linux-toradex.git/include/linux/nfs_fs.h, branch v3.4.73

NFS: Fix the initialisation of the readdir 'cookieverf' array

2012-10-02T17:30:19+00:00

commit c3f52af3e03013db5237e339c817beaae5ec9e3a upstream.

When the NFS_COOKIEVERF helper macro was converted into a static
inline function in commit 99fadcd764 (nfs: convert NFS_*(inode)
helpers to static inline), we broke the initialisation of the
readdir cookies, since that depended on doing a memset with an
argument of 'sizeof(NFS_COOKIEVERF(inode))' which therefore
changed from sizeof(be32 cookieverf[2]) to sizeof(be32 *).

At this point, NFS_COOKIEVERF seems to be more of an obfuscation
than a helper, so the best thing would be to just get rid of it.

Also see: https://bugzilla.kernel.org/show_bug.cgi?id=46881

Reported-by: Andi Kleen 
Reported-by: David Binderman 
Signed-off-by: Trond Myklebust 
Signed-off-by: Greg Kroah-Hartman

NFS: Fix more NFS debug related build warnings

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

Signed-off-by: Trond Myklebust

nfs: non void functions must return a value

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

Signed-off-by: Stephen Rothwell 
Signed-off-by: Trond Myklebust

SUNRPC/NFS: Add Kbuild dependencies for NFS_DEBUG/RPC_DEBUG

2012-03-20T17:08:26+00:00

This allows us to turn on/off the dprintk() debugging interfaces for
those distributions that don't ship the 'rpcdebug' utility.
It also allows us to add Kbuild dependencies. Specifically, we already
know that dprintk() in general relies on CONFIG_SYSCTL. Now it turns out
that the NFS dprintks depend on CONFIG_CRC32 after we added support
for the filehandle hash.

Reported-by: Paul Gortmaker 
Signed-off-by: Trond Myklebust

NFS: remove nfs_inode radix tree

2012-03-10T22:14:10+00:00

The radix tree is only being used to compile lists of reqs needing commit.
It is simpler to just put the reqs directly into a list.

Signed-off-by: Fred Isaman 
Signed-off-by: Trond Myklebust

NFS: add filehandle crc for debug display

2012-03-07T15:34:07+00:00

Match wireshark's CRC-32 hash for easier debugging

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

NFS: Add a client-side function to display NFS file handles

2012-03-02T22:18:08+00:00

For debugging, introduce a simplistic function to print NFS file
handles on the system console.  The main function is hooked into the
dprintk debugging facility, but you can directly call the helper,
_nfs_display_fhandle(), if you want to print a handle unconditionally.

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

pull manipulations of rpc_cred inside alloc_nfs_open_context()

2012-01-04T03:52:34+00:00

No need to duplicate them in both callers; make it return
ERR_PTR(-ENOMEM) on allocation failure instead of NULL and
it'll be able to report rpc_lookup_cred() failures just
fine.  Callers are much happier that way...

Signed-off-by: Al Viro

nfs: when attempting to open a directory, fall back on normal lookup (try #5)

2011-11-04T20:39:04+00:00

commit d953126 changed how nfs_atomic_lookup handles an -EISDIR return
from an OPEN call. Prior to that patch, that caused the client to fall
back to doing a normal lookup. When that patch went in, the code began
returning that error to userspace. The d_revalidate codepath however
never had the corresponding change, so it was still possible to end up
with a NULL ctx->state pointer after that.

That patch caused a regression. When we attempt to open a directory that
does not have a cached dentry, that open now errors out with EISDIR. If
you attempt the same open with a cached dentry, it will succeed.

Fix this by reverting the change in nfs_atomic_lookup and allowing
attempts to open directories to fall back to a normal lookup

Also, add a NFSv4-specific f_ops->open routine that just returns
-ENOTDIR. This should never be called if things are working properly,
but if it ever is, then the dprintk may help in debugging.

To facilitate this, a new file_operations field is also added to the
nfs_rpc_ops struct.

Cc: stable@kernel.org
Signed-off-by: Jeff Layton 
Signed-off-by: Trond Myklebust

nfs4: serialize layoutcommit

2011-10-31T15:51:28+00:00

Current pnfs_layoutcommit_inode can not handle parallel layoutcommit.
And as Trond suggested , there is no need for client to optimize for
parallel layoutcommit. So add NFS_INO_LAYOUTCOMMITTING flag to
mark inflight layoutcommit and serialize lalyoutcommit with it.
Also mark_inode_dirty_sync if pnfs_layoutcommit_inode fails to issue
layoutcommit.

Reported-by: Vitaliy Gusev 
Signed-off-by: Peng Tao 
Signed-off-by: Jim Rees 
Signed-off-by: Trond Myklebust