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btrfs: remove unused rcu-string printk helpers

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The RCU-string API has never taken off and we don't use the printk
helpers provided as we do the protection in our helpers. Remove the "in
RCU" wrappers.

Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2025-06-09 19:09:22 +02:00
parent d1d1c85427
commit ee3af49a05
2 changed files with 2 additions and 14 deletions
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4
fs/btrfs/messages.h
View File

@ -53,7 +53,7 @@ void _btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...);
btrfs_printk(fs_info, KERN_INFO fmt, ##args)
/*
* Wrappers that use printk_in_rcu
* Wrappers that use printk in RCU
*/
#define btrfs_emerg_in_rcu(fs_info, fmt, args...) \
btrfs_printk_in_rcu(fs_info, KERN_EMERG fmt, ##args)
@ -71,7 +71,7 @@ void _btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...);
btrfs_printk_in_rcu(fs_info, KERN_INFO fmt, ##args)
/*
* Wrappers that use a ratelimited printk_in_rcu
* Wrappers that use a ratelimited printk in RCU
*/
#define btrfs_emerg_rl_in_rcu(fs_info, fmt, args...) \
btrfs_printk_rl_in_rcu(fs_info, KERN_EMERG fmt, ##args)

12
fs/btrfs/rcu-string.h
View File

@ -32,18 +32,6 @@ static inline struct rcu_string *rcu_string_strdup(const char *src, gfp_t mask)
return ret;
}
#define printk_in_rcu(fmt, ...) do { \
rcu_read_lock(); \
printk(fmt, __VA_ARGS__); \
rcu_read_unlock(); \
} while (0)
#define printk_ratelimited_in_rcu(fmt, ...) do { \
rcu_read_lock(); \
printk_ratelimited(fmt, __VA_ARGS__); \
rcu_read_unlock(); \
} while (0)
#define rcu_str_deref(rcu_str) ({ \
struct rcu_string *__str = rcu_dereference(rcu_str); \
__str->str; \