From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 23 Jul 2020 12:11:49 +0200
Subject: seqcount: More consistent seqprop names
Patch-mainline: v5.9-rc1
Git-commit: b5e6a027bd327daa679ca55182a920659e2cbb90
References: bsc#1176564 bsc#1162702
Attempt uniformity and brevity.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
[dwagner: update context]
Acked-by: Daniel Wagner <dwagner@suse.de>
---
include/linux/seqlock.h | 52 ++++++++++++++++++++++++------------------------
1 file changed, 26 insertions(+), 26 deletions(-)
--- a/include/linux/seqlock.h
+++ b/include/linux/seqlock.h
@@ -231,9 +231,9 @@ SEQCOUNT_LOCKTYPE(struct ww_mutex, ww_mu
__seqprop_case((s), mutex, prop), \
__seqprop_case((s), ww_mutex, prop))
-#define __to_seqcount_t(s) __seqprop(s, ptr)
-#define __associated_lock_exists_and_is_preemptible(s) __seqprop(s, preemptible)
-#define __assert_write_section_is_protected(s) __seqprop(s, assert)
+#define __seqcount_ptr(s) __seqprop(s, ptr)
+#define __seqcount_lock_preemptible(s) __seqprop(s, preemptible)
+#define __seqcount_assert_lock_held(s) __seqprop(s, assert)
/**
* __read_seqcount_begin() - begin a seqcount_t read section w/o barrier
@@ -250,7 +250,7 @@ SEQCOUNT_LOCKTYPE(struct ww_mutex, ww_mu
* Return: count to be passed to read_seqcount_retry()
*/
#define __read_seqcount_begin(s) \
- __read_seqcount_t_begin(__to_seqcount_t(s))
+ __read_seqcount_t_begin(__seqcount_ptr(s))
static inline unsigned __read_seqcount_t_begin(const seqcount_t *s)
{
@@ -272,7 +272,7 @@ static inline unsigned __read_seqcount_t
* Return: count to be passed to read_seqcount_retry()
*/
#define raw_read_seqcount_begin(s) \
- raw_read_seqcount_t_begin(__to_seqcount_t(s))
+ raw_read_seqcount_t_begin(__seqcount_ptr(s))
static inline unsigned raw_read_seqcount_t_begin(const seqcount_t *s)
{
@@ -288,7 +288,7 @@ static inline unsigned raw_read_seqcount
* Return: count to be passed to read_seqcount_retry()
*/
#define read_seqcount_begin(s) \
- read_seqcount_t_begin(__to_seqcount_t(s))
+ read_seqcount_t_begin(__seqcount_ptr(s))
static inline unsigned read_seqcount_t_begin(const seqcount_t *s)
{
@@ -308,7 +308,7 @@ static inline unsigned read_seqcount_t_b
* Return: count to be passed to read_seqcount_retry()
*/
#define raw_read_seqcount(s) \
- raw_read_seqcount_t(__to_seqcount_t(s))
+ raw_read_seqcount_t(__seqcount_ptr(s))
static inline unsigned raw_read_seqcount_t(const seqcount_t *s)
{
@@ -335,7 +335,7 @@ static inline unsigned raw_read_seqcount
* Return: count to be passed to read_seqcount_retry()
*/
#define raw_seqcount_begin(s) \
- raw_seqcount_t_begin(__to_seqcount_t(s))
+ raw_seqcount_t_begin(__seqcount_ptr(s))
static inline unsigned raw_seqcount_t_begin(const seqcount_t *s)
{
@@ -362,7 +362,7 @@ static inline unsigned raw_seqcount_t_be
* Return: true if a read section retry is required, else false
*/
#define __read_seqcount_retry(s, start) \
- __read_seqcount_t_retry(__to_seqcount_t(s), start)
+ __read_seqcount_t_retry(__seqcount_ptr(s), start)
static inline int __read_seqcount_t_retry(const seqcount_t *s, unsigned start)
{
@@ -381,7 +381,7 @@ static inline int __read_seqcount_t_retr
* Return: true if a read section retry is required, else false
*/
#define read_seqcount_retry(s, start) \
- read_seqcount_t_retry(__to_seqcount_t(s), start)
+ read_seqcount_t_retry(__seqcount_ptr(s), start)
