diff options
| author | Pallipadi, Venkatesh <venkatesh.pallipadi@intel.com> | 2010-02-24 22:43:55 +0100 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2010-03-01 23:28:48 +0100 |
| commit | 4daa2a8093ecd1148270a1fc64e99f072b8c2901 (patch) | |
| tree | 6cb7c892d1ec77caff89ce183172e5950f085201 /arch | |
| parent | x86, pat: Migrate to rbtree only backend for pat memtype management (diff) | |
| download | linux-4daa2a8093ecd1148270a1fc64e99f072b8c2901.tar.xz linux-4daa2a8093ecd1148270a1fc64e99f072b8c2901.zip | |
x86, pat: In rbt_memtype_check_insert(), update new->type only if valid
new->type should only change when there is a valid ret_type. Otherwise
the requested type and return type should be same.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
LKML-Reference: <20100224214355.GA16431@linux-os.sc.intel.com>
Tested-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/mm/pat_rbtree.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/mm/pat_rbtree.c b/arch/x86/mm/pat_rbtree.c index 9063f40b638b..07de4cb8cc30 100644 --- a/arch/x86/mm/pat_rbtree.c +++ b/arch/x86/mm/pat_rbtree.c @@ -223,7 +223,9 @@ int rbt_memtype_check_insert(struct memtype *new, unsigned long *ret_type) new->type, ret_type); if (!err) { - new->type = *ret_type; + if (ret_type) + new->type = *ret_type; + memtype_rb_insert(&memtype_rbroot, new); } return err; |