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Bump struct thread alignment to 32.

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This gives additional bits to use in locking primitives which store
the lock thread pointer in the lock value.

Discussed with:	kib
This commit is contained in:
Mateusz Guzik 2017-02-07 17:03:22 +00:00
parent 3c798b2b1f
commit f743ea9638
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=313391
2 changed files with 2 additions and 2 deletions
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2
sys/kern/init_main.c
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@ -99,7 +99,7 @@ void mi_startup(void); /* Should be elsewhere */
static struct session session0;
static struct pgrp pgrp0;
struct proc proc0;
struct thread0_storage thread0_st __aligned(16);
struct thread0_storage thread0_st __aligned(32);
struct vmspace vmspace0;
struct proc *initproc;

2
sys/kern/kern_thread.c
View File

@ -281,7 +281,7 @@ threadinit(void)
thread_zone = uma_zcreate("THREAD", sched_sizeof_thread(),
thread_ctor, thread_dtor, thread_init, thread_fini,
16 - 1, UMA_ZONE_NOFREE);
32 - 1, UMA_ZONE_NOFREE);
tidhashtbl = hashinit(maxproc / 2, M_TIDHASH, &tidhash);
rw_init(&tidhash_lock, "tidhash");
}