diff options
Diffstat (limited to 'fs/btrfs/bit-radix.c')
| -rw-r--r-- | fs/btrfs/bit-radix.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/btrfs/bit-radix.c b/fs/btrfs/bit-radix.c index 43807cc3cce..845422368f4 100644 --- a/fs/btrfs/bit-radix.c +++ b/fs/btrfs/bit-radix.c @@ -16,12 +16,14 @@ int set_radix_bit(struct radix_tree_root *radix, unsigned long bit) 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 @@ int clear_radix_bit(struct radix_tree_root *radix, unsigned long bit) 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 @@ int clear_radix_bit(struct radix_tree_root *radix, unsigned long bit) if (empty) { bits = radix_tree_delete(radix, slot); + synchronize_rcu(); BUG_ON(!bits); + kfree(bits); } +#endif return 0; } |