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Message-Id: <1209062338.10668.3.camel@heimdal.trondhjem.org>
Date: Thu, 24 Apr 2008 14:38:58 -0400
From: Trond Myklebust <Trond.Myklebust@...app.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-nfs@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [GIT] Please pull the following NFS client updates for 2.6.25...
Hi Linus,
Please pull from the repository at
git pull git://git.linux-nfs.org/projects/trondmy/nfs-2.6.git
This will update the following files through the appended changesets.
Cheers,
Trond
----
fs/Kconfig | 70 +++++------
fs/lockd/clntproc.c | 184 +++++++++++++++++----------
fs/lockd/host.c | 20 ++--
fs/lockd/mon.c | 113 +++++++++++++----
fs/lockd/svc.c | 12 ++
fs/nfs/Makefile | 3 +-
fs/nfs/client.c | 23 ++++
fs/nfs/dir.c | 2 +-
fs/nfs/direct.c | 88 ++++++++-----
fs/nfs/file.c | 18 +---
fs/nfs/inode.c | 45 +++++++-
fs/nfs/internal.h | 13 +--
fs/nfs/namespace.c | 2 +-
fs/nfs/nfs2xdr.c | 113 ++++++++++-------
fs/nfs/nfs3xdr.c | 71 +++++++----
fs/nfs/nfs4proc.c | 39 ++++---
fs/nfs/nfs4state.c | 49 +++++++-
fs/nfs/nfs4xdr.c | 147 +++++++++++++---------
fs/nfs/read.c | 94 ++++++++------
fs/nfs/super.c | 147 +++++++++++++++-------
fs/nfs/unlink.c | 2 +-
fs/nfs/write.c | 207 ++++++++++++++++++-------------
include/linux/lockd/lockd.h | 18 ++--
include/linux/lockd/sm_inter.h | 1 +
include/linux/nfs_fs.h | 5 +-
include/linux/nfs_fs_sb.h | 10 ++
include/linux/nfs_xdr.h | 10 ++-
include/linux/sunrpc/auth.h | 17 ++-
include/linux/sunrpc/auth_gss.h | 1 +
include/linux/sunrpc/clnt.h | 9 +-
include/linux/sunrpc/sched.h | 41 +++----
include/linux/sunrpc/xprt.h | 10 ++-
net/sunrpc/Makefile | 2 +-
net/sunrpc/auth.c | 71 +++++++----
net/sunrpc/auth_generic.c | 177 ++++++++++++++++++++++++++
net/sunrpc/auth_gss/auth_gss.c | 105 ++++++++++------
net/sunrpc/auth_null.c | 3 +-
net/sunrpc/auth_unix.c | 59 ++++-----
net/sunrpc/clnt.c | 50 +++++---
net/sunrpc/rpcb_clnt.c | 2 +-
net/sunrpc/sched.c | 264 ++++++++++++++++++---------------------
net/sunrpc/xprt.c | 80 +++++++++----
net/sunrpc/xprtsock.c | 82 ++++++++-----
43 files changed, 1583 insertions(+), 896 deletions(-)
commit b48633bd086d21f4a2a5bea96c7e6c7ba58eb60c
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Tue Apr 22 16:47:55 2008 -0400
SUNRPC: Invalidate the RPCSEC_GSS session if the server dropped the request
RFC 2203 requires the server to drop the request if it believes the
RPCSEC_GSS context is out of sequence. The problem is that we have no way
on the client to know why the server dropped the request. In order to avoid
spinning forever trying to resend the request, the safe approach is
therefore to always invalidate the RPCSEC_GSS context on every major
timeout.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit a3dab293539031b0970585b9b355cebbc91ecbd4
Author: Adrian Bunk <bunk@...nel.org>
Date: Mon Apr 14 21:41:32 2008 +0300
make nfs_automount_list static
nfs_automount_list can now become static.
Signed-off-by: Adrian Bunk <bunk@...nel.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit daa7da5fd3040e08e3d7878cd0667c1f4cfd338a
Author: Jeff Layton <jlayton@...hat.com>
Date: Fri Apr 11 11:50:58 2008 -0400
NFS: remove duplicate flags assignment from nfs_validate_mount_data
Signed-off-by: Jeff Layton <jlayton@...hat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 63649bd7080a6a50fabcb1935f4b7c4e64155066
Author: Cyrill Gorcunov <gorcunov@...il.com>
Date: Thu Apr 17 20:42:09 2008 +0400
NFS - fix potential NULL pointer dereference v2
There is possible NULL pointer dereference if kstr[n]dup failed.
So fix them for safety.
Signed-off-by: Cyrill Gorcunov <gorcunov@...il.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit cd019f7517206a74d8cdb64d5c82b1f76be608cc
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Thu Apr 17 17:03:58 2008 -0400
SUNRPC: Don't change the RPCSEC_GSS context on a credential that is in use
When a server rejects our credential with an AUTH_REJECTEDCRED or similar,
we need to refresh the credential and then retry the request.
