kernel.git/fs/nfs/blocklayout/blocklayout.c, branch linux-3.5.y

NFS: create struct nfs_page_array

2012-04-27T18:10:37Z

Both nfs_read_data and nfs_write_data devote several fields which can be combined into a single shared struct. Signed-off-by: Fred Isaman Signed-off-by: Trond Myklebust

NFS: create common nfs_pgio_header for both read and write

2012-04-27T18:10:37Z

In order to avoid duplicating all the data in nfs_read_data whenever we split it up into multiple RPC calls (either due to a short read result or due to rsize < PAGE_SIZE), we split out the bits that are the same per RPC call into a separate "header" structure. The goal this patch moves towards is to have a single header refcounted by several rpc_data structures. Thus, want to always refer from rpc_data to the header, and not the other way. This patch comes close to that ideal, but the directio code currently needs some special casing, isolated in the nfs_direct_[read_write]hdr_release() functions. This will be dealt with in a future patch. Signed-off-by: Fred Isaman Signed-off-by: Trond Myklebust

fix page number calculation bug for block layout decode buffer

2012-04-26T16:23:23Z

Signed-off-by: Jim Rees Suggested-by: Andy Adamson Suggested-by: Fred Isaman Signed-off-by: Trond Myklebust

NFS: Fix more NFS debug related build warnings

2012-03-21T13:31:44Z

Signed-off-by: Trond Myklebust

NFS: replace global bl_wq with per-net one

2012-03-11T14:57:35Z

This queue is used for sleeping in kernel and it have to be per-net since we don't want to wake any other waiters except in out network nemespace. BTW, move wq to per-net data is easy. But some way to handle upcall timeouts have to be provided. On message destroy in case of timeout, tasks, waiting for message to be delivered, should be awakened. Thus, some data required to located the right wait queue. Chosen solution replaces rpc_pipe_msg object with new introduced bl_pipe_msg object, containing rpc_pipe_msg and proper wq. Signed-off-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust

NFS: remove RPC PipeFS mount point reference from blocklayout routines

2012-01-31T23:20:27Z

This is a cleanup patch. We don't need this reference anymore, because blocklayout pipes dentries now creates and destroys in per-net operations and on PipeFS mount/umount notification. Note that nfs4blocklayout_register_net() now returns 0 instead of -ENOENT in case of PipeFS superblock absence. This is ok, because blocklayout pipe dentry will be created on PipeFS mount event. Signed-off-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust

NFS: blocklayout PipeFS notifier introduced

2012-01-31T23:20:27Z

This patch subscribes blocklayout pipes to RPC pipefs notifications. Notifier is registering on blocklayout module load. This notifier callback is responsible for creation/destruction of PipeFS blocklayout pipe dentry. Note that no locking required in notifier callback because PipeFS superblock pointer is passed as an argument from it's creation or destruction routine and thus we can be sure about it's validity. Signed-off-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust

NFS: blocklayout pipe creation per network namespace context introduced

2012-01-31T23:20:27Z

This patch implements blocklayout pipe creation and registration per each existent network namespace. This was achived by registering NFS per-net operations, responsible for blocklayout pipe allocation/register and unregister/destruction instead of initialization and destruction of static "bl_device_pipe" pipe (this one was removed). Note, than pointer to network blocklayout pipe is stored in per-net "nfs_net" structure, because allocating of one more per-net structure for blocklayout module looks redundant. This patch also changes dev_remove() function prototype (and all it's callers, where it' requied) by adding network namespace pointer parameter, which is used to discover proper blocklayout pipe for rpc_queue_upcall() call. Signed-off-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust

NFS: handle blocklayout pipe PipeFS dentry by network namespace aware routines

2012-01-31T23:20:27Z

This patch makes blocklayout pipe dentry allocated and destroyed in network namespace context by PipeFS network namespace aware routines. Network namespace context is obtained from nfs_client structure. Signed-off-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust

SUNRPC: split SUNPRC PipeFS dentry and private pipe data creation

2012-01-31T23:20:25Z

This patch is a final step towards to removing PipeFS inode references from kernel code other than PipeFS itself. It makes all kernel SUNRPC PipeFS users depends on pipe private data, which state depend on their specific operations, etc. This patch completes SUNRPC PipeFS preparations and allows to create pipe private data and PipeFS dentries independently. Next step will be making SUNPRC PipeFS dentries allocated by SUNRPC PipeFS network namespace aware routines. Signed-off-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust