Btrfs: Abstract similar code for btrfs_block_rsv_add{, _noflush}
btrfs_block_rsv_add{, _noflush}() have similar code, so abstract that code.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 0b044e5..0f47b3e 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3796,16 +3796,16 @@
kfree(rsv);
}
-int btrfs_block_rsv_add(struct btrfs_root *root,
- struct btrfs_block_rsv *block_rsv,
- u64 num_bytes)
+static inline int __block_rsv_add(struct btrfs_root *root,
+ struct btrfs_block_rsv *block_rsv,
+ u64 num_bytes, int flush)
{
int ret;
if (num_bytes == 0)
return 0;
- ret = reserve_metadata_bytes(root, block_rsv, num_bytes, 1);
+ ret = reserve_metadata_bytes(root, block_rsv, num_bytes, flush);
if (!ret) {
block_rsv_add_bytes(block_rsv, num_bytes, 1);
return 0;
@@ -3814,22 +3814,18 @@
return ret;
}
+int btrfs_block_rsv_add(struct btrfs_root *root,
+ struct btrfs_block_rsv *block_rsv,
+ u64 num_bytes)
+{
+ return __block_rsv_add(root, block_rsv, num_bytes, 1);
+}
+
int btrfs_block_rsv_add_noflush(struct btrfs_root *root,
struct btrfs_block_rsv *block_rsv,
u64 num_bytes)
{
- int ret;
-
- if (num_bytes == 0)
- return 0;
-
- ret = reserve_metadata_bytes(root, block_rsv, num_bytes, 0);
- if (!ret) {
- block_rsv_add_bytes(block_rsv, num_bytes, 1);
- return 0;
- }
-
- return ret;
+ return __block_rsv_add(root, block_rsv, num_bytes, 0);
}
int btrfs_block_rsv_check(struct btrfs_root *root,