However, we do want to allow any requests that are in flight to finish
executing, so that we can at least attempt to process the replies that
depend on this instance of the credential.
The solution is to ensure that gss_refresh() looks up an entirely new
RPCSEC_GSS credential instead of attempting to create a context for the
existing invalid credential.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 7b6962b0a6000df48c8a5fd967d262f77704101b
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Thu Apr 17 16:53:01 2008 -0400
SUNRPC: Fix a race in gss_refresh_upcall()
If the downcall completes before we get the spin_lock then we currently
fail to refresh the credential.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 7c1d71cf56feebfb5b98219b9d11dfc3a2feca62
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Thu Apr 17 16:52:57 2008 -0400
SUNRPC: Don't disconnect more than once if retransmitting NFSv4 requests
NFSv4 requires us to ensure that we break the TCP connection before we're
allowed to retransmit a request. However in the case where we're
retransmitting several requests that have been sent on the same
connection, we need to ensure that we don't interfere with the attempt to
reconnect and/or break the connection again once it has been established.
We therefore introduce a 'connection' cookie that is bumped every time a
connection is broken. This allows requests to track if they need to force a
disconnection.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 636ac43318ce6939c1698fb67e714d421314ed71
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Thu Apr 17 14:00:47 2008 -0400
SUNRPC: Remove the unused export of xprt_force_disconnect
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 06b4b681ababc20596aa947595714710f557131d
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Wed Apr 16 16:51:38 2008 -0400
SUNRPC: remove XS_SENDMSG_RETRY
The condition for exiting from the loop in xs_tcp_send_request() should be
that we find we're not making progress (i.e. number of bytes sent is 0).
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit d2b831416365e8b1f27809b62d5e4260883956cc
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Mon Apr 14 18:13:37 2008 -0400
SUNRPC: Protect creds against early garbage collection
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit a2b2bb8822c78806930bbb4d4c5bb3ae69648fd0
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Tue Apr 8 16:02:17 2008 -0400
NFSv4: Attempt to use machine credentials in SETCLIENTID calls
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 7c67db3a8a98045744f06fcd6d8f476d9df0ba5c
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Mon Apr 7 20:50:11 2008 -0400
NFSv4: Reintroduce machine creds
We need to try to ensure that we always use the same credentials whenever
we re-establish the clientid on the server. If not, the server won't
recognise that we're the same client, and so may not allow us to recover
state.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 78ea323be6380a9313e87fe241809e912e8ae401
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Mon Apr 7 20:49:28 2008 -0400
NFSv4: Don't use cred->cr_ops->cr_name in nfs4_proc_setclientid()
With the recent change to generic creds, we can no longer use
cred->cr_ops->cr_name to distinguish between RPCSEC_GSS principals and
AUTH_SYS/AUTH_NULL identities. Replace it with the rpc_authops->au_name
instead...
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 441092415770ddec648800701895913c4bfd60c1
Author: Fred Isaman <iisaman@...i.umich.edu>
Date: Wed Apr 2 15:21:15 2008 +0300
nfs: fix printout of multiword bitfields
Benny points out that zero-padding of multiword bitfields is necessary,
and that delimiting each word is nice to avoid endianess confusion.
bhalevy: without zero padding output can be ambiguous. Also,
since the printed array of two 32-bit unsigned integers is not a
64-bit number, delimiting the output with a semicolon makes more sense.
Signed-off-by: Fred Isaman <iisaman@...i.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@...asas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 856dff3d3875bdc8b88e4a65779873af76776a69
Author: Benny Halevy <bhalevy@...asas.com>
Date: Mon Mar 31 17:39:06 2008 +0300
nfs: return negative error value from nfs{,4}_stat_to_errno
All use sites for nfs{,4}_stat_to_errno negate their return value.
It's more efficient to return a negative error from the stat_to_errno convertors
rather than negating its return value everywhere. This also produces slightly
smaller code.
Signed-off-by: Benny Halevy <bhalevy@...asas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit d11d10cc05c94a32632d6928d15a1034200dd9a5
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Wed Apr 2 14:44:05 2008 -0400
NLM/lockd: Ensure client locking calls use correct credentials
Now that we've added the 'generic' credentials (that are independent of the
rpc_client) to the nfs_open_context, we can use those in the NLM client to
ensure that the lock/unlock requests are authenticated to whoever
originally opened the file.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit c4d7c402b788b73dc24f1e54a57f89d3dc5eb7bc
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Tue Apr 1 20:26:52 2008 -0400
NFS: Remove the buggy lock-if-signalled case from do_setlk()
Both NLM and NFSv4 should be able to clean up adequately in the case where
the user interrupts the RPC call...
