f2fs: adjust unlock order for cleanup

This patch adjusts unlock order of .i_mmap_sem and .i_gc_rwsem for
cleanup.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/file.c

@@ -3497,8 +3497,8 @@ static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
 		released_blocks += ret;
 	}
 
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 	up_write(&F2FS_I(inode)->i_mmap_sem);
+	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 out:
 	inode_unlock(inode);
 
@@ -3650,8 +3650,8 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
 		reserved_blocks += ret;
 	}
 
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 	up_write(&F2FS_I(inode)->i_mmap_sem);
+	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 
 	if (ret >= 0) {
 		clear_inode_flag(inode, FI_COMPRESS_RELEASED);