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Commit f5c29bd9 authored by Liu Bo's avatar Liu Bo Committed by David Sterba
Browse files

Btrfs: add __init macro to btrfs init functions 



Adding __init macro gives kernel a hint that this function is only used
during the initialization phase and its memory resources can be freed up
after.

Signed-off-by: default avatarLiu Bo <bo.li.liu@oracle.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent c74a0b02

fs/btrfs/compression.h

+1 −1
Original line number Diff line number Diff line
@@ -75,7 +75,7 @@ struct compressed_bio { 
	u32 sums;

};



void btrfs_init_compress(void);

void __init btrfs_init_compress(void);

void btrfs_exit_compress(void);



int btrfs_compress_pages(unsigned int type_level, struct address_space *mapping,

fs/btrfs/ctree.h

+3 −3
Original line number Diff line number Diff line
@@ -3197,7 +3197,7 @@ int btrfs_write_inode(struct inode *inode, struct writeback_control *wbc); 
struct inode *btrfs_alloc_inode(struct super_block *sb);

void btrfs_destroy_inode(struct inode *inode);

int btrfs_drop_inode(struct inode *inode);

int btrfs_init_cachep(void);

int __init btrfs_init_cachep(void);

void btrfs_destroy_cachep(void);

long btrfs_ioctl_trans_end(struct file *file);

struct inode *btrfs_iget(struct super_block *s, struct btrfs_key *location,
@@ -3248,7 +3248,7 @@ ssize_t btrfs_dedupe_file_range(struct file *src_file, u64 loff, u64 olen, 
			   struct file *dst_file, u64 dst_loff);



/* file.c */

int btrfs_auto_defrag_init(void);

int __init btrfs_auto_defrag_init(void);

void btrfs_auto_defrag_exit(void);

int btrfs_add_inode_defrag(struct btrfs_trans_handle *trans,

			   struct btrfs_inode *inode);
@@ -3283,7 +3283,7 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans, 
			struct btrfs_root *root);



/* sysfs.c */

int btrfs_init_sysfs(void);

int __init btrfs_init_sysfs(void);

void btrfs_exit_sysfs(void);

int btrfs_sysfs_add_mounted(struct btrfs_fs_info *fs_info);

void btrfs_sysfs_remove_mounted(struct btrfs_fs_info *fs_info);

fs/btrfs/delayed-ref.c

+1 −1
Original line number Diff line number Diff line
@@ -937,7 +937,7 @@ void btrfs_delayed_ref_exit(void) 
	kmem_cache_destroy(btrfs_delayed_extent_op_cachep);

}



int btrfs_delayed_ref_init(void)

int __init btrfs_delayed_ref_init(void)

{

	btrfs_delayed_ref_head_cachep = kmem_cache_create(

				"btrfs_delayed_ref_head",

fs/btrfs/delayed-ref.h

+1 −1
Original line number Diff line number Diff line
@@ -203,7 +203,7 @@ extern struct kmem_cache *btrfs_delayed_tree_ref_cachep; 
extern struct kmem_cache *btrfs_delayed_data_ref_cachep;

extern struct kmem_cache *btrfs_delayed_extent_op_cachep;



int btrfs_delayed_ref_init(void);

int __init btrfs_delayed_ref_init(void);

void btrfs_delayed_ref_exit(void);



static inline struct btrfs_delayed_extent_op *

fs/btrfs/file.c

+1 −1
Original line number Diff line number Diff line
@@ -3143,7 +3143,7 @@ void btrfs_auto_defrag_exit(void) 
	kmem_cache_destroy(btrfs_inode_defrag_cachep);

}



int btrfs_auto_defrag_init(void)

int __init btrfs_auto_defrag_init(void)

{

	btrfs_inode_defrag_cachep = kmem_cache_create("btrfs_inode_defrag",

					sizeof(struct inode_defrag), 0,