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 5f50c0c6d644d6c8180d9079c13c5d9de3adeb34
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Tue Apr 1 20:26:22 2008 -0400
NLM/lockd: Fix a race when cancelling a blocking lock
We shouldn't remove the lock from the list of blocked locks until the
CANCEL call has completed since we may be racing with a GRANTED callback.
Also ensure that we send an UNLOCK if the CANCEL request failed. Normally
that should only happen if the process gets hit with a fatal signal.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 6b4b3a752b3464f2fd9fe2837fb19270c23c1d6b
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Wed Apr 2 14:40:53 2008 -0400
NLM/lockd: Ensure that nlmclnt_cancel() returns results of the CANCEL call
Currently, it returns success as long as the RPC call was sent. We'd like
to know if the CANCEL operation succeeded on the server.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 8ec7ff74448f65ac963e330795d771ab14ec8408
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Fri Mar 28 16:04:51 2008 -0400
NLM: Remove the signal masking in nlmclnt_proc/nlmclnt_cancel
The signal masks have been rendered obsolete by the preceding patch.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit dc9d8d048168ff61c458bec06b28996cb90b182a
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Fri Mar 28 16:04:36 2008 -0400
NLM/lockd: convert __nlm_async_call to use rpc_run_task()
Peter Staubach comments:
> In the course of investigating testing failures in the locking phase of
> the Connectathon testsuite, I discovered a couple of things. One was
> that one of the tests in the locking tests was racy when it didn't seem
> to need to be and two, that the NFS client asynchronously releases locks
> when a process is exiting.
...
> The Single UNIX Specification Version 3 specifies that: "All locks
> associated with a file for a given process shall be removed when a file
> descriptor for that file is closed by that process or the process holding
> that file descriptor terminates.".
>
> This does not specify whether those locks must be released prior to the
> completion of the exit processing for the process or not. However,
> general assumptions seem to be that those locks will be released. This
> leads to more deterministic behavior under normal circumstances.
The following patch converts the NFSv2/v3 locking code to use the same
mechanism as NFSv4 for sending asynchronous RPC calls and then waiting for
them to complete. This ensures that the UNLOCK and CANCEL RPC calls will
complete even if the user interrupts the call, yet satisfies the
above request for synchronous behaviour on process exit.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 5e7f37a76fa5b604949020b7317962262812b2dd
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Tue Apr 1 18:58:49 2008 -0400
NLM/lockd: Add a reference counter to struct nlm_rqst
When we replace the existing synchronous RPC calls with asynchronous calls,
the reference count will be needed in order to allow us to examine the
result of the RPC call.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 536ff0f809b0f4d56e1c41e66768d330668e0a55
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Fri Apr 4 15:08:02 2008 -0400
NFSv4: Ensure we don't corrupt fl->fl_flags in nfs4_proc_unlck
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 4a9af59fee0701d9db99bc148d87b8852d6d6dd8
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Tue Apr 1 18:57:06 2008 -0400
NLM/lockd: Ensure we don't corrupt fl->fl_flags in nlmclnt_unlock()
Also fix up nlmclnt_lock() so that it doesn't pass modified versions of
fl->fl_flags to nlmclnt_cancel() and other helpers.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 1e799b673c6b82b336ab13c48b5651d511ca3000
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Fri Mar 21 16:19:41 2008 -0400
SUNRPC: Fix read ordering problems with req->rq_private_buf.len
We want to ensure that req->rq_private_buf.len is updated before
req->rq_received, so that call_decode() doesn't use an old value for
req->rq_rcv_buf.len.
In 'call_decode()' itself, instead of using task->tk_status (which is set
using req->rq_received) must use the actual value of
req->rq_private_buf.len when deciding whether or not the received RPC reply
is too short.
Finally ensure that we set req->rq_rcv_buf.len to zero when retrying a
request. A typo meant that we were resetting req->rq_private_buf.len in
call_decode(), and then clobbering that value with the old rq_rcv_buf.len
again in xprt_transmit().
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit c1d519312dcdf11532fed9f99a8ecc3547ffd9d6
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Mon Apr 7 13:20:54 2008 -0400
NFSv4: Only increment the sequence id if the server saw it
It is quite possible that the OPEN, CLOSE, LOCK, LOCKU,... compounds fail
before the actual stateful operation has been executed (for instance in the
PUTFH call). There is no way to tell from the overall status result which
operations were executed from the COMPOUND.
