linux/arch/cris
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
..
arch-v10 CRIS: avoid using arch links in Kconfig 2008-02-05 09:44:24 -08:00
arch-v32 arch/cris: add a missing iounmap 2008-02-05 09:44:24 -08:00
kernel Introduce flags for reserve_bootmem() 2008-02-07 08:42:25 -08:00
mm spelling fixes: arch/cris/ 2007-10-20 01:08:50 +02:00
defconfig CRIS: remove MTD_AMSTD and MTD_OBSOLETE_CHIPS take two 2007-11-14 18:45:46 -08:00
Kconfig CRIS: avoid using arch links in Kconfig 2008-02-05 09:44:24 -08:00
Kconfig.debug
Makefile kbuild: enable 'make AFLAGS=...' to add additional options to AS 2007-10-15 21:59:31 +02:00