aboutsummaryrefslogtreecommitdiff
path: root/arch/powerpc
diff options
context:
space:
mode:
authorSebastian Siewior <cbe-oss-dev@ml.breakpoint.cc>2007-09-19 14:38:12 +1000
committerPaul Mackerras <paulus@samba.org>2007-09-19 15:12:16 +1000
commit8b0d3121a0b2cf91768ecef635e241b6abc3f1da (patch)
tree492f01c3f6239616081c56c4ea7dd8a0944b7f92 /arch/powerpc
parent6232a74f25f45a98d8cf64c5d4208f4795eb693d (diff)
downloadlinaro-lsk-8b0d3121a0b2cf91768ecef635e241b6abc3f1da.tar.gz
[POWERPC] spufs: Make isolated loader properly aligned
According to the comment in spufs_init_isolated_loader(), the isolated loader should be aligned on a 16 byte boundary. ARCH_{KMALLOC,SLAB}_MINALIGN is not defined so only 8 byte alignment is guaranteed. This enforces alignment via __get_free_pages. Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/platforms/cell/spufs/inode.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index b3d0dd118dd..e210a4b259f 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -43,6 +43,7 @@
static struct kmem_cache *spufs_inode_cache;
char *isolated_loader;
+static int isolated_loader_size;
static struct inode *
spufs_alloc_inode(struct super_block *sb)
@@ -667,7 +668,8 @@ spufs_parse_options(char *options, struct inode *root)
static void spufs_exit_isolated_loader(void)
{
- kfree(isolated_loader);
+ free_pages((unsigned long) isolated_loader,
+ get_order(isolated_loader_size));
}
static void
@@ -685,11 +687,12 @@ spufs_init_isolated_loader(void)
if (!loader)
return;
- /* kmalloc should align on a 16 byte boundary..* */
- isolated_loader = kmalloc(size, GFP_KERNEL);
+ /* the loader must be align on a 16 byte boundary */
+ isolated_loader = (char *)__get_free_pages(GFP_KERNEL, get_order(size));
if (!isolated_loader)
return;
+ isolated_loader_size = size;
memcpy(isolated_loader, loader, size);
printk(KERN_INFO "spufs: SPU isolation mode enabled\n");
}