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72a7fe3967
linux/arch/mips/kernel
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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
..
8250-platform.c
asm-offsets.c
binfmt_elfn32.c arch/mips/: Spelling fixes 2008-02-03 16:54:53 +02:00
binfmt_elfo32.c arch/mips/: Spelling fixes 2008-02-03 16:54:53 +02:00
branch.c
cevt-bcm1480.c [MIPS] Sibyte: Stop timers before programming next even. 2007-11-15 23:21:50 +00:00
cevt-gt641xx.c [MIPS] time: set clock before clockevent_delta2ns() in GT641xx. 2007-10-29 19:35:33 +00:00
cevt-r4k.c [MIPS] Handle R4000/R4400 mfc0 from count register. 2007-11-26 17:26:14 +00:00
cevt-sb1250.c [MIPS] Sibyte: Stop timers before programming next even. 2007-11-15 23:21:50 +00:00
cevt-txx9.c [MIPS] txx9tmr clockevent/clocksource driver 2007-10-29 19:35:35 +00:00
cpu-bugs64.c [MIPS] R4000/R4400 errata workarounds 2008-01-29 10:14:54 +00:00
cpu-probe.c [MIPS] Alchemy: Au1210/Au1250 CPU support 2008-01-29 10:14:59 +00:00
csrc-bcm1480.c [MIPS] Sibyte: Split and move clock code. 2007-11-02 16:13:47 +00:00
csrc-r4k.c [MIPS] Fix build. 2007-12-01 00:39:37 +00:00
csrc-sb1250.c [MIPS] Sibyte: Fix name of clocksource. 2007-11-15 23:21:51 +00:00
early_printk.c
entry.S
gdb-low.S
gdb-stub.c [MIPS] Kill num_online_cpus() loops. 2007-10-11 23:46:18 +01:00
genex.S [MIPS] R4000/R4400 daddiu erratum workaround 2008-01-29 10:14:55 +00:00
head.S [MIPS] Fix build after b0rked changes to <linux/init.h>. 2008-02-01 14:48:43 +00:00
i8253.c mips, x86: optimize the i8259 code a bit 2008-01-30 13:30:47 +01:00
i8259.c Driver core: change sysdev classes to use dynamic kobject names 2008-01-24 20:40:40 -08:00
init_task.c
irix5sys.S
irixelf.c pid namespaces: round up the API 2007-10-19 11:53:37 -07:00
irixinv.c [MIPS] Fix "no space between function name and open parenthesis" warnings. 2007-10-11 23:46:15 +01:00
irixioctl.c [MIPS] Fix "no space between function name and open parenthesis" warnings. 2007-10-11 23:46:15 +01:00
irixsig.c mips: undo locking on error path returns 2007-11-14 18:45:42 -08:00
irq_cpu.c [MIPS] irq_cpu: use handle_percpu_irq handler to avoid dropping interrupts. 2007-11-15 23:21:52 +00:00
irq_txx9.c
irq-gt641xx.c [MIPS] Add GT641xx IRQ routines. 2007-10-11 23:46:04 +01:00
irq-msc01.c [MIPS] Fix "no space between function name and open parenthesis" warnings. 2007-10-11 23:46:15 +01:00
irq-rm7000.c [MIPS] irq_cpu: use handle_percpu_irq handler to avoid dropping interrupts. 2007-11-15 23:21:52 +00:00
irq-rm9000.c [MIPS] irq_cpu: use handle_percpu_irq handler to avoid dropping interrupts. 2007-11-15 23:21:52 +00:00
irq.c [MIPS] checkfiles: Fix "need space after that ','" errors. 2007-10-11 23:46:15 +01:00
kspd.c arch/mips/: Spelling fixes 2008-02-03 16:54:53 +02:00
linux32.c [MIPS] compat: handle argument endianess of sys32_(f)truncate64 with merge_64 2008-01-29 10:15:02 +00:00
machine_kexec.c
Makefile [MIPS] Only build r4k clocksource for systems that work ok with it. 2007-11-26 17:26:14 +00:00
mips_ksyms.c
mips-mt-fpaff.c cpu-hotplug: replace lock_cpu_hotplug() with get_online_cpus() 2008-01-25 21:08:02 +01:00
mips-mt.c [MIPS] SMP: Call platform methods via ops structure. 2008-01-29 10:14:57 +00:00
module.c Fix misspellings of "system", "controller", "interrupt" and "necessary". 2007-10-19 23:10:43 +02:00
proc.c [MIPS]: constify function pointer tables 2008-01-29 10:15:03 +00:00
process.c [MIPS] Ensure that ST0_FR is never set on a 32 bit kernel 2007-12-14 17:34:30 +00:00
ptrace32.c [MIPS] Store sign-extend register values for PTRACE_GETREGS 2007-10-29 19:35:36 +00:00
ptrace.c [MIPS] Store sign-extend register values for PTRACE_GETREGS 2007-10-29 19:35:36 +00:00
r4k_fpu.S
r4k_switch.S
r2300_fpu.S
r2300_switch.S
r6000_fpu.S
relocate_kernel.S
reset.c
rtlx.c [MIPS] Remove duplicate includes. 2008-01-29 10:14:56 +00:00
scall32-o32.S timerfd: new timerfd API 2008-02-05 09:44:07 -08:00
scall64-64.S timerfd: new timerfd API 2008-02-05 09:44:07 -08:00
scall64-n32.S timerfd: new timerfd API 2008-02-05 09:44:07 -08:00
scall64-o32.S timerfd: new timerfd API 2008-02-05 09:44:07 -08:00
semaphore.c
setup.c Introduce flags for reserve_bootmem() 2008-02-07 08:42:25 -08:00
signal32.c [MIPS] Fix "no space between function name and open parenthesis" warnings. 2007-10-11 23:46:15 +01:00
signal_n32.c [MIPS] Fix "no space between function name and open parenthesis" warnings. 2007-10-11 23:46:15 +01:00
signal-common.h
signal.c [MIPS] checkfiles: Fix "need space after that ','" errors. 2007-10-11 23:46:15 +01:00
smp-mt.c [MIPS] SMP: Call platform methods via ops structure. 2008-01-29 10:14:57 +00:00
smp-up.c [MIPS] Only build r4k clocksource for systems that work ok with it. 2007-11-26 17:26:14 +00:00
smp.c calibrate_delay() must be __cpuinit 2008-02-06 10:41:08 -08:00
smtc-asm.S
smtc-proc.c [MIPS] SMP: Call platform methods via ops structure. 2008-01-29 10:14:57 +00:00
smtc.c arch/mips/: Spelling fixes 2008-02-03 16:54:53 +02:00
stacktrace.c
syscall.c [MIPS] Add len and addr validation for MAP_FIXED mappings. 2007-10-29 19:35:36 +00:00
sysirix.c get rid of NR_OPEN and introduce a sysctl_nr_open 2008-02-06 10:41:06 -08:00
time.c [MIPS] time: remove unused mips_timer_state() 2008-01-29 10:15:00 +00:00
topology.c
traps.c [MIPS] Ensure that ST0_FR is never set on a 32 bit kernel 2007-12-14 17:34:30 +00:00
unaligned.c [MIPS] Fix "no space between function name and open parenthesis" warnings. 2007-10-11 23:46:15 +01:00
vmlinux.lds.S all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
vpe.c [MIPS] Remove duplicate includes. 2008-01-29 10:14:56 +00:00