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NFS4ERR_FILE_OPEN is return by the server when an operation cannot be
performed because the file is currently open and local (to the server)
semantics prohibit the operation while the file is open.
A typical case is a RENAME operation on an MS-Windows platform, which
prevents rename while the file is open.
While it is possible that such a condition is transitory, it is also
very possible that the file will be held open for an extended period
of time thus preventing the operation.
The current behaviour of Linux/NFS is to retry the operation
indefinitely. This is not appropriate - we do not expect a rename to
take an arbitrary amount of time to complete.
Rather, and error should be returned. The most obvious error code
would be EBUSY, which is a legal at least for 'rename' and 'unlink',
and accurately captures the reason for the error.
This patch allows a few retries until about 2 seconds have elapsed,
then returns EBUSY.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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The d_instantiate(new_dentry, NULL) is superfluous, the dentry is
already negative. Rehashing this dummy dentry isn't needed either,
d_move() works fine on an unhashed target.
The re-checking for busy after a failed nfs_sillyrename() is bogus
too: new_dentry->d_count < 2 would be a bug here.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Move unhashing the target to after the check for existence and being a
non-directory.
If renaming a directory then the VFS already unhashes the target if it
is not busy. If it's busy then acquiring more references during the
rename makes no difference.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Comments are wrong or out of date. In particular d_drop() doesn't
free the inode it just unhashes the dentry. And if target is a
directory then it is not checked for being busy.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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VFS already checks if both source and target are directories.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Introduce soft connect behavior for UDP transports. In this case, a
major timeout returns ETIMEDOUT instead of EIO.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Currently, if a remote RPC service is unreachable, an RPC ping will
hang until the underlying transport connect attempt times out. A more
desirable behavior might be to have the ping fail immediately so upper
layers can recover appropriately.
In the case of an NFS mount, for instance, this would mean the
mount(2) system call could fail immediately if the server isn't
listening, rather than hanging uninterruptibly for more than 3
minutes.
Change rpc_ping() so that it fails immediately for connection-oriented
transports. rpc_create() will then fail immediately for such
transports if an RPC ping was requested.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Autobinding is handled by the rpciod process, not in user processes
that are generating regular RPC requests. Thus autobinding is usually
not affected by signals targetting user processes, such as KILL or
timer expiration events.
In addition, an RPC request generated by a user process that has
RPC_TASK_SOFTCONN set and needs to perform an autobind will hang if
the remote rpcbind service is not available.
For rpcbind queries on connection-oriented transports, let's use the
new soft connect semantic to return control to the user's process
quickly, if the kernel's rpcbind client can't connect to the remote
rpcbind service.
Logic is introduced in call_bind_status() to handle connection errors
that occurred during an asynchronous rpcbind query. The logic
abandons the rpcbind query if the RPC request has SOFTCONN set, and
retries after a few seconds in the normal case.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Use TCP with the soft connect semantic for local rpcbind upcalls so
the kernel can detect immediately if the local rpcbind daemon is not
running.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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The kernel's rpcbind client creates and deletes an rpc_clnt and its
underlying transport socket for every upcall to the local rpcbind
daemon.
When starting a typical NFS server on IPv4 and IPv6, the NFS service
itself does three upcalls (one per version) times two upcalls (one
per transport) times two upcalls (one per address family), making 12,
plus another one for the initial call to unregister previous NFS
services. Starting the NLM service adds an additional 13 upcalls,
for similar reasons.
(Currently the NFS service doesn't start IPv6 listeners, but it will
soon enough).
Instead, let's create an rpc_clnt for rpcbind upcalls during the
first local rpcbind query, and cache it. This saves the overhead of
creating and destroying an rpc_clnt and a socket for every upcall.
The new logic also prevents the kernel from attempting an RPCB_SET or
RPCB_UNSET if it knows from the start that the local portmapper does
not support rpcbind protocol version 4. This will cut down on the
number of rpcbind upcalls in legacy environments.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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Clean up: At one point, rpcb_local_clnt() handled IPv6 loopback
addresses too, but it doesn't any more; only IPv4 loopback is used
now. Get rid of the @addr and @addrlen arguments to
rpcb_local_clnt().
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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The kernel sometimes makes RPC calls to services that aren't running.
