linux/arch/avr32
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
..
boards [AVR32] Kconfig: Choose daughterboard instead of CPU 2008-01-25 08:31:42 +01:00
boot [PATCH] AVR32: Minor Makefile cleanup 2006-10-25 20:26:32 -07:00
configs [AVR32] ATNGW100: Update defconfig 2008-01-25 08:31:43 +01:00
kernel Introduce flags for reserve_bootmem() 2008-02-07 08:42:25 -08:00
lib read_current_timer() cleanups 2008-02-06 10:41:02 -08:00
mach-at32ap gpiolib: avr32 at32ap platform support 2008-02-05 09:44:13 -08:00
mm [AVR32] constify function pointer tables 2008-01-25 08:31:43 +01:00
oprofile [AVR32] Oprofile support 2008-01-25 08:31:40 +01:00
Kconfig gpiolib: avr32 at32ap platform support 2008-02-05 09:44:13 -08:00
Kconfig.debug [AVR32] Include instrumentation menu 2008-01-25 08:31:40 +01:00
Makefile [AVR32] Add support for AT32AP7001 and AT32AP7002 2008-01-25 08:31:41 +01:00