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linux/arch/s390/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
..
asm-offsets.c rename thread_info to stack 2007-05-09 12:30:56 -07:00
audit.c [S390] Get rid of a bunch of sparse warnings again. 2007-10-12 16:13:06 +02:00
audit.h [S390] Get rid of a bunch of sparse warnings again. 2007-10-12 16:13:06 +02:00
base.S [S390] Convert memory detection into C code. 2007-02-05 21:18:37 +01:00
binfmt_elf32.c [S390] Avoid excessive inlining. 2007-02-05 21:18:53 +01:00
bitmap.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
compat_audit.c [S390] Get rid of a bunch of sparse warnings again. 2007-10-12 16:13:06 +02:00
compat_exec_domain.c [S390] Get rid of a lot of sparse warnings. 2007-02-05 21:16:47 +01:00
compat_linux.c remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
compat_linux.h [S390] noexec protection 2007-02-05 21:18:17 +01:00
compat_ptrace.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
compat_signal.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
compat_wrapper.S timerfd: new timerfd API 2008-02-05 09:44:07 -08:00
cpcmd.c [S390] cpcmd: fix inline assembly usage. 2007-10-12 16:13:09 +02:00
crash.c [S390] Get rid of a lot of sparse warnings. 2007-02-05 21:16:47 +01:00
debug.c [S390] arch/s390/kernel/debug.c: use mutex instead of semaphore 2007-05-31 17:38:11 +02:00
diag.c [S390] vmur: fix diag14 exceptions with addresses > 2GB. 2007-08-22 13:51:47 +02:00
dis.c [S390] disassembler: Remove redundant variable assignment 2007-10-12 16:13:06 +02:00
early.c [S390] Get rid of additional_cpus kernel parameter. 2008-01-26 14:11:15 +01:00
ebcdic.c [S390] Get rid of a lot of sparse warnings. 2007-02-05 21:16:47 +01:00
entry64.S [S390] Fix couple of section mismatches. 2008-02-05 16:50:56 +01:00
entry.S [S390] Fix couple of section mismatches. 2008-02-05 16:50:56 +01:00
head31.S [S390] Fixed handling of access register mode faults. 2007-03-05 23:35:54 +01:00
head64.S [S390] Fix tlb flushing with idte. 2008-01-26 14:11:10 +01:00
head.S [S390] Get rid of new section mismatch warnings. 2007-07-27 12:29:18 +02:00
init_task.c Remove fs.h from mm.h 2007-07-29 17:09:29 -07:00
ipl.c [S390] Fix couple of section mismatches. 2008-02-05 16:50:56 +01:00
irq.c [SOFTIRQ]: Remove do_softirq() symbol export. 2007-10-10 16:48:36 -07:00
kprobes.c kprobes: support kretprobe blacklist 2007-10-16 09:43:10 -07:00
machine_kexec.c [S390] nss: disable kexec. 2007-03-05 23:35:45 +01:00
Makefile [S390] Remove TOPDIR from Makefile 2008-01-26 14:11:29 +01:00
module.c [S390] Use generic bug. 2007-04-27 16:01:42 +02:00
process.c [S390] Print kernel version in dump_stack() and show_regs(). 2008-01-26 14:11:12 +01:00
ptrace.c [S390] single-step cleanup 2008-01-26 14:11:27 +01:00
reipl64.S [S390] reipl: move dump_prefix_page out of text section. 2007-03-05 23:35:43 +01:00
reipl.S [S390] reipl: move dump_prefix_page out of text section. 2007-03-05 23:35:43 +01:00
relocate_kernel64.S [S390] Reset infrastructure for re-IPL. 2006-12-04 15:40:26 +01:00
relocate_kernel.S [S390] Reset infrastructure for re-IPL. 2006-12-04 15:40:26 +01:00
s390_ext.c [S390] ETR support. 2007-02-05 21:18:19 +01:00
s390_ksyms.c [S390] vmur: fix diag14 exceptions with addresses > 2GB. 2007-08-22 13:51:47 +02:00
semaphore.c [S390] Inline assembly cleanup. 2006-09-28 16:56:43 +02:00
setup.c Introduce flags for reserve_bootmem() 2008-02-07 08:42:25 -08:00
signal.c [S390] single-step cleanup 2008-01-26 14:11:27 +01:00
smp.c [S390] Fix couple of section mismatches. 2008-02-05 16:50:56 +01:00
stacktrace.c [S390] latencytop s390 support. 2008-02-05 16:50:59 +01:00
sys_s390.c remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
syscalls.S timerfd: new timerfd API 2008-02-05 09:44:07 -08:00
time.c Driver core: change sysdev classes to use dynamic kobject names 2008-01-24 20:40:40 -08:00
traps.c [S390] DEBUG_PAGEALLOC support for s390. 2008-02-05 16:50:54 +01:00
vmlinux.lds.S [S390] Fix linker script. 2008-02-05 16:50:55 +01:00
vtime.c sched: restore deterministic CPU accounting on powerpc 2007-11-09 22:39:38 +01:00