Commits · a02036e796e5046fe0463b9a092e9b617c525866 · Kirill Smelkov / linux

27 Mar, 2006 40 commits

[PATCH] unify pfn_to_page: mips pfn_to_page · a02036e7

KAMEZAWA Hiroyuki authored Mar 27, 2006

MIPS can use generic funcs.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

a02036e7

[PATCH] unify pfn_to_page: m32r pfn_to_page · 7126cffe

KAMEZAWA Hiroyuki authored Mar 27, 2006

m32r can use generic funcs.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hirokazu Takata <takata.hirokazu@renesas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

7126cffe

[PATCH] unify pfn_to_page: h8300 pfn_to_page · dd6cc763

KAMEZAWA Hiroyuki authored Mar 27, 2006

H8300 can use generic funcs.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

dd6cc763

[PATCH] unify pfn_to_page: FRV pfn_to_page · 5cdac7ca

KAMEZAWA Hiroyuki authored Mar 27, 2006

FRV can use generic funcs.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

5cdac7ca

[PATCH] unify pfn_to_page: cris pfn_to_page · bb872f78

KAMEZAWA Hiroyuki authored Mar 27, 2006

cris can use generic funcs.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

bb872f78

[PATCH] unify pfn_to_page: arm26 pfn_to_page · 89fccaf2

KAMEZAWA Hiroyuki authored Mar 27, 2006

arm26 can use generic funcs.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Ian Molton <spyro@f2s.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

89fccaf2

[PATCH] unify pfn_to_page: arm pfn_to_page · 7eb98a2f

KAMEZAWA Hiroyuki authored Mar 27, 2006

ARM can use generic funcs.
PFN_TO_NID, LOCAL_MAP_NR are defined by sub-archs.
Signed-off-by: KAMEZAWA Hirotuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

7eb98a2f

[PATCH] unify pfn_to_page: alpha pfn_to_page · 1c05dda2

KAMEZAWA Hiroyuki authored Mar 27, 2006

Alpha can use generic funcs.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1c05dda2

[PATCH] unify pfn_to_page: powerpc pfn_to_page · 659e3505

KAMEZAWA Hiroyuki authored Mar 27, 2006

PowerPC can use generic ones.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

659e3505

[PATCH] unify pfn_to_page: x86_64 pfn_to_page · dc8ecb43

KAMEZAWA Hiroyuki authored Mar 27, 2006

x86_64 can use generic funcs.
For DISCONTIGMEM, CONFIG_OUT_OF_LINE_PFN_TO_PAGE is selected.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

dc8ecb43

[PATCH] unify pfn_to_page: i386 pfn_to_page · ad658b38

KAMEZAWA Hiroyuki authored Mar 27, 2006

i386 can use generic funcs.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

ad658b38

[PATCH] unify pfn_to_page: generic functions · a117e66e

KAMEZAWA Hiroyuki authored Mar 27, 2006

There are 3 memory models, FLATMEM, DISCONTIGMEM, SPARSEMEM.
Each arch has its own page_to_pfn(), pfn_to_page() for each models.
But most of them can use the same arithmetic.

This patch adds asm-generic/memory_model.h, which includes generic
page_to_pfn(), pfn_to_page() definitions for each memory model.

When CONFIG_OUT_OF_LINE_PFN_TO_PAGE=y, out-of-line functions are
used instead of macro. This is enabled by some archs and  reduces
text size.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ian Molton <spyro@f2s.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Hirokazu Takata <takata.hirokazu@renesas.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Cc: Richard Curnow <rc@rc0.org.uk>
Cc: William Lee Irwin III <wli@holomorphy.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp>
Cc: Chris Zankel <chris@zankel.net>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

a117e66e

[PATCH] x86: don't use cpuid.2 to determine cache info if cpuid.4 is supported · b06be912

Shaohua Li authored Mar 27, 2006

Don't use cpuid.2 to determine cache info if cpuid.4 is supported.  The
exception is P4 trace cache.  We always use cpuid.2 to get trace cache
under P4.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

b06be912

[PATCH] sched: fix group power for allnodes_domains · 08069033

Siddha, Suresh B authored Mar 27, 2006

Current sched groups power calculation for allnodes_domains is wrong.  We
should really be using cumulative power of the physical packages in that
group (similar to the calculation in node_domains)
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

08069033

[PATCH] sched: new sched domain for representing multi-core · 1e9f28fa

Siddha, Suresh B authored Mar 27, 2006

Add a new sched domain for representing multi-core with shared caches
between cores.  Consider a dual package system, each package containing two
cores and with last level cache shared between cores with in a package.  If
there are two runnable processes, with this appended patch those two
processes will be scheduled on different packages.

