From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 23 Jul 2019 07:13:15 +0000 (+0200)
Subject: drop xen patch from 4.4
X-Git-Tag: v5.2.3~66
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=e3d931270d322c6f63305fbc4f553f51d102d8b4;p=thirdparty%2Fkernel%2Fstable-queue.git

drop xen patch from 4.4
---

diff --git a/queue-4.4/series b/queue-4.4/series
index 8d5c28a1c41..146d472487c 100644
--- a/queue-4.4/series
+++ b/queue-4.4/series
@@ -55,4 +55,3 @@ bluetooth-check-state-in-l2cap_disconnect_rsp.patch
 bluetooth-validate-ble-connection-interval-updates.patch
 floppy-fix-div-by-zero-in-setup_format_params.patch
 floppy-fix-out-of-bounds-read-in-copy_buffer.patch
-xen-let-alloc_xenballooned_pages-fail-if-not-enough-memory-free.patch
diff --git a/queue-4.4/xen-let-alloc_xenballooned_pages-fail-if-not-enough-memory-free.patch b/queue-4.4/xen-let-alloc_xenballooned_pages-fail-if-not-enough-memory-free.patch
deleted file mode 100644
index 2e3ea88011d..00000000000
--- a/queue-4.4/xen-let-alloc_xenballooned_pages-fail-if-not-enough-memory-free.patch
+++ /dev/null
@@ -1,70 +0,0 @@
-From a1078e821b605813b63bf6bca414a85f804d5c66 Mon Sep 17 00:00:00 2001
-From: Juergen Gross <jgross@suse.com>
-Date: Wed, 19 Jun 2019 11:00:56 +0200
-Subject: xen: let alloc_xenballooned_pages() fail if not enough memory free
-
-From: Juergen Gross <jgross@suse.com>
-
-commit a1078e821b605813b63bf6bca414a85f804d5c66 upstream.
-
-Instead of trying to allocate pages with GFP_USER in
-add_ballooned_pages() check the available free memory via
-si_mem_available(). GFP_USER is far less limiting memory exhaustion
-than the test via si_mem_available().
-
-This will avoid dom0 running out of memory due to excessive foreign
-page mappings especially on ARM and on x86 in PVH mode, as those don't
-have a pre-ballooned area which can be used for foreign mappings.
-
-As the normal ballooning suffers from the same problem don't balloon
-down more than si_mem_available() pages in one iteration. At the same
-time limit the default maximum number of retries.
-
-This is part of XSA-300.
-
-Signed-off-by: Juergen Gross <jgross@suse.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- drivers/xen/balloon.c |   16 +++++++++++++---
- 1 file changed, 13 insertions(+), 3 deletions(-)
-
---- a/drivers/xen/balloon.c
-+++ b/drivers/xen/balloon.c
-@@ -583,8 +583,15 @@ static void balloon_process(struct work_
- 				state = reserve_additional_memory();
- 		}
- 
--		if (credit < 0)
--			state = decrease_reservation(-credit, GFP_BALLOON);
-+		if (credit < 0) {
-+			long n_pages;
-+
-+			n_pages = min(-credit, si_mem_available());
-+			state = decrease_reservation(n_pages, GFP_BALLOON);
-+			if (state == BP_DONE && n_pages != -credit &&
-+			    n_pages < totalreserve_pages)
-+				state = BP_EAGAIN;
-+		}
- 
- 		state = update_schedule(state);
- 
-@@ -623,6 +630,9 @@ static int add_ballooned_pages(int nr_pa
- 		}
- 	}
- 
-+	if (si_mem_available() < nr_pages)
-+		return -ENOMEM;
-+
- 	st = decrease_reservation(nr_pages, GFP_USER);
- 	if (st != BP_DONE)
- 		return -ENOMEM;
-@@ -746,7 +756,7 @@ static int __init balloon_init(void)
- 	balloon_stats.schedule_delay = 1;
- 	balloon_stats.max_schedule_delay = 32;
- 	balloon_stats.retry_count = 1;
--	balloon_stats.max_retry_count = RETRY_UNLIMITED;
-+	balloon_stats.max_retry_count = 4;
- 
- #ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG
- 	set_online_page_callback(&xen_online_page);