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Date:   Sat, 10 Mar 2018 21:14:06 -0500
From:   "Theodore Y. Ts'o" <tytso@....edu>
To:     Andiry Xu <jix024@....ucsd.edu>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-nvdimm@...ts.01.org, dan.j.williams@...el.com,
        andy.rudoff@...el.com, coughlan@...hat.com, swanson@...ucsd.edu,
        david@...morbit.com, jack@...e.com, swhiteho@...hat.com,
        miklos@...redi.hu, andiry.xu@...il.com,
        Andiry Xu <jix024@...ucsd.edu>
Subject: Re: [RFC v2 00/83] NOVA: a new file system for persistent memory

FYI, your patch set doesn't even compile for me without these fixups.
I'm not sure why you were trying to declare inline functions in a
header file without the function body?

						- Ted

diff --git a/fs/nova/balloc.c b/fs/nova/balloc.c
index 8e992156f28c..9c7b74aa712e 100644
--- a/fs/nova/balloc.c
+++ b/fs/nova/balloc.c
@@ -74,12 +74,12 @@ static void nova_init_free_list(struct super_block *sb,
 		free_list->block_end -= sbi->tail_reserved_blocks;
 }
 
-inline struct nova_range_node *nova_alloc_blocknode(struct super_block *sb)
+struct nova_range_node *nova_alloc_blocknode(struct super_block *sb)
 {
 	return nova_alloc_range_node(sb);
 }
 
-inline void nova_free_blocknode(struct super_block *sb,
+void nova_free_blocknode(struct super_block *sb,
 	struct nova_range_node *node)
 {
 	nova_free_range_node(node);
@@ -206,7 +206,7 @@ int nova_insert_range_node(struct rb_root *tree,
 	return 0;
 }
 
-inline int nova_insert_blocktree(struct nova_sb_info *sbi,
+int nova_insert_blocktree(struct nova_sb_info *sbi,
 	struct rb_root *tree, struct nova_range_node *new_node)
 {
 	int ret;
@@ -659,7 +659,7 @@ static int nova_new_blocks(struct super_block *sb, unsigned long *blocknr,
 
 // Allocate data blocks.  The offset for the allocated block comes back in
 // blocknr.  Return the number of blocks allocated.
-inline int nova_new_data_blocks(struct super_block *sb,
+int nova_new_data_blocks(struct super_block *sb,
 	struct nova_inode_info_header *sih, unsigned long *blocknr,
 	unsigned long start_blk, unsigned int num,
 	enum nova_alloc_init zero, int cpu,
diff --git a/fs/nova/balloc.h b/fs/nova/balloc.h
index 463fbac99eff..aca7e8c18dde 100644
--- a/fs/nova/balloc.h
+++ b/fs/nova/balloc.h
@@ -62,18 +62,18 @@ enum alloc_type {
 
 int nova_alloc_block_free_lists(struct super_block *sb);
 void nova_delete_free_lists(struct super_block *sb);
-inline struct nova_range_node *nova_alloc_blocknode(struct super_block *sb);
-inline void nova_free_blocknode(struct super_block *sb,
+struct nova_range_node *nova_alloc_blocknode(struct super_block *sb);
+void nova_free_blocknode(struct super_block *sb,
 	struct nova_range_node *bnode);
 extern void nova_init_blockmap(struct super_block *sb, int recovery);
 extern unsigned long nova_count_free_blocks(struct super_block *sb);
-inline int nova_insert_blocktree(struct nova_sb_info *sbi,
+int nova_insert_blocktree(struct nova_sb_info *sbi,
 	struct rb_root *tree, struct nova_range_node *new_node);
 extern int nova_free_data_blocks(struct super_block *sb,
 	struct nova_inode_info_header *sih, unsigned long blocknr, int num);
 extern int nova_free_log_blocks(struct super_block *sb,
 	struct nova_inode_info_header *sih, unsigned long blocknr, int num);
-extern inline int nova_new_data_blocks(struct super_block *sb,
+extern int nova_new_data_blocks(struct super_block *sb,
 	struct nova_inode_info_header *sih, unsigned long *blocknr,
 	unsigned long start_blk, unsigned int num,
 	enum nova_alloc_init zero, int cpu,
diff --git a/fs/nova/inode.c b/fs/nova/inode.c
index 21be31a05d26..31ef258978ba 100644
--- a/fs/nova/inode.c
+++ b/fs/nova/inode.c
@@ -440,7 +440,7 @@ struct inode *nova_iget(struct super_block *sb, unsigned long ino)
 	return ERR_PTR(err);
 }
 