Because the kernel's RPC client always assumes the hard retry semantic
when reconnecting a connection-oriented RPC transport, the underlying
reconnect logic takes a long while to time out, even though the remote
may have responded immediately with ECONNREFUSED.
In certain cases, like upcalls to our local rpcbind daemon, or for NFS
mount requests, we'd like the kernel to fail immediately if the remote
service isn't reachable. This allows another transport to be tried
immediately, or the pending request can be abandoned quickly.
Introduce a per-request flag which controls how call_transmit_status()
behaves when request transmission fails because the server cannot be
reached.
We don't want soft connection semantics to apply to other errors. The
default case of the switch statement in call_transmit_status() no
longer falls through; the fall through code is copied to the default
case, and a "break;" is added.
The transport's connection re-establishment timeout is also ignored for
such requests. We want the request to fail immediately, so the
reconnect delay is skipped. Additionally, we don't want a connect
failure here to further increase the reconnect timeout value, since
this request will not be retried.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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The success case, where task->tk_status == 0, is by far the most
frequent case in call_transmit_status().
The default: arm of the switch statement in call_transmit_status()
handles the 0 case. default: was moved close to the top of the switch
statement in call_transmit_status() under the theory that the compiler
places object code for the earliest arms of a switch statement first,
making the CPU do less work.
The default: arm of a switch statement, however, is executed only
after all the other cases have been checked. Even if the compiler
rearranges the object code, the default: arm is the "last resort",
meaning all of the other cases have been explicitly exhausted. That
makes the current arrangement about as inefficient as it gets for the
common case.
To fix this, add an explicit check for zero before the switch
statement. That forces the compiler to do the zero check first, no
matter what optimizations it might try to do to the switch statement.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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When the "rsize=" or "wsize=" mount options are not specified,
text-based mounts have slightly different behavior than legacy binary
mounts. Text-based mounts use the smaller of the server's maximum
and the client's maximum, but binary mounts use the smaller of the
server's _preferred_ size and the client's maximum.
This difference is actually pretty subtle. Most servers advertise
the same value as their maximum and their preferred transfer size, so
the end result is the same in most cases.
The reason for this difference is that for text-based mounts, if
r/wsize are not specified, they are set to the largest value supported
by the client. For legacy mounts, the values are set to zero if these
options are not specified.
nfs_server_set_fsinfo() can negotiate the transfer size defaults
correctly in any case. There's no need to specify any particular
value as default in the text-based option parsing logic.
Note that nfs4 doesn't use nfs_server_set_fsinfo(), but the mount.nfs4
command does set rsize and wsize to 0 if the user didn't specify these
options. So, make the same change for text-based NFSv4 mounts.
Thanks to James Pearson <james-p@moving-picture.com> for reporting and
diagnosing the problem.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Recent changes to snprintf() introduced the %pI6c formatter, which can
display an IPv6 address with standard shorthanding. Use this new
formatter when displaying IPv6 server addresses in /proc/mounts.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Recent changes to snprintf() introduced the %pI6c formatter, which can
display an IPv6 address with standard shorthanding. Using a
shorthanded address can save us a few bytes of memory for each stored
presentation address, or a few bytes on the wire when sending these in
a universal address.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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reorder nfs4_sequence_args to remove 8 bytes of padding on 64 bit
builds.
The size of this structure drops to 24 bytes from 32 and reduces the
text size of nfs.ko.
On my x86_64 size reports
text data bss
2.6.32-rc5 200996 8512 432 209940 33414 nfs.ko
+patch 200884 8512 432 209828 333a4 nfs.ko
Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Solaris uses netids as values for the proto= option, so that when
someone specifies "tcp6" they get traffic over TCP + IPv6. Until
recently, this has never really been an issue for Linux since it didn't
support NFS over IPv6. The netid and the protocol name were generally
always the same (modulo any strange configuration in /etc/netconfig).
The solaris manpage documents their proto= option as:
proto= _netid_ | rdma
This patch is intended to bring Linux closer to how the Solaris proto=
option works, by declaring a static netid mapping in the kernel and
converting the proto= and mountproto= options to follow it and display
the proper values in /proc/mounts.
Much of this functionality will need to be provided by a userspace
mount.nfs patch. Chuck Lever has a patch to change mount.nfs in
the same way. In principle, we could do *all* of this in userspace but
that would mean that the options in /proc/mounts may not match the
options used by userspace.