The fix is to move incrementing of the sequence id into the XDR layer,
so that we do it as we process the results from the stateful operation.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 35d05778e25ee16dbddb60331be0bc1309efba19
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Sat Apr 5 15:54:17 2008 -0400
NFSv4: Remove bogus call to nfs4_drop_state_owner() in _nfs4_open_expired()
There should be no need to invalidate a perfectly good state owner just
because of a stale filehandle. Doing so can cause the state recovery code
to break, since nfs4_get_renew_cred() and nfs4_get_setclientid_cred() rely
on finding active state owners.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit dbae4c73f08b8a7980cc912954ade3d4c1fb6147
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Mon Apr 14 14:54:53 2008 -0400
NFS: Ensure that rpc_run_task() errors are propagated back to the caller
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit c9d8f89d9816c1d16ada492aa547a4d692508c0d
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Tue Apr 15 16:56:39 2008 -0400
NFS: Ensure that the write code cleans up properly when rpc_run_task() fails
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit fdd1e74c89fe39259a29c494209abad63ff76f82
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Tue Apr 15 16:33:58 2008 -0400
NFS: Ensure that the read code cleans up properly when rpc_run_task() fails
In the case of readpage() we need to ensure that the pages get unlocked,
and that the error is flagged.
In the case of O_DIRECT, we need to ensure that the pages are all released.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 73e3302f60c0e11a0db0b34b903f591139c4f937
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Fri Apr 11 16:03:54 2008 -0400
NFS: Fix nfs_wb_page() to always exit with an error or a clean page
It is possible for nfs_wb_page() to sometimes exit with 0 return value, yet
the page is left in a dirty state.
For instance in the case where the server rebooted, and the COMMIT request
failed, then all the previously "clean" pages which were cached by the
server, but were not guaranteed to have been writted out to disk,
have to be redirtied and resent to the server.
The fix is to have nfs_wb_page_priority() check that the page is clean
before it exits...
This fixes a condition that triggers the BUG_ON(PagePrivate(page)) in
nfs_create_request() when we're in the nfs_readpage() path.
Also eliminate a redundant BUG_ON(!PageLocked(page)) while we're at it. It
turns out that clear_page_dirty_for_io() has the exact same test.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 080a1f148df0615f7a610e4776dd8f3fb706f54f
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Sat Apr 19 14:22:31 2008 -0400
SUNRPC: Don't attempt to destroy expired RPCSEC_GSS credentials..
..and always destroy using a 'soft' RPC call. Destroying GSS credentials
isn't mandatory; the server can always cope with a few credentials not
getting destroyed in a timely fashion.
This actually fixes a hang situation. Basically, some servers will decide
that the client is crazy if it tries to destroy an RPC context for which
they have sent an RPCSEC_GSS_CREDPROBLEM, and so will refuse to talk to it
for a while.
The regression therefor probably was introduced by commit
0df7fb74fbb709591301871a38aac7735a1d6583.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit b6ddf64ffe9d59577a9176856bb6fe69a539f573
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Thu Apr 17 18:52:19 2008 -0400
SUNRPC: Fix up xprt_write_space()
The rest of the networking layer uses SOCK_ASYNC_NOSPACE to signal whether
or not we have someone waiting for buffer memory. Convert the SUNRPC layer
to use the same idiom.
Remove the unlikely()s in xs_udp_write_space and xs_tcp_write_space. In
fact, the most common case will be that there is nobody waiting for buffer
space.
SOCK_NOSPACE is there to tell the TCP layer whether or not the cwnd was
limited by the application window. Ensure that we follow the same idiom as
the rest of the networking layer here too.
Finally, ensure that we clear SOCK_ASYNC_NOSPACE once we wake up, so that
write_space() doesn't keep waking things up on xprt->pending.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 24b74bf0c9e08cbda74d3c64af69ad402ed54e04
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Sat Apr 19 13:15:47 2008 -0400
SUNRPC: Fix a bug in call_decode()
call_verify() can, under certain circumstances, free the RPC slot. In that
case, our cached pointer 'req = task->tk_rqstp' is invalid. Bug was
introduced in commit 220bcc2afd7011b3e0569fc178331fa983c92c1b (SUNRPC:
Don't call xprt_release in call refresh).
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 0490a54a00c14212f22c5948c8c13a4553d745bd
Author: Chuck Lever <chuck.lever@...cle.com>
Date: Fri Mar 14 14:26:08 2008 -0400
lockd: introduce new function to encode private argument in SM_MON requests
Clean up: refactor the encoding of the opaque 16-byte private argument in
xdr_encode_mon(). This will be updated later to support IPv6 addresses.
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 2ca7754d4c96d68e1475690422a202ba5f0443d8
Author: Chuck Lever <chuck.lever@...cle.com>
Date: Fri Mar 14 14:26:01 2008 -0400
lockd: Fix up incorrect RPC buffer size calculations.
Switch to using the new mon_id encoder function.
Now that we've refactored the encoding of SM_MON requests, we've
discovered that the pre-computed buffer length maximums are
incorrect!
