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* NFS: Fix a regression when loading the NFS v4 modulebjschuma@gmail.com2012-08-161-15/+0
| | | | | | | | | | | | | | Some systems have a modprobe.d/nfs.conf file that sets an nfs4 alias pointing to nfs.ko, rather than nfs4.ko. This can prevent the v4 module from loading on mount, since the kernel sees that something named "nfs4" has already been loaded. To work around this, I've renamed the modules to "nfsv2.ko" "nfsv3.ko" and "nfsv4.ko". I also had to move the nfs4_fs_type back to nfs.ko to ensure that `mount -t nfs4` still works. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Convert v4 into a moduleBryan Schumaker2012-07-301-2/+7
| | | | | | | | | | | | This patch exports symbols needed by the v4 module. In addition, I also switch over to using IS_ENABLED() to check if CONFIG_NFS_V4 or CONFIG_NFS_V4_MODULE are set. The module (nfs4.ko) will be created in the same directory as nfs.ko and will be automatically loaded the first time you try to mount over NFS v4. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Split out remaining NFS v4 inode functionsBryan Schumaker2012-07-301-0/+39
| | | | | | | | | | Somehow I missed this in my previous patch series, but these functions are only needed by the v4 code and should be moved to a v4-only file. I wasn't exactly sure where I should put these functions, so I moved them into nfs4super.c where I could make them static. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Pass super operations and xattr handlers in the nfs_subversionBryan Schumaker2012-07-301-21/+3
| | | | | | | | I can set all variables in the nfs_fill_super() function, allowing me to remove the nfs4_fill_super() function. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Only initialize the ACL client in the v3 caseBryan Schumaker2012-07-301-1/+1
| | | | | | | | v2 and v4 don't use it, so I create two new nfs_rpc_ops functions to initialize the ACL client only when we are using v3. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Create a try_mount rpc opBryan Schumaker2012-07-301-1/+2
| | | | | | | | | I'm already looking up the nfs subversion in nfs_fs_mount(), so I have easy access to rpc_ops that used to be difficult to reach. This allows me to set up a different mount path for NFS v2/3 and NFS v4. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Remove the NFS v4 xdev mount functionBryan Schumaker2012-07-301-25/+0
| | | | | | | | I can now share this code with the v2 and v3 code by using the NFS subversion structure. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Add version registering frameworkBryan Schumaker2012-07-301-2/+12
| | | | | | | | | | | This patch adds in the code to track multiple versions of the NFS protocol. I created default structures for v2, v3 and v4 so that each version can continue to work while I convert them into kernel modules. I also removed the const parameter from the rpc_version array so that I can change it at runtime. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: exit_nfs_v4() shouldn't be an __exit functionBryan Schumaker2012-07-171-1/+1
| | | | | | | | | ... yet. Right now, init_nfs() is calling this function if an error is encountered when loading the nfs module. An __exit function can't be called from one declared as __init. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Split out the NFS v4 filesystem typesBryan Schumaker2012-07-171-0/+328
| | | | | | | | | This allows me to move the v4 mounting and unmounting functions out of the generic client and into a file that is only compiled when CONFIG_NFS_V4 is enabled. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Initialize v4 sysctls from nfs_init_v4()Bryan Schumaker2012-07-171-0/+9
| | | | | | | And split them out of the generic client into their own file. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Create an init_nfs_v4() functionBryan Schumaker2012-07-171-0/+23
I want to initialize all of NFS v4 in a single function that will eventually be used as the v4 module init function. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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