OS-7753 THREAD_KPRI_RELEASE does nothing of the sort
Reviewed by: Bryan Cantrill <bryan@joyent.com>
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>

@@ -22,10 +22,11 @@
  * Copyright (c) 1993, 2010, Oracle and/or its affiliates. All rights reserved.
  */
 /*
  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  * Copyright 2016 Gary Mills
+ * Copyright 2019 Joyent, Inc.
  */
 
 /*
  * VM - Hardware Address Translation management for Spitfire MMU.
  *

@@ -5443,16 +5444,12 @@
  * the normal algorithm would take too long for a very large VA range with
  * few real mappings. This routine just walks thru all HMEs in the global
  * hash table to find and remove mappings.
  */
 static void
-hat_unload_large_virtual(
-        struct hat              *sfmmup,
-        caddr_t                 startaddr,
-        size_t                  len,
-        uint_t                  flags,
-        hat_callback_t          *callback)
+hat_unload_large_virtual(struct hat *sfmmup, caddr_t startaddr, size_t len,
+    uint_t flags, hat_callback_t *callback)
 {
         struct hmehash_bucket *hmebp;
         struct hme_blk *hmeblkp;
         struct hme_blk *pr_hblk = NULL;
         struct hme_blk *nx_hblk;

@@ -5586,15 +5583,11 @@
 #define ISSEGKMAP(sfmmup, addr) (sfmmup == ksfmmup && \
 segkmap->s_base <= (addr) && (addr) < (segkmap->s_base + segkmap->s_size))
 
 
 void
-hat_unload_callback(
-        struct hat *sfmmup,
-        caddr_t addr,
-        size_t len,
-        uint_t flags,
+hat_unload_callback(struct hat *sfmmup, caddr_t addr, size_t len, uint_t flags,
         hat_callback_t *callback)
 {
         struct hmehash_bucket *hmebp;
         hmeblk_tag hblktag;
         int hmeshift, hashno, iskernel;

@@ -8451,12 +8444,12 @@
  *
  * When hat_share()/unshare() are not supported,
  * HATOP_SHARE()/UNSHARE() return 0
  */
 int
-hat_share(struct hat *sfmmup, caddr_t addr,
-        struct hat *ism_hatid, caddr_t sptaddr, size_t len, uint_t ismszc)
+hat_share(struct hat *sfmmup, caddr_t addr, struct hat *ism_hatid,
+    caddr_t sptaddr, size_t len, uint_t ismszc)
 {
         ism_blk_t       *ism_blkp;
         ism_blk_t       *new_iblk;
         ism_map_t       *ism_map;
         ism_ment_t      *ism_ment;

@@ -10874,11 +10867,10 @@
 static void
 sfmmu_ismhat_enter(sfmmu_t *sfmmup, int hatlock_held)
 {
         hatlock_t *hatlockp;
 
-        THREAD_KPRI_REQUEST();
         if (!hatlock_held)
                 hatlockp = sfmmu_hat_enter(sfmmup);
         while (SFMMU_FLAGS_ISSET(sfmmup, HAT_ISMBUSY))
                 cv_wait(&sfmmup->sfmmu_tsb_cv, HATLOCK_MUTEXP(hatlockp));
         SFMMU_FLAGS_SET(sfmmup, HAT_ISMBUSY);

@@ -10896,11 +10888,10 @@
         ASSERT(SFMMU_FLAGS_ISSET(sfmmup, HAT_ISMBUSY));
         SFMMU_FLAGS_CLEAR(sfmmup, HAT_ISMBUSY);
         cv_broadcast(&sfmmup->sfmmu_tsb_cv);
         if (!hatlock_held)
                 sfmmu_hat_exit(hatlockp);
-        THREAD_KPRI_RELEASE();
 }
 
 /*
  *
  * Algorithm:

@@ -13804,19 +13795,13 @@
  * with the MAP_PRIVATE and MAP_TEXT flags set. It returns a region_cookie
  * which is saved in the private segment data for hme segments and
  * the ism_map structure for ism segments.
  */
 hat_region_cookie_t
-hat_join_region(struct hat *sfmmup,
-        caddr_t r_saddr,
-        size_t r_size,
-        void *r_obj,
-        u_offset_t r_objoff,
-        uchar_t r_perm,
-        uchar_t r_pgszc,
-        hat_rgn_cb_func_t r_cb_function,
-        uint_t flags)
+hat_join_region(struct hat *sfmmup, caddr_t r_saddr, size_t r_size,
+    void *r_obj, u_offset_t r_objoff, uchar_t r_perm, uchar_t r_pgszc,
+    hat_rgn_cb_func_t r_cb_function, uint_t flags)
 {
         sf_srd_t *srdp = sfmmup->sfmmu_srdp;
         uint_t rhash;
         uint_t rid;
         hatlock_t *hatlockp;

@@ -15510,12 +15495,11 @@
  * remove a single hmeblk from the hash chain but is necessary when hmeblks are
  * in short supply.
  */
 void
 sfmmu_hblk_hash_rm(struct hmehash_bucket *hmebp, struct hme_blk *hmeblkp,
-    struct hme_blk *pr_hblk, struct hme_blk **listp,
-    int free_now)
+    struct hme_blk *pr_hblk, struct hme_blk **listp, int free_now)
 {
         int shw_size, vshift;
         struct hme_blk *shw_hblkp;
         uint_t          shw_mask, newshw_mask;
         caddr_t         vaddr;