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2007-07-10NFS: Remake nfsroot_mount as a permanent part of NFS clientChuck Lever
In preparation for supporting NFSv2 and NFSv3 mount option handling in the kernel NFS client, convert mount_clnt.c to be a permanent part of the NFS client, instead of built only when CONFIG_ROOT_NFS is enabled. In addition, we also replace the "struct sockaddr_in *" argument with something more generic, to help support IPv6 at some later point. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Add a convenient default for the hostname when calling rpc_create()Chuck Lever
A couple of callers just use a stringified IP address for the rpc client's hostname. Move the logic for constructing this into rpc_create(), so it can be shared. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Rename rpcb_getport to be consistent with new rpcb_getport_sync nameChuck Lever
Clean up, for consistency. Rename rpcb_getport as rpcb_getport_async, to match the naming scheme of rpcb_getport_sync. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Rename rpcb_getport_external routineChuck Lever
In preparation for handling NFS mount option parsing in the kernel, rename rpcb_getport_external as rpcb_get_port_sync, and make it available always (instead of only when CONFIG_ROOT_NFS is enabled). Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Allow rpcbind requests to be interrupted by a signal.Chuck Lever
This allows NFS mount requests and RPC re-binding to be interruptible if the server isn't responding. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Introduce nfs4_validate_mount_optionsChuck Lever
Refactor NFSv4 mount processing to break out mount data validation in the same way it's broken out in the NFSv2/v3 mount path. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Clean up nfs_validate_mount_dataChuck Lever
Move error handling code out of the main code path. The switch statement was also improperly indented, according to Documentation/CodingStyle. This prepares nfs_validate_mount_data for the addition of option string parsing. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Add a new NFS debugging flag just for mount processingChuck Lever
Note to self: fix up /usr/sbin/rpcdebug too Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Clean-up: Refactor IP address sanity checks in NFS clientChuck Lever
NFS and NFSv4 mounts can now share server address sanity checking. And, it provides an easy mechanism for adding IPv6 address checking at some later point. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Clean-up: fix a compiler warning in fs/nfs/super.cChuck Lever
/home/cel/linux/fs/nfs/super.c: In function 'nfs_pseudoflavour_to_name': /home/cel/linux/fs/nfs/super.c:270: warning: comparison between signed and unsigned Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Clean up error handling in nfs_get_sbChuck Lever
The error return logic in nfs_get_sb now matches nfs4_get_sb, and is more maintainable. A subsequent patch will take advantage of this simplification. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Clean-up: Replace nfs_copy_user_string with strndup_userChuck Lever
The new string utility function strndup_user can be used instead of nfs_copy_user_string, eliminating an unnecessary duplication of function. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Clean-up: Define macros for maximum host and export path name lengthsChuck Lever
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Clean-up: use correct type when converting NFS blocks to local blocksChuck Lever
inode->i_blocks is a blkcnt_t these days, which can be a u64 or unsigned long, depending on the setting of CONFIG_LSF. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Clean up nfs_size_to_loff_t()Chuck Lever
Use the same file size limit that lockd uses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Fix up stateid locking...Trond Myklebust
We really don't need to grab both the state->so_owner and the inode->i_lock. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Clean up the callers of nfs4_open_recover_helper()Trond Myklebust
Rely on nfs4_try_open_cached() when appropriate. Also fix an RCU violation in _nfs4_do_open_reclaim() Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Don't call OPEN if we already have an open stateid for a fileTrond Myklebust
If we already have a stateid with the correct open mode for a given file, then we can reuse that stateid instead of re-issuing an OPEN call without violating the close-to-open caching semantics. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Check for the existence of a delegation in nfs4_open_prepare()Trond Myklebust
We should not be calling open() on an inode that has a delegation unless we're doing a reclaim. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Clean up _nfs4_proc_open()Trond Myklebust
Use a flag instead of the 'data->rpc_status = -ENOMEM hack. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Allow nfs4_opendata_to_nfs4_state to return errors.Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Improve the debugging of bad sequence id errors...Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Always use the delegation if we have oneTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Clean up confirmation of sequence ids...Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Defer inode revalidation when setting up a delegationTrond Myklebust
Currently we force a synchronous call to __nfs_revalidate_inode() in nfs_inode_set_delegation(). This not only ensures that we cannot call nfs_inode_set_delegation from an asynchronous context, but it also slows down any call to open(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Use RCU to protect delegationsTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Support recalling delegations by stateid part 2Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Support recalling delegations by stateidTrond Myklebust
There appear to be some rogue servers out there that issue multiple delegations with different stateids for the same file. Ensure that when we return delegations, we do so on a per-stateid basis rather than a per-file basis. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Fix up a bug in nfs4_open_recover()Trond Myklebust
Don't clobber the delegation info... Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: set the delegation in nfs4_opendata_to_nfs4_stateTrond Myklebust
This ensures that nfs4_open_release() and nfs4_open_confirm_release() can now handle an eventual delegation that was returned with out open. As such, it fixes a delegation "leak" when the user breaks out of an open call. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Fix a bug in __nfs4_find_state_byownerTrond Myklebust
The test for state->state == 0 does not tell you that the stateid is in the process of being freed. It really tells you that the stateid is not yet initialised... Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Fix atomic open for execute...Trond Myklebust
Currently we do not check for the FMODE_EXEC flag as we should. For that particular case, we need to perform an ACCESS call to the server in order to check that the file is executable. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Reduce the chances of an open_owner identifier collisionTrond Myklebust
Currently we just use a 32-bit counter. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: nfs_increment_open_seqid should not return a valueTrond Myklebust
It is a void function... Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Fix underestimate of NFSv4 lookup request sizeTrond Myklebust
Also fix up the underestimate of fs_locations Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Fix the underestimate of NFSv4 open request sizeTrond Myklebust
The maximum size depends on the filename size and a number of other elements which are currently not being counted. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Fix the NFSv4 owner and owner_group size estimatesTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Don't reuse expired nfs4_state_owner structsTrond Myklebust
That just confuses certain NFSv4 servers. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Fix a credential reference leak in nfs4_get_state_owner()Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Replace NFS_I(inode)->req_lock with inode->i_lockTrond Myklebust
There is no justification for keeping a special spinlock for the exclusive use of the NFS writeback code. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Clean up _nfs4_proc_lookup() vs _nfs4_proc_lookupfh()Trond Myklebust
They differ only slightly in the arguments they take. Why have they not been merged? Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Suppress some noisy and unnecessary printk() calls in call_verify()Trond Myklebust
Convert them into dprintk() calls. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Ensure RPCSEC_GSS destroys the security context when freeing a credTrond Myklebust
Do so by set the gc_proc field to RPC_GSS_PROC_DESTROY, and then sending a NULL RPC call. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Ensure that the struct gss_auth lifetime exceeds the credential'sTrond Myklebust
Add a refcount in order to ensure that the gss_auth doesn't disappear from underneath us while we're freeing up GSS contexts. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Remove the tk_auth macro...Trond Myklebust
We should almost always be deferencing the rpc_auth struct by means of the credential's cr_auth field instead of the rpc_clnt->cl_auth anyway. Fix up that historical mistake, and remove the macro that propagated it. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Allow rpc_auth to run clean up before the rpc_client is destroyedTrond Myklebust
RPCSEC_GSS needs to be able to send NULL RPC calls to the server in order to free up any remaining GSS contexts. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Convert gss_ctx_lock to an RCU lockTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Convert the credential garbage collector into a shrinker callbackTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Give credential cache a local spinlockTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Convert the credcache lookup code to use RCUTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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