On such systems, with this patch we have observed 8% perf improvement with
specJBB(2 warehouse) benchmark and 35% improvement with CFP2000 rate(with 2
users).

This new domain will come into play only on multi-core systems with shared
caches.  On other systems, this sched domain will be removed by domain
degeneration code.  This new domain can be also used for implementing power
savings policy (see OLS 2005 CMP kernel scheduler paper for more details..
I will post another patch for power savings policy soon)

Most of the arch/* file changes are for cpu_coregroup_map() implementation.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1e9f28fa

[PATCH] Small schedule() optimization · 77e4bfbc

Andreas Mohr authored Mar 27, 2006

small schedule() microoptimization.
Signed-off-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

77e4bfbc

[PATCH] sched: fix task interactivity calculation · 013d3868

Martin Andersson authored Mar 27, 2006

Is a truncation error in kernel/sched.c triggered when the nice value is
negative.  The affected code is used in the TASK_INTERACTIVE macro.

The code is:
#define SCALE(v1,v1_max,v2_max) \
	(v1) * (v2_max) / (v1_max)

which is used in this way:
SCALE(TASK_NICE(p), 40, MAX_BONUS)

Comments in the code says:
  * This part scales the interactivity limit depending on niceness.
  *
  * We scale it linearly, offset by the INTERACTIVE_DELTA delta.
  * Here are a few examples of different nice levels:
  *
  *  TASK_INTERACTIVE(-20): [1,1,1,1,1,1,1,1,1,0,0]
  *  TASK_INTERACTIVE(-10): [1,1,1,1,1,1,1,0,0,0,0]
  *  TASK_INTERACTIVE(  0): [1,1,1,1,0,0,0,0,0,0,0]
  *  TASK_INTERACTIVE( 10): [1,1,0,0,0,0,0,0,0,0,0]
  *  TASK_INTERACTIVE( 19): [0,0,0,0,0,0,0,0,0,0,0]
  *
  * (the X axis represents the possible -5 ... 0 ... +5 dynamic
  *  priority range a task can explore, a value of '1' means the
  *  task is rated interactive.)

However, the current code does not scale it linearly and the result differs
from the given examples.  If the mathematical function "floor" is used when
the nice value is negative instead of the truncation one gets when using
integer division, the result conforms to the documentation.

Output of TASK_INTERACTIVE when using the kernel code:
nice    dynamic priorities
-20     1     1     1     1     1     1     1     1     1     0     0
-19     1     1     1     1     1     1     1     1     0     0     0
-18     1     1     1     1     1     1     1     1     0     0     0
-17     1     1     1     1     1     1     1     1     0     0     0
-16     1     1     1     1     1     1     1     1     0     0     0
-15     1     1     1     1     1     1     1     0     0     0     0
-14     1     1     1     1     1     1     1     0     0     0     0
-13     1     1     1     1     1     1     1     0     0     0     0
-12     1     1     1     1     1     1     1     0     0     0     0
-11     1     1     1     1     1     1     0     0     0     0     0
-10     1     1     1     1     1     1     0     0     0     0     0
  -9     1     1     1     1     1     1     0     0     0     0     0
  -8     1     1     1     1     1     1     0     0     0     0     0
  -7     1     1     1     1     1     0     0     0     0     0     0
  -6     1     1     1     1     1     0     0     0     0     0     0
  -5     1     1     1     1     1     0     0     0     0     0     0
  -4     1     1     1     1     1     0     0     0     0     0     0
  -3     1     1     1     1     0     0     0     0     0     0     0
  -2     1     1     1     1     0     0     0     0     0     0     0
  -1     1     1     1     1     0     0     0     0     0     0     0
  0      1     1     1     1     0     0     0     0     0     0     0
  1      1     1     1     1     0     0     0     0     0     0     0
  2      1     1     1     1     0     0     0     0     0     0     0
  3      1     1     1     1     0     0     0     0     0     0     0
  4      1     1     1     0     0     0     0     0     0     0     0
  5      1     1     1     0     0     0     0     0     0     0     0
  6      1     1     1     0     0     0     0     0     0     0     0
  7      1     1     1     0     0     0     0     0     0     0     0
  8      1     1     0     0     0     0     0     0     0     0     0
  9      1     1     0     0     0     0     0     0     0     0     0
10      1     1     0     0     0     0     0     0     0     0     0
11      1     1     0     0     0     0     0     0     0     0     0
12      1     0     0     0     0     0     0     0     0     0     0
13      1     0     0     0     0     0     0     0     0     0     0
14      1     0     0     0     0     0     0     0     0     0     0
15      1     0     0     0     0     0     0     0     0     0     0
16      0     0     0     0     0     0     0     0     0     0     0
17      0     0     0     0     0     0     0     0     0     0     0
18      0     0     0     0     0     0     0     0     0     0     0
19      0     0     0     0     0     0     0     0     0     0     0

