The max possible is the maximum RPC payload.  The default depends on amount of
total memory.

The value can be set within reason as long as no nfsd threads are currently
running.  The value can also be ready, allowing the default to be determined
after nfsd has started.
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

The limit over UDP remains at 32K.  Also, make some of the apparently
arbitrary sizing constants clearer.

The biggest change here involves replacing NFSSVC_MAXBLKSIZE by a function of
the rqstp.  This allows it to be different for different protocols (udp/tcp)
and also allows it to depend on the servers declared sv_bufsiz.

Note that we don't actually increase sv_bufsz for nfs yet.  That comes next.
Signed-off-by: NGreg Banks <gnb@melbourne.sgi.com>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

..  by allocating the array of 'kvec' in 'struct svc_rqst'.

As we plan to increase RPCSVC_MAXPAGES from 8 upto 256, we can no longer
allocate an array of this size on the stack.  So we allocate it in 'struct
svc_rqst'.

However svc_rqst contains (indirectly) an array of the same type and size
(actually several, but they are in a union).  So rather than waste space, we
move those arrays out of the separately allocated union and into svc_rqst to
share with the kvec moved out of svc_tcp_recvfrom (various arrays are used at
different times, so there is no conflict).
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

We are planning to increase RPCSVC_MAXPAGES from about 8 to about 256.  This
means we need to be a bit careful about arrays of size RPCSVC_MAXPAGES.

struct svc_rqst contains two such arrays.  However the there are never more
that RPCSVC_MAXPAGES pages in the two arrays together, so only one array is
needed.

The two arrays are for the pages holding the request, and the pages holding
the reply.  Instead of two arrays, we can simply keep an index into where the
first reply page is.

This patch also removes a number of small inline functions that probably
server to obscure what is going on rather than clarify it, and opencode the
needed functionality.

Also remove the 'rq_restailpage' variable as it is *always* 0.  i.e.  if the
response 'xdr' structure has a non-empty tail it is always in the same pages
as the head.

 check counters are initilised and incr properly
 check for consistant usage of ++ etc
 maybe extra some inlines for common approach
 general review
Signed-off-by: NNeil Brown <neilb@suse.de>
Cc: Magnus Maatta <novell@kiruna.se>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Arrgg..  We cannot 'lockd_up' before 'svc_addsock' as we don't know the
protocol yet....  So switch it around again and save the name of the created
sockets so that it can be closed if lock_up fails.
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

The refcount that nfsd holds on lockd is based on the number of open sockets.
So when we close a socket, we should decrement the ref (with lockd_down).

Currently when a socket is closed via writing to the portlist file, that
doesn't happen.

So: make sure we get an error return if the socket that was requested does is
not found, and call lockd_down if it was.

Cc: "J. Bruce Fields" <bfields@fieldses.org>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

nfsv2 needs the I_MUTEX_PARENT on the directory when creating a file too.
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Whitespace cleanup, delete unnecesasry parenthesis and braces.
Signed-off-by: NJiri Slaby <jirislaby@gmail.com>
Acked-by: NKarsten Keil <kkeil@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Use the new multi block-write error reporting flag and properly tell the block
layer how much data was transferred before the error.
Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

The MMC layer uses the standard work queue for doing card detection.  As this
queue is shared with other crucial subsystems, the effects of a long (and
perhaps buggy) detection can cause the system to be unusable.  E.g.  the
keyboard stops working while the detection routine is running.

The solution is to add a specific mmc work queue to run the detection code in.
This is similar to how other subsystems handle detection (a full kernel
thread is the most common theme).
Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Some Ricoh controllers only respect a full reset when there is no card in the
slot.  As we wait for the reset to complete, we must avoid even requesting
those resets on the buggy controllers.
Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Sprinkle some mmiowb() where needed (writeX() before unlock()).
Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Signed-off-by: NAlex Dubov <oakad@yahoo.com>
Cc: Daniel Qarras <dqarras@yahoo.com>
Acked-by: NPierre Ossman <drzeus@drzeus.cx>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Driver for TI Flash Media card reader.  At present, only MMC/SD cards are
supported.

