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srcu: Use "ssp" instead of "sp" for srcu_struct pointer

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In RCU, the distinction between "rsp", "rnp", and "rdp" has served well
for a great many years, but in SRCU, "sp" vs. "sdp" has proven confusing.
This commit therefore renames SRCU's "sp" pointers to "ssp", so that there
is "ssp" for srcu_struct pointer, "snp" for srcu_node pointer, and "sdp"
for srcu_data pointer.

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
This commit is contained in:
Paul E. McKenney 2018-10-28 10:32:51 -07:00
parent eb4c238227
commit aacb5d91ab
5 changed files with 359 additions and 359 deletions
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24
include/linux/srcutiny.h
View file

@ -60,7 +60,7 @@ void srcu_drive_gp(struct work_struct *wp);
#define DEFINE_STATIC_SRCU(name) \
static struct srcu_struct name = __SRCU_STRUCT_INIT(name, name)
void synchronize_srcu(struct srcu_struct *sp);
void synchronize_srcu(struct srcu_struct *ssp);
/*
* Counts the new reader in the appropriate per-CPU element of the
@ -68,36 +68,36 @@ void synchronize_srcu(struct srcu_struct *sp);
* __srcu_read_unlock() must be in the same handler instance. Returns an
* index that must be passed to the matching srcu_read_unlock().
*/
static inline int __srcu_read_lock(struct srcu_struct *sp)
static inline int __srcu_read_lock(struct srcu_struct *ssp)
{
int idx;
idx = READ_ONCE(sp->srcu_idx);
WRITE_ONCE(sp->srcu_lock_nesting[idx], sp->srcu_lock_nesting[idx] + 1);
idx = READ_ONCE(ssp->srcu_idx);
WRITE_ONCE(ssp->srcu_lock_nesting[idx], ssp->srcu_lock_nesting[idx] + 1);
return idx;
}
static inline void synchronize_srcu_expedited(struct srcu_struct *sp)
static inline void synchronize_srcu_expedited(struct srcu_struct *ssp)
{
synchronize_srcu(sp);
synchronize_srcu(ssp);
}
static inline void srcu_barrier(struct srcu_struct *sp)
static inline void srcu_barrier(struct srcu_struct *ssp)
{
synchronize_srcu(sp);
synchronize_srcu(ssp);
}
/* Defined here to avoid size increase for non-torture kernels. */
static inline void srcu_torture_stats_print(struct srcu_struct *sp,
static inline void srcu_torture_stats_print(struct srcu_struct *ssp,
char *tt, char *tf)
{
int idx;
idx = READ_ONCE(sp->srcu_idx) & 0x1;
idx = READ_ONCE(ssp->srcu_idx) & 0x1;
pr_alert("%s%s Tiny SRCU per-CPU(idx=%d): (%hd,%hd)\n",
tt, tf, idx,
READ_ONCE(sp->srcu_lock_nesting[!idx]),
READ_ONCE(sp->srcu_lock_nesting[idx]));
READ_ONCE(ssp->srcu_lock_nesting[!idx]),
READ_ONCE(ssp->srcu_lock_nesting[idx]));
}
#endif