-inline int nova_insert_inodetree(struct nova_sb_info *sbi,
+int nova_insert_inodetree(struct nova_sb_info *sbi,
 	struct nova_range_node *new_node, int cpu)
 {
 	struct rb_root *tree;
diff --git a/fs/nova/inode.h b/fs/nova/inode.h
index 086a7cba8ac3..1097e15ff7af 100644
--- a/fs/nova/inode.h
+++ b/fs/nova/inode.h
@@ -254,7 +254,7 @@ int nova_init_inode_table(struct super_block *sb);
 int nova_get_inode_address(struct super_block *sb, u64 ino,
 	u64 *pi_addr, int extendable);
 struct inode *nova_iget(struct super_block *sb, unsigned long ino);
-inline int nova_insert_inodetree(struct nova_sb_info *sbi,
+int nova_insert_inodetree(struct nova_sb_info *sbi,
 	struct nova_range_node *new_node, int cpu);
 u64 nova_new_nova_inode(struct super_block *sb, u64 *pi_addr);
 struct inode *nova_new_vfs_inode(enum nova_new_inode_type type,
diff --git a/fs/nova/super.c b/fs/nova/super.c
index 039c003b698b..9f06ec847c95 100644
--- a/fs/nova/super.c
+++ b/fs/nova/super.c
@@ -795,23 +795,23 @@ static void nova_put_super(struct super_block *sb)
 	sb->s_fs_info = NULL;
 }
 
-inline void nova_free_range_node(struct nova_range_node *node)
+void nova_free_range_node(struct nova_range_node *node)
 {
 	kmem_cache_free(nova_range_node_cachep, node);
 }
 
-inline void nova_free_inode_node(struct super_block *sb,
+void nova_free_inode_node(struct super_block *sb,
 	struct nova_range_node *node)
 {
 	nova_free_range_node(node);
 }
 
-inline void nova_free_file_write_item(struct nova_file_write_item *item)
+void nova_free_file_write_item(struct nova_file_write_item *item)
 {
 	kmem_cache_free(nova_file_write_item_cachep, item);
 }
 
-inline struct nova_file_write_item *
+struct nova_file_write_item *
 nova_alloc_file_write_item(struct super_block *sb)
 {
 	struct nova_file_write_item *p;
diff --git a/fs/nova/super.h b/fs/nova/super.h
index bcbe862ac914..dc98346266e1 100644
--- a/fs/nova/super.h
+++ b/fs/nova/super.h
@@ -160,11 +160,11 @@ static inline struct nova_super_block *nova_get_super(struct super_block *sb)
 
 extern void nova_error_mng(struct super_block *sb, const char *fmt, ...);
 extern struct nova_range_node *nova_alloc_range_node(struct super_block *sb);
-extern inline struct nova_range_node *nova_alloc_inode_node(struct super_block *sb);
+extern struct nova_range_node *nova_alloc_inode_node(struct super_block *sb);
 extern struct nova_file_write_item *
 nova_alloc_file_write_item(struct super_block *sb);
 extern void nova_free_range_node(struct nova_range_node *node);
-extern inline void nova_free_inode_node(struct super_block *sb,
+extern void nova_free_inode_node(struct super_block *sb,
 	struct nova_range_node *node);
 void nova_free_file_write_item(struct nova_file_write_item *item);

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