The alternative to the static mapping here is to add a mechanism to
upcall to userspace for netid's. I'm not opposed to that option, but
it'll probably mean more overhead (and quite a bit more code). Rather
than shoot for that at first, I figured it was probably better to
start simply.
Comments welcome.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Fix another 'sparse' warning in fs/nfs/nfs4proc.c
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Fix two 'sparse' warnings in fs/nfs/dns_resolve.c
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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The nfs4_state_manager should not be looking at the error values when
deciding whether or not to loop round in order to handle a higher priority
state recovery task. It should rather be looking at the clp->cl_state.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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If our lease expires, and the server reboots while we're recovering, we
need to be able to wait until the grace period is over.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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nfs4_recovery_handle_error() will correctly handle errors such as
NFS4ERR_CB_PATH_DOWN, however because they are still passed back to the
main loop in nfs4_state_manager(), they can cause the latter to exit
prematurely.
Fix this by letting nfs4_recovery_handle_error() change the error value in
cases where there is no action required by the caller.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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In practice, we need to ensure that we call nfs4_state_end_reclaim_reboot
in 2 cases:
- If we lose the lease while we were reclaiming state
OR
- After we're done with reboot recovery
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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The nfsv4 state manager could potentially deadlock inside
__nfs_inode_return_delegation() if the server reboots, so that the calls to
nfs_msync_inode() end up waiting on state recovery to complete.
Also ensure that if a server reboot or network partition causes us to have
to stop returning delegations, that NFS4CLNT_DELEGRETURN is set so that
the state manager can resume any outstanding delegation returns after it
has dealt with the state recovery situation.
Finally, ensure that the state manager doesn't wait for the DELEGRETURN
call to complete. It doesn't need to, and that too can cause a deadlock.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Subject: [PATCH] nfs: fix acl decoding
Commit 28f566942c6b1d929f5e240e69e7081b77b238d3 "NFS: use dynamically
computed compound_hdr.replen for xdr_inline_pages offset" accidentally
changed the amount of space to allow for the acl reply, resulting in an
IO error on attempts to get an acl.
Reported-by: Paul Rudin <paul@rudin.co.uk>
Cc: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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It is possible for rpcauth_destroy_credcache() to cause the rpc credentials
to be unhashed while put_rpccred is waiting for the rpc_credcache_lock on
another cpu. Should this happen, then we can end up calling
hlist_del_rcu(&cred->cr_hash) a second time in put_rpccred, thus causing
list corruption.
Should the credential actually be hashed, it is also possible for
rpcauth_lookup_credcache to find and reference it before we get round to
unhashing it. In this case, the call to rpcauth_unhash_cred will fail, and
so we should just exit without destroying the cred.
Reported-by: Neil Brown <neilb@suse.de>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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If the XPRT_CLOSE_WAIT flag is set, we need to ensure that we call
xprt->ops->close() while holding xprt_lock_write() before we can
start reconnecting.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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None of the code in nfs_umount_begin() or nfs_remount() has any BKL
dependency.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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request_region should be used with release_region, not request_mem_region.
Geert Uytterhoeven pointed out that in the case of drivers/video/gbefb.c,
the problem is actually the other way around; request_mem_region should be
used instead of request_region.
The semantic patch that finds/fixes this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r1@
expression start;
@@
request_region(start,...)
@b1@
expression r1.start;
@@
request_mem_region(start,...)
@depends on !b1@
expression r1.start;
expression E;
@@
- release_mem_region
+ release_region
(start,E)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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TXx9 SPI bit rate is calculated by:
fBR = (spi-baseclk) / (n + 1)
Fix calculation of min_speed_hz, max_speed_hz and n.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
mfd: Correct WM831X_MAX_ISEL_VALUE
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These laptops often leave i8042 in a wierd state resulting in non-
operational touchpad and keyboard.
Signed-off-by: Anisse Astier <anisse@astier.eu>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'for-linus' of git://neil.brown.name/md:
md: revert incorrect fix for read error handling in raid1.
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Jon confirms that recent modprobe will look in /proc/cmdline, so these
cmdline options can still be used.
See http://bugzilla.kernel.org/show_bug.cgi?id=14164
Reported-by: Adam Williamson <awilliam@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
MIPS: RB532: Fix devices.c compilation.
