Commit Graph

9282 Commits

Author SHA1 Message Date
Chuck Lever
c7b2cae8a6 [PATCH] RPC: separate TCP and UDP write space callbacks
Split the socket write space callback function into a TCP version and UDP
 version, eliminating one dependence on the "xprt->stream" variable.

 Keep the common pieces of this path in xprt.c so other transports can use
 it too.

 Test-plan:
 Write-intensive workload on a single mount point.

 Version: Thu, 11 Aug 2005 16:07:51 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:38:28 -04:00
Chuck Lever
55aa4f58aa [PATCH] RPC: client-side transport switch cleanup
Clean-up: change some comments to reflect the realities of the new RPC
 transport switch mechanism.  Get rid of unused xprt_receive() prototype.

 Also, organize function prototypes in xprt.h by usage and scope.

 Test-plan:
 Compile kernel with CONFIG_NFS enabled.

 Version: Thu, 11 Aug 2005 16:07:21 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:38:26 -04:00
Chuck Lever
44fbac2288 [PATCH] RPC: Add helper for waking tasks pending on a transport
Clean-up: remove only reference to xprt->pending from the socket transport
 implementation.  This makes a cleaner interface for other transport
 implementations as well.

 Test-plan:
 Compile kernel with CONFIG_NFS enabled.

 Version: Thu, 11 Aug 2005 16:06:52 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:38:24 -04:00
Chuck Lever
86b9f57dfd [PATCH] RPC: Eliminate socket.h includes in RPC client
Clean-up: get rid of unnecessary socket.h and in.h includes in the generic
 parts of the RPC client.

 Test-plan:
 Compile kernel with CONFIG_NFS enabled.

 Version: Thu, 11 Aug 2005 16:06:23 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:38:23 -04:00
Chuck Lever
2226feb6bc [PATCH] RPC: rename the sockstate field
Clean-up: get rid of a name reference to sockets in the generic parts of the
 RPC client by renaming the sockstate field in the rpc_xprt structure.

 Test-plan:
 Compile kernel with CONFIG_NFS enabled.

 Version: Thu, 11 Aug 2005 16:05:53 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:38:21 -04:00
Chuck Lever
5dc07727f8 [PATCH] RPC: Rename xprt_lock
Clean-up: Replace the xprt_lock with something more aptly named.  This lock
 single-threads the XID and request slot reservation process.

 Test-plan:
 Compile kernel with CONFIG_NFS enabled.

 Version: Thu, 11 Aug 2005 16:05:26 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:38:19 -04:00
Chuck Lever
4a0f8c04f2 [PATCH] RPC: Rename sock_lock
Clean-up: replace a name reference to sockets in the generic parts of the RPC
 client by renaming sock_lock in the rpc_xprt structure.

 Test-plan:
 Compile kernel with CONFIG_NFS enabled.

 Version: Thu, 11 Aug 2005 16:05:00 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:38:17 -04:00
Chuck Lever
b4b5cc85ed [PATCH] RPC: Reduce stack utilization in xs_sendpages
Reduce stack utilization of the RPC socket transport's send path.

 A couple of unlikely()s are added to ensure the compiler places the
 tail processing at the end of the csect.

 Test-plan:
 Millions of fsx operations.  Performance characterization such as "sio" or
 "iozone".

 Version: Thu, 11 Aug 2005 16:04:30 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:38:16 -04:00
Chuck Lever
9903cd1c27 [PATCH] RPC: transport switch function naming
Introduce block header comments and a function naming convention to the
 socket transport implementation.  Provide a debug setting for transports
 that is separate from RPCDBG_XPRT.  Eliminate xprt_default_timeout().

 Provide block comments for exposed interfaces in xprt.c, and eliminate
 the useless obvious comments.

 Convert printk's to dprintk's.

 Test-plan:
 Compile kernel with CONFIG_NFS enabled.

 Version: Thu, 11 Aug 2005 16:04:04 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:38:14 -04:00
Chuck Lever
a246b0105b [PATCH] RPC: introduce client-side transport switch
Move the bulk of client-side socket-specific code into a separate source
 file, net/sunrpc/xprtsock.c.

