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authorLinus Torvalds <torvalds@linux-foundation.org>2020-12-16 03:52:30 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-16 03:52:30 +0100
commit1a50ede2b3c846761a71c409f53e9121311a13c2 (patch)
tree40f228239b077c2db87580dfd66556ad0ca7046f /fs/nfs
parentMerge tag 'jfs-5.11' of git://github.com/kleikamp/linux-shaggy (diff)
parentnfsd: Record NFSv4 pre/post-op attributes as non-atomic (diff)
downloadlinux-1a50ede2b3c846761a71c409f53e9121311a13c2.tar.xz
linux-1a50ede2b3c846761a71c409f53e9121311a13c2.zip
Merge tag 'nfsd-5.11' of git://git.linux-nfs.org/projects/cel/cel-2.6
Pull nfsd updates from Chuck Lever: "Several substantial changes this time around: - Previously, exporting an NFS mount via NFSD was considered to be an unsupported feature. With v5.11, the community has attempted to make re-exporting a first-class feature of NFSD. This would enable the Linux in-kernel NFS server to be used as an intermediate cache for a remotely-located primary NFS server, for example, even with other NFS server implementations, like a NetApp filer, as the primary. - A short series of patches brings support for multiple RPC/RDMA data chunks per RPC transaction to the Linux NFS server's RPC/RDMA transport implementation. This is a part of the RPC/RDMA spec that the other premiere NFS/RDMA implementation (Solaris) has had for a very long time, and completes the implementation of RPC/RDMA version 1 in the Linux kernel's NFS server. - Long ago, NFSv4 support was introduced to NFSD using a series of C macros that hid dprintk's and goto's. Over time, the kernel's XDR implementation has been greatly improved, but these C macros have remained and become fallow. A series of patches in this pull request completely replaces those macros with the use of current kernel XDR infrastructure. Benefits include: - More robust input sanitization in NFSD's NFSv4 XDR decoders. - Make it easier to use common kernel library functions that use XDR stream APIs (for example, GSS-API). - Align the structure of the source code with the RFCs so it is easier to learn, verify, and maintain our XDR implementation. - Removal of more than a hundred hidden dprintk() call sites. - Removal of some explicit manipulation of pages to help make the eventual transition to xdr->bvec smoother. - On top of several related fixes in 5.10-rc, there are a few more fixes to get the Linux NFSD implementation of NFSv4.2 inter-server copy up to speed. And as usual, there is a pinch of seasoning in the form of a collection of unrelated minor bug fixes and clean-ups. Many thanks to all who contributed this time around!" * tag 'nfsd-5.11' of git://git.linux-nfs.org/projects/cel/cel-2.6: (131 commits) nfsd: Record NFSv4 pre/post-op attributes as non-atomic nfsd: Set PF_LOCAL_THROTTLE on local filesystems only nfsd: Fix up nfsd to ensure that timeout errors don't result in ESTALE exportfs: Add a function to return the raw output from fh_to_dentry() nfsd: close cached files prior to a REMOVE or RENAME that would replace target nfsd: allow filesystems to opt out of subtree checking nfsd: add a new EXPORT_OP_NOWCC flag to struct export_operations Revert "nfsd4: support change_attr_type attribute" nfsd4: don't query change attribute in v2/v3 case nfsd: minor nfsd4_change_attribute cleanup nfsd: simplify nfsd4_change_info nfsd: only call inode_query_iversion in the I_VERSION case nfs_common: need lock during iterate through the list NFSD: Fix 5 seconds delay when doing inter server copy NFSD: Fix sparse warning in nfs4proc.c SUNRPC: Remove XDRBUF_SPARSE_PAGES flag in gss_proxy upcall sunrpc: clean-up cache downcall nfsd: Fix message level for normal termination NFSD: Remove macros that are no longer used NFSD: Replace READ* macros in nfsd4_decode_compound() ...