Output of TASK_INTERACTIVE when using "floor"
nice    dynamic priorities
-20     1     1     1     1     1     1     1     1     1     0     0
-19     1     1     1     1     1     1     1     1     1     0     0
-18     1     1     1     1     1     1     1     1     1     0     0
-17     1     1     1     1     1     1     1     1     1     0     0
-16     1     1     1     1     1     1     1     1     0     0     0
-15     1     1     1     1     1     1     1     1     0     0     0
-14     1     1     1     1     1     1     1     1     0     0     0
-13     1     1     1     1     1     1     1     1     0     0     0
-12     1     1     1     1     1     1     1     0     0     0     0
-11     1     1     1     1     1     1     1     0     0     0     0
-10     1     1     1     1     1     1     1     0     0     0     0
  -9     1     1     1     1     1     1     1     0     0     0     0
  -8     1     1     1     1     1     1     0     0     0     0     0
  -7     1     1     1     1     1     1     0     0     0     0     0
  -6     1     1     1     1     1     1     0     0     0     0     0
  -5     1     1     1     1     1     1     0     0     0     0     0
  -4     1     1     1     1     1     0     0     0     0     0     0
  -3     1     1     1     1     1     0     0     0     0     0     0
  -2     1     1     1     1     1     0     0     0     0     0     0
  -1     1     1     1     1     1     0     0     0     0     0     0
   0     1     1     1     1     0     0     0     0     0     0     0
   1     1     1     1     1     0     0     0     0     0     0     0
   2     1     1     1     1     0     0     0     0     0     0     0
   3     1     1     1     1     0     0     0     0     0     0     0
   4     1     1     1     0     0     0     0     0     0     0     0
   5     1     1     1     0     0     0     0     0     0     0     0
   6     1     1     1     0     0     0     0     0     0     0     0
   7     1     1     1     0     0     0     0     0     0     0     0
   8     1     1     0     0     0     0     0     0     0     0     0
   9     1     1     0     0     0     0     0     0     0     0     0
  10     1     1     0     0     0     0     0     0     0     0     0
  11     1     1     0     0     0     0     0     0     0     0     0
  12     1     0     0     0     0     0     0     0     0     0     0
  13     1     0     0     0     0     0     0     0     0     0     0
  14     1     0     0     0     0     0     0     0     0     0     0
  15     1     0     0     0     0     0     0     0     0     0     0
  16     0     0     0     0     0     0     0     0     0     0     0
  17     0     0     0     0     0     0     0     0     0     0     0
  18     0     0     0     0     0     0     0     0     0     0     0
  19     0     0     0     0     0     0     0     0     0     0     0
Signed-off-by: Martin Andersson <martin.andersson@control.lth.se>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Williams <pwil3058@bigpond.net.au>
Cc: Con Kolivas <kernel@kolivas.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

013d3868

[PATCH] knfsd: Update rpc-cache.txt to match recent changes · 49121471

NeilBrown authored Mar 27, 2006

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

49121471

[PATCH] knfsd: Tidy up unix_domain_find · ad1b5229

NeilBrown authored Mar 27, 2006

We shouldn't really compare &new->h with anything when new ==NULL, and gather
three different if statements that all start

  if (rv ...

into one large if.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

ad1b5229

[PATCH] fs/nfsd/export.c,net/sunrpc/cache.c: make needlessly global code static · 74cae61a

Adrian Bunk authored Mar 27, 2006

We can now make some code static.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Neil Brown <neilb@suse.de>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

74cae61a

[PATCH] knfsd: Convert sunrpc_cache to use krefs · baab935f

NeilBrown authored Mar 27, 2006

.. it makes some of the code nicer.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

baab935f

[PATCH] knfsd: Unexport cache_fresh and fix a small race · ebd0cb1a

NeilBrown authored Mar 27, 2006

Cache_fresh is now only used in cache.c, so unexport it.

Part of cache_fresh (setting CACHE_VALID) should really be done under the
lock, while part (calling cache_revisit_request etc) must be done outside the
lock.  So we split it up appropriately.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

ebd0cb1a

[PATCH] knfsd: Remove DefineCacheLookup · 4d90452c

NeilBrown authored Mar 27, 2006

This has been replaced by more traditional code.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

4d90452c

[PATCH] knfsd: An assortment of little fixes to the sunrpc cache code · 4013edea

NeilBrown authored Mar 27, 2006

- in cache_check, h must be non-NULL as it has been de-referenced,
  so don't bother checking for NULL.

