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

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: replace global bl_mount_reply with per-net one

2012-03-11T14:57:34Z

This global variable is used for blocklayout downcall and thus can be corrupted if case of existence of multiple networks namespaces. 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

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

pnfsblock: alloc short extent before submit bio

2012-01-12T21:52:10Z

As discussed earlier, it is better for block client to allocate memory for tracking extents state before submitting bio. So the patch does it by allocating a short_extent for every INVALID extent touched by write pagelist and for every zeroing page we created, saving them in layout header. Then in end_io we can just use them to create commit list items and avoid memory allocation there. Signed-off-by: Peng Tao Signed-off-by: Benny Halevy Signed-off-by: Trond Myklebust

pnfsblock: cleanup bl_mark_sectors_init

2012-01-12T21:52:09Z

It does not need to manipulate on partial initialized blocks. Writeback code takes care of it. Signed-off-by: Peng Tao Signed-off-by: Benny Halevy Signed-off-by: Trond Myklebust

SUNRPC/NFS: make rpc pipe upcall generic

2011-10-18T16:08:12Z

The same function is used by idmap, gss and blocklayout code. Make it generic. Signed-off-by: Peng Tao Signed-off-by: Jim Rees Cc: stable@kernel.org [3.0] Signed-off-by: Trond Myklebust

pnfsblock: fix size of upcall message

2011-10-18T16:08:11Z

Make the status field explicitly 32 bits. "...it's unlikely that the kernel and userspace would differ on the size of an int here, but it might be a good idea to go ahead and make that explicitly 32 bits in case we end up dealing with more exotic arches at some point in the future." Suggested-by: Jeff Layton Signed-off-by: Jim Rees Signed-off-by: Benny Halevy Cc: stable@kernel.org [3.0] Signed-off-by: Trond Myklebust

pnfsblock: note written INVAL areas for layoutcommit

2011-07-31T16:18:17Z

Signed-off-by: Peng Tao Signed-off-by: Fred Isaman Signed-off-by: Benny Halevy Signed-off-by: Benny Halevy Signed-off-by: Jim Rees Signed-off-by: Trond Myklebust

pnfsblock: cleanup_layoutcommit

2011-07-31T16:18:17Z

In blocklayout driver. There are two things happening while layoutcommit/cleanup. 1. the modified extents are encoded. 2. On cleanup the extents are put back on the layout rw extents list, for reads. In the new system where actual xdr encoding is done in encode_layoutcommit() directly into xdr buffer, these are the new commit stages: 1. On setup_layoutcommit, the range is adjusted as before and a structure is allocated for communication with bl_encode_layoutcommit && bl_cleanup_layoutcommit (Generic layer provides a void-star to hang it on) 2. bl_encode_layoutcommit is called to do the actual encoding directly into xdr. The commit-extent-list is not freed and is stored on above structure. FIXME: The code is not yet converted to the new XDR cleanup 3. On cleanup the commit-extent-list is put back by a call to set_to_rw() as before, but with no need for XDR decoding of the list as before. And the commit-extent-list is freed. Finally allocated structure is freed. [rm inode and pnfs_layout_hdr args from cleanup_layoutcommit()] Signed-off-by: Jim Rees [pnfsblock: introduce bl_committing list] Signed-off-by: Peng Tao [pnfsblock: SQUASHME: adjust to API change] Signed-off-by: Fred Isaman [blocklayout: encode_layoutcommit implementation] Signed-off-by: Boaz Harrosh [pnfsblock: fix bug setting up layoutcommit.] Signed-off-by: Tao Guo [pnfsblock: cleanup_layoutcommit wants a status parameter] Signed-off-by: Boaz Harrosh Signed-off-by: Benny Halevy Signed-off-by: Benny Halevy Signed-off-by: Jim Rees Signed-off-by: Trond Myklebust