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit ea72a7f170e686baf00ceee57b6197bef686889c
Author: Chuck Lever <chuck.lever@...cle.com>
Date: Fri Mar 14 14:25:53 2008 -0400
lockd: document use of mon_id argument in SM_MON requests
Clean up: document the argument type that xdr_encode_common() is
marshalling by introducing a new function. The new function will replace
xdr_encode_common() in just a sec.
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 850c95fd07b63704d06909c9a081c51272d32db1
Author: Chuck Lever <chuck.lever@...cle.com>
Date: Fri Mar 14 14:25:46 2008 -0400
lockd: refactor SM_MON my_id argument encoder
Clean up: introduce a new XDR encoder specifically for the my_id
argument of SM_MON requests.
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 496951743100b2d2ccd8b268257e79425e489851
Author: Chuck Lever <chuck.lever@...cle.com>
Date: Fri Mar 14 14:25:39 2008 -0400
lockd: refactor SM_MON mon_name argument encoder
Clean up: introduce a new XDR encoder specifically for the mon_name
argument of SM_MON requests. This will be updated later to support IPv6
addresses in addition to IPv4 addresses.
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 099bd05f27ff24a3041d54e7ed42d2eb681484b9
Author: Chuck Lever <chuck.lever@...cle.com>
Date: Fri Mar 14 14:25:32 2008 -0400
lockd: Ensure NSM strings aren't longer than protocol allows
Introduce a special helper function to check the length of NSM strings
before they are placed on the wire.
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit f34ec991ae0f015f5cdc51ad46c3a317ffae2466
Author: Chuck Lever <chuck.lever@...cle.com>
Date: Fri Mar 14 14:18:45 2008 -0400
lockd: bring a few function declarations up to date
Clean-up: replace __inline__ and use up-to-date function declaration
conventions.
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit eb18860e1385bfc7f08fcb7ba362e4a5156c8324
Author: Chuck Lever <chuck.lever@...cle.com>
Date: Fri Mar 14 14:18:37 2008 -0400
NLM: NLM protocol version numbers are u32
Clean up: RPC protocol version numbers are u32. Make sure we use an
appropriate type for NLM version numbers when calling nlm_lookup_host().
Eliminates a harmless mixed sign comparison in nlm_host_lookup().
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 90d5b18061656993410dfd57ddb88aa5a3f34563
Author: Chuck Lever <chuck.lever@...cle.com>
Date: Fri Mar 14 14:18:30 2008 -0400
NLM: LOCKD fails to load if CONFIG_SYSCTL is not set
Bruce Fields says:
"By the way, we've got another config-related nit here:
http://bugzilla.linux-nfs.org/show_bug.cgi?id=156
You can build lockd without CONFIG_SYSCTL set, but then the module will
fail to load."
For now, disable the sysctl registration calls in lockd if CONFIG_SYSCTL
is not enabled. This allows the kernel to build properly if PROC_FS or
SYSCTL is not enabled, but an NFS client is desired.
In the long run, we would like to be able to build the kernel with an
NFS client but without lockd. This makes sense, for example, if you want
an NFSv4-only NFS client, as NFSv4 doesn't use NLM at all.
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 1e40316bc44851c5920490df01482ed862e4dbc4
Author: Chuck Lever <chuck.lever@...cle.com>
Date: Fri Mar 14 14:15:18 2008 -0400
SUNRPC: Add a default setting for CONFIG_SUNRPC_BIND34
Most distros will want support for rpcbind protocols 3 and 4 to default off
until they have integrated user-space support for the new rpcbind daemon
which supports IPv6 RPC services.
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 327a299d8abd0f4580098cbd6c58b0f017417005
Author: Chuck Lever <chuck.lever@...cle.com>
Date: Fri Mar 14 14:15:11 2008 -0400
SUNRPC: Update help Kconfig text
Clean up: refresh the help text for Kconfig items related to the sunrpc
module. Remove obsolete URLs, and make the language consistent among
the options.
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit ecfc555a8327ff09b07066d73a98c04115007eec
Author: Chuck Lever <chuck.lever@...cle.com>
Date: Fri Mar 14 14:14:56 2008 -0400
NFS: Always enable NFS direct I/O
Since O_DIRECT is a standard feature that is enabled in most distros,
eliminate the CONFIG_NFS_DIRECTIO build option, and change the
fs/nfs/Makefile to always build in the NFS direct I/O engine.
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 82d101d58a2312297ee79f96d44c1d8c7fe1032d
Author: Chuck Lever <chuck.lever@...cle.com>
Date: Fri Mar 14 14:10:37 2008 -0400
NFS: Show most mount options via nfs_show_options()
Display all mount options in /proc/mount which may be needed to reconstruct
a previous mount.