- When a cache-item is updated, we need to call cache_revisit_request to see
  if there is a pending request waiting for that item.  We were using
  a transition to CACHE_VALID to see if that was needed, however that is
  wrong as an expired entry will still be marked 'valid' (as the data is valid
  and will need to be released).  So instead use an off transition for
  CACHE_PENDING which is exactly the right thing to test.

- Add a little bit more debugging info.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

4013edea

[PATCH] knfsd: Use new cache code for name/id lookup caches · f9ecc921

NeilBrown authored Mar 27, 2006

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

f9ecc921

[PATCH] knfsd: Use new cache code for rsc cache · 17f834b6

NeilBrown authored Mar 27, 2006

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

17f834b6

[PATCH] knfsd: Use new sunrpc cache for rsi cache · d4d11ea9

NeilBrown authored Mar 27, 2006

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

d4d11ea9

[PATCH] knfsd: Use new cache_lookup for svc_expkey cache · 8d270f7f

NeilBrown authored Mar 27, 2006

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

8d270f7f

[PATCH] knfsd: Use new cache_lookup for svc_export · 4f7774c3

NeilBrown authored Mar 27, 2006

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

4f7774c3

[PATCH] knfsd: Convert ip_map cache to use the new lookup routine · 1a9917c2

NeilBrown authored Mar 27, 2006

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1a9917c2

[PATCH] knfsd: Create cache_lookup function instead of using a macro to declare one · 15a5f6bd

NeilBrown authored Mar 27, 2006

The C++-like 'template' approach proves to be too ugly and hard to work with.

The old 'template' won't go away until all users are updated.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

15a5f6bd

[PATCH] knfsd: Get rid of 'inplace' sunrpc caches · 7d317f2c

NeilBrown authored Mar 27, 2006

These were an unnecessary wart.  Also only have one 'DefineSimpleCache..'
instead of two.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

7d317f2c

[PATCH] knfsd: Break the hard linkage from svc_expkey to svc_export · eab7e2e6

NeilBrown authored Mar 27, 2006

Current svc_expkey holds a pointer to the svc_export structure, so updates to
that structure have to be in-place, which is a wart on the whole cache
infrastruct.  So we break that linkage and just do a second lookup.

If this became a performance issue, it would be possible to put a direct link
back in which was only used conditionally.  i.e.  when an object is replaced
in the cache, we set a flag in the old object.  When dereferencing the link
from svc_expkey, if the flag is set, we drop the reference and do a fresh
lookup.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

eab7e2e6

[PATCH] knfsd: Change the store of auth_domains to not be a 'cache' · efc36aa5

NeilBrown authored Mar 27, 2006

The 'auth_domain's are simply handles on internal data structures.  They do
not cache information from user-space, and forcing them into the mold of a
'cache' misrepresents their true nature and causes confusion.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

efc36aa5

[PATCH] autofs4: atomic var underflow · 3e7b1919

Ian Kent authored Mar 27, 2006

Fix accidental underflow of the atomic counter.
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

3e7b1919

[PATCH] autofs4: follow_link missing functionality · 871f9434

Ian Kent authored Mar 27, 2006

This functionality is also need for operation of autofs v5 direct mounts.
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

871f9434

[PATCH] Remove redundant check from autofs4_put_super · 3370c74b

Dave Jones authored Mar 27, 2006

We have to have a valid sbi here, or we'd have oopsed already.  (There's a
dereference of sbi->catatonic a few lines above)

Coverity #740
Signed-off-by: Dave Jones <davej@redhat.com>
Cc: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

3370c74b

[PATCH] autofs4: change AUTOFS_TYP_* AUTOFS_TYPE_* · 44d53eb0

Ian Kent authored Mar 27, 2006

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

44d53eb0

[PATCH] autofs4: add new packet type for v5 communications · 5c0a32fc

Ian Kent authored Mar 27, 2006

This patch define a new autofs packet for autofs v5 and updates the waitq.c
functions to handle the additional packet type.
Signed-off-by: Ian Kent <raven@themaw.net>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

5c0a32fc

[PATCH] autofs4: add v5 expire logic · 3a15e2ab

Ian Kent authored Mar 27, 2006

This patch adds expire logic for autofs direct mounts.
Signed-off-by: Ian Kent <raven@themaw.net>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

3a15e2ab