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40074 commits

Author SHA1 Message Date
Andrew Morton
3fcfab16c5 [PATCH] separate bdi congestion functions from queue congestion functions
Separate out the concept of "queue congestion" from "backing-dev congestion".
Congestion is a backing-dev concept, not a queue concept.

The blk_* congestion functions are retained, as wrappers around the core
backing-dev congestion functions.

This proper layering is needed so that NFS can cleanly use the congestion
functions, and so that CONFIG_BLOCK=n actually links.

Cc: "Thomas Maier" <balagi@justmail.de>
Cc: "Jens Axboe" <jens.axboe@oracle.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: David Howells <dhowells@redhat.com>
Cc: Peter Osterlund <petero2@telia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-20 10:26:35 -07:00
Thomas Maier
79e2de4bc5 [PATCH] export clear_queue_congested and set_queue_congested
Export the clear_queue_congested() and set_queue_congested() functions
located in ll_rw_blk.c

The functions are renamed to blk_clear_queue_congested() and
blk_set_queue_congested().

(needed in the pktcdvd driver's bio write congestion control)

Signed-off-by: Thomas Maier <balagi@justmail.de>
Cc: Peter Osterlund <petero2@telia.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-20 10:26:35 -07:00
Pekka Enberg
26da82058e [PATCH] ecryptfs: use special_file()
Use the special_file() macro to check whether an inode is special instead of
open-coding it.

Acked-by: Mike Halcrow <mhalcrow@us.ibm.com>
Cc: Phillip Hellewell <phillip@hellewell.homeip.net>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-20 10:26:35 -07:00
Jeff Moyer
fb5527e68d [PATCH] direct-io: sync and invalidate file region when falling back to buffered write
When direct-io falls back to buffered write, it will just leave the dirty data
floating about in pagecache, pending regular writeback.

But normal direct-io semantics are that IO is synchronous, and that it leaves
no pagecache behind.

So change the fallback-to-buffered-write code to sync the file region and to
then strip away the pagecache, just as a regular direct-io write would do.

Acked-by: Jeff Moyer <jmoyer@redhat.com>
Cc: Zach Brown <zach.brown@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-20 10:26:35 -07:00
Auke Kok
e8e82b76e0 [PATCH] e100: fix reboot -f with netconsole enabled
When rebooting with netconsole over e100, the driver shutdown code would
deadlock with netpoll.  Reduce shutdown code to a bare minimum while retaining
WoL and suspend functionality.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-20 10:26:35 -07:00
Adrian Bunk
b7d8ac3e17 [GFS2] gfs2_dir_read_data(): fix uninitialized variable usage
In the "if (extlen)" case, "bh" was used uninitialized.

This patch changes the code to what seems to have been intended.

Spotted by the Coverity checker.

This patch also removes a pointless "bh = NULL" asignment (the variable
is never accessed again after this point).

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-10-20 09:16:20 -04:00
Adrian Bunk
bbbe451273 [GFS2] fs/gfs2/ops_fstype.c:fill_super_meta(): fix NULL dereference
Don't dereference new->s_root when we do know it's NULL.

Spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-10-20 09:15:57 -04:00
Adrian Bunk
348acd48f0 [GFS2] fs/gfs2/dir.c:gfs2_dir_write_data(): don't use an uninitialized variable
In the "if (extlen)" case, "new" might be used uninitialized.

Looking at the code, it should be initialized to 0.

Spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-10-20 09:15:31 -04:00
Adrian Bunk
b0cb66955f [GFS2] fs/gfs2/ops_fstype.c:gfs2_get_sb_meta(): remove unused variable
The Coverity checker spotted this unused variable.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-10-20 09:15:19 -04:00
Adrian Bunk
abbdbd2065 [GFS2] fs/gfs2/dir.c:gfs2_dir_write_data(): remove dead code
The Coverity checker spotted this obviously dead code.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-10-20 09:14:42 -04:00
Al Viro
a2d7d021d7 [GFS2] gfs2 endianness bug: be16 assigned to be32 field
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-10-20 09:14:08 -04:00
Steven Whitehouse
23591256d6 [GFS2] Fix bmap to map extents properly
This fix means that bmap will map extents of the length requested
by the VFS rather than guessing at it, or just mapping one block
at a time. The other callers of gfs2_block_map are audited to ensure
they send the correct max extent lengths (i.e. set bh->b_size correctly).

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-10-20 09:13:40 -04:00
Patrick Caulfield
42fb00838a [DLM] fix iovec length in recvmsg
I didn't spot that the msg_iovlen was set to 2 if there
were two elements in the iovec but left at zero if not :(

I think this might be why bob was still seeing trouble.

Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-10-20 09:13:10 -04:00
Marcel Holtmann
7b19ffc40b [Bluetooth] Fix HID disconnect NULL pointer dereference
The latest HID disconnect sequence change introduced a NULL pointer
dereference. For the quirk to handle buggy remote HID implementations,
it is enough to wait for a potential control channel disconnect from
the remote side and it is also enough to wait only 500 msecs.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2006-10-20 01:15:05 -07:00
Marcel Holtmann
8602b4fe6e [Bluetooth] Add missing entry for Nokia DTL-4 PCMCIA card
The device id for the Nokia DTL-4 PCMCIA card was missing. This patch
adds it back to the list of supported devices.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2006-10-20 01:15:04 -07:00
Marcel Holtmann
0eab934f4b [Bluetooth] Add support for newer ANYCOM USB dongles
This patch adds the vendor and product id of the ANYCOM Bluetooth
USB-200 and USB-250 dongles and sets a flag to send HCI_Reset as
the first command.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org
2006-10-20 01:15:03 -07:00
Eric Dumazet
58f539740b [NET]: Can use __get_cpu_var() instead of per_cpu() in loopback driver.
As BHs are off in loopback_xmit(), preemption cannot occurs, so we can
use __get_cpu_var() instead of per_cpu() (and avoid a
preempt_enable()/preempt_disable() pair)

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-20 00:32:41 -07:00
David Woodhouse
6cf431d77c [SPARC]: Clean up asm-sparc/elf.h pollution in userspace.
We don't need to export sparc_elf_hwcap() to userspace, and it doesn't
build there.  Remove it by moving it inside #ifdef __KERNEL__, along with
some other things which don't need to be exported.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-20 00:29:33 -07:00
Eric Dumazet
78d7942317 [IPV4] inet_peer: Group together avl_left, avl_right, v4daddr to speedup lookups on some CPUS
Lot of routers/embedded devices still use CPUS with 16/32 bytes cache
lines.  (486, Pentium, ...  PIII) It makes sense to group together
fields used at lookup time so they fit in one cache line.  This reduce
cache footprint and speedup lookups.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-20 00:28:35 -07:00
Eric Dumazet
06ca719fad [TCP]: One NET_INC_STATS() could be NET_INC_STATS_BH in tcp_v4_err()
I believe this NET_INC_STATS() call can be replaced by
NET_INC_STATS_BH(), a little bit cheaper.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-20 00:22:25 -07:00
Björn Steinbrink
82fac0542e [NETFILTER]: Missing check for CAP_NET_ADMIN in iptables compat layer
The 32bit compatibility layer has no CAP_NET_ADMIN check in
compat_do_ipt_get_ctl, which for example allows to list the current
iptables rules even without having that capability (the non-compat
version requires it). Other capabilities might be required to exploit
the bug (eg. CAP_NET_RAW to get the nfnetlink socket?), so a plain user
can't exploit it, but a setup actually using the posix capability system
might very well hit such a constellation of granted capabilities.

Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-20 00:21:10 -07:00
Stephen Hemminger
206daaf77f [NETPOLL]: initialize skb for UDP
Need to fully initialize skb to keep lower layers and queueing happy.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-19 23:58:23 -07:00
David S. Miller
6bda57365a [SPARC64]: Fix of_ioremap().
Use request_mem_region() if IORESOURCE_MEM.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-19 17:20:31 -07:00
David S. Miller
e83f214e45 [SPARC64]: Compute dma_end argument to sabre_pbm_init() correctly.
virtual-dma property layout is [start, size] not [start, end].

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-19 17:20:30 -07:00
Ralf Baechle
d89e36d8df [MIPS] Fix iounmap argument to const volatile.
With the existing prototype the following code:

    const void __iomem *io = ioremap();
    x = readb(io);
    iounmap(io);

did result in a warning.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-19 17:55:14 +01:00
Ralf Baechle
d2bcf87d0f [MIPS] Reserve syscall numbers for kexec_load.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-19 17:55:14 +01:00
Yoichi Yuasa
e7a6f9c1f4 [MIPS] Update tb0287_defconfig
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-19 17:55:14 +01:00
Yoichi Yuasa
0895b19ebd [MIPS] Update pnx8550-v2pci_defconfig
In the current pnx8550-v2pci_defconfig CONFIG_SGI_IP22 has been selected.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-19 17:55:14 +01:00
Yoichi Yuasa
00ddf2be15 [MIPS] Update pnx8500-jbs_defconfig
In the current pnx8550-jbs_defconfig CONFIG_SGI_IP22 has been selected.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-19 17:55:14 +01:00
Yoichi Yuasa
94399ea62f [MIPS] More vr41xx pt_regs fixups
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-19 17:55:14 +01:00
Atsushi Nemoto
eea32d4c6e [MIPS] save_context_stack fix
CONFIG_KALLSYMS=n case is obviously wrong, though it is harmless since
CONFIG_KALLSYMS is always enabled with CONFIG_STACKTRACE for now.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-19 17:55:13 +01:00
Ralf Baechle
089c7e7f2d [MIPS] Use compat_sys_mount.
This fixes mount problems with smbfs, ncpfs and NFSv4.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-19 17:55:13 +01:00
Thiemo Seufer
53571ce470 [MIPS] Fix O32 personality(2) call with 0xffffffff argument.
A sign extension bug did result in sys_personality being invoked with a
0xffffffffffffffffUL argument, so querying the current personality didn't
work.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-19 17:55:13 +01:00
Ralf Baechle
36d98e79b7 [MIPS] A few more pt_regs fixups.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-19 17:55:13 +01:00
Ralf Baechle
ba38cdf942 [MIPS] Malta: Fix uninitialized regs pointer.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-19 17:55:12 +01:00
Ralf Baechle
22c56c3a03 [MIPS] Delete unneeded pt_regs forward declaration.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-19 17:55:12 +01:00
Franck Bui-Huu
55b7428303 [MIPS] Use kallsyms_lookup_size_offset() instead of kallsyms_lookup()
This new routine doesn't lookup for symbol names. So we needn't
to pass any char buffers or pointer since we don't care about
names.

