Btrfs: Fix checkpatch.pl warnings

There were many, most are fixed now.  struct-funcs.c generates some warnings
but these are bogus.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

fs/btrfs/acl.c

@@ -161,8 +161,7 @@ static int btrfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 	ret = __btrfs_setxattr(inode, name, value, size, 0);
 
 out:
-	if (value)
-		kfree(value);
+	kfree(value);
 
 	if (!ret)
 		btrfs_update_cached_acl(inode, p_acl, acl);
@@ -213,7 +212,7 @@ static int btrfs_xattr_acl_default_get(struct inode *inode, const char *name,
 }
 
 static int btrfs_xattr_acl_default_set(struct inode *inode, const char *name,
-				       const void *value, size_t size, int flags)
+			       const void *value, size_t size, int flags)
 {
 	return btrfs_xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size);
 }

fs/btrfs/async-thread.c

@@ -104,7 +104,7 @@ static noinline int run_ordered_completions(struct btrfs_workers *workers,
 
 	spin_lock_irqsave(&workers->lock, flags);
 
-	while(!list_empty(&workers->order_list)) {
+	while (!list_empty(&workers->order_list)) {
 		work = list_entry(workers->order_list.next,
 				  struct btrfs_work, order_list);
 
@@ -143,7 +143,7 @@ static int worker_loop(void *arg)
 	struct btrfs_work *work;
 	do {
 		spin_lock_irq(&worker->lock);
-		while(!list_empty(&worker->pending)) {
+		while (!list_empty(&worker->pending)) {
 			cur = worker->pending.next;
 			work = list_entry(cur, struct btrfs_work, list);
 			list_del(&work->list);
@@ -188,7 +188,7 @@ int btrfs_stop_workers(struct btrfs_workers *workers)
 	struct btrfs_worker_thread *worker;
 
 	list_splice_init(&workers->idle_list, &workers->worker_list);
-	while(!list_empty(&workers->worker_list)) {
+	while (!list_empty(&workers->worker_list)) {
 		cur = workers->worker_list.next;
 		worker = list_entry(cur, struct btrfs_worker_thread,
 				    worker_list);

fs/btrfs/compat.h

@@ -4,7 +4,7 @@
 #define btrfs_drop_nlink(inode) drop_nlink(inode)
 #define btrfs_inc_nlink(inode)	inc_nlink(inode)
 
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,27)
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 27)
 static inline struct dentry *d_obtain_alias(struct inode *inode)
 {
 	struct dentry *d;
@@ -21,7 +21,7 @@ static inline struct dentry *d_obtain_alias(struct inode *inode)
 }
 #endif
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 28)
 # define  __pagevec_lru_add_file __pagevec_lru_add
 # define open_bdev_exclusive open_bdev_excl
 # define close_bdev_exclusive(bdev, mode) close_bdev_excl(bdev)

fs/btrfs/compression.c

@@ -137,7 +137,8 @@ static int check_compressed_csum(struct inode *inode,
 		kunmap_atomic(kaddr, KM_USER0);
 
 		if (csum != *cb_sum) {
-			printk("btrfs csum failed ino %lu extent %llu csum %u "
+			printk(KERN_INFO "btrfs csum failed ino %lu "
+			       "extent %llu csum %u "
 			       "wanted %u mirror %d\n", inode->i_ino,
 			       (unsigned long long)disk_start,
 			       csum, *cb_sum, cb->mirror_num);
@@ -217,7 +218,7 @@ static void end_compressed_bio_read(struct bio *bio, int err)
 		 * we have verified the checksum already, set page
 		 * checked so the end_io handlers know about it
 		 */
-		while(bio_index < cb->orig_bio->bi_vcnt) {
+		while (bio_index < cb->orig_bio->bi_vcnt) {
 			SetPageChecked(bvec->bv_page);
 			bvec++;
 			bio_index++;
@@ -246,7 +247,7 @@ static noinline int end_compressed_writeback(struct inode *inode, u64 start,
 	int i;
 	int ret;
 
-	while(nr_pages > 0) {
+	while (nr_pages > 0) {
 		ret = find_get_pages_contig(inode->i_mapping, index,
 				     min_t(unsigned long,
 				     nr_pages, ARRAY_SIZE(pages)), pages);
@@ -463,7 +464,7 @@ static noinline int add_ra_bio_pages(struct inode *inode,
 	end_index = (i_size_read(inode) - 1) >> PAGE_CACHE_SHIFT;
 
 	pagevec_init(&pvec, 0);
-	while(last_offset < compressed_end) {
+	while (last_offset < compressed_end) {
 		page_index = last_offset >> PAGE_CACHE_SHIFT;
 
 		if (page_index > end_index)
@@ -697,9 +698,8 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
 	ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio, 0);
 	BUG_ON(ret);
 
-	if (!btrfs_test_flag(inode, NODATASUM)) {
+	if (!btrfs_test_flag(inode, NODATASUM))
 		btrfs_lookup_bio_sums(root, inode, comp_bio, sums);
-	}
 
 	ret = btrfs_map_bio(root, READ, comp_bio, mirror_num, 0);
 	BUG_ON(ret);