Btrfs: corruption hunt continues
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/bit-radix.c b/fs/btrfs/bit-radix.c
index 43807cc..8454223 100644
--- a/fs/btrfs/bit-radix.c
+++ b/fs/btrfs/bit-radix.c
@@ -16,12 +16,14 @@
bits = radix_tree_lookup(radix, slot);
if (!bits) {
- bits = kmalloc(BIT_ARRAY_BYTES, GFP_NOIO);
+ bits = kmalloc(BIT_ARRAY_BYTES, GFP_NOFS);
if (!bits)
return -ENOMEM;
memset(bits + 1, 0, BIT_ARRAY_BYTES - sizeof(unsigned long));
bits[0] = slot;
+ radix_tree_preload(GFP_NOFS);
ret = radix_tree_insert(radix, slot, bits);
+ radix_tree_preload_end();
if (ret)
return ret;
}
@@ -59,7 +61,7 @@
if (!bits)
return 0;
clear_bit(bit_slot, bits + 1);
-
+#if 0
for (i = 1; i < BIT_ARRAY_BYTES / sizeof(unsigned long); i++) {
if (bits[i]) {
empty = 0;
@@ -69,8 +71,11 @@
if (empty) {
bits = radix_tree_delete(radix, slot);
+ synchronize_rcu();
BUG_ON(!bits);
+ kfree(bits);
}
+#endif
return 0;
}