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-19 17:55:12 +01:00
David S. Miller
6723ab549d [IPV6]: Fix route.c warnings when multiple tables are disabled.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 21:20:57 -07:00
David S. Miller
6ba7511b7c [TG3]: Bump driver version and release date.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 20:56:06 -07:00
Michael Chan
bc3a9254a7 [TG3]: Add lower bound checks for tx ring size.
The minimum tx ring size must be greater than MAX_SKB_FRAGS or 3
times that on some chips with TSO bugs.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 20:55:18 -07:00
Ranjit Manomohan
42952231c6 [TG3]: Fix set ring params tx ring size implementation
Fixes the implementation of the ethtool set ring parameters for the
tg3 transmit ring.  The size of tx_pending is taken into account
before doing a netif_wake_queue.  This prevents the interface from
locking up when smaller transmit ring sizes are used.

Signed-off-by: Ranjit Manomohan <ranjitm@google.com>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 20:54:26 -07:00
Eric Dumazet
5175c3786c [NET]: reduce per cpu ram used for loopback stats
We dont need a full struct net_device_stats (currently 23 long : 184 bytes on 
x86_64) per possible CPU, but only two counters : bytes and packets

We save few CPU cycles too in loopback_xmit() not updating 4 fields, but 2. 

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 20:51:57 -07:00
Thomas Graf
9ce8ade015 [IPv6] route: Fix prohibit and blackhole routing decision
Lookups resolving to ip6_blk_hole_entry must result in silently
discarding the packets whereas an ip6_pkt_prohibit_entry is
supposed to cause an ICMPV6_ADM_PROHIBITED message to be sent.

Thanks to Kim Nordlund <kim.nordlund@nokia.com> for noticing
this bug.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 20:46:54 -07:00
Steven Whitehouse
3a31b9d2f2 [DECNET]: Fix input routing bug
This patch fixes a silly bug that has been in the input routing code
for some time. It results in trying to send to a node directly when
the origin of the packet is via the default router.

Its been tested by Alan Kemmerer <alan.kemmerer@mittalsteel.com> who
reported the bug and its a fairly obvious fix for a typo.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Patrick Caulfield <patrick@tykepenguin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 20:45:22 -07:00
John Heffner
ae8064ac32 [TCP]: Bound TSO defer time
This patch limits the amount of time you will defer sending a TSO segment
to less than two clock ticks, or the time between two acks, whichever is
longer.

On slow links, deferring causes significant bursts.  See attached plots,
which show RTT through a 1 Mbps link with a 100 ms RTT and ~100 ms queue
for (a) non-TSO, (b) currnet TSO, and (c) patched TSO.  This burstiness
causes significant jitter, tends to overflow queues early (bad for short
queues), and makes delay-based congestion control more difficult.

Deferring by a couple clock ticks I believe will have a relatively small
impact on performance.

Signed-off-by: John Heffner <jheffner@psc.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 20:36:48 -07:00
Thomas Graf
b52f070c9c [IPv4] fib: Remove unused fib_config members
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 20:26:36 -07:00
Ville Nuorvala
22e1e4d8dc [IPV6]: Always copy rt->u.dst.error when copying a rt6_info.
Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 19:55:30 -07:00
Ville Nuorvala
264e91b68a [IPV6]: Make IPV6_SUBTREES depend on IPV6_MULTIPLE_TABLES.
As IPV6_SUBTREES can't work without IPV6_MULTIPLE_TABLES have IPV6_SUBTREES
depend on it.

Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 19:55:29 -07:00
Ville Nuorvala
e0eda7bbaa [IPV6]: Clean up BACKTRACK().
The fn check is unnecessary as fn can never be NULL in BACKTRACK().

Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 19:55:28 -07:00
Ville Nuorvala
4251320fa2 [IPV6]: Make sure error handling is done when calling ip6_route_output().
As ip6_route_output() never returns NULL, error checking must be done by
looking at dst->error in stead of comparing dst against NULL.

Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 19:55:27 -07:00