linux-toradex.git/fs/nfs/blocklayout, branch v3.6.1

pnfsblock: bail out partial page IO

2012-07-30T22:52:06+00:00

Current block layout driver read/write code assumes page
aligned IO in many places. Add a checker to validate the assumption.
Otherwise there would be data corruption like when application does
open(O_WRONLY) and page unaliged write.

Signed-off-by: Peng Tao 
Signed-off-by: Trond Myklebust

NFS: Use proper naming conventions for the nfs_client.net field

2012-05-22T20:45:44+00:00

Clean up:  When naming fields and data types, follow established
conventions to facilitate accurate grep/cscope searches.

Introduced by commit e50a7a1a "NFS: make NFS client allocated per
network namespace context," Tue Jan 10, 2012.

Signed-off-by: Chuck Lever 
Signed-off-by: Trond Myklebust

NFS: create struct nfs_page_array

2012-04-27T18:10:37+00:00

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

2012-04-27T18:10:37+00:00

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

2012-04-26T16:23:23+00:00

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

2012-03-21T13:31:44+00:00

Signed-off-by: Trond Myklebust

NFS: null dereference in dev_remove()

2012-03-13T19:33:08+00:00

In commit 5ffaf85541 "NFS: replace global bl_wq with per-net one" we
made "msg" a pointer instead of a struct stored in stack memory.  But we
forgot to change the memset() here so we're still clearing stack memory
instead clearing the struct like we intended.  It will lead to a kernel
crash.

Signed-off-by: Dan Carpenter 
Signed-off-by: Trond Myklebust

NFS: replace global bl_wq with per-net one

2012-03-11T14:57:35+00:00

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

2012-03-11T14:57:34+00:00

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: start printks w/ NFS: even if func shown

2012-02-06T23:48:00+00:00

This patch addresses printks that have some context to show that they are
from fs/nfs/, but for the sake of consistency now start with NFS:

Signed-off-by: Weston Andros Adamson 
Signed-off-by: Trond Myklebust