X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=lib%2Flibzpool%2Finclude%2Fsys%2Fzfs_context.h;h=5dd64b7c6ac7bd41d3239e6d82f16ee0303a69b3;hb=f1fb119f6bb0c3185ec88912e4488fdd9ec08ab2;hp=fc543559bd39e7fb34b23dc7ba86b52b1c755c16;hpb=572e285762521df27fe5b026f409ba1a21abb7ac;p=zfs.git diff --git a/lib/libzpool/include/sys/zfs_context.h b/lib/libzpool/include/sys/zfs_context.h index fc54355..5dd64b7 100644 --- a/lib/libzpool/include/sys/zfs_context.h +++ b/lib/libzpool/include/sys/zfs_context.h @@ -49,8 +49,7 @@ extern "C" { #include #include #include -#include -#include +#include #include #include #include @@ -58,7 +57,6 @@ extern "C" { #include #include #include -#include #include #include #include @@ -72,11 +70,16 @@ extern "C" { #include #include #include -#include -#include +#include #include /* + * Stack + */ + +#define noinline __attribute__((noinline)) + +/* * Debugging */ @@ -90,6 +93,8 @@ extern "C" { #define CE_PANIC 3 /* panic */ #define CE_IGNORE 4 /* print nothing */ +extern int aok; + /* * ZFS debugging */ @@ -105,62 +110,6 @@ extern void vpanic(const char *, __va_list); #define fm_panic panic -extern int aok; - -/* This definition is copied from assert.h. */ -#if defined(__STDC__) -#if __STDC_VERSION__ - 0 >= 199901L -#define zverify(EX) (void)((EX) || (aok) || \ - (__assert_c99(#EX, __FILE__, __LINE__, __func__), 0)) -#else -#define zverify(EX) (void)((EX) || (aok) || \ - (__assert(#EX, __FILE__, __LINE__), 0)) -#endif /* __STDC_VERSION__ - 0 >= 199901L */ -#else -#define zverify(EX) (void)((EX) || (aok) || \ - (_assert("EX", __FILE__, __LINE__), 0)) -#endif /* __STDC__ */ - - -#define VERIFY zverify -#define ASSERT zverify -#undef assert -#define assert zverify - -extern void __assert(const char *, const char *, int); - -#ifdef lint -#define VERIFY3_IMPL(x, y, z, t) if (x == z) ((void)0) -#else -/* BEGIN CSTYLED */ -#define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \ - const TYPE __left = (TYPE)(LEFT); \ - const TYPE __right = (TYPE)(RIGHT); \ - if (!(__left OP __right) && (!aok)) { \ - char *__buf = alloca(256); \ - (void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \ - #LEFT, #OP, #RIGHT, \ - (u_longlong_t)__left, #OP, (u_longlong_t)__right); \ - __assert(__buf, __FILE__, __LINE__); \ - } \ -_NOTE(CONSTCOND) } while (0) -/* END CSTYLED */ -#endif /* lint */ - -#define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t) -#define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t) -#define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t) - -#ifdef NDEBUG -#define ASSERT3S(x, y, z) ((void)0) -#define ASSERT3U(x, y, z) ((void)0) -#define ASSERT3P(x, y, z) ((void)0) -#else -#define ASSERT3S(x, y, z) VERIFY3S(x, y, z) -#define ASSERT3U(x, y, z) VERIFY3U(x, y, z) -#define ASSERT3P(x, y, z) VERIFY3P(x, y, z) -#endif - /* * DTrace SDT probes have different signatures in userland than they do in * kernel. If they're being used in kernel code, re-define them out of @@ -195,27 +144,55 @@ _NOTE(CONSTCOND) } while (0) /* * Threads */ -#define curthread ((void *)(uintptr_t)thr_self()) - -typedef struct kthread kthread_t; - -#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ - zk_thread_create(func, arg) -#define thread_exit() thr_exit(NULL) -#define thread_join(t) panic("libzpool cannot join threads") +#define TS_MAGIC 0x72f158ab4261e538ull +#define TS_RUN 0x00000002 +#ifdef __linux__ +#define STACK_SIZE 8192 /* Linux x86 and amd64 */ +#else +#define STACK_SIZE 24576 /* Solaris */ +#endif -#define newproc(f, a, cid, pri, ctp, pid) (ENOSYS) +#ifdef NPTL_GUARD_WITHIN_STACK +#define EXTRA_GUARD_BYTES PAGESIZE +#else +#define EXTRA_GUARD_BYTES 0 +#endif /* in libzpool, p0 exists only to have its address taken */ -struct proc { +typedef struct proc { uintptr_t this_is_never_used_dont_dereference_it; -}; +} proc_t; extern struct proc p0; -#define PS_NONE -1 +typedef void (*thread_func_t)(void *); +typedef void (*thread_func_arg_t)(void *); +typedef pthread_t kt_did_t; -extern kthread_t *zk_thread_create(void (*func)(), void *arg); +typedef struct kthread { + kt_did_t t_tid; + thread_func_t t_func; + void * t_arg; +} kthread_t; + +#define tsd_get(key) pthread_getspecific(key) +#define tsd_set(key, val) pthread_setspecific(key, val) +#define curthread zk_thread_current() +#define thread_exit zk_thread_exit +#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ + zk_thread_create(stk, stksize, (thread_func_t)func, arg, \ + len, NULL, state, pri) +#define thread_join(t) zk_thread_join(t) +#define