From f5c29bd9dbd3e90e03ab7697ecc373b49394e62e Mon Sep 17 00:00:00 2001 From: Liu Bo Date: Thu, 2 Nov 2017 17:21:50 -0600 Subject: [PATCH] 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: Liu Bo Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/compression.h | 2 +- fs/btrfs/ctree.h | 6 +++--- fs/btrfs/delayed-ref.c | 2 +- fs/btrfs/delayed-ref.h | 2 +- fs/btrfs/file.c | 2 +- fs/btrfs/inode.c | 2 +- fs/btrfs/super.c | 4 ++-- fs/btrfs/sysfs.c | 2 +- 8 files changed, 11 insertions(+), 11 deletions(-) diff --git a/fs/btrfs/compression.h b/fs/btrfs/compression.h index 0868cc554f14..6b692903a23c 100644 --- a/fs/btrfs/compression.h +++ b/fs/btrfs/compression.h @@ -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, diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 13c260b525a1..a56d00311578 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -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); diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c index 83be8f9fd906..a1a40cf382e3 100644 --- a/fs/btrfs/delayed-ref.c +++ b/fs/btrfs/delayed-ref.c @@ -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", diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h index a43af432f859..c4f625e5a691 100644 --- a/fs/btrfs/delayed-ref.h +++ b/fs/btrfs/delayed-ref.h @@ -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 * diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 559d716221df..d1eba3394660 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -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, diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 2bab93f20328..c8a3e84d7114 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -9569,7 +9569,7 @@ void btrfs_destroy_cachep(void) kmem_cache_destroy(btrfs_free_space_cachep); } -int btrfs_init_cachep(void) +int __init btrfs_init_cachep(void) { btrfs_inode_cachep = kmem_cache_create("btrfs_inode", sizeof(struct btrfs_inode), 0, diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 3a4dce153645..7a7abe827ac4 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -2324,7 +2324,7 @@ static struct miscdevice btrfs_misc = { MODULE_ALIAS_MISCDEV(BTRFS_MINOR); MODULE_ALIAS("devname:btrfs-control"); -static int btrfs_interface_init(void) +static int __init btrfs_interface_init(void) { return misc_register(&btrfs_misc); } @@ -2334,7 +2334,7 @@ static void btrfs_interface_exit(void) misc_deregister(&btrfs_misc); } -static void btrfs_print_mod_info(void) +static void __init btrfs_print_mod_info(void) { pr_info("Btrfs loaded, crc32c=%s" #ifdef CONFIG_BTRFS_DEBUG diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index a28bba801264..a8bafed931f4 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -897,7 +897,7 @@ static int btrfs_init_debugfs(void) return 0; } -int btrfs_init_sysfs(void) +int __init btrfs_init_sysfs(void) { int ret; -- 2.11.0