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Cc: Miklos Szeredi <miklos@...redi.hu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 3f8400d1f1f9d5fb175bdbf6236e564dde454f28
Author: Chuck Lever <chuck.lever@...cle.com>
Date: Fri Mar 14 14:10:30 2008 -0400
NFS: Save the values of the "mount*=" mount options
Save the value of the mountproto= mountport= mountvers= and mountaddr=
options so that these values can be displayed later via
nfs_show_options().
This preserves the intent of the original mount options, should the file
system need to be remounted based on what's displayed in /proc/mounts.
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Cc: Miklos Szeredi <miklos@...redi.hu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit f22d6d79fe227245363a8849ea8c85fe6c6598c3
Author: Chuck Lever <chuck.lever@...cle.com>
Date: Fri Mar 14 14:10:22 2008 -0400
NFS: Save the value of the "port=" mount option
During a remount based on the mount options displayed in /proc/mounts, we
want to preserve the original behavior of the mount request. Let's save
the original setting of the "port=" mount option in the mount's nfs_server
structure.
This allows us to simplify the default behavior of port setting for NFSv4
mounts: by default, NFSv2/3 mounts first try an RPC bind to determine the
NFS server's port, unless the user specified the "port=" mount option;
Users can force the client to skip the RPC bind by explicitly specifying
"port=<value>".
NFSv4, by contrast, assumes the NFS server port is 2049 and skips the RPC
bind, unless the user specifies "port=". Users can force an RPC bind for
NFSv4 by explicitly specifying "port=0".
I added a couple of extra comments to clarify this behavior.
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Cc: Miklos Szeredi <miklos@...redi.hu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 78fa701f341564e60461de91cd08ff5f7fb09b31
Author: Chuck Lever <chuck.lever@...cle.com>
Date: Fri Mar 14 14:10:15 2008 -0400
NFS: Fix up data types of fields in nfs_parsed_mount_options
Clean up: make data types of fields in nfs_parsed_mount_options more
consistent with other uses.
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 2d76743227028a26f884284aade03d1e43f4f249
Author: Chuck Lever <chuck.lever@...cle.com>
Date: Fri Mar 14 14:10:08 2008 -0400
NFS: numeric mount parameters are unsigned
Clean up: use %u instead of %d when displaying NFS mount options.
Nit: Fix reporting of "namlen=" option in nfs_show_mount_stats. The mount
option is called "namlen" without the "e".
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 7bda2cdf484a00e52b0ed925e99d4bf4696b2c7a
Author: Jeff Layton <jlayton@...hat.com>
Date: Fri Feb 22 14:50:01 2008 -0500
NFS: clean up short packet handling for NFSv4 readdir
Currently, the NFS readdir decoders have a workaround for buggy servers
that send an empty readdir response with the EOF bit unset. If the
server sends a malformed response in some cases, this workaround kicks
in and just returns an empty response rather than returning a proper
error to the caller.
This patch does 3 things:
1) have malformed responses with no entries return error (-EIO)
2) preserve existing workaround for servers that send empty
responses with the EOF marker unset.
3) Add some comments to clarify the logic in decode_readdir().
Signed-off-by: Jeff Layton <jlayton@...hat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 643f81115baca3630e544f6874567648b605efae
Author: Jeff Layton <jlayton@...hat.com>
Date: Fri Feb 22 14:50:00 2008 -0500
NFS: clean up short packet handling for NFSv3 readdir
Currently, the NFS readdir decoders have a workaround for buggy servers
that send an empty readdir response with the EOF bit unset. If the
server sends a malformed response in some cases, this workaround kicks
in and just returns an empty response rather than returning a proper
error to the caller.
This patch does 3 things:
1) have malformed responses with no entries return error (-EIO)
2) preserve existing workaround for servers that send empty
responses with the EOF marker unset.
3) Add some comments to clarify the logic in nfs3_xdr_readdirres().
Signed-off-by: Jeff Layton <jlayton@...hat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit caa02bd540618e4b447a1f776363ba27c4c79090
Author: Jeff Layton <jlayton@...hat.com>
Date: Fri Feb 22 14:49:59 2008 -0500
NFS: clean up short packet handling for NFSv2 readdir
Currently, the NFS readdir decoders have a workaround for buggy servers
that send an empty readdir response with the EOF bit unset. If the
server sends a malformed response in some cases, this workaround kicks
in and just returns an empty response rather than returning a proper
error to the caller.
This patch does 3 things:
1) have malformed responses with no entries return error (-EIO)
2) preserve existing workaround for servers that send empty
responses with the EOF marker unset.
3) Add some comments to clarify the logic in nfs_xdr_readdirres().
Signed-off-by: Jeff Layton <jlayton@...hat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 4af68bffac444a23f027e18ff244101e63b79227
Author: Fred Isaman <iisaman@...i.umich.edu>
Date: Wed Mar 19 11:54:04 2008 -0400
nfs: remove duplicate initializations of nfs_read_data field
Signed-off-by: Fred Isaman <iisaman@...i.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 6d884e8fc8114dc8877218f06a9a9a1d801901e4
Author: Fred <iisaman@...i.umich.edu>
Date: Wed Mar 19 11:24:38 2008 -0400
nfs: nfs_redirty_request
Both flush functions have the same error handling routine. Pull
it out as a function.
