linux/arch/parisc
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
..
configs alpha/parisc: remove config variable DEBUG_RWLOCK 2008-02-06 10:41:03 -08:00
hpux [PARISC] Remove hardcoded uses of PAGE_SIZE 2007-10-18 00:59:27 -07:00
kernel arch/parisc/: Spelling fixes 2008-02-03 16:58:20 +02:00
lib Revert "[PARISC] import necessary bits of libgcc.a" 2007-12-06 09:16:29 -08:00
math-emu kbuild: fix up CFLAGS usage 2007-10-14 21:49:42 +02:00
mm Introduce flags for reserve_bootmem() 2008-02-07 08:42:25 -08:00
oprofile Combine instrumentation menus in kernel/Kconfig.instrumentation 2007-10-19 11:53:54 -07:00
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2008-02-04 07:58:52 -08:00
Kconfig.debug alpha/parisc: remove config variable DEBUG_RWLOCK 2008-02-06 10:41:03 -08:00
Makefile Revert "[PARISC] import necessary bits of libgcc.a" 2007-12-06 09:16:29 -08:00
defconfig [PARISC] Update defconfigs 2007-10-18 00:58:37 -07:00
defpalo.conf Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
install.sh Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nm Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00