MIPS: Fix MIPS I build.
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* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
[PATCH] rc32434_wdt: fix compilation failure
[WATCHDOG] rc32434_wdt.c: use resource_size()
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On the parisc architecture we face for each and every loaded kernel module
this kernel "badness warning":
sysfs: cannot create duplicate filename '/module/ac97_bus/sections/.text'
Badness at fs/sysfs/dir.c:487
Reason for that is, that on parisc all kernel modules do have multiple
.text sections due to the usage of the -ffunction-sections compiler flag
which is needed to reach all jump targets on this platform.
An objdump on such a kernel module gives:
Sections:
Idx Name Size VMA LMA File off Algn
0 .note.gnu.build-id 00000024 00000000 00000000 00000034 2**2
CONTENTS, ALLOC, LOAD, READONLY, DATA
1 .text 00000000 00000000 00000000 00000058 2**0
CONTENTS, ALLOC, LOAD, READONLY, CODE
2 .text.ac97_bus_match 0000001c 00000000 00000000 00000058 2**2
CONTENTS, ALLOC, LOAD, READONLY, CODE
3 .text 00000000 00000000 00000000 000000d4 2**0
CONTENTS, ALLOC, LOAD, READONLY, CODE
...
Since the .text sections are empty (size of 0 bytes) and won't be
loaded by the kernel module loader anyway, I don't see a reason
why such sections need to be listed under
/sys/module/<module_name>/sections/<section_name> either.
The attached patch does solve this issue by not exporting section
names which are empty.
This fixes bugzilla http://bugzilla.kernel.org/show_bug.cgi?id=14703
Signed-off-by: Helge Deller <deller@gmx.de>
CC: rusty@rustcorp.com.au
CC: akpm@linux-foundation.org
CC: James.Bottomley@HansenPartnership.com
CC: roland@redhat.com
CC: dave@hiauly1.hia.nrc.ca
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
regulator: Initialise wm831x structure pointor for ISINK driver
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The version that made it into mainline missed the initialisation of the
chip handle.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
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We should now use dev_set_drvdata to set the driver driver_data field.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/747/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Broken by d63c63e889bbeeaa461a8addf1245f89f3ce4ece (lmo) rsp.
f1e39a4a616cd9981a9decfd5332fd07a01abb8b (kernel.org).
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/746/
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git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
* 'fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6:
[ARM] pxamci: call mmc_remove_host() before freeing resources
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mmc_remove_host() will cause the mmc core to switch off the bus power by
eventually calling pxamci_set_ios(). This function uses the regulator or
the GPIO which have been freed already.
This causes the following Oops on module unload.
[ 49.519649] Unable to handle kernel paging request at virtual address 30303a70
[ 49.526878] pgd = c7084000
[ 49.529563] [30303a70] *pgd=00000000
[ 49.533136] Internal error: Oops: 5 [#1]
[ 49.537025] last sysfs file: /sys/devices/platform/pxa27x-ohci/usb1/1-1/1-1:1.0/host0/target0:0:0/0:0:0:0/scsi_level
[ 49.547471] Modules linked in: pxamci(-) eeti_ts
[ 49.552061] CPU: 0 Not tainted (2.6.32-rc8 #322)
[ 49.557001] PC is at regulator_is_enabled+0x3c/0xbc
[ 49.561846] LR is at regulator_is_enabled+0x30/0xbc
