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OpenCloudOS-Kernel/arch/arm
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Bernhard Walle 72a7fe3967 Introduce flags for reserve_bootmem() 
This patchset adds a flags variable to reserve_bootmem() and uses the
BOOTMEM_EXCLUSIVE flag in crashkernel reservation code to detect collisions
between crashkernel area and already used memory.

This patch:

Change the reserve_bootmem() function to accept a new flag BOOTMEM_EXCLUSIVE.
If that flag is set, the function returns with -EBUSY if the memory already
has been reserved in the past.  This is to avoid conflicts.

Because that code runs before SMP initialisation, there's no race condition
inside reserve_bootmem_core().

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: fix powerpc build]
Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: <linux-arch@vger.kernel.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2008-02-07 08:42:25 -08:00
..
boot Merge branch 'orion' into devel 2008-01-28 13:21:30 +00:00
common [ARM] xtime_seqlock: fix more ARM machines for xtime deadlocking 2008-02-04 13:14:07 +00:00
configs [ARM] 4806/1: ixp4xx: Ethernet support for the nslu2 and nas100d boards 2008-02-04 13:15:26 +00:00
kernel add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
lib [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-aaec2000 [ARM] Fix timer damage from d3d74453c3 2008-01-28 10:17:12 +00:00
mach-at91 atmel_lcdfb: backlight control 2008-02-06 10:41:16 -08:00
mach-clps711x [ARM] Fix timer damage from d3d74453c3 2008-01-28 10:17:12 +00:00
mach-clps7500 [ARM] Fix timer damage from d3d74453c3 2008-01-28 10:17:12 +00:00
mach-davinci clockevents: fix resume logic 2007-07-21 17:49:15 -07:00
mach-ebsa110 [ARM] Fix timer damage from d3d74453c3 2008-01-28 10:17:12 +00:00
mach-ep93xx Merge branches 'at91', 'ep93xx', 'iop', 'kprobes', 'ks8695', 'misc', 'msm', 's3c2410', 'sa1100' and 'vfp' into devel 2008-01-28 13:21:21 +00:00
mach-footbridge [ARM] Fix timer damage from d3d74453c3 2008-01-28 10:17:12 +00:00
mach-h720x [ARM] Fix timer damage from d3d74453c3 2008-01-28 10:17:12 +00:00
mach-imx Remove references to "make dep" 2008-01-28 23:22:13 +01:00
mach-integrator Merge branches 'at91', 'ep93xx', 'iop', 'kprobes', 'ks8695', 'misc', 'msm', 's3c2410', 'sa1100' and 'vfp' into devel 2008-01-28 13:21:21 +00:00
mach-iop13xx some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
mach-iop32x [ARM] 4770/1: GLAN Tank: correct physmap_flash_data width field 2008-01-26 14:58:55 +00:00
mach-iop33x iop3xx: surface the iop3xx DMA and AAU units to the iop-adma driver 2007-07-13 08:06:19 -07:00
mach-ixp4xx [ARM] 4809/2: ixp4xx: Merge dsmg600-power.c into dsmg600-setup.c 2008-02-04 13:15:27 +00:00
mach-ixp23xx [ARM] remove duplicate includes 2008-01-26 14:50:07 +00:00
mach-ixp2000 [ARM] Fix timer damage from d3d74453c3 2008-01-28 10:17:12 +00:00
mach-ks8695 Merge branches 'at91', 'ep93xx', 'iop', 'kprobes', 'ks8695', 'misc', 'msm', 's3c2410', 'sa1100' and 'vfp' into devel 2008-01-28 13:21:21 +00:00
mach-l7200 [ARM] Remove compatibility layer for ARM irqs 2006-11-30 12:24:47 +00:00