Signed-off-by: Fred Isaman <iisaman@...i.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 2f42b5d043ee271d1e5d30ecd77186b6c4d4e534
Author: Fred Isaman <iisaman@...i.umich.edu>
Date: Thu Mar 13 15:26:30 2008 +0200
NFS: fix encode_fsinfo_maxsz
The previous value was not taking into account space for bitmap array size.
Signed-off-by: Fred Isaman <iisaman@...i.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@...asas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 98a8e3239427051f5d44f2025b398bdcc3918f37
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Wed Mar 12 12:25:28 2008 -0400
SUNRPC: Add a helper rpcauth_lookup_generic_cred()
The NFSv4 protocol allows clients to negotiate security protocols on the
fly in the case where an administrator on the server changes the export
settings and/or in the case where we may have a filesystem migration event.
Instead of having the NFS client code cache credentials that are tied to a
particular AUTH method it is therefore preferable to have a generic credential
that can be converted into whatever AUTH is in use by the RPC client when
the read/write/sillyrename/... is put on the wire.
We do this by means of the new "generic" credential, which basically just
caches the minimal information that is needed to look up an RPCSEC_GSS,
AUTH_SYS, or AUTH_NULL credential.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 5c691044ecbca04dd558fca4c754121689fe1b34
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Wed Mar 12 16:21:07 2008 -0400
SUNRPC: Add an rpc_credop callback for binding a credential to an rpc_task
We need the ability to treat 'generic' creds specially, since they want to
bind instances of the auth cred instead of binding themselves.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 9a559efd4199c9812d339e23cc1b6055366b224f
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Wed Mar 12 12:24:49 2008 -0400
SUNRPC: Add a generic RPC credential
Add an rpc credential that is not tied to any particular auth mechanism,
but that can be cached by NFS, and later used to look up a cred for
whichever auth mechanism that turns out to be valid when the RPC call is
being made.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 4ccda2cdd8d156b6f49440653d5d6997e0facf97
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Wed Mar 12 16:20:55 2008 -0400
SUNRPC: Clean up rpcauth_bindcred()
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit af093835774931de898a9baf7b4041fa0d100f77
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Wed Mar 12 12:12:16 2008 -0400
SUNRPC: Fix RPCAUTH_LOOKUP_ROOTCREDS
The current RPCAUTH_LOOKUP_ROOTCREDS flag only works for AUTH_SYS
authentication, and then only as a special case in the code. This patch
removes the auth_sys special casing, and replaces it with generic code.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 25337fdc85951dfeac944f16cb565904c619077a
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Wed Mar 12 14:40:14 2008 -0400
SUNRPC: Fix a bug in rpcauth_lookup_credcache()
The hash bucket is for some reason always being set to zero.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 5e4424af9a1f062c6451681dff24a26e27741cc6
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Mon Feb 25 21:53:49 2008 -0800
SUNRPC: Remove now-redundant RCU-safe rpc_task free path
Now that we've tightened up the locking rules for RPC queue wakeups, we can
remove the RCU-safe kfree calls...
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit ff2d7db848f8db7cade39e55f78f86d77e0de01a
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Mon Feb 25 21:40:51 2008 -0800
SUNRPC: Ensure that we read all available tcp data
Don't stop until we run out of data, or we hit an error.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit f5fb7b06e4e4ab18326f067f4317b2016ce18af2
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Mon Feb 25 21:40:50 2008 -0800
SUNRPC: Eliminate the now-redundant rpc_start_wakeup()
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit eb276c0e10187702928aeaa133e1d3dbaf3eafc7
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Fri Feb 22 17:27:59 2008 -0500
SUNRPC: Switch tasks to using the rpc_waitqueue's timer function
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 36df9aae3158ce8fc4ede241169dc94ac910d884
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Wed Jul 18 16:18:52 2007 -0400
SUNRPC: Add a timer function to wait queues.
This is designed to replace the timeout timer in the individual rpc_tasks.
By putting the timer function in the wait queue, we will eventually be able
to reduce the total number of timers in use by the RPC subsystem.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit f6a1cc89309f0ae847a9b6fe418d1c4215e5bc55
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Fri Feb 22 17:06:55 2008 -0500
SUNRPC: Add a (empty for the moment) destructor for rpc_wait_queues
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 5d00837b90340af9106dcd93af75fd664c8eb87f
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Fri Feb 22 16:34:17 2008 -0500
SUNRPC: Run rpc timeout functions as callbacks instead of in softirqs
An audit of the current RPC timeout functions shows that they don't really
ever need to run in the softirq context. As long as the softirq is
able to signal that the wakeup is due to a timeout (which it can do by
setting task->tk_status to -ETIMEDOUT) then the callback functions can just
run as standard task->tk_callback functions (in the rpciod/process
context).
