22 Oct, 2015
1 commit
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It's not needed to checking NFS_DEBUG before define NFSDBG_FACILITY, remove it.
Signed-off-by: Kinglong Mee
Signed-off-by: Trond Myklebust
29 Jun, 2013
1 commit
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Instead of handling this as a special case in the auth-selection code,
we can simply fake up an auth_flavs list when the server doesn't
provide it.Signed-off-by: Jeff Layton
Signed-off-by: Trond Myklebust
05 Nov, 2012
1 commit
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Signed-off-by: Trond Myklebust
01 Nov, 2012
1 commit
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In very busy v3 environment, rpc.mountd can respond to the NULL
procedure but not the MNT procedure in a timely manner causing
the MNT procedure to time out. The problem is the mount system
call returns EIO which causes the mount to fail, instead of
ETIMEDOUT, which would cause the mount to be retried.This patch sets the RPC_TASK_SOFT|RPC_TASK_TIMEOUT flags to
the rpc_call_sync() call in nfs_mount() which causes
ETIMEDOUT to be returned on timed out connections.Signed-off-by: Steve Dickson
Signed-off-by: Trond Myklebust
Cc: stable@vger.kernel.org
21 Mar, 2012
1 commit
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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
01 Feb, 2012
2 commits
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Signed-off-by: Trond Myklebust
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This patch replaces static "init_net" with nfs_client->net pointer in RPC
client creation calls.Signed-off-by: Stanislav Kinsbursky
Signed-off-by: Trond Myklebust
22 Dec, 2010
1 commit
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IS_ERR() already implies unlikely(), so it can be omitted here.
Signed-off-by: Tobias Klauser
Signed-off-by: Trond Myklebust
17 Dec, 2010
4 commits
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Now that all client-side XDR decoder routines use xdr_streams, there
should be no need to support the legacy calling sequence [rpc_rqst *,
__be32 *, RPC res *] anywhere. We can construct an xdr_stream in the
generic RPC code, instead of in each decoder function.This is a refactoring change. It should not cause different behavior.
Signed-off-by: Chuck Lever
Tested-by: J. Bruce Fields
Signed-off-by: Trond Myklebust -
Now that all client-side XDR encoder routines use xdr_streams, there
should be no need to support the legacy calling sequence [rpc_rqst *,
__be32 *, RPC arg *] anywhere. We can construct an xdr_stream in the
generic RPC code, instead of in each encoder function.Also, all the client-side encoder functions return 0 now, making a
return value superfluous. Take this opportunity to convert them to
return void instead.This is a refactoring change. It should not cause different behavior.
Signed-off-by: Chuck Lever
Tested-by: J. Bruce Fields
Signed-off-by: Trond Myklebust -
Clean up.
The UMNT request has a NULL response. There's no need to set up a
mountres structure for it.Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust -
Clean up.
The trend in the other XDR encoder functions is to BUG() when encoding
problems occur, since a problem here is always due to a local coding
error. Then, instead of a status, zero is unconditionally returned.Update the mount client XDR encoders to behave this way.
