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| author | David Sterba <dsterba@suse.com> | 2018-02-19 17:24:18 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-03-26 15:09:39 +0200 |
| commit | e67c718b5b9a306bde7e966be7b4ca48fa063d73 (patch) | |
| tree | 5b4905cba33483869094404c531cba4d30767780 /fs/btrfs/ctree.h | |
| parent | btrfs: add (the only possible) __exit annotation (diff) | |
| download | linux-e67c718b5b9a306bde7e966be7b4ca48fa063d73.tar.xz linux-e67c718b5b9a306bde7e966be7b4ca48fa063d73.zip | |
btrfs: add more __cold annotations
The __cold functions are placed to a special section, as they're
expected to be called rarely. This could help i-cache prefetches or help
compiler to decide which branches are more/less likely to be taken
without any other annotations needed.
Though we can't add more __exit annotations, it's still possible to add
__cold (that's also added with __exit). That way the following function
categories are tagged:
- printf wrappers, error messages
- exit helpers
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 92b9db7186bb..d6a2fc311187 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -3204,7 +3204,7 @@ struct inode *btrfs_alloc_inode(struct super_block *sb); void btrfs_destroy_inode(struct inode *inode); int btrfs_drop_inode(struct inode *inode); int __init btrfs_init_cachep(void); -void btrfs_destroy_cachep(void); +void __cold btrfs_destroy_cachep(void); long btrfs_ioctl_trans_end(struct file *file); struct inode *btrfs_iget(struct super_block *s, struct btrfs_key *location, struct btrfs_root *root, int *was_new); @@ -3255,7 +3255,7 @@ ssize_t btrfs_dedupe_file_range(struct file *src_file, u64 loff, u64 olen, /* file.c */ int __init btrfs_auto_defrag_init(void); -void btrfs_auto_defrag_exit(void); +void __cold btrfs_auto_defrag_exit(void); int btrfs_add_inode_defrag(struct btrfs_trans_handle *trans, struct btrfs_inode *inode); int btrfs_run_defrag_inodes(struct btrfs_fs_info *fs_info); @@ -3290,7 +3290,7 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans, /* sysfs.c */ int __init btrfs_init_sysfs(void); -void btrfs_exit_sysfs(void); +void __cold 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); @@ -3302,13 +3302,14 @@ int btrfs_parse_options(struct btrfs_fs_info *info, char *options, unsigned long new_flags); int btrfs_sync_fs(struct super_block *sb, int wait); -static inline __printf(2, 3) +static inline __printf(2, 3) __cold void btrfs_no_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...) { } #ifdef CONFIG_PRINTK __printf(2, 3) +__cold void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...); #else #define btrfs_printk(fs_info, fmt, args...) \ |