- 30 Jan, 2008 40 commits
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Trond Myklebust authored
Signed-off-by:Trond Myklebust <Trond.Myklebust@netapp.com>
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Chuck Lever authored
Clean up: pass 5 arguments to nlmclnt_init() in a structure similar to the new nfs_client_initdata structure. Signed-off-by:Chuck Lever <chuck.lever@oracle.com>
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Chuck Lever authored
Now that each NFS mount point caches its own nlm_host structure, it can be passed to nlmclnt_proc() for each lock request. By pinning an nlm_host for each mount point, we trade the overhead of looking up or creating a fresh nlm_host struct during every NLM procedure call for a little extra memory. We also restrict the nlmclnt_proc symbol to limit the use of this call to in-tree modules. Note that nlm_lookup_host() (just removed from the client's per-request NLM processing) could also trigger an nlm_host garbage collection. Now client-side nlm_host garbage collection occurs only during NFS mount processing. Since the NFS client now holds a reference on these nlm_host structures, they wouldn't have been affected by garbage collection anyway. Given that nlm_lookup_host() reorders the global nlm_host chain after every successful lookup, and that a garbage collection could be triggered during the call, we've removed a significant amount of per-NLM-request CPU processing overhead. Sidebar: there are only a few remaining references to the internals of NFS inodes in the client-side NLM code. The only references I found are related to extracting or comparing the inode's file handle via NFS_FH(). One is in nlmclnt_grant(); the other is in nlmclnt_setlockargs(). Signed-off-by:
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Chuck Lever authored
Cache an appropriate nlm_host structure in the NFS client's mount point metadata for later use. Note that there is no need to set NFS_MOUNT_NONLM in the error case -- if nfs_start_lockd() returns a non-zero value, its callers ensure that the mount request fails outright. Signed-off-by:
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Chuck Lever authored
We would like to remove the per-lock-operation nlm_lookup_host() call from nlmclnt_proc(). The new architecture pins an nlm_host structure to each NFS client superblock that has the "lock" mount option set. The NFS client passes in the pinned nlm_host structure during each call to nlmclnt_proc(). NFS client unmount processing "puts" the nlm_host so it can be garbage- collected later. This patch introduces externally callable NLM functions that handle mount-time nlm_host set up and tear-down. Signed-off-by:
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Trond Myklebust authored
...and eliminate an unnecessary cast. Signed-off-by: -
Chuck Lever authored
Clean up: have the set up routines explicitly pass the strings to be used for the transport name and NETID. This removes a number of conditionals and dependencies on rpc_xprt.prot, which is overloaded. Tighten up type checking on the address_strings array while we're at it. Signed-off-by:
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Chuck Lever authored
The cookie->len field is unsigned, so the loop index variable in nlmdbg_cookie2a() should also be unsigned. Signed-off-by:
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Chuck Lever authored
Clean up: commit 4899f9c8 added nfs_write_end(), which introduces a conditional expression that returns an unsigned integer in one arm and a signed integer in the other. Signed-off-by:
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Chuck Lever authored
Clean up: PAGE_CACHE_SIZE is unsigned, and nfs_pageio_init() takes a size_t. Signed-off-by:
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Chuck Lever authored
Clean up: always use the same type when handling buffer lengths. As a bonus, this prevents a mixed sign comparison in idmap_lookup_name. Signed-off-by:
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Chuck Lever authored
The idmap_pipe_upcall() function expects the copy_to_user() function to return a negative error value if the call fails, but copy_to_user() returns an unsigned long number of bytes that couldn't be copied. Signed-off-by:
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Chuck Lever authored
Clean up white space damage and use standard kernel coding conventions for return statements. Signed-off-by:
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Chuck Lever authored
The gss_pipe_upcall() function expects the copy_to_user() function to return a negative error value if the call fails, but copy_to_user() returns an unsigned long number of bytes that couldn't be copied. Can rpc_pipefs actually retry a partially completed upcall read? If not, then gss_pipe_upcall() should punt any partial read, just like the upcall logic in net/sunrpc/cache.c. Signed-off-by:
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Trond Myklebust authored
Currently, if you have a server mounted using networking protocol, you cannot specify a different value using the 'proto=' option on another mountpoint. Signed-off-by: -
Trond Myklebust authored
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Trond Myklebust authored
It isn't sufficient just to limit timeout->to_initval, we also need to limit to_maxval. Signed-off-by: -
Trond Myklebust authored
In order to be able to support setting the timeo and retrans parameters on a per-mountpoint basis, we move the rpc_timeout structure into the rpc_clnt. Signed-off-by: -