[ 49.566691] pc : [<c01a2448>] lr : [<c01a243c>] psr: 60000013
[ 49.566702] sp : c7083e70 ip : 30303a30 fp : 00000000
[ 49.578093] r10: c705e200 r9 : c7082000 r8 : c705e2e0
[ 49.583280] r7 : c7061340 r6 : c7061340 r5 : c7083e70 r4 : 00000000
[ 49.589759] r3 : c04dc434 r2 : c04dc434 r1 : c03eecea r0 : 00000047
[ 49.596241] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
[ 49.603329] Control: 0000397f Table: a7084018 DAC: 00000015
[ 49.609031] Process rmmod (pid: 1101, stack limit = 0xc7082278)
[ 49.614908] Stack: (0xc7083e70 to 0xc7084000)
[ 49.619238] 3e60: c7082000 c703c4f8 c705ea00 c04f4074
[ 49.627366] 3e80: 00000000 c705e3a0 ffffffff c0247ddc c70361a0 00000000 c705e3a0 ffffffff
[ 49.635499] 3ea0: c705e200 bf006400 c78c4f00 c705e200 c705e3a0 ffffffff c705e200 ffffffff
[ 49.643633] 3ec0: c04d8ac8 c02476d0 ffffffff c0247c60 c705e200 c0248678 c705e200 c0249064
[ 49.651765] 3ee0: ffffffff bf006204 c04d8ad0 c04d8ad0 c04d8ac8 bf007490 00000880 c00440c4
[ 49.659898] 3f00: 0000b748 c01c5708 bf007490 c01c44c8 c04d8ac8 c04d8afc bf007490 c01c4570
[ 49.668031] 3f20: bf007490 bf00750c c04f4258 c01c37a4 00000000 bf00750c c7083f44 c007b014
[ 49.676162] 3f40: 4000d000 6d617870 08006963 00000001 00000000 c7085000 00000001 00000000
[ 49.684287] 3f60: 4000d000 c7083f8c 00000001 bea01a54 00005401 c7ab1400 c00440c4 00082000
[ 49.692420] 3f80: bf00750c 00000880 c7083f8c 00000000 4000cfa8 00000000 00000880 bea01cc8
[ 49.700552] 3fa0: 00000081 c0043f40 00000000 00000880 bea01cc8 00000880 00000006 00000000
[ 49.708677] 3fc0: 00000000 00000880 bea01cc8 00000081 00000097 0000cca4 0000b748 00000000
[ 49.716802] 3fe0: 4001a4f0 bea01cc0 00018bf4 4001a4fc 20000010 bea01cc8 a063e021 a063e421
[ 49.724958] [<c01a2448>] (regulator_is_enabled+0x3c/0xbc) from [<c0247ddc>] (mmc_regulator_set_ocr+0x14/0xd8)
[ 49.734836] [<c0247ddc>] (mmc_regulator_set_ocr+0x14/0xd8) from [<bf006400>] (pxamci_set_ios+0xd8/0x17c [pxamci])
[ 49.745044] [<bf006400>] (pxamci_set_ios+0xd8/0x17c [pxamci]) from [<c02476d0>] (mmc_power_off+0x50/0x58)
[ 49.754555] [<c02476d0>] (mmc_power_off+0x50/0x58) from [<c0247c60>] (mmc_detach_bus+0x68/0xc4)
[ 49.763207] [<c0247c60>] (mmc_detach_bus+0x68/0xc4) from [<c0248678>] (mmc_stop_host+0xd4/0x1bc)
[ 49.771944] [<c0248678>] (mmc_stop_host+0xd4/0x1bc) from [<c0249064>] (mmc_remove_host+0xc/0x20)
[ 49.780681] [<c0249064>] (mmc_remove_host+0xc/0x20) from [<bf006204>] (pxamci_remove+0xc8/0x174 [pxamci])
[ 49.790211] [<bf006204>] (pxamci_remove+0xc8/0x174 [pxamci]) from [<c01c5708>] (platform_drv_remove+0x1c/0x24)
[ 49.800164] [<c01c5708>] (platform_drv_remove+0x1c/0x24) from [<c01c44c8>] (__device_release_driver+0x7c/0xc4)
[ 49.810110] [<c01c44c8>] (__device_release_driver+0x7c/0xc4) from [<c01c4570>] (driver_detach+0x60/0x8c)
[ 49.819535] [<c01c4570>] (driver_detach+0x60/0x8c) from [<c01c37a4>] (bus_remove_driver+0x90/0xcc)
[ 49.828452] [<c01c37a4>] (bus_remove_driver+0x90/0xcc) from [<c007b014>] (sys_delete_module+0x1d8/0x254)
[ 49.837891] [<c007b014>] (sys_delete_module+0x1d8/0x254) from [<c0043f40>] (ret_fast_syscall+0x0/0x28)
[ 49.847145] Code: eb06c53a e596c030 e1a0500d e59f106c (e59c0040)
[ 49.853566] ---[ end trace b5fa66a00cea142f ]---
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Reported-by: Sven Neumann <s.neumann@raumfeld.com>
Cc: Pierre Ossman <pierre@ossman.eu>
Cc: linux-mmc@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: stable@kernel.org
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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