linux-sg2042/arch/mips/sgi-ip27
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
..
Kconfig [MIPS] Fix build error: don't offer SMP on systems that don't have SMP. 2006-06-29 21:10:51 +01:00
Makefile [MIPS] Use -Werror on subdirectories which build cleanly. 2007-07-31 21:35:33 +01:00
TODO [MIPS] Rewrite all the assembler interrupt handlers to C. 2006-04-19 04:14:21 +02:00
ip27-berr.c [MIPS] IP27: remove duplicate extern dump_tlb_all() prototype 2007-10-11 23:46:00 +01:00
ip27-console.c [MIPS] Fix and cleanup the mess that a dozen prom_printf variants are. 2007-03-04 19:02:37 +00:00
ip27-dbgio.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip27-hubio.c arch/mips/: Spelling fixes 2008-02-03 16:54:53 +02:00
ip27-init.c [MIPS] SMP: Call platform methods via ops structure. 2008-01-29 10:14:57 +00:00
ip27-irq.c [MIPS] IP27: Convert to clock_event_device. 2007-10-18 18:11:47 +01:00
ip27-klconfig.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip27-klnuma.c [MIPS] SMP: Call platform methods via ops structure. 2008-01-29 10:14:57 +00:00
ip27-memory.c Introduce flags for reserve_bootmem() 2008-02-07 08:42:25 -08:00
ip27-nmi.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip27-reset.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
ip27-smp.c [MIPS] SMP: Call platform methods via ops structure. 2008-01-29 10:14:57 +00:00
ip27-timer.c [MIPS] IP27: Fix build error. 2007-11-02 16:13:47 +00:00
ip27-xtalk.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00