diff options
| author | Zou Nan hai <nanhai.zou@intel.com> | 2007-06-01 00:46:28 -0700 |
|---|---|---|
| committer | Willy Tarreau <w@1wt.eu> | 2007-08-15 10:02:24 +0200 |
| commit | 6f86cc30ff0f6610b6ec1d41d7d1ab1061e0cc47 (patch) | |
| tree | ac7358fffd3db88a7db72abdecfc7e9d4e312d47 /include | |
| parent | d83b4fd0889e37f57f7e5f7f73394aa81fbcbcdf (diff) | |
[PATCH] x86_64: allocate sparsemem memmap above 4G
On systems with huge amount of physical memory, VFS cache and memory memmap
may eat all available system memory under 4G, then the system may fail to
allocate swiotlb bounce buffer.
There was a fix for this issue in arch/x86_64/mm/numa.c, but that fix dose
not cover sparsemem model.
This patch add fix to sparsemem model by first try to allocate memmap above
4G.
Signed-off-by: Zou Nan hai <nanhai.zou@intel.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[chrisw: trivial backport]
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bootmem.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h index 2275f2748708..8f820e458fe7 100644 --- a/include/linux/bootmem.h +++ b/include/linux/bootmem.h @@ -59,6 +59,7 @@ extern void *__alloc_bootmem_core(struct bootmem_data *bdata, unsigned long align, unsigned long goal, unsigned long limit); +extern void *alloc_bootmem_high_node(pg_data_t *pgdat, unsigned long size); #ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE extern void reserve_bootmem(unsigned long addr, unsigned long size); |