android_kernel_xiaomi_sm8350/arch/m68knommu
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
..
kernel Introduce flags for reserve_bootmem() 2008-02-07 08:42:25 -08:00
lib Remove inclusions of <linux/autoconf.h> 2008-02-06 10:41:00 -08:00
mm m68knommu: mark mem init functions as __init 2007-10-23 20:45:44 -07:00
platform m68knommu: remove dead timer int pending code 2008-02-01 21:02:04 +11:00
defconfig m68knommu: removing config variable DUMPTOFLASH 2008-02-05 09:44:21 -08:00
Kconfig Move Kconfig.instrumentation to arch/Kconfig and init/Kconfig 2008-02-03 08:58:08 +01:00
Kconfig.debug m68knommu: removing config variable DUMPTOFLASH 2008-02-05 09:44:21 -08:00
Makefile m68knommu: modify Makefiles to support common coldfire directory 2008-02-01 20:58:10 +11:00