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/blocklayout/blocklayout.c2
-rw-r--r--fs/nfs/blocklayout/dev.c2
-rw-r--r--fs/nfs/dir.c2
-rw-r--r--fs/nfs/export.c3
-rw-r--r--fs/nfs/filelayout/filelayout.c2
-rw-r--r--fs/nfs/filelayout/filelayoutdev.c2
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayout.c2
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayoutdev.c2
-rw-r--r--fs/nfs/nfs42xdr.c2
-rw-r--r--fs/nfs/nfs4xdr.c6
10 files changed, 13 insertions, 12 deletions
diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c
index 08108b6d2fa1..3be6836074ae 100644
--- a/fs/nfs/blocklayout/blocklayout.c
+++ b/fs/nfs/blocklayout/blocklayout.c
@@ -697,7 +697,7 @@ bl_alloc_lseg(struct pnfs_layout_hdr *lo, struct nfs4_layoutget_res *lgr,
xdr_init_decode_pages(&xdr, &buf,
lgr->layoutp->pages, lgr->layoutp->len);
- xdr_set_scratch_buffer(&xdr, page_address(scratch), PAGE_SIZE);
+ xdr_set_scratch_page(&xdr, scratch);
status = -EIO;
p = xdr_inline_decode(&xdr, 4);
diff --git a/fs/nfs/blocklayout/dev.c b/fs/nfs/blocklayout/dev.c
index dec5880ac6de..acb1d22907da 100644
--- a/fs/nfs/blocklayout/dev.c
+++ b/fs/nfs/blocklayout/dev.c
@@ -510,7 +510,7 @@ bl_alloc_deviceid_node(struct nfs_server *server, struct pnfs_device *pdev,
goto out;
xdr_init_decode_pages(&xdr, &buf, pdev->pages, pdev->pglen);
- xdr_set_scratch_buffer(&xdr, page_address(scratch), PAGE_SIZE);
+ xdr_set_scratch_page(&xdr, scratch);
p = xdr_inline_decode(&xdr, sizeof(__be32));
if (!p)
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 4e011adaf967..8a24fe20dccf 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -576,7 +576,7 @@ int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *en
goto out_nopages;
xdr_init_decode_pages(&stream, &buf, xdr_pages, buflen);
- xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE);
+ xdr_set_scratch_page(&stream, scratch);
do {
if (entry->label)
diff --git a/fs/nfs/export.c b/fs/nfs/export.c
index 3430d6891e89..7412bb164fa7 100644
--- a/fs/nfs/export.c
+++ b/fs/nfs/export.c
@@ -171,4 +171,7 @@ const struct export_operations nfs_export_ops = {
.encode_fh = nfs_encode_fh,
.fh_to_dentry = nfs_fh_to_dentry,
.get_parent = nfs_get_parent,
+ .flags = EXPORT_OP_NOWCC|EXPORT_OP_NOSUBTREECHK|
+ EXPORT_OP_CLOSE_BEFORE_UNLINK|EXPORT_OP_REMOTE_FS|
+ EXPORT_OP_NOATOMIC_ATTR,
};
diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c
index 7f5aa0403e16..d158a500c25c 100644
--- a/fs/nfs/filelayout/filelayout.c
+++ b/fs/nfs/filelayout/filelayout.c
@@ -666,7 +666,7 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo,
return -ENOMEM;
xdr_init_decode_pages(&stream, &buf, lgr->layoutp->pages, lgr->layoutp->len);
- xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE);
+ xdr_set_scratch_page(&stream, scratch);
/* 20 = ufl_util (4), first_stripe_index (4), pattern_offset (8),
* num_fh (4) */
diff --git a/fs/nfs/filelayout/filelayoutdev.c b/fs/nfs/filelayout/filelayoutdev.c
index d913e818858f..86c3f7e69ec4 100644
--- a/fs/nfs/filelayout/filelayoutdev.c
+++ b/fs/nfs/filelayout/filelayoutdev.c
@@ -82,7 +82,7 @@ nfs4_fl_alloc_deviceid_node(struct nfs_server *server, struct pnfs_device *pdev,
goto out_err;
xdr_init_decode_pages(&stream, &buf, pdev->pages, pdev->pglen);
- xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE);
+ xdr_set_scratch_page(&stream, scratch);
/* Get the stripe count (number of stripe index) */
p = xdr_inline_decode(&stream, 4);
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 24bf5797f88a..4252ce633533 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -378,7 +378,7 @@ ff_layout_alloc_lseg(struct pnfs_layout_hdr *lh,
xdr_init_decode_pages(&stream, &buf, lgr->layoutp->pages,
lgr->layoutp->len);
- xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE);
+ xdr_set_scratch_page(&stream, scratch);
/* stripe unit and mirror_array_cnt */
rc = -EIO;
diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
index 3eda40a320a5..c9b61b818ec1 100644
--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -69,7 +69,7 @@ nfs4_ff_alloc_deviceid_node(struct nfs_server *server, struct pnfs_device *pdev,
INIT_LIST_HEAD(&dsaddrs);
xdr_init_decode_pages(&stream, &buf, pdev->pages, pdev->pglen);
- xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE);
+ xdr_set_scratch_page(&stream, scratch);
/* multipath count */
p = xdr_inline_decode(&stream, 4);
diff --git a/fs/nfs/nfs42xdr.c b/fs/nfs/nfs42xdr.c
index 8432bd6b95f0..ea7dd8cbfac9 100644
--- a/fs/nfs/nfs42xdr.c
+++ b/fs/nfs/nfs42xdr.c
@@ -1539,7 +1539,7 @@ static int nfs4_xdr_dec_listxattrs(struct rpc_rqst *rqstp,
struct compound_hdr hdr;
int status;
- xdr_set_scratch_buffer(xdr, page_address(res->scratch), PAGE_SIZE);
+ xdr_set_scratch_page(xdr, res->scratch);
status = decode_compound_hdr(xdr, &hdr);
if (status)
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index c6dbfcae7517..2eabe5add344 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -6403,10 +6403,8 @@ nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
struct compound_hdr hdr;
int status;
- if (res->acl_scratch != NULL) {
- void *p = page_address(res->acl_scratch);
- xdr_set_scratch_buffer(xdr, p, PAGE_SIZE);
- }
+ if (res->acl_scratch != NULL)
+ xdr_set_scratch_page(xdr, res->acl_scratch);
status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;