_mknod, + .rename = nfs_rename, + .permission = nfs_permission, + .getattr = nfs_getattr, + .setattr = nfs_setattr, +}; + +static const struct inode_operations nfs_file_inode_operations = { + .permission = nfs_permission, + .getattr = nfs_getattr, + .setattr = nfs_setattr, +}; + const struct nfs_rpc_ops nfs_v2_clientops = { .version = 2, /* protocol version */ .dentry_ops = &nfs_dentry_operations, diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index b23cfc120edb..6c38bc9c0081 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -427,7 +427,6 @@ extern __be32 root_nfs_parse_addr(char *name); /*__init*/ /* * linux/fs/nfs/file.c */ -extern const struct inode_operations nfs_file_inode_operations; #ifdef CONFIG_NFS_V3 extern const struct inode_operations nfs3_file_inode_operations; #endif /* CONFIG_NFS_V3 */ @@ -485,7 +484,6 @@ extern ssize_t nfs_file_direct_write(struct kiocb *iocb, /* * linux/fs/nfs/dir.c */ -extern const struct inode_operations nfs_dir_inode_operations; #ifdef CONFIG_NFS_V3 extern const struct inode_operations nfs3_dir_inode_operations; #endif /* CONFIG_NFS_V3 */ -- cgit v1.2.3 From ab96291ea16b6b9c76bfac35ccbb26a15ecb01ce Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Mon, 16 Jul 2012 16:39:11 -0400 Subject: NFS: Split out NFS v3 inode operations This patch moves the NFS v3 file and directory inode functions into files that are only compiled whet CONFIG_NFS_V3 is enabled. Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust --- fs/nfs/dir.c | 21 --------------------- fs/nfs/file.c | 12 ------------ fs/nfs/nfs3proc.c | 29 +++++++++++++++++++++++++++++ include/linux/nfs_fs.h | 6 ------ 4 files changed, 29 insertions(+), 39 deletions(-) (limited to 'include') diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 9ae329d62340..e75f2aaafadf 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -63,27 +63,6 @@ const struct address_space_operations nfs_dir_aops = { .freepage = nfs_readdir_clear_array, }; -#ifdef CONFIG_NFS_V3 -const struct inode_operations nfs3_dir_inode_operations = { - .create = nfs_create, - .lookup = nfs_lookup, - .link = nfs_link, - .unlink = nfs_unlink, - .symlink = nfs_symlink, - .mkdir = nfs_mkdir, - .rmdir = nfs_rmdir, - .mknod = nfs_mknod, - .rename = nfs_rename, - .permission = nfs_permission, - .getattr = nfs_getattr, - .setattr = nfs_setattr, - .listxattr = nfs3_listxattr, - .getxattr = nfs3_getxattr, - .setxattr = nfs3_setxattr, - .removexattr = nfs3_removexattr, -}; -#endif /* CONFIG_NFS_V3 */ - #ifdef CONFIG_NFS_V4 static int nfs_atomic_open(struct inode *, struct dentry *, diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 7da8745e22ac..76239178e959 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -41,18 +41,6 @@ static const struct vm_operations_struct nfs_file_vm_ops; -#ifdef CONFIG_NFS_V3 -const struct inode_operations nfs3_file_inode_operations = { - .permission = nfs_permission, - .getattr = nfs_getattr, - .setattr = nfs_setattr, - .listxattr = nfs3_listxattr, - .getxattr = nfs3_getxattr, - .setxattr = nfs3_setxattr, - .removexattr = nfs3_removexattr, -}; -#endif /* CONFIG_NFS_v3 */ - /* Hack for future NFS swap support */ #ifndef IS_SWAPFILE # define IS_SWAPFILE(inode) (0) diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c index f580358cad62..65d23eb92fe0 100644 --- a/fs/nfs/nfs3proc.c +++ b/fs/nfs/nfs3proc.c @@ -888,6 +888,35 @@ static int nfs3_return_delegation(struct inode *inode) return 0; } +static const struct inode_operations nfs3_dir_inode_operations = { + .create = nfs_create, + .lookup = nfs_lookup, + .link = nfs_link, + .unlink = nfs_unlink, + .symlink = nfs_symlink, + .mkdir = nfs_mkdir, + .rmdir = nfs_rmdir, + .mknod = nfs_mknod, + .rename = nfs_rename, + .permission = nfs_permission, + .getattr = nfs_getattr, + .setattr = nfs_setattr, + .listxattr = nfs3_listxattr, + .getxattr = nfs3_getxattr, + .setxattr = nfs3_setxattr, + .removexattr = nfs3_removexattr, +}; + +static const struct inode_operations nfs3_file_inode_operations = { + .permission = nfs_permission, + .getattr = nfs_getattr, + .setattr = nfs_setattr, + .listxattr = nfs3_listxattr, + .getxattr = nfs3_getxattr, + .setxattr = nfs3_setxattr, + .removexattr = nfs3_removexattr, +}; + const struct nfs_rpc_ops nfs_v3_clientops = { .version = 3, /* protocol version */ .dentry_ops = &nfs_dentry_operations, diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 6c38bc9c0081..4b6043c20f77 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -427,9 +427,6 @@ extern __be32 root_nfs_parse_addr(char *name); /*__init*/ /* * linux/fs/nfs/file.c */ -#ifdef CONFIG_NFS_V3 -extern const struct inode_operations nfs3_file_inode_operations; -#endif /* CONFIG_NFS_V3 */ extern const struct file_operations nfs_file_operations; #ifdef CONFIG_NFS_V4 extern const struct file_operations nfs4_file_operations; @@ -484,9 +481,6 @@ extern ssize_t nfs_file_direct_write(struct kiocb *iocb, /* * linux/fs/nfs/dir.c */ -#ifdef CONFIG_NFS_V3 -extern const struct inode_operations nfs3_dir_inode_operations; -#endif /* CONFIG_NFS_V3 */ extern const struct file_operations nfs_dir_operations; extern const struct dentry_operations nfs_dentry_operations; -- cgit v1.2.3