1
linux/arch/powerpc/mm
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
..
40x_mmu.c [POWERPC] ppc405 Fix arithmatic rollover bug when memory size under 16M 2007-11-01 07:15:59 -05:00
44x_mmu.c [POWERPC] 4xx: Deal with 44x virtually tagged icache 2007-11-01 07:15:30 -05:00
fault.c [POWERPC] Make setjmp/longjmp code usable outside of xmon 2008-01-25 22:52:50 +11:00
fsl_booke_mmu.c [POWERPC] 85xx: Respect KERNELBASE, PAGE_OFFSET, and PHYSICAL_START on e500 2008-01-23 19:34:36 -06:00
hash_low_32.S [POWERPC] Fix COMMON symbol warnings 2007-05-17 21:10:15 +10:00
hash_low_64.S [POWERPC] Provide a way to protect 4k subpages when using 64k pages 2008-01-24 10:06:01 +11:00
hash_native_64.c [POWERPC] Use 1TB segments 2007-10-12 14:05:17 +10:00
hash_utils_64.c [POWERPC] Allocate the hash table under 1G on cell 2008-01-31 12:11:09 +11:00
hugetlbpage.c [POWERPC] Add hugepagesz boot-time parameter 2008-01-17 14:57:36 +11:00
init_32.c [POWERPC] 8xx: Set initial memory limit. 2007-10-03 20:36:36 -05:00
init_64.c [POWERPC] Silence an annoying boot message 2007-11-13 16:23:47 +11:00
lmb.c [POWERPC] Fix handling of memreserve if the range lands in highmem 2008-01-23 19:29:08 -06:00
Makefile [POWERPC] Provide a way to protect 4k subpages when using 64k pages 2008-01-24 10:06:01 +11:00
mem.c Introduce flags for reserve_bootmem() 2008-02-07 08:42:25 -08:00
mmap.c Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
mmu_context_32.c [POWERPC] Remove the dregs of APUS support from arch/powerpc 2007-06-14 22:30:15 +10:00
mmu_context_64.c [POWERPC] Tidy up CONFIG_PPC_MM_SLICES code 2007-08-17 11:01:59 +10:00
mmu_decl.h [POWERPC] Fix 8xx build breakage due to _tlbie changes 2007-11-20 18:42:00 +11:00
numa.c Introduce flags for reserve_bootmem() 2008-02-07 08:42:25 -08:00
pgtable_32.c add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
pgtable_64.c [POWERPC] Use 1TB segments 2007-10-12 14:05:17 +10:00
ppc_mmu_32.c [POWERPC] Kill typedef-ed structs for hash PTEs and BATs 2007-06-14 22:30:16 +10:00
slb_low.S [POWERPC] Use SLB size from the device tree 2007-12-11 13:45:56 +11:00
slb.c Merge branch 'linux-2.6' 2008-01-24 10:07:21 +11:00
slice.c spin_lock_unlocked cleanups 2007-10-17 08:43:01 -07:00
stab.c [POWERPC] Fix build failure on legacy iSeries 2007-11-20 11:37:39 +11:00
subpage-prot.c [POWERPC] Provide a way to protect 4k subpages when using 64k pages 2008-01-24 10:06:01 +11:00
tlb_32.c powerpc: tlb_32.c build fix 2007-07-21 17:49:16 -07:00
tlb_64.c [POWERPC] Fix CONFIG_SMP=n build error on ppc64 2007-11-13 16:22:44 +11:00