NFS: Convert mount option parsing to use functionality from fs_parser.h

Split out from commit "NFS: Add fs_context support."

Convert existing mount option definitions to fs_parameter_enum's and
fs_

NFS: Convert mount option parsing to use functionality from fs_parser.h

Split out from commit "NFS: Add fs_context support."

Convert existing mount option definitions to fs_parameter_enum's and
fs_parameter_spec's. Parse mount options using fs_parse() and
lookup_constant().

Notes:

1) Fixed a typo in the udp6 definition in nfs_xprt_protocol_tokens
from the original commit.

2) fs_parse() expects an fs_context as the first arg so that any
errors can be logged to the fs_context. We're passing NULL for the
fs_context (this will change in commit "NFS: Add fs_context support.")
which is okay as it will cause logfc() to do a printk() instead.

3) fs_parse() expects an fs_paramter as the third arg. We're
building an fs_parameter manually in nfs_fs_context_parse_option(),
which will go away in commit "NFS: Add fs_context support.".

Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

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NFS: Do some tidying of the parsing code

Do some tidying of the parsing code, including:

(*) Returning 0/error rather than true/false.

(*) Putting the nfs_fs_context pointer first in some arg li

NFS: Do some tidying of the parsing code

Do some tidying of the parsing code, including:

(*) Returning 0/error rather than true/false.

(*) Putting the nfs_fs_context pointer first in some arg lists.

(*) Unwrap some lines that will now fit on one line.

(*) Provide unioned sockaddr/sockaddr_storage fields to avoid casts.

(*) nfs_parse_devname() can paste its return values directly into the
nfs_fs_context struct as that's where the caller puts them.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

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NFS: Add a small buffer in nfs_fs_context to avoid string dup

Add a small buffer in nfs_fs_context to avoid string duplication when
parsing numbers. Also make the parsing function wrapper place the

NFS: Add a small buffer in nfs_fs_context to avoid string dup

Add a small buffer in nfs_fs_context to avoid string duplication when
parsing numbers. Also make the parsing function wrapper place the parsed
integer directly in the appropriate nfs_fs_context struct member.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

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NFS: Deindent nfs_fs_context_parse_option()

Deindent nfs_fs_context_parse_option().

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by

NFS: Deindent nfs_fs_context_parse_option()

Deindent nfs_fs_context_parse_option().

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

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NFS: Split nfs_parse_mount_options()

Split nfs_parse_mount_options() to move the prologue, list-splitting and
epilogue into one function and the per-option processing into another.

Signed-off-by: D

NFS: Split nfs_parse_mount_options()

Split nfs_parse_mount_options() to move the prologue, list-splitting and
epilogue into one function and the per-option processing into another.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

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NFS: Rename struct nfs_parsed_mount_data to struct nfs_fs_context

Rename struct nfs_parsed_mount_data to struct nfs_fs_context and rename
pointers to it to "ctx". At some point this will be pointed

NFS: Rename struct nfs_parsed_mount_data to struct nfs_fs_context

Rename struct nfs_parsed_mount_data to struct nfs_fs_context and rename
pointers to it to "ctx". At some point this will be pointed to by an
fs_context struct's fs_private pointer.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

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NFS: Constify mount argument match tables

The mount argument match tables should never be altered so constify them.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@z

NFS: Constify mount argument match tables

The mount argument match tables should never be altered so constify them.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

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NFS: Move mount parameterisation bits into their own file

Split various bits relating to mount parameterisation out from
fs/nfs/super.c into their own file to form the basis of filesystem context
ha

NFS: Move mount parameterisation bits into their own file

Split various bits relating to mount parameterisation out from
fs/nfs/super.c into their own file to form the basis of filesystem context
handling for NFS.

No other changes are made to the code beyond removing 'static' qualifiers.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

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