The only possible border-line case would be xprt_timer() for the case of
UDP, when the callback is used to reduce the size of the transport
congestion window. In testing, however, the effect of moving that update
to a callback would appear to be minor.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit fda1393938035559b417dd5b26b9cc293a7aee00
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Fri Feb 22 16:34:12 2008 -0500
SUNRPC: Convert users of rpc_wake_up_task to use rpc_wake_up_queued_task
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 96ef13b283934fbf60b732e6c4ce23e8babd0042
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Fri Feb 22 15:46:41 2008 -0500
SUNRPC: Add a new helper rpc_wake_up_queued_task()
In all cases where we currently use rpc_wake_up_task(), we almost always
know on which waitqueue the rpc_task is actually sleeping. This will allows
us to simplify the queue locking in a future patch.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit fde95c7554aa77f9a242f32b0b5f8f15395abf52
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Fri Feb 22 15:09:26 2008 -0500
SUNRPC: Clean up rpc_run_timer()
All RPC timeout callback functions are expected to wake the task up. We can
enforce this by moving the wakeup back into rpc_run_timer.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 101070ca2fe67186f5f5517b66cb4757b17f4e29
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Tue Feb 19 20:04:23 2008 -0500
NFS: Ensure that the asynchronous RPC calls complete on nfsiod.
We want to ensure that rpc_call_ops that involve mntput() are run on nfsiod
rather than on rpciod, so that they don't deadlock when the resulting
umount calls rpc_shutdown_client(). Hence we specify that read, write and
commit calls must complete on nfsiod.
Ditto for NFSv4 open, lock, locku and close asynchronous calls.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 5746006f1d17d9d5a3015051ea54de4341cb31f9
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Tue Feb 19 20:04:22 2008 -0500
NFS: Add an nfsiod workqueue
NFS post-rpciod cleanups often involve tasks that cannot be safely
performed within the rpciod context (due to deadlock concerns). We
therefore add a dedicated NFS workqueue that can perform tasks like
cleaning up state after an interrupted NFSv4 open() call, or calling
put_nfs_open_context() after an asynchronous read or write call.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 32bfb5c0f495dd88ef6bac4b76885d0820563739
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Tue Feb 19 20:04:21 2008 -0500
SUNRPC: Allow the rpc_release() callback to be run on another workqueue
A lot of the work done by the rpc_release() callback is inappropriate for
rpciod as it will often involve things like starting a new rpc call in
order to clean up state after an interrupted NFSv4 open() call, or
calls to mntput(), etc.
This patch allows the caller of rpc_run_task() to specify that the
rpc_release callback should run on a different workqueue than the default
rpciod_workqueue.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 383ba71938519959be8e0b598ec658f0c211ff45
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Tue Feb 19 20:04:20 2008 -0500
NFS: Fix a deadlock with lazy umount
We can't allow rpc callback functions like task->tk_ops->rpc_call_prepare()
and task->tk_ops->rpc_call_done() to call mntput() in any way, since
that will cause a deadlock when the call to rpc_shutdown_client() attempts
to wait on 'task' to complete.
We can avoid the above deadlock by moving calls to mntput to
task->tk_ops->rpc_release() callback, since at that time the task will be
marked as completed, and so rpc_shutdown_client won't attempt to wait on
it.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 4b5621f6b127bce9218998c187bd25bf7f9fc371
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Mon Feb 25 15:56:29 2008 -0800
NFS: Fix an f_mode/f_flags confusion in fs/nfs/write.c
O_SYNC is stored in filp->f_flags.
Thanks to Al Viro for pointing out the bug.
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit cbc20059259edee4ea24c923e6627c394830c972
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date: Thu Feb 14 11:11:30 2008 -0500
SUNRPC: Declare as const the rpc_message arguments to rpc_call_sync/async
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
commit 2785259631697ebb0749a3782cca206e2e542939
Author: Nick Piggin <npiggin@...e.de>
Date: Mon Feb 4 23:48:37 2008 -0800
nfs: use GFP_NOFS preloads for radix-tree insertion
NFS should use GFP_NOFS mode radix tree preloads rather than GFP_ATOMIC
allocations at radix-tree insertion-time. This is important to reduce the
atomic memory requirement.
Signed-off-by: Nick Piggin <npiggin@...e.de>
Cc: Trond Myklebust <trond.myklebust@....uio.no>
Cc: "J. Bruce Fields" <bfields@...ldses.org>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
--
Trond Myklebust
Linux NFS client maintainer
NetApp
Trond.Myklebust@...app.com
www.netapp.com
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