 Test-plan:
 Millions of fsx operations.  Performance characterization such as "sio" or
 "iozone".  Destructive testing (unplugging the network temporarily, server
 reboots).  Connectathon with v2, v3, and v4.

 Version: Thu, 11 Aug 2005 16:03:38 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:38:12 -04:00
Chuck Lever
094bb20b9f [PATCH] RPC: extract socket logic common to both client and server
Clean-up: Move some code that is common to both RPC client- and server-side
 socket transports into its own source file, net/sunrpc/socklib.c.

 Test-plan:
 Compile kernel with CONFIG_NFS enabled.  Millions of fsx operations over
 UDP, client and server.  Connectathon over UDP.

 Version: Thu, 11 Aug 2005 16:03:09 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:38:11 -04:00
Chuck Lever
602f83273c [PATCH] RPC: portmapper doesn't need a reserved port
The in-kernel portmapper does not require a reserved port for making
 bind queries.

 Test-plan:
 Tens of runs of the Connectathon locking suite with TCP and UDP
 against several other NFS server implementations using NFSv3,
 not NFSv4 (which doesn't require rpcbind).

 Version: Thu, 11 Aug 2005 16:02:43 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:38:08 -04:00
Chuck Lever
eab5c084b8 [PATCH] NFS: use a constant value for TCP retransmit timeouts
Implement a best practice: don't use exponential backoff when computing
 retransmit timeout values on TCP connections, but simply retransmit
 at regular intervals.

 This also fixes a bug introduced when xprt_reset_majortimeo() was added.

 Test-plan:
 Enable RPC debugging and watch timeout behavior on a NFS/TCP mount.

 Version: Thu, 11 Aug 2005 16:02:19 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:38:06 -04:00
Chuck Lever
da35187801 [PATCH] RPC: proper soft timeout behavior for rpcbind
Implement a best practice:  for soft mounts, an rpcbind timeout should
 cause an RPC request to fail.

 This also provides an FSM hook for retrying an rpcbind with a different
 rpcbind protocol version.  We'll use this later to try multiple rpcbind
 protocol versions when binding.  To enable this, expose the RPC error
 code returned during a portmap request to the FSM so it can make some
 decision about how to report, retry, or fail the request.

 Test-plan:
 Hundreds of passes with connectathon NFSv3 locking suite, on the client
 and server.

 Version: Thu, 11 Aug 2005 16:01:53 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:38:04 -04:00
Chuck Lever
23475d66bd [PATCH] RPC: Report connection errors properly when mounting with "soft"
Fix up xprt_connect_status: the soft timeout logic was clobbering tk_status,
 so TCP connect errors were not properly reported on soft mounts.

 Test-plan:
 Destructive testing (unplugging the network temporarily).  Connectathon
 with UDP and TCP.

 Version: Thu, 11 Aug 2005 16:01:28 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:38:03 -04:00
Trond Myklebust
9aa48b7e27 NFS: Don't expose internal READDIR errors to userspace
Fixes a condition whereby the kernel is returning the non-POSIX error
 EBADCOOKIE to userspace.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:38:01 -04:00
Olaf Kirch
449231d6dd From: Olaf Kirch <okir@suse.de>
[PATCH] Fix miscompare in __posix_lock_file

 If an application requests the same lock twice, the
 kernel should just leave the existing lock in place.
 Currently, it will install a second lock of the same type.

 Signed-off-by: Olaf Kirch <okir@suse.de>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:37:59 -04:00
Trond Myklebust
20509f1bc5 NFS: Drop inode after rename
When doing a rename on top of an existing file that is not in use,
 the inode of the overwritten file will remain in the icache.

 The fix is to decrement i_nlink of the overwritten inode, like we
 do for unlink, rmdir etc already.

 Problem diagnosed by Olaf Kirch. This patch is a slight variation
 on his fix.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-09-23 12:37:58 -04:00
Ivan Kokshaysky
12f44f46bc [PATCH] pci: fixup parent subordinate busnr
I believe the change that broke things is introduction of
pci_fixup_parent_subordinate_busnr().