[akpm@osdl.org: cleanups, build fixes]
Signed-off-by: NAlex Dubov <oakad@yahoo.com>
Cc: Daniel Qarras <dqarras@yahoo.com>
Acked-by: NPierre Ossman <drzeus@drzeus.cx>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Fix paren-placement / precedence bug breaking initialization for 1 MHz
clock mode.

Also fix comment spelling error, and fence-post (off-by-one) error on
symbol used in request_region.

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=7242

Thanks alexander.krause@erazor-zone.de, dzpost@dedekind.net, for the
reports and patch test, and phelps@mantara.com for the independent patch
and verification.
Signed-off-by: NJim Cromie <jim.cromie@gmail.com>
Cc: <alexander.krause@erazor-zone.de>
Cc: <dzpost@dedekind.net>
Cc: <phelps@mantara.com>
Acked-by: NJohn Stultz <johnstul@us.ibm.com>
Cc: <stable@kernel.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Roland Dreier wrote:
> The change "PCI: assign ioapic resource at hotplug" (commit
> 23186279 in Linus's tree) makes
> networking stop working on my system (SuperMicro H8QC8 with four
> dual-core Opteron 885 CPUs).  In particular, the on-board NIC stops
> working, probably because it gets assigned the wrong IRQ (225 in the
> non-working case, 217 in the working case)
>
> With that patch applied, e1000 doesn't work.  Reverting just that
> patch (shown below) from Linus's latest tree fixes things for me.
>

The cause of this problem might be an wrong assumption that the 'start'
member of resource structure for ioapic device has non-zero value if the
resources are assigned by firmware.  The 'start' member of ioapic device
seems not to be set even though the resources were actually assigned to
ioapic devices by firmware.

Cc: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Cc: MUNEDA Takahiro <muneda.takahiro@jp.fujitsu.com>
Cc: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Roland Dreier <rdreier@cisco.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Not all architectures have a file named 'defconfig' (e.g.  powerpc).
However the make TAGS and make tags targets search such files for tags,
causing an error message when they don't exist.  This patch addresses the
problem by instructing xargs not to run the tags program if there are no
matching files.
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Since all callers dereference dir, we dont need this check.  Coverity id
#337.
Signed-off-by: NEric Sesterhenn <snakebyte@gmx.de>
Cc: Jeff Mahoney <jeffm@suse.com>
Cc: <reiserfs-dev@namesys.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

pktcdvd: Rename a variable for better readability.
Signed-off-by: NThomas Maier <balagi@justmail.de>
Signed-off-by: NPeter Osterlund <petero2@telia.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

pktcdvd: Replace pktcdvd strings with macro DRIVER_NAME.
Signed-off-by: NThomas Maier <balagi@justmail.de>
Signed-off-by: NPeter Osterlund <petero2@telia.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

serial167, remove useless tty check

tty is dereferenced before it is checked to be non-NULL.  Remove such
check.
Signed-off-by: NJiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

char, another tmp_buf cleanup

No need to allocate one page as a side buffer.  It's no more used.  Clean this
(de)allocs of this useless memory pages in char subtree.
Signed-off-by: NJiri Slaby <jirislaby@gmail.com>
Acked-by: NAlan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

- rename ____kmalloc to kmalloc_track_caller so that people have a chance
  to guess what it does just from it's name.  Add a comment describing it
  for those who don't.  Also move it after kmalloc in slab.h so people get
  less confused when they are just looking for kmalloc - move things around
  in slab.c a little to reduce the ifdef mess.

[penberg@cs.helsinki.fi: Fix up reversed #ifdef]
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi>
Cc: Christoph Lameter <clameter@engr.sgi.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Fix kernel-doc and function declaration (missing "void") in
mm/page_alloc.c.

Add mm/page_alloc.c to kernel-api.tmpl in DocBook.

mm/page_alloc.c:2589:38: warning: non-ANSI function declaration of function 'remove_all_active_ranges'
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>
Acked-by: NChristoph Lameter <clameter@sgi.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Spotted by Hugh that hugetlb page is free'ed back to global pool before
performing any TLB flush in unmap_hugepage_range().  This potentially allow
threads to abuse free-alloc race condition.