static inline int read_seqcount_t_retry(const seqcount_t *s, unsigned start)
{
smp_rmb();
@@ -394,10 +394,10 @@ static inline int read_seqcount_t_retry(
*/
#define raw_write_seqcount_begin(s) \
do { \
- if (__associated_lock_exists_and_is_preemptible(s)) \
+ if (__seqcount_lock_preemptible(s)) \
preempt_disable(); \
\
- raw_write_seqcount_t_begin(__to_seqcount_t(s)); \
+ raw_write_seqcount_t_begin(__seqcount_ptr(s)); \
} while (0)
static inline void raw_write_seqcount_t_begin(seqcount_t *s)
@@ -412,9 +412,9 @@ static inline void raw_write_seqcount_t_
*/
#define raw_write_seqcount_end(s) \
do { \
- raw_write_seqcount_t_end(__to_seqcount_t(s)); \
+ raw_write_seqcount_t_end(__seqcount_ptr(s)); \
\
- if (__associated_lock_exists_and_is_preemptible(s)) \
+ if (__seqcount_lock_preemptible(s)) \
preempt_enable(); \
} while (0)
@@ -466,7 +466,7 @@ static inline void raw_write_seqcount_t_
* }
*/
#define raw_write_seqcount_barrier(s) \
- raw_write_seqcount_t_barrier(__to_seqcount_t(s))
+ raw_write_seqcount_t_barrier(__seqcount_ptr(s))
static inline void raw_write_seqcount_t_barrier(seqcount_t *s)
{
@@ -484,7 +484,7 @@ static inline void raw_write_seqcount_t_
* will complete successfully and see data older than this.
*/
#define write_seqcount_invalidate(s) \
- write_seqcount_t_invalidate(__to_seqcount_t(s))
+ write_seqcount_t_invalidate(__seqcount_ptr(s))
static inline void write_seqcount_t_invalidate(seqcount_t *s)
{
@@ -508,7 +508,7 @@ static inline void write_seqcount_t_inva
* checked with read_seqcount_retry().
*/
#define raw_read_seqcount_latch(s) \
- raw_read_seqcount_t_latch(__to_seqcount_t(s))
+ raw_read_seqcount_t_latch(__seqcount_ptr(s))
static inline int raw_read_seqcount_t_latch(seqcount_t *s)
{
@@ -599,7 +599,7 @@ static inline int raw_read_seqcount_t_la
* patterns to manage the lifetimes of the objects within.
*/
#define raw_write_seqcount_latch(s) \
- raw_write_seqcount_t_latch(__to_seqcount_t(s))
+ raw_write_seqcount_t_latch(__seqcount_ptr(s))
static inline void raw_write_seqcount_t_latch(seqcount_t *s)
{
@@ -618,12 +618,12 @@ static inline void raw_write_seqcount_t_
*/
#define write_seqcount_begin_nested(s, subclass) \
do { \
- __assert_write_section_is_protected(s); \
+ __seqcount_assert_lock_held(s); \
\
- if (__associated_lock_exists_and_is_preemptible(s)) \
+ if (__seqcount_lock_preemptible(s)) \
preempt_disable(); \
\
- write_seqcount_t_begin_nested(__to_seqcount_t(s), subclass); \
+ write_seqcount_t_begin_nested(__seqcount_ptr(s), subclass); \
} while (0)
static inline void write_seqcount_t_begin_nested(seqcount_t *s, int subclass)
@@ -645,12 +645,12 @@ static inline void write_seqcount_t_begi
*/
#define write_seqcount_begin(s) \
do { \
- __assert_write_section_is_protected(s); \
+ __seqcount_assert_lock_held(s); \
\
- if (__associated_lock_exists_and_is_preemptible(s)) \
+ if (__seqcount_lock_preemptible(s)) \
preempt_disable(); \
\
- write_seqcount_t_begin(__to_seqcount_t(s)); \
+ write_seqcount_t_begin(__seqcount_ptr(s)); \
} while (0)
static inline void write_seqcount_t_begin(seqcount_t *s)
@@ -666,9 +666,9 @@ static inline void write_seqcount_t_begi
*/
#define write_seqcount_end(s) \
do { \
- write_seqcount_t_end(__to_seqcount_t(s)); \
+ write_seqcount_t_end(__seqcount_ptr(s)); \
\
- if (__associated_lock_exists_and_is_preemptible(s)) \
+ if (__seqcount_lock_preemptible(s)) \
preempt_enable(); \
} while (0)