diff options
| author | Sebastian Siewior <cbe-oss-dev@ml.breakpoint.cc> | 2007-09-19 14:38:12 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-09-19 15:12:16 +1000 |
| commit | 8b0d3121a0b2cf91768ecef635e241b6abc3f1da (patch) | |
| tree | 492f01c3f6239616081c56c4ea7dd8a0944b7f92 | |
| parent | 6232a74f25f45a98d8cf64c5d4208f4795eb693d (diff) | |
| download | blackbird-op-linux-8b0d3121a0b2cf91768ecef635e241b6abc3f1da.tar.gz blackbird-op-linux-8b0d3121a0b2cf91768ecef635e241b6abc3f1da.zip | |
[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>
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/inode.c | 9 |
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 b3d0dd118dd0..e210a4b259fb 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"); } |