mach-lh7a40x [ARM] Fix timer damage from d3d74453c3 2008-01-28 10:17:12 +00:00
mach-msm [ARM] msm: dma support for MSM7X00A 2008-01-26 14:39:14 +00:00
mach-mx3 [ARM] Fix timer damage from d3d74453c3 2008-01-28 10:17:12 +00:00
mach-netx Remove references to "make dep" 2008-01-28 23:22:13 +01:00
mach-ns9xxx [ARM] 4595/1: ns9xxx: define registers as void __iomem * instead of volatile u32 2007-10-12 23:43:41 +01:00
mach-omap1 Merge branch 'pxa-plat' into devel 2008-01-28 13:21:38 +00:00
mach-omap2 Merge branch 'pxa-plat' into devel 2008-01-28 13:21:38 +00:00
mach-orion [ARM] Orion: implement power-off method for QNAP TS-109/209 2008-01-26 15:04:04 +00:00
mach-pnx4008 [ARM] Fix timer damage from d3d74453c3 2008-01-28 10:17:12 +00:00
mach-pxa gpiolib support for the PXA architecture 2008-02-05 09:44:13 -08:00
mach-realview [ARM] 4822/1: RealView: Change the REALVIEW_MPCORE configuration option 2008-02-04 17:52:28 +00:00
mach-rpc Rename: linux/pata_platform.h to linux/ata_platform.h 2008-02-06 06:54:17 -05:00
mach-s3c2400 [ARM] 4157/2: S3C24XX: move arch/arch/mach-s3c2410 into cpu components 2007-02-11 17:36:09 +00:00
mach-s3c2410 Merge branches 'at91', 'ep93xx', 'iop', 'kprobes', 'ks8695', 'misc', 'msm', 's3c2410', 'sa1100' and 'vfp' into devel 2008-01-28 13:21:21 +00:00
mach-s3c2412 [ARM] 4791/1: S3C2412: Make fclk a parent of msysclk 2008-01-28 13:20:52 +00:00
mach-s3c2440 [ARM] 4794/1: S3C24XX: Comonise S3C2440 and S3C2442 clock code 2008-01-28 13:20:52 +00:00
mach-s3c2442 [ARM] 4794/1: S3C24XX: Comonise S3C2440 and S3C2442 clock code 2008-01-28 13:20:52 +00:00
mach-s3c2443 Driver core: change sysdev classes to use dynamic kobject names 2008-01-24 20:40:40 -08:00
mach-sa1100 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-02-04 15:29:53 -08:00
mach-shark [ARM] Fix timer damage from d3d74453c3 2008-01-28 10:17:12 +00:00
mach-versatile [ARM] 4454/1: Use word accesses in Versatile PCI config reads 2007-07-02 13:39:35 +01:00
mm Introduce flags for reserve_bootmem() 2008-02-07 08:42:25 -08:00
nwfpe Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
oprofile Driver core: change sysdev classes to use dynamic kobject names 2008-01-24 20:40:40 -08:00
plat-iop [ARM] xtime_seqlock: fix more ARM machines for xtime deadlocking 2008-02-04 13:14:07 +00:00
plat-mxc [ARM] 4461/1: MXC platform and i.MX31ADS core support 2007-07-22 15:44:46 +01:00
plat-omap Introduce flags for reserve_bootmem() 2008-02-07 08:42:25 -08:00
plat-s3c [ARM] 4518/1: S3C: Rename watchdog configuration options 2007-07-22 16:44:38 +01:00
plat-s3c24xx Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-02-04 15:29:53 -08:00
tools [ARM] Update mach-types 2008-01-26 14:47:48 +00:00
vfp [ARM] 4583/1: ARMv7: Add VFPv3 support 2008-01-26 14:41:28 +00:00
Kconfig gpiolib support for the PXA architecture 2008-02-05 09:44:13 -08:00
Kconfig-nommu [ARM] 4532/1: allow configuration of processor ID 2007-10-12 23:43:02 +01:00
Kconfig.debug [ARM] CONFIG_DEBUG_STACK_USAGE 2008-01-26 14:50:06 +00:00
Makefile Merge branch 'orion' into devel 2008-01-28 13:21:30 +00:00