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| author |   Jason A. Donenfeld <Jason@zx2c4.com> | 2022-10-03 20:14:13 +0200 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2022-10-03 17:34:32 -0700 |
| commit | 2a4187f4406ec3236f8b9d0d5150d2bf8d021b68 (patch) | |
| tree | f0bb31b4ae8064a3c90c97e39acbdf2b74d24911 /include/linux/once.h | |
| parent | Merge branch 'add-generic-pse-support' (diff) | |
| download | linux-dev-2a4187f4406ec3236f8b9d0d5150d2bf8d021b68.tar.xz linux-dev-2a4187f4406ec3236f8b9d0d5150d2bf8d021b68.zip | |
once: rename _SLOW to _SLEEPABLE
The _SLOW designation wasn't really descriptive of anything. This is
meant to be called from process context when it's possible to sleep. So
name this more aptly _SLEEPABLE, which better fits its intended use.
Fixes: 62c07983bef9 ("once: add DO_ONCE_SLOW() for sleepable contexts")
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20221003181413.1221968-1-Jason@zx2c4.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux/once.h')
| -rw-r--r-- | include/linux/once.h | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/include/linux/once.h b/include/linux/once.h index 176ab75b42df..bc714d414448 100644 --- a/include/linux/once.h +++ b/include/linux/once.h @@ -13,9 +13,9 @@ void __do_once_done(bool *done, struct static_key_true *once_key, unsigned long *flags, struct module *mod); /* Variant for process contexts only. */ -bool __do_once_slow_start(bool *done); -void __do_once_slow_done(bool *done, struct static_key_true *once_key, - struct module *mod); +bool __do_once_sleepable_start(bool *done); +void __do_once_sleepable_done(bool *done, struct static_key_true *once_key, + struct module *mod); /* Call a function exactly once. The idea of DO_ONCE() is to perform * a function call such as initialization of random seeds, etc, only @@ -61,26 +61,26 @@ void __do_once_slow_done(bool *done, struct static_key_true *once_key, }) /* Variant of DO_ONCE() for process/sleepable contexts. */ -#define DO_ONCE_SLOW(func, ...) \ - ({ \ - bool ___ret = false; \ - static bool __section(".data.once") ___done = false; \ - static DEFINE_STATIC_KEY_TRUE(___once_key); \ - if (static_branch_unlikely(&___once_key)) { \ - ___ret = __do_once_slow_start(&___done); \ - if (unlikely(___ret)) { \ - func(__VA_ARGS__); \ - __do_once_slow_done(&___done, &___once_key, \ - THIS_MODULE); \ - } \ - } \ - ___ret; \ +#define DO_ONCE_SLEEPABLE(func, ...) \ + ({ \ + bool ___ret = false; \ + static bool __section(".data.once") ___done = false; \ + static DEFINE_STATIC_KEY_TRUE(___once_key); \ + if (static_branch_unlikely(&___once_key)) { \ + ___ret = __do_once_sleepable_start(&___done); \ + if (unlikely(___ret)) { \ + func(__VA_ARGS__); \ + __do_once_sleepable_done(&___done, &___once_key,\ + THIS_MODULE); \ + } \ + } \ + ___ret; \ }) #define get_random_once(buf, nbytes) \ DO_ONCE(get_random_bytes, (buf), (nbytes)) -#define get_random_slow_once(buf, nbytes) \ - DO_ONCE_SLOW(get_random_bytes, (buf), (nbytes)) +#define get_random_sleepable_once(buf, nbytes) \ + DO_ONCE_SLEEPABLE(get_random_bytes, (buf), (nbytes)) #endif /* _LINUX_ONCE_H */ |