Trond Myklebust authored
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Trond Myklebust authored
There is no reason why we shouldn't just pass the rpc_create_args. Signed-off-by: -
Trond Myklebust authored
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Chuck Lever authored
Now that the needed IPv6 infrastructure is in place, allow the NFS client's IP address parser to generate AF_INET6 addresses. Signed-off-by:
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Chuck Lever authored
Replace the nfs_server and mount_server address fields in the nfs_parsed_mount_data structure with a "struct sockaddr_storage" instead of a "struct sockaddr_in". Signed-off-by:
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Chuck Lever authored
Refactor the logic to parse incoming text-based IP addresses. Use the in4_pton() function instead of the older in_aton(), following the lead of the in-kernel CIFS client. Later we'll add IPv6 address parsing using the matching in6_pton() function. For now we can't allow IPv6 address parsing: we must expand the size of the address storage fields in the nfs_parsed_mount_options struct before we can parse and store IPv6 addresses. Signed-off-by:
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Chuck Lever authored
In the name of address family compatibility, we can't have the NIP_FMT and NIPQUAD macros in nfs_try_mount(). Instead, we can make use of an unused mount option to display the mount server's hostname. Signed-off-by:
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Chuck Lever authored
Change the addr field in the nfs_clone_mount structure to store a "struct sockaddr *" to support non-IPv4 addresses in the NFS client. Note this is mostly a cosmetic change, and does not actually allow referrals using IPv6 addresses. The existing referral code assumes that the server returns a string that represents an IPv4 address. This code needs to support hostnames and IPv6 addresses as well as IPv4 addresses, thus it will need to be reorganized completely (to handle DNS resolution in user space). Signed-off-by:
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Chuck Lever authored
Adjust the arguments and callers of nfs4_set_client() to pass a "struct sockaddr *" instead of a "struct sockaddr_in *" to support non-IPv4 addresses in the NFS client. Signed-off-by:
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Chuck Lever authored
Adjust arguments and callers of nfs_get_client() to pass a "struct sockaddr *" instead of "struct sockaddr_in *" to support non-IPv4 addresses. Signed-off-by:
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Chuck Lever authored
Adjust arguments and callers of nfs_find_client() to pass a "struct sockaddr *" instead of "struct sockaddr_in *" to support non-IPv4 addresses. Signed-off-by:
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Chuck Lever authored
Change the addr field in the cb_recallargs struct to a "struct sockaddr *" to support non-IPv4 addresses. Signed-off-by:
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Chuck Lever authored
Change the addr field in the cb_getattrargs struct to a "struct sockaddr *" to support non-IPv4 addresses. Signed-off-by:
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Chuck Lever authored
Prepare for managing larger addresses in the NFS client by widening the nfs_client struct's cl_addr field. Signed-off-by:
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Trond Myklebust authored
Introduce AF_INET6-specific address checking to __nfs_find_client(). Signed-off-by: -
Chuck Lever authored
Create a helper function to set the default NFS port for NFSv4 mount points. The helper supports both AF_INET and AF_INET6 family addresses. Signed-off-by:
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Chuck Lever authored
We'll need to set the port number of an AF_INET or AF_INET6 address in several places in fs/nfs/super.c, so introduce a helper that can manage this for us. We put this helper to immediate use. Signed-off-by:
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Chuck Lever authored
Add support to nfs_verify_server_address for recognizing AF_INET6 addresses. Signed-off-by:
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Chuck Lever authored
Refactor nfs_compare_super() and add AF_INET6 support. Replace the generic memcmp() to document explicitly what parts of the addresses must match in this check, and make the comparison independent of the lengths of both addresses. A side benefit is both tests are more computationally efficient than a memcmp(). Signed-off-by:
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Chuck Lever authored
Clean up: fix an outdated block comment, and address a comparison between a signed and unsigned integer. Signed-off-by:
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Chuck Lever authored
Clean up: The client side peer address is available in callback_proc.c, so move a dprintk out of fs/nfs/callback.c and into fs/nfs/callback_proc.c. This is more consistent with other debugging messages, and the proc routines have more information about each request to display. Signed-off-by:
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Chuck Lever authored
To ensure the NFS client displays IPv6 addresses properly, replace address family-specific NIPQUAD() invocations with a call to the RPC client to get a formatted string representing the remote peer's address. Signed-off-by:
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