linux-sg2042/arch/m32r/mm
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
..
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cache.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
discontig.c Introduce flags for reserve_bootmem() 2008-02-07 08:42:25 -08:00
extable.c [PATCH] m32r: Cleanup arch/m32r/mm/extable.c 2005-06-21 19:07:31 -07:00
fault-nommu.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
fault.c pid namespaces: define is_global_init() and is_container_init() 2007-10-19 11:53:37 -07:00
init.c [PATCH] reduce MAX_NR_ZONES: fix MAX_NR_ZONES array initializations 2006-09-26 08:48:46 -07:00
ioremap-nommu.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ioremap.c [PATCH] Generic ioremap_page_range: m32r conversion 2006-10-01 00:39:31 -07:00
mmu.S m32r: fix tme_handler to check _PAGE_PRESENT bit 2007-05-11 08:29:33 -07:00
page.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00