To finish the update, use the new-style be32_to_cpup() and
cpu_to_be32() macros, and compute the buffer sizes using raw integers
instead of sizeof(). This matches the conventions used in other XDR
functions.Signed-off-by: Chuck Lever
Tested-by: J. Bruce Fields
Signed-off-by: Trond Myklebust
11 Dec, 2010
1 commit
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After a few unsuccessful NFS mount attempts in which the client and
server cannot agree on an authentication flavor both support, the
client panics. nfs_umount() is invoked in the kernel in this case.Turns out nfs_umount()'s UMNT RPC invocation causes the RPC client to
write off the end of the rpc_clnt's iostat array. This is because the
mount client's nrprocs field is initialized with the count of defined
procedures (two: MNT and UMNT), rather than the size of the client's
proc array (four).The fix is to use the same initialization technique used by most other
upper layer clients in the kernel.Introduced by commit 0b524123, which failed to update nrprocs when
support was added for UMNT in the kernel.BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=24302
BugLink: http://bugs.launchpad.net/bugs/683938Reported-by: Stefan Bader
Tested-by: Stefan Bader
Cc: stable@kernel.org # >= 2.6.32
Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust
27 Oct, 2010
1 commit
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* 'for-2.6.37' of git://linux-nfs.org/~bfields/linux: (99 commits)
svcrpc: svc_tcp_sendto XPT_DEAD check is redundant
svcrpc: no need for XPT_DEAD check in svc_xprt_enqueue
svcrpc: assume svc_delete_xprt() called only once
svcrpc: never clear XPT_BUSY on dead xprt
nfsd4: fix connection allocation in sequence()
nfsd4: only require krb5 principal for NFSv4.0 callbacks
nfsd4: move minorversion to client
nfsd4: delay session removal till free_client
nfsd4: separate callback change and callback probe
nfsd4: callback program number is per-session
nfsd4: track backchannel connections
nfsd4: confirm only on succesful create_session
nfsd4: make backchannel sequence number per-session
nfsd4: use client pointer to backchannel session
nfsd4: move callback setup into session init code
nfsd4: don't cache seq_misordered replies
SUNRPC: Properly initialize sock_xprt.srcaddr in all cases
SUNRPC: Use conventional switch statement when reclassifying sockets
sunrpc/xprtrdma: clean up workqueue usage
sunrpc: Turn list_for_each-s into the ..._entry-s
...Fix up trivial conflicts (two different deprecation notices added in
separate branches) in Documentation/feature-removal-schedule.txt
02 Oct, 2010
1 commit
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Signed-off-by: Pavel Emelyanov
Signed-off-by: J. Bruce Fields
17 Sep, 2010
1 commit
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During boot, a random character is displayed instead of a tab.
Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust
10 Feb, 2010
1 commit
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It was recently pointed out that the NFSERR_SERVERFAULT error, which is
designed to inform the user of a serious internal error on the server, was
being mapped to an error value that is internal to the kernel.This patch maps it to the error EREMOTEIO, which is exported to userland
through errno.h.Signed-off-by: Trond Myklebust
Cc: stable@kernel.org
11 Aug, 2009
1 commit
10 Aug, 2009
2 commits
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After certain failure modes of an NFS mount, an NFS client should send
a MOUNTPROC_UMNT request to remove the just-added mount entry from the
server's mount table. While no-one should rely on the accuracy of the
server's mount table, sending a UMNT is simply being a good internet
neighbor.Since NFS mount processing is handled in the kernel now, we will need
a function in the kernel's mountd client that can post a MOUNTRPC_UMNT
request, in order to handle these failure modes.Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust -
Ensure that index i remains within array mnt_errtbl[] and mnt3_errtbl[].
Signed-off-by: Roel Kluin
Signed-off-by: Trond Myklebust
18 Jun, 2009
8 commits
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Clean up: Remove xdr_decode_fhstatus() and xdr_decode_fhstatus3(), now
that they are unused.Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust -
Solder xdr_stream-based XDR decoding functions into the in-kernel mountd
client that are more careful about checking data types and watching for
buffer overflows. The new MNT3 decoder includes support for auth-flavor
list decoding.The "_sz" macro for MNT3 replies was missing the size of the file handle.
I've added this back, and included the size of the auth flavor array.Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust -
Introduce an xdr_stream-based XDR decoder that can unpack the auth-
flavor list returned in a MNT3 reply.The nfs_mount() function's caller allocates an array, and passes the
size and a pointer to it. The decoder decodes all the flavors it can
into the array, and returns the number of decoded flavors.If the caller is not interested in the auth flavors, it can pass a
value of zero as the size of the pre-allocated array.Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust -
Introduce xdr_stream-based XDR file handle decoders to the in-kernel
mountd client. These are more careful than the existing decoder
functions about buffer overflows and data type and range checking.Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust -
Introduce data structures and xdr_stream-based decoding functions for
unmarshalling mountd status codes properly.Mountd version 3 uses specific standard error return codes that are
not errno values and not NFS3ERR_ values. These have a well-defined
standard mapping to local errno values. Introduce data structures
and a decoder function that map these status codes to local errno
values properly. This is new functionality (but not used yet).Version 1 mountd status values are defined by RFC 1094 as UNIX error
values (errno values). Errno values on heterogeneous systems do not
necessarily match each other. To avoid exposing possibly incorrect
errno values to upper layers, the current XDR decoder converts all
non-zero MNT version 1 status codes to -EACCES.The OpenGroup XNFS standard provides a mapping similar to but smaller
than the version 3 error codes. Implement a decoder that uses the XNFS
error codes, replacing the current decoder.For both mountd protocol versions, map unrecognized errors to -EACCES.
