linux-toradex.git/include/linux/sunrpc/xdr.h, branch v3.4.73

NFSv4: include bitmap in nfsv4 get acl data

2012-01-05T15:42:42+00:00

The NFSv4 bitmap size is unbounded: a server can return an arbitrary
sized bitmap in an FATTR4_WORD0_ACL request.  Replace using the
nfs4_fattr_bitmap_maxsz as a guess to the maximum bitmask returned by a server
with the inclusion of the bitmap (xdr length plus bitmasks) and the acl data
xdr length to the (cached) acl page data.

This is a general solution to commit e5012d1f "NFSv4.1: update
nfs4_fattr_bitmap_maxsz" and fixes hitting a BUG_ON in xdr_shrink_bufhead
when getting ACLs.

Fix a bug in decode_getacl that returned -EINVAL on ACLs > page when getxattr
was called with a NULL buffer, preventing ACL > PAGE_SIZE from being retrieved.

Cc: stable@kernel.org
Signed-off-by: Andy Adamson 
Signed-off-by: Trond Myklebust

SUNRPC: introduce xdr_init_decode_pages

2011-05-29T17:52:32+00:00

Initialize xdr_stream and xdr_buf using an array of page pointers
and length of buffer.

Signed-off-by: Benny Halevy

Merge branch 'bugfixes' into nfs-for-2.6.38

2011-01-10T19:48:02+00:00

Conflicts:
	fs/nfs/nfs2xdr.c
	fs/nfs/nfs3xdr.c
	fs/nfs/nfs4xdr.c

NFS: Don't use vm_map_ram() in readdir

2011-01-10T19:45:01+00:00

vm_map_ram() is not available on NOMMU platforms, and causes trouble
on incoherrent architectures such as ARM when we access the page data
through both the direct and the virtual mapping.

The alternative is to use the direct mapping to access page data
for the case when we are not crossing a page boundary, but to copy
the data into a linear scratch buffer when we are accessing data
that spans page boundaries.

Signed-off-by: Trond Myklebust 
Tested-by: Marc Kleine-Budde 
Cc: stable@kernel.org  [2.6.37]

SUNRPC: New xdr_streams XDR decoder API

2010-12-16T17:37:25+00:00

Now that all client-side XDR decoder routines use xdr_streams, there
should be no need to support the legacy calling sequence [rpc_rqst *,
__be32 *, RPC res *] anywhere.  We can construct an xdr_stream in the
generic RPC code, instead of in each decoder function.

This is a refactoring change.  It should not cause different behavior.

Signed-off-by: Chuck Lever 
Tested-by: J. Bruce Fields 
Signed-off-by: Trond Myklebust

SUNRPC: New xdr_streams XDR encoder API

2010-12-16T17:37:25+00:00

Now that all client-side XDR encoder routines use xdr_streams, there
should be no need to support the legacy calling sequence [rpc_rqst *,
__be32 *, RPC arg *] anywhere.  We can construct an xdr_stream in the
generic RPC code, instead of in each encoder function.

Also, all the client-side encoder functions return 0 now, making a
return value superfluous.  Take this opportunity to convert them to
return void instead.

This is a refactoring change.  It should not cause different behavior.

Signed-off-by: Chuck Lever 
Tested-by: J. Bruce Fields 
Signed-off-by: Trond Myklebust

SUNRPC: define xdr_decode_opaque_fixed

2010-10-24T22:02:53+00:00

A helper for decoding a fixed length opaque value.
Returns a pointer to the next item in the xdr stream.

Signed-off-by: Benny Halevy 
Signed-off-by: Fred Isaman 
Signed-off-by: Trond Myklebust

SUNRPC: Add a helper function xdr_inline_peek

2010-10-23T19:27:32+00:00

We sometimes need to be able to read ahead in an xdr_stream without
incrementing the current pointer position.

Signed-off-by: Trond Myklebust

SUNRPC: Refactor logic to NUL-terminate strings in pages

2010-09-21T20:55:48+00:00

Clean up: Introduce a helper to '\0'-terminate XDR strings
that are placed in a page in the page cache.

Signed-off-by: Chuck Lever 
Signed-off-by: Trond Myklebust

SUNRPC: Trivial cleanups in include/linux/sunrpc/xdr.h

2010-05-14T19:09:31+00:00

Clean up: Update the documenting comment, and fix some minor white
space issues.

Signed-off-by: Chuck Lever 
Signed-off-by: Trond Myklebust