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Diffstat (limited to 'drivers/staging/zcache')
-rw-r--r--drivers/staging/zcache/zbud.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/staging/zcache/zbud.c b/drivers/staging/zcache/zbud.c
index a7c436127aa1..6835fab5d116 100644
--- a/drivers/staging/zcache/zbud.c
+++ b/drivers/staging/zcache/zbud.c
@@ -103,8 +103,8 @@ struct zbudpage {
struct {
unsigned long space_for_flags;
struct {
- unsigned zbud0_size:12;
- unsigned zbud1_size:12;
+ unsigned zbud0_size: PAGE_SHIFT;
+ unsigned zbud1_size: PAGE_SHIFT;
unsigned unevictable:2;
};
struct list_head budlist;
@@ -112,6 +112,9 @@ struct zbudpage {
};
};
};
+#if (PAGE_SHIFT * 2) + 2 > BITS_PER_LONG
+#error "zbud won't work for this arch, PAGE_SIZE is too large"
+#endif
struct zbudref {
union {