redonkable/remarkable-linux
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Andrew Morton 7a8ef1cb77 [PATCH] x86: don't initialise cpu_possible_map to all ones 
Initialising cpu_possible_map to all-ones with CONFIG_HOTPLUG_CPU means that

a) All for_each_cpu() loops will iterate across all NR_CPUS CPUs, rather
   than over possible ones.  That can be quite expensive.

b) Soon we'll be allocating per-cpu areas only for possible CPUs.  So with
   CPU_MASK_ALL, we'll be wasting memory.

I also switched voyager over to not use CPU_MASK_ALL in the non-CPU-hotplug
case.  Should be OK..

I note that parisc is also using CPU_MASK_ALL.  Suggest that it stop doing
that.

Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Paul Jackson <pj@sgi.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Zwane Mwaikambo <zwane@linuxpower.ca>
Cc: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-10 08:13:12 -08:00
..
acpi [ACPI] ACPICA 20060127 2006-01-31 03:25:09 -05:00
asm-alpha [PATCH] __cmpxchg() must really always be inlined on alpha 2006-02-07 16:12:31 -08:00
asm-arm [ARM] 3279/1: OMAP: 1/3 Fix low-level io init 2006-02-08 22:06:45 +00:00
asm-arm26 [PATCH] arm26: add __kernel_old_dev_t for nfsd 2006-02-01 08:53:22 -08:00
asm-cris [PATCH] include/asm-*/bitops.h: fix more "~0UL >> size" typos 2006-02-03 08:32:02 -08:00
asm-frv [PATCH] include/asm-*/bitops.h: fix more "~0UL >> size" typos 2006-02-03 08:32:02 -08:00
asm-generic [PATCH] Use atomic64_set for 64-bit case of atomic_long_set 2006-01-15 10:17:07 -08:00
asm-h8300 [PATCH] include/asm-*/bitops.h: fix more "~0UL >> size" typos 2006-02-03 08:32:02 -08:00
asm-i386 [PATCH] unshare system call -v5: system call registration for i386 2006-02-07 16:12:34 -08:00
asm-ia64 Pull new-syscalls into release branch 2006-02-09 14:43:58 -08:00
asm-m32r [PATCH] death of get_thread_info/put_thread_info 2006-01-12 09:08:59 -08:00
asm-m68k [PATCH] m68k: kill mach_floppy_setup, convert to proper __setup() in drivers 2006-01-12 09:09:05 -08:00
asm-m68knommu [PATCH] m68knommu: hardirq.h needs definition of NR_IRQS 2006-02-07 16:16:54 -08:00
asm-mips Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus 2006-02-08 09:58:27 -08:00
asm-parisc [PARISC] New syscalls (inotify, *at, pselect6/ppoll, migrate_pages) 2006-01-30 00:53:14 -05:00
asm-powerpc Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/bird 2006-02-08 08:06:09 -08:00
asm-ppc [PATCH] ppc: Remove powermac support from ARCH=ppc 2006-01-15 17:30:44 +11:00
asm-s390 [PATCH] s390 __get_user() bogus warnings removal 2006-02-08 01:04:59 -05:00
asm-sh [PATCH] sh/sh64: Fix bogus TIOCGICOUNT definitions 2006-02-01 08:53:20 -08:00
asm-sh64 [PATCH] sh/sh64: Fix bogus TIOCGICOUNT definitions 2006-02-01 08:53:20 -08:00
asm-sparc [SPARC]: Wire up sys_unshare(). 2006-02-07 18:11:24 -08:00
asm-sparc64 [SPARC]: Wire up sys_unshare(). 2006-02-07 18:11:24 -08:00
asm-um [PATCH] uml: avoid "CONFIG_NR_CPUS undeclared" bogus error messages 2006-02-01 08:53:23 -08:00
asm-v850 [PATCH] include/asm-*/bitops.h: fix more "~0UL >> size" typos 2006-02-03 08:32:02 -08:00
asm-x86_64 [PATCH] x86-64: Add sys_unshare 2006-02-08 15:52:15 -08:00
asm-xtensa [PATCH] xtensa: add asm/futex.h 2006-02-01 08:53:23 -08:00
keys [PATCH] Keys: Remove key duplication 2006-01-06 08:33:29 -08:00
linux [PATCH] x86: don't initialise cpu_possible_map to all ones 2006-02-10 08:13:12 -08:00
math-emu
media V4L/DVB (3388): tuner_params->tda988x is currently unused, so disable 2006-01-15 21:28:17 -02:00
mtd [MTD] user-abi: Clean up trailing white spaces 2005-11-07 14:43:11 +01:00
net [IRDA]: Set proper IrLAP device address length 2006-02-09 16:58:46 -08:00
pcmcia [PATCH] pcmcia: unify attach, EVENT_CARD_INSERTION handlers into one probe callback 2006-01-06 00:03:24 +01:00
rdma IB: Add node_guid to struct ib_device 2006-01-10 07:39:34 -08:00
rxrpc [PATCH] gfp flags annotations - part 1 2005-10-08 15:00:57 -07:00
scsi Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 2006-01-31 13:12:41 -08:00
sound [PATCH] DocBook: fix kernel-doc comments 2006-01-10 08:01:53 -08:00
video [PATCH] include/video/newport.h: "extern inline" -> "static inline" 2006-01-10 08:01:50 -08:00