Imported Upstream version 0.6.4.2

[mirror_zfs-debian.git] / include / sys / zfs_context.h

diff --git a/include/sys/zfs_context.h b/include/sys/zfs_context.h
index fa12cea5372d76e3ccaf8f4abc57062c25be234e..3dc54f1d7d90ada20e94bc001acd9427b1c794ae 100644 (file)
--- a/include/sys/zfs_context.h
+++ b/include/sys/zfs_context.h
@@ -25,7 +25,7 @@
 /*
  * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
  * Copyright (c) 2012, Joyent, Inc. All rights reserved.
- * Copyright (c) 2013 by Delphix. All rights reserved.
+ * Copyright (c) 2012, 2014 by Delphix. All rights reserved.
  */
 
 #ifndef _SYS_ZFS_CONTEXT_H
@@ -41,6 +41,8 @@
 #include <sys/bitmap.h>
 #include <sys/cmn_err.h>
 #include <sys/kmem.h>
+#include <sys/kmem_cache.h>
+#include <sys/vmem.h>
 #include <sys/taskq.h>
 #include <sys/buf.h>
 #include <sys/param.h>
@@ -66,7 +68,9 @@
 #include <sys/sunddi.h>
 #include <sys/ctype.h>
 #include <sys/disp.h>
+#include <sys/trace.h>
 #include <linux/dcache_compat.h>
+#include <linux/utsname_compat.h>
 
 #else /* _KERNEL */
 
@@ -90,6 +94,7 @@
 #include <string.h>
 #include <strings.h>
 #include <pthread.h>
+#include <synch.h>
 #include <assert.h>
 #include <alloca.h>
 #include <umem.h>
@@ -116,6 +121,7 @@
 #include <sys/fm/fs/zfs.h>
 #include <sys/sunddi.h>
 #include <sys/debug.h>
+#include <sys/utsname.h>
 
 /*
  * Stack
@@ -137,23 +143,21 @@
 #define        CE_PANIC        3       /* panic                */
 #define        CE_IGNORE       4       /* print nothing        */
 
-extern int aok;
-
 /*
  * ZFS debugging
  */
 
 extern void dprintf_setup(int *argc, char **argv);
-extern void __dprintf(const char *file, const char *func,
-    int line, const char *fmt, ...);
+
 extern void cmn_err(int, const char *, ...);
-extern void vcmn_err(int, const char *, __va_list);
+extern void vcmn_err(int, const char *, va_list);
 extern void panic(const char *, ...);
-extern void vpanic(const char *, __va_list);
+extern void vpanic(const char *, va_list);
 
 #define        fm_panic        panic
 
-#ifdef __sun
+extern int aok;
+
 /*
  * 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
@@ -199,19 +203,17 @@ extern void vpanic(const char *, __va_list);
  * "return (SET_ERROR(log_error(EINVAL, info)));" would log the error twice).
  */
 #define        SET_ERROR(err) (ZFS_SET_ERROR(err), err)
-#else
-#define        SET_ERROR(err) (err)
-#endif
+
 /*
- * Threads
+ * Threads.  TS_STACK_MIN is dictated by the minimum allowed pthread stack
+ * size.  While TS_STACK_MAX is somewhat arbitrary, it was selected to be
+ * large enough for the expected stack depth while small enough to avoid
+ * exhausting address space with high thread counts.
  */
 #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        TS_STACK_MIN            PTHREAD_STACK_MIN
+#define        TS_STACK_MAX            (256 * 1024)
 
 /* in libzpool, p0 exists only to have its address taken */
 typedef struct proc {
@@ -391,7 +393,6 @@ extern void kstat_set_raw_ops(kstat_t *ksp,
 #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        KMC_KMEM                0x0
 #define        KMC_VMEM                0x0
@@ -447,7 +448,6 @@ typedef struct taskq_ent {
 
 #define        TQ_SLEEP        KM_SLEEP        /* Can block for memory */
 #define        TQ_NOSLEEP      KM_NOSLEEP      /* cannot block for memory; may fail */
-#define        TQ_PUSHPAGE     KM_PUSHPAGE     /* Cannot perform I/O */
 #define        TQ_NOQUEUE      0x02            /* Do not enqueue if can't dispatch */
 #define        TQ_FRONT        0x08            /* Queue in front */
 
@@ -584,6 +584,16 @@ extern vnode_t *rootdir;
 #define        ddi_get_lbolt64()       (gethrtime() >> 23)
 #define        hz      119     /* frequency when using gethrtime() >> 23 for lbolt */
 
+#define        ddi_time_before(a, b)           (a < b)
+#define        ddi_time_after(a, b)            ddi_time_before(b, a)
+#define        ddi_time_before_eq(a, b)        (!ddi_time_after(a, b))
+#define        ddi_time_after_eq(a, b)         ddi_time_before_eq(b, a)
+
+#define        ddi_time_before64(a, b)         (a < b)
+#define        ddi_time_after64(a, b)          ddi_time_before64(b, a)
+#define        ddi_time_before_eq64(a, b)      (!ddi_time_after64(a, b))
+#define        ddi_time_after_eq64(a, b)       ddi_time_before_eq64(b, a)
+
 extern void delay(clock_t ticks);
 
 #define        SEC_TO_TICK(sec)        ((sec) * hz)
@@ -612,7 +622,7 @@ extern void delay(clock_t ticks);
 
 extern uint64_t physmem;
 
-extern int highbit(ulong_t i);
+extern int highbit64(uint64_t i);
 extern int random_get_bytes(uint8_t *ptr, size_t len);
 extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);
 
@@ -661,6 +671,9 @@ extern int ddi_strtoul(const char *str, char **nptr, int base,
 extern int ddi_strtoull(const char *str, char **nptr, int base,
     u_longlong_t *result);
 
+typedef struct utsname utsname_t;
+extern utsname_t *utsname(void);
+
 /* ZFS Boot Related stuff. */
 
 struct _buf {
@@ -720,6 +733,11 @@ void ksiddomain_rele(ksiddomain_t *);
                (void) nanosleep(&ts, NULL);                            \
        } while (0)
 
-#endif /* _KERNEL */
+typedef int fstrans_cookie_t;
+
+extern fstrans_cookie_t spl_fstrans_mark(void);
+extern void spl_fstrans_unmark(fstrans_cookie_t);
+extern int spl_fstrans_check(void);
 
+#endif /* _KERNEL */
 #endif /* _SYS_ZFS_CONTEXT_H */