alistair23-linux/arch/cris/kernel
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
..
crisksyms.c cris build fixes: fix crisksyms.c 2007-11-14 18:45:46 -08:00
irq.c cris build fixes: irq fixes 2007-11-14 18:45:45 -08:00
Makefile [PATCH] CRIS update: configuration and build 2005-07-27 16:25:59 -07:00
module.c [PATCH] CRIS update: updates for 2.6.12 2005-07-27 16:26:01 -07:00
process.c cris build fixes: corrected and improved NMI and IRQ handling 2007-11-14 18:45:45 -08:00
profile.c CRIS: check for memory allocation 2007-05-07 12:13:00 -07:00
ptrace.c cris build fixes: corrected and improved NMI and IRQ handling 2007-11-14 18:45:45 -08:00
semaphore.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
setup.c Introduce flags for reserve_bootmem() 2008-02-07 08:42:25 -08:00
sys_cris.c cris build fixes: sys_cris.c needs fs.h 2007-11-14 18:45:45 -08:00
time.c cris build fixes: fixes in arch/cris/kernel/time.c 2007-11-14 18:45:45 -08:00
traps.c [PATCH] CRIS update: debug 2005-07-27 16:25:59 -07:00