The patch here does two things:
- hunk #1 should fix the problems you've seen when you boot without
  additional "pci" kernel options;
- hunk #2 supposedly fixes boot with "pci=assign-busses" option which
  otherwise hangs Acer TM81xx machines as reported.

Please try this with and without "pci=assign-busses". If it boots,
I'd like to see 'lspci -vvx' for both cases.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-23 08:05:16 -07:00
Linus Torvalds
bfab08c097 Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/shaggy/jfs-2.6 2005-09-23 07:40:53 -07:00
Sridhar Samudrala
eb0e007687 [SCTP]: Fix SCTP_SHUTDOWN notifications.
Fix to allow SCTP_SHUTDOWN notifications to be received on 1-1 style
SCTP SOCK_STREAM sockets.

Add SCTP_SHUTDOWN notification to the receive queue before updating
the state of the association.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-22 23:48:38 -07:00
Harald Welte
1dfbab5949 [NETFILTER] Fix conntrack event cache deadlock/oops
This patch fixes a number of bugs.  It cannot be reasonably split up in
multiple fixes, since all bugs interact with each other and affect the same
function:

Bug #1:
The event cache code cannot be called while a lock is held.  Therefore, the
call to ip_conntrack_event_cache() within ip_ct_refresh_acct() needs to be
moved outside of the locked section.  This fixes a number of 2.6.14-rcX
oops and deadlock reports.

Bug #2:
We used to call ct_add_counters() for unconfirmed connections without
holding a lock.  Since the add operations are not atomic, we could race
with another CPU.

Bug #3:
ip_ct_refresh_acct() lost REFRESH events in some cases where refresh
(and the corresponding event) are desired, but no accounting shall be
performed.  Both, evenst and accounting implicitly depended on the skb
parameter bein non-null.   We now re-introduce a non-accounting
"ip_ct_refresh()" variant to explicitly state the desired behaviour.

Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-22 23:46:57 -07:00
Harald Welte
a82b748930 [NETFILTER] remove unneeded structure definition from conntrack helper
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-22 23:45:44 -07:00
Alexey Dobriyan
67497205b1 [NETFILTER] Fix sparse endian warnings in pptp helper
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-22 23:45:24 -07:00
Harald Welte
0ae5d253ad [NETFILTER] fix DEBUG statement in PPTP helper
As noted by Alexey Dobriyan, the DEBUGP statement prints the wrong
callID.

Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-22 23:44:58 -07:00
Vlad Drukker
2a7bc3c94c [BRIDGE]: TSO fix in br_dev_queue_push_xmit
Signed-off-by: Vlad Drukker <vlad@storewiz.com>
Acked-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-22 23:35:34 -07:00
Herbert Xu
83ca28befc [TCP]: Adjust Reno SACK estimate in tcp_fragment
Since the introduction of TSO pcount a year ago, it has been possible
for tcp_fragment() to cause packets_out to decrease.  Prior to that,
tcp_retrans_try_collapse() was the only way for that to happen on the
retransmission path.

When this happens with Reno, it is possible for sasked_out to become
invalid because it is only an estimate and not tied to any particular
packet on the retransmission queue.

Therefore we need to adjust sacked_out as well as left_out in the Reno
case.  The following patch does exactly that.

This bug is pretty difficult to trigger in practice though since you
need a SACKless peer with a retransmission that occurs just as the
cached MTU value expires.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-22 23:32:56 -07:00
Paolo 'Blaisorblade' Giarrusso
e484585ec3 [PATCH] Add dm-snapshot tutorial in Documentation
I've recently discovered the real functionality of device-mapper snapshots,
and since they are not well known, I've decided to write some docs for
them.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:37 -07:00
Nick Wilson
10d2c46f94 [PATCH] NFS: fix client oops when debugging is on
nfs_readpage_release() causes an oops while accessing a file with NFS
debugging turned on (echo 32767 > /proc/sys/sunrpc/nfs_debug) and a kernel
built with CONFIG_DEBUG_SLAB.