newproc(f,a,cid,pri,ctp,pid) (ENOSYS) + +extern kthread_t *zk_thread_current(void); +extern void zk_thread_exit(void); +extern kthread_t *zk_thread_create(caddr_t stk, size_t stksize, + thread_func_t func, void *arg, size_t len, + proc_t *pp, int state, pri_t pri); +extern void zk_thread_join(kt_did_t tid); + +#define PS_NONE -1 #define issig(why) (FALSE) #define ISSIG(thr, why) (FALSE) @@ -223,55 +200,52 @@ extern kthread_t *zk_thread_create(void (*func)(), void *arg); /* * Mutexes */ +#define MTX_MAGIC 0x9522f51362a6e326ull +#define MTX_INIT ((void *)NULL) +#define MTX_DEST ((void *)-1UL) + typedef struct kmutex { void *m_owner; - boolean_t initialized; - mutex_t m_lock; + uint64_t m_magic; + pthread_mutex_t m_lock; } kmutex_t; -#define MUTEX_DEFAULT USYNC_THREAD -#undef MUTEX_HELD -#undef MUTEX_NOT_HELD -#define MUTEX_HELD(m) _mutex_held(&(m)->m_lock) +#define MUTEX_DEFAULT 0 +#define MUTEX_HELD(m) ((m)->m_owner == curthread) #define MUTEX_NOT_HELD(m) (!MUTEX_HELD(m)) -/* - * Argh -- we have to get cheesy here because the kernel and userland - * have different signatures for the same routine. - */ -extern int _mutex_init(mutex_t *mp, int type, void *arg); -extern int _mutex_destroy(mutex_t *mp); - -#define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp)) -#define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp)) - -extern void zmutex_init(kmutex_t *mp); -extern void zmutex_destroy(kmutex_t *mp); +extern void mutex_init(kmutex_t *mp, char *name, int type, void *cookie); +extern void mutex_destroy(kmutex_t *mp); extern void mutex_enter(kmutex_t *mp); extern void mutex_exit(kmutex_t *mp); extern int mutex_tryenter(kmutex_t *mp); extern void *mutex_owner(kmutex_t *mp); +extern int mutex_held(kmutex_t *mp); /* * RW locks */ +#define RW_MAGIC 0x4d31fb123648e78aull +#define RW_INIT ((void *)NULL) +#define RW_DEST ((void *)-1UL) + typedef struct krwlock { - void *rw_owner; - boolean_t initialized; - rwlock_t rw_lock; + void *rw_owner; + void *rw_wr_owner; + uint64_t rw_magic; + pthread_rwlock_t rw_lock; + uint_t rw_readers; } krwlock_t; typedef int krw_t; #define RW_READER 0 #define RW_WRITER 1 -#define RW_DEFAULT USYNC_THREAD +#define RW_DEFAULT RW_READER -#undef RW_READ_HELD -#define RW_READ_HELD(x) _rw_read_held(&(x)->rw_lock) - -#undef RW_WRITE_HELD -#define RW_WRITE_HELD(x) _rw_write_held(&(x)->rw_lock) +#define RW_READ_HELD(x) ((x)->rw_readers > 0) +#define RW_WRITE_HELD(x) ((x)->rw_wr_owner == curthread) +#define RW_LOCK_HELD(x) (RW_READ_HELD(x) || RW_WRITE_HELD(x)) extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg); extern void rw_destroy(krwlock_t *rwlp); @@ -289,9 +263,14 @@ extern gid_t *crgetgroups(cred_t *cr); /* * Condition variables */ -typedef cond_t kcondvar_t; +#define CV_MAGIC 0xd31ea9a83b1b30c4ull + +typedef struct kcondvar { + uint64_t cv_magic; + pthread_cond_t cv; +} kcondvar_t; -#define CV_DEFAULT USYNC_THREAD +#define CV_DEFAULT 0 extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg); extern void cv_destroy(kcondvar_t *cv); @@ -314,10 +293,14 @@ extern void kstat_delete(kstat_t *); #define KM_SLEEP UMEM_NOFAIL #define KM_PUSHPAGE KM_SLEEP #define KM_NOSLEEP UMEM_DEFAULT +#define KM_NODEBUG 0x0 #define KMC_NODEBUG UMC_NODEBUG #define kmem_alloc(_s, _f) umem_alloc(_s, _f) #define kmem_zalloc(_s, _f) umem_zalloc(_s, _f) #define kmem_free(_b, _s) umem_free(_b, _s) +#define vmem_alloc(_s, _f) kmem_alloc(_s, _f) +#define vmem_zalloc(_s, _f) kmem_zalloc(_s, _f) +#define vmem_free(_b, _s) kmem_free(_b, _s) #define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \ umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) #define kmem_cache_destroy(_c) umem_cache_destroy(_c) @@ -367,7 +350,7 @@ extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); extern void taskq_destroy(taskq_t *); extern void taskq_wait(taskq_t *); -extern int taskq_member(taskq_t *, void *); +extern int taskq_member(taskq_t *, kthread_t *); extern void system_taskq_init(void); extern void system_taskq_fini(void); @@ -496,7 +479,7 @@ extern void delay(clock_t ticks); #define minclsyspri 60 #define maxclsyspri 99 -#define CPU_SEQID (thr_self() & (max_ncpus - 1)) +#define CPU_SEQID (pthread_self() & (max_ncpus - 1)) #define kcred NULL #define CRED() NULL @@ -540,6 +523,7 @@ typedef struct callb_cpr { #define zone_dataset_visible(x, y) (1) #define INGLOBALZONE(z) (1) +extern char *kmem_vasprintf(const char *fmt, va_list adx); extern char *kmem_asprintf(const char *fmt, ...); #define strfree(str) kmem_free((str), strlen(str)+1)