add patch series

1 files changed, 63 insertions, 0 deletions

diff --git a/debian/patches/700007-Use-the-slab-allocator.patch b/debian/patches/700007-Use-the-slab-allocator.patch
new file mode 100644
index 0000000..e89f253
--- /dev/null
+++ b/debian/patches/700007-Use-the-slab-allocator.patch
@@ -0,0 +1,63 @@
+From ad33ca5d3fbc25618d26b7af4d9a67be041c779a Mon Sep 17 00:00:00 2001
+From: Justus Winter <justus@gnupg.org>
+Date: Fri, 26 Feb 2016 13:43:11 +0100
+Subject: [PATCH gnumach 07/10] Use the slab allocator
+
+---
+ device/intr.c | 12 +++++++++---
+ 1 file changed, 9 insertions(+), 3 deletions(-)
+
+diff --git a/device/intr.c b/device/intr.c
+index b0dcd83..0fa43c5 100644
+--- a/device/intr.c
++++ b/device/intr.c
+@@ -10,6 +10,9 @@
+ #define sti() __asm__ __volatile__ ("sti": : :"memory")
+ #define cli() __asm__ __volatile__ ("cli": : :"memory")
+ 
++/* The cache which holds our proxy memory objects.  */
++static struct kmem_cache intr_entry_cache;
++
+ struct intr_entry
+ {
+   queue_chain_t chain;
+@@ -58,7 +61,7 @@ insert_intr_entry (int line, ipc_port_t dest, struct intr_entry **entry)
+   struct intr_entry *e, *new;
+   int free = 0;
+ 
+-  new = (struct intr_entry *) kalloc (sizeof (*new));
++  new = (struct intr_entry *) kmem_cache_alloc (&intr_entry_cache);
+   if (new == NULL)
+     return D_NO_MEMORY;
+   new->line = line;
+@@ -81,7 +84,7 @@ insert_intr_entry (int line, ipc_port_t dest, struct intr_entry **entry)
+ out:
+   sti ();
+   if (free)
+-    kfree ((vm_offset_t) new, sizeof (*new));
++    kmem_cache_free (&intr_entry_cache, (vm_offset_t) new);
+   *entry = new;
+   return err;
+ }
+@@ -146,6 +149,9 @@ intr_thread ()
+   queue_init (&intr_queue);
+   init_mach_intr_notification (&mach_intr_notification_template);
+ 
++  kmem_cache_init (&intr_entry_cache, "intr_entry",
++		   sizeof (struct intr_entry), 0, NULL, 0);
++
+   for (;;)
+     {
+       assert_wait ((event_t) &intr_thread, FALSE);
+@@ -183,7 +189,7 @@ intr_thread ()
+ 	      assert (!queue_empty (&intr_queue));
+ 	      queue_remove (&intr_queue, e, struct intr_entry *, chain);
+ 	      sti ();
+-	      kfree ((vm_offset_t) e, sizeof (*e));
++	      kmem_cache_free (&intr_entry_cache, (vm_offset_t) e);
+ 	      cli ();
+ 	    }
+ 	}
+-- 
+2.1.4
+