This patch moves the debugging statement above nfs_release_request() to
avoid accessing freed memory.

Signed-off-by: Nick Wilson <njw@osdl.org>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:37 -07:00
Rob Landley
f7b3a4359b [PATCH] Fix bd_claim() error code.
Problem: In some circumstances, bd_claim() is returning the wrong error
code.

If we try to swapon an unused block device that isn't swap formatted, we
get -EINVAL.  But if that same block device is already mounted, we instead
get -EBUSY, even though it still isn't a valid swap device.

This issue came up on the busybox list trying to get the error message
from "swapon -a" right.  If a swap device is already enabled, we get -EBUSY,
and we shouldn't report this as an error.  But we can't distinguish the two
-EBUSY conditions, which are very different errors.

In the code, bd_claim() returns either 0 or -EBUSY, but in this case busy
means "somebody other than sys_swapon has already claimed this", and
_that_ means this block device can't be a valid swap device.  So return
-EINVAL there.

Signed-off-by: Rob Landley <rob@landley.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:37 -07:00
Glauber de Oliveira Costa
8bdac5d1ed [PATCH] ext3: EXT3_DEBUG build fixes
Fix some warnings and a build error when EXT3_DEBUG is enabled.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:37 -07:00
Clemens Buchacher
f65d9bea86 [PATCH] oss: don't concatenate __FUNCTION__ with strings
It's deprecated. Use "%s", __FUNCTION__ instead.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Maximilian Attems <janitor@sternwelten.at>
Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:37 -07:00
Chris Zankel
288a60cf4d [PATCH] xtensa: remove io_remap_page_range and minor clean-ups
Remove io_remap_page_range() from all of Linux 2.6.x (as requested and
suggested by Randy Dunlap) and minor clean-ups.

Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:37 -07:00
Paolo 'Blaisorblade' Giarrusso
fac97ae0b1 [PATCH] uml: replace printk with "stack-friendly" printf - to report console failure
User get *a lot* confused when consoles don't work but we don't report
anything.  And, as reported in the comment, using printk to report "your
console doesn't work" isn't likely to go that far.

Fix the problem on the base of this: stack consumption by host printf().  Use
kernel sprintf() and os_write_file, using a wild guess that one page will be
enough for the message, to preallocate the buffer with kmalloc().

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:37 -07:00
Paolo 'Blaisorblade' Giarrusso
79ae2cb856 [PATCH] uml: use GFP_ATOMIC for allocations under spinlocks.
setup_initial_poll is only called with sigio_lock() held, so use appropriate
allocation.

Also, parse_chan() can also be called when holding a spinlock (see line_open()
 -> parse_chan_pair()).

I have sporadic problems (spinlock taken twice, with spinlock debugging on UP)
which could be caused by a sequence like "take spinlock, alloc and go to
sleep, take again the spinlock in the other thread".

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:37 -07:00
Paolo 'Blaisorblade' Giarrusso
46db4a42dd [PATCH] uml: Fix GFP_ flags usage
GFP_ATOMIC | GFP_KERNEL is meaningless and won't work.  Actually it never
worked, even in 2.4.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:37 -07:00
Paolo 'Blaisorblade' Giarrusso
fea03cb40a [PATCH] uml: avoid fixing faults while atomic
Following i386, we should maybe refuse trying to fault in pages when we're
doing atomic operations, because to handle the fault we could need to take
already taken spinlocks.

Also, if we're doing an atomic operation (in the sense of in_atomic()) we're
surely in kernel mode and we're surely going to handle adequately the failed
fault, so it's safe to behave this way.

Currently, on UML SMP is rarely used, and we don't support PREEMPT, so this is
unlikely to create problems right now, but it might in the future.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:36 -07:00
Paolo 'Blaisorblade' Giarrusso
12ebcd73e4 [PATCH] uml: run mconsole "sysrq" in process context
Things are breaking horribly with sysrq called in interrupt context.  I want
to try to fix it, but probably this is simpler.  To tell the truth, sysrq is
normally run in interrupt context, so there shouldn't be any problem.

