struct radix_tree_root has unused upper bits of ->gfp_mask reused for
tags bitmap. Annotated.
Signed-off-by: Al Viro <[email protected]>
---
lib/radix-tree.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index 637d556..aa9bfd0 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -160,13 +160,13 @@ static inline int tag_get(struct radix_t
static inline void root_tag_set(struct radix_tree_root *root, unsigned int tag)
{
- root->gfp_mask |= (1 << (tag + __GFP_BITS_SHIFT));
+ root->gfp_mask |= (__force gfp_t)(1 << (tag + __GFP_BITS_SHIFT));
}
static inline void root_tag_clear(struct radix_tree_root *root, unsigned int tag)
{
- root->gfp_mask &= ~(1 << (tag + __GFP_BITS_SHIFT));
+ root->gfp_mask &= (__force gfp_t)~(1 << (tag + __GFP_BITS_SHIFT));
}
static inline void root_tag_clear_all(struct radix_tree_root *root)
@@ -176,7 +176,7 @@ static inline void root_tag_clear_all(st
static inline int root_tag_get(struct radix_tree_root *root, unsigned int tag)
{
- return root->gfp_mask & (1 << (tag + __GFP_BITS_SHIFT));
+ return (__force unsigned)root->gfp_mask & (1 << (tag + __GFP_BITS_SHIFT));
}
/*
--
1.4.2.GIT
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
