Btrfs: release space on error in page_mkwrite

[firefly-linux-kernel-4.4.55.git] / fs / btrfs / inode.c

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 5f8ba210c0aaefbc91367ab233cd47bfcc0e589d..85fd86ea98308c3322ead1267b600433607946df 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -3009,7 +3009,6 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
        int pending_del_nr = 0;
        int pending_del_slot = 0;
        int extent_type = -1;
-       int encoding;
        int ret;
        int err = 0;
        u64 ino = btrfs_ino(inode);
@@ -3059,7 +3058,6 @@ search_again:
                leaf = path->nodes[0];
                btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);
                found_type = btrfs_key_type(&found_key);
-               encoding = 0;
 
                if (found_key.objectid != ino)
                        break;
@@ -3072,10 +3070,6 @@ search_again:
                        fi = btrfs_item_ptr(leaf, path->slots[0],
                                            struct btrfs_file_extent_item);
                        extent_type = btrfs_file_extent_type(leaf, fi);
-                       encoding = btrfs_file_extent_compression(leaf, fi);
-                       encoding |= btrfs_file_extent_encryption(leaf, fi);
-                       encoding |= btrfs_file_extent_other_encoding(leaf, fi);
-
                        if (extent_type != BTRFS_FILE_EXTENT_INLINE) {
                                item_end +=
                                    btrfs_file_extent_num_bytes(leaf, fi);
@@ -3103,7 +3097,7 @@ search_again:
                if (extent_type != BTRFS_FILE_EXTENT_INLINE) {
                        u64 num_dec;
                        extent_start = btrfs_file_extent_disk_bytenr(leaf, fi);
-                       if (!del_item && !encoding) {
+                       if (!del_item) {
                                u64 orig_num_bytes =
                                        btrfs_file_extent_num_bytes(leaf, fi);
                                extent_num_bytes = new_size -
@@ -6494,8 +6488,8 @@ out_unlock:
        if (!ret)
                return VM_FAULT_LOCKED;
        unlock_page(page);
-       btrfs_delalloc_release_space(inode, PAGE_CACHE_SIZE);
 out:
+       btrfs_delalloc_release_space(inode, PAGE_CACHE_SIZE);
        return ret;
 }