There's also a warning from the fault handler because it's run in atomic
context (I have a patch for that, only I deferred it).  This is why I'm doing
this.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:36 -07:00
Paolo 'Blaisorblade' Giarrusso
dc36abf34e [PATCH] uml: fix condition in tlb flush
Avoid setting w = 0 twice.  Spotted this (trivial) thing which is needed for
another patch.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:36 -07:00
Paolo 'Blaisorblade' Giarrusso
546fe1cbf9 [PATCH] uml: fix hang in TT mode on fault
The current code doesn't handle well general protection faults on the host -
it thinks that cr2 is always the address of a page fault.  While actually, on
general protection faults, that address is not accessible, so we'd better
assume we couldn't satisfy the fault.  Currently instead we think we've fixed
it, so we go back, retry the instruction and fault again endlessly.

This leads to the kernel hanging when doing copy_from_user(dest, -1, ...) in
TT mode, since reading *(-1) causes a GFP, and we don't support kernel
preemption.

Thanks to Luo Xin for testing UML with LTP and reporting the failures he got.

Cc: Luo Xin <luothing@sina.com>
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:36 -07:00
Paolo 'Blaisorblade' Giarrusso
69e1e688f5 [PATCH] uml: don't redundantly mark pte as newpage in pte_modify
pte_modify marks a page as needing flush, which is redundant because the
resulting PTE is still set with set_pte, which already handles that.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:36 -07:00
Paolo 'Blaisorblade' Giarrusso
a8bfb94c58 [PATCH] strlcat: use for uml umid.c
Simplify the code by using strlcat() instead of strncat() and manual
appending.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:36 -07:00
Paolo 'Blaisorblade' Giarrusso
3a02d6c051 [PATCH] uml: don't remove umid files in conflict case
Only remove the UML pidfile and management socket if we created them.
Currently in case two UMLs are started with the same umid, the second will
remove the first's ones.

Probably we should also panic() at that point, not sure however.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:36 -07:00
Pavel Machek
8686bcd0a5 [PATCH] swsusp: fix comments
Fix comments in swsusp.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:36 -07:00
Christoph Lameter
eafb42707b [PATCH] __kmalloc: Generate BUG if size requested is too large.
I had an issue on ia64 where I got a bug in kernel/workqueue because
kzalloc returned a NULL pointer due to the task structure getting too big
for the slab allocator.  Usually these cases are caught by the kmalloc
macro in include/linux/slab.h.

Compilation will fail if a too big value is passed to kmalloc.

However, kzalloc uses __kmalloc which has no check for that.  This patch
makes __kmalloc bug if a too large entity is requested.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:36 -07:00
Benjamin Herrenschmidt
0cdc82ee1a [PATCH] mesh scsi: fix error handling
The PowerMac mesh SCSI driver had some missing error handling which would
trigger warnings due to lack of handling of return value from
scsi_add_host.  This fixes it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:36 -07:00
Chuck Ebbert
98b4f5929c [PATCH] atiixp_modem printk fixes
Correctly identify atiixp_modem in its error messages.

Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:35 -07:00
Randy Dunlap
e3fc4cc17a [PATCH] corrections to top-level README
Corrections to the recent top-level README changes.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:35 -07:00
Benjamin Herrenschmidt
0365ba7fb1 [PATCH] ppc64: SMU driver update & i2c support
The SMU is the "system controller" chip used by Apple recent G5 machines
including the iMac G5.  It drives things like fans, i2c busses, real time
clock, etc...

The current kernel contains a very crude driver that doesn't do much more
than reading the real time clock synchronously.  This is a completely
rewritten driver that provides interrupt based command queuing, a userland
interface, and an i2c/smbus driver for accessing the devices hanging off
the SMU i2c busses like temperature sensors.  This driver is a basic block
for upcoming work on thermal control for those machines, among others.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:35 -07:00
Anton Blanchard
0f329075fb [PATCH] ppc64: Fix 64bit ptrace DABR support
Fix my stupid bug in the 64bit version of PTRACE_SET_DEBUGREG.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:35 -07:00