The generic tlb gather code is unsuitable to use by hugetlb, I just open
coded a page gathering list and delayed put_page until tlb flush is
performed.

Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: NKen Chen <kenneth.w.chen@intel.com>
Acked-by: NWilliam Irwin <wli@holomorphy.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Having min be a signed quantity means gcc can't turn high latency divides
into shifts.  There happen to be two such divides for GFP_ATOMIC (ie.
networking, ie.  important) allocations, one of which depends on the other.
 Fixing this makes code smaller as a bonus.

Shame on somebody (probably me).
Signed-off-by: NNick Piggin <npiggin@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Fixes an kerneldoc error.
Signed-off-by: NHenrik Kretzschmar <henne@nachtwindheim.de>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Acked-by: NChristoph Hellwig <hch@infradead.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

While reading this I noticed that the contents of this document list
section "3.8 Command line dependency" but it doesn't exist in the document.
Signed-off-by: NDaniel Walker <dwalker@mvista.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Don't require that scripts/hdrcheck.sh be executable - shit happens...

Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: NDavid Woodhouse <dwmw2@infradead.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Fix headers_check #ifdef __KERNEL__ stuff.
Signed-off-by: NCedric Le Goater <clg@fr.ibm.com>
All-the-fault-of: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

This allows numaq to properly align cpus to their given node during
boot.  Pass logical apicid to apicid_to_node and allow the summit
sub-arch to use physical apicid (hard_smp_processor_id()).

Tested against numaq and summit based systems with no issues.
Signed-off-by: NKeith Mannthey <kmannth@us.ibm.com>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (39 commits)
  Add missing maintainer countries in CREDITS
  Fix bytes <-> kilobytes  typo in Kconfig for ramdisk
  fix a typo in Documentation/pi-futex.txt
  BUG_ON conversion for fs/xfs/
  BUG_ON() conversion in fs/nfsd/
  BUG_ON conversion for fs/reiserfs
  BUG_ON cleanups in arch/i386
  BUG_ON cleanup in drivers/net/tokenring/
  BUG_ON cleanup for drivers/md/
  kerneldoc-typo in led-class.c
  debugfs: spelling fix
  rcutorture: Fix incorrect description of default for nreaders parameter
  parport: Remove space in function calls
  Michal Wronski: update contact info
  Spelling fix: "control" instead of "cotrol"
  reboot parameter in Documentation/kernel-parameters.txt
  Fix copy&waste bug in comment in scripts/kernel-doc
  remove duplicate "until" from kernel/workqueue.c
  ite_gpio fix tabbage
  fix file specification in comments
  ...

Fixed trivial path conflicts due to removed files:
   arch/mips/dec/boot/decstation.c, drivers/char/ite_gpio.c

Add missing maintainer countries.
Signed-off-by: NSamuel Tardieu <sam@rfc1149.net>
Signed-off-by: NAdrian Bunk <bunk@stusta.de>

This is a small fix for a typo in Kconfig. The default value for the block
size is 1024 bytes not 1024 kilobytes.
Signed-off-by: NChristian Borntraeger <borntrae@de.ibm.com>
Signed-off-by: NAdrian Bunk <bunk@stusta.de>

Signed-off-by: NRiccardo Magliocchetti <riccardo@datahost.it>
Signed-off-by: NAdrian Bunk <bunk@stusta.de>

This patch converts two if () BUG(); construct to BUG_ON();
which occupies less space, uses unlikely and is safer when
BUG() is disabled.
Signed-off-by: NEric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: NAdrian Bunk <bunk@stusta.de>

This patch converts an if () BUG(); construct to BUG_ON();
which occupies less space, uses unlikely and is safer when
BUG() is disabled.
Signed-off-by: NEric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: NAdrian Bunk <bunk@stusta.de>

This patch converts several if () BUG(); construct to BUG_ON();
which occupies less space, uses unlikely and is safer when
BUG() is disabled. S_ISREG() has no side effects, so the
conversion is safe.
Signed-off-by: NEric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: NAdrian Bunk <bunk@stusta.de>

This changes a couple of if() BUG(); constructs to
BUG_ON(); so it can be safely optimized away.
Signed-off-by: NEric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: NAdrian Bunk <bunk@stusta.de>