Finally we introduce a replacement data structure for mnt_fhstatus
at this time, which is used by the new XDR decoders. In addition to
documenting that the status value returned by the XDR decoders is
always an errno, this new structure will be expanded in subsequent
patches.Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust -
Clean up: remove xdr_encode_dirpath() now that it has been replaced.
Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust -
Check the length of the supplied dirpath, and see that it fits
properly in the RPC buffer.Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust -
Clean up: Relocate MNT program procedure number definitions to the
only file that uses them. Relocate the version number definitions,
which are shared, to nfs.h. Remove duplicate program number
definitions.Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust
24 Dec, 2008
2 commits
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If the admin has specified the "noresvport" option for an NFS mount
point, the kernel's NFS client uses an unprivileged source port for
the main NFS transport. The kernel's mountd client should use an
unprivileged port in this case as well.Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust -
Clean up: convert nfs_mount() to take a single data structure argument to make
it simpler to add more arguments.Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust
08 Oct, 2008
1 commit
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This patch fixes a regression that was introduced by the string based mounts.
nfs_mount() statically returns -EACCES for every error returned
by the remote mounted. This is incorrect because -EACCES is
an non-fatal error to the mount.nfs command. This error causes
mount.nfs to retry the mount even in the case when the exported
directory does not exist.This patch maps the errors returned by the remote mountd into
valid errno values, exactly how it was done pre-string based
mounts. By returning the correct errno enables mount.nfs
to do the right thing.Signed-off-by: Steve Dickson
[Trond.Myklebust@netapp.com: nfs_stat_to_errno() now correctly returns
negative errors, so remove the sign change.]
Signed-off-by: Trond Myklebust
24 Jun, 2008
1 commit
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Fix a sign issue in xdr_decode_fhstatus3()
Fix incorrect comparison in nfs_validate_mount_data()Signed-off-by: Trond Myklebust
07 Dec, 2007
1 commit
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By using the TASK_KILLABLE infrastructure, we can get rid of the 'intr'
mount option. We have to use _killable everywhere instead of _interruptible
as we get rid of rpc_clnt_sigmask/sigunmask.Signed-off-by: Liam R. Howlett
Signed-off-by: Matthew Wilcox
11 Jul, 2007
5 commits
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Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust -
Clean up white space and coding conventions.
Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust -
In preparation for supporting NFSv2 and NFSv3 mount option handling in the
kernel NFS client, convert mount_clnt.c to be a permanent part of the NFS
client, instead of built only when CONFIG_ROOT_NFS is enabled.In addition, we also replace the "struct sockaddr_in *" argument with
something more generic, to help support IPv6 at some later point.Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust -
A couple of callers just use a stringified IP address for the rpc client's
hostname. Move the logic for constructing this into rpc_create(), so it can
be shared.Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust -
Replace it with explicit calls to rpc_shutdown_client() or
rpc_destroy_client() (for the case of asynchronous calls).Signed-off-by: Trond Myklebust
01 May, 2007
1 commit
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The RPC buffer size estimation logic in net/sunrpc/clnt.c always
significantly overestimates the requirements for the buffer size.
A little instrumentation demonstrated that in fact rpc_malloc was never
allocating the buffer from the mempool, but almost always called kmalloc.To compute the size of the RPC buffer more precisely, split p_bufsiz into
two fields; one for the argument size, and one for the result size.Then, compute the sum of the exact call and reply header sizes, and split
the RPC buffer precisely between the two. That should keep almost all RPC
buffers within the 2KiB buffer mempool limit.And, we can finally be rid of RPC_SLACK_SPACE!
Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust
21 Oct, 2006
1 commit
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[pulled from Alexey's patch]
Signed-off-by: Al Viro
Acked-by: Trond Myklebust
Acked-by: Neil Brown
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
