Synchronize patches with upstream

This pull request synchronizes the patches with Proxmox.

debian/changelog

@@ -1,3 +1,11 @@
+pve-kernel (5.16.5-2) edge; urgency=medium
+
+  * Synchronize kernel patches with Proxmox.
+  * Synchronize ZFS patches with Proxmox.
+  * Separate Ubuntu patches from Proxmox patches.
+
+ -- Fabian Mastenbroek <[email protected]>  Fri, 04 Feb 2022 11:00:00 +0000
+
 pve-kernel (5.16.5-1) edge; urgency=medium
 
   * Update to Linux 5.16.5.

debian/patches/pve/0006-Revert-PCI-Coalesce-host-bridge-contiguous-apertures.patch

@@ -0,0 +1,104 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Thomas Lamprecht <[email protected]>
+Date: Mon, 27 Sep 2021 11:28:39 +0200
+Subject: [PATCH] Revert "PCI: Coalesce host bridge contiguous apertures"
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This reverts commit ab20e43b20b60f5cc8e2ea3763ffa388158469ac.
+
+was reverted upstream because of reports similar to
+
+Link: https://bugzilla.proxmox.com/show_bug.cgi?id=3552
+Link: https://lore.kernel.org/r/[email protected]
+Signed-off-by: Fabian Grünbichler <[email protected]>
+Signed-off-by: Thomas Lamprecht <[email protected]>
+---
+ drivers/pci/probe.c | 50 ++++-----------------------------------------
+ 1 file changed, 4 insertions(+), 46 deletions(-)
+
+diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
+index cb70d2605e97..258350f80f6c 100644
+--- a/drivers/pci/probe.c
++++ b/drivers/pci/probe.c
+@@ -20,7 +20,6 @@
+ #include <linux/irqdomain.h>
+ #include <linux/pm_runtime.h>
+ #include <linux/bitfield.h>
+-#include <linux/list_sort.h>
+ #include "pci.h"
+
+ #define CARDBUS_LATENCY_TIMER	176	/* secondary latency timer */
+@@ -881,31 +880,14 @@ static void pci_set_bus_msi_domain(struct pci_bus *bus)
+ 	dev_set_msi_domain(&bus->dev, d);
+ }
+
+-static int res_cmp(void *priv, const struct list_head *a,
+-		   const struct list_head *b)
+-{
+-	struct resource_entry *entry1, *entry2;
+-
+-	entry1 = container_of(a, struct resource_entry, node);
+-	entry2 = container_of(b, struct resource_entry, node);
+-
+-	if (entry1->res->flags != entry2->res->flags)
+-		return entry1->res->flags > entry2->res->flags;
+-
+-	if (entry1->offset != entry2->offset)
+-		return entry1->offset > entry2->offset;
+-
+-	return entry1->res->start > entry2->res->start;
+-}
+-
+ static int pci_register_host_bridge(struct pci_host_bridge *bridge)
+ {
+ 	struct device *parent = bridge->dev.parent;
+-	struct resource_entry *window, *next, *n;
++	struct resource_entry *window, *n;
+ 	struct pci_bus *bus, *b;
+-	resource_size_t offset, next_offset;
++	resource_size_t offset;
+ 	LIST_HEAD(resources);
+-	struct resource *res, *next_res;
++	struct resource *res;
+ 	char addr[64], *fmt;
+ 	const char *name;
+ 	int err;
+@@ -988,35 +970,11 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge)
+ 	if (nr_node_ids > 1 && pcibus_to_node(bus) == NUMA_NO_NODE)
+ 		dev_warn(&bus->dev, "Unknown NUMA node; performance will be reduced\n");
+
+-	/* Sort and coalesce contiguous windows */
+-	list_sort(NULL, &resources, res_cmp);
+-	resource_list_for_each_entry_safe(window, n, &resources) {
+-		if (list_is_last(&window->node, &resources))
+-			break;
+-
+-		next = list_next_entry(window, node);
+-		offset = window->offset;
+-		res = window->res;
+-		next_offset = next->offset;
+-		next_res = next->res;
+-
+-		if (res->flags != next_res->flags || offset != next_offset)
+-			continue;
+-
+-		if (res->end + 1 == next_res->start) {
+-			next_res->start = res->start;
+-			res->flags = res->start = res->end = 0;
+-		}
+-	}
+-
+ 	/* Add initial resources to the bus */
+ 	resource_list_for_each_entry_safe(window, n, &resources) {
++		list_move_tail(&window->node, &bridge->windows);
+ 		offset = window->offset;
+ 		res = window->res;
+-		if (!res->end)
+-			continue;
+-
+-		list_move_tail(&window->node, &bridge->windows);
+
+ 		if (res->flags & IORESOURCE_BUS)
+ 			pci_bus_insert_busn_res(bus, bus->number, res->end);

debian/patches/pve/0007-PCI-Reinstate-PCI-Coalesce-host-bridge-contiguous-ap.patch

@@ -0,0 +1,112 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Kai-Heng Feng <[email protected]>
+Date: Tue, 13 Jul 2021 20:50:07 +0800
+Subject: [PATCH] PCI: Reinstate "PCI: Coalesce host bridge contiguous
+ apertures"
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Built-in graphics on HP EliteDesk 805 G6 doesn't work because graphics
+can't get the BAR it needs:
+  pci_bus 0000:00: root bus resource [mem 0x10020200000-0x100303fffff window]
+  pci_bus 0000:00: root bus resource [mem 0x10030400000-0x100401fffff window]
+
+  pci 0000:00:08.1:   bridge window [mem 0xd2000000-0xd23fffff]
+  pci 0000:00:08.1:   bridge window [mem 0x10030000000-0x100401fffff 64bit pref]
+  pci 0000:00:08.1: can't claim BAR 15 [mem 0x10030000000-0x100401fffff 64bit pref]: no compatible bridge window
+  pci 0000:00:08.1: [mem 0x10030000000-0x100401fffff 64bit pref] clipped to [mem 0x10030000000-0x100303fffff 64bit pref]
+  pci 0000:00:08.1:   bridge window [mem 0x10030000000-0x100303fffff 64bit pref]
+  pci 0000:07:00.0: can't claim BAR 0 [mem 0x10030000000-0x1003fffffff 64bit pref]: no compatible bridge window
+  pci 0000:07:00.0: can't claim BAR 2 [mem 0x10040000000-0x100401fffff 64bit pref]: no compatible bridge window
+
+However, the root bus has two contiguous apertures that can contain the
+child resource requested.
+
+Coalesce contiguous apertures so we can allocate from the entire contiguous
+region.
+
+This is the second take of commit 65db04053efe ("PCI: Coalesce host
+bridge contiguous apertures"). The original approach sorts the apertures
+by address, but that makes NVMe stop working on QEMU ppc:sam460ex:
+  PCI host bridge to bus 0002:00
+  pci_bus 0002:00: root bus resource [io  0x0000-0xffff]
+  pci_bus 0002:00: root bus resource [mem 0xd80000000-0xdffffffff] (bus address [0x80000000-0xffffffff])
+  pci_bus 0002:00: root bus resource [mem 0xc0ee00000-0xc0eefffff] (bus address [0x00000000-0x000fffff])
+
+After the offending commit:
+  PCI host bridge to bus 0002:00
+  pci_bus 0002:00: root bus resource [io  0x0000-0xffff]
+  pci_bus 0002:00: root bus resource [mem 0xc0ee00000-0xc0eefffff] (bus address [0x00000000-0x000fffff])
+  pci_bus 0002:00: root bus resource [mem 0xd80000000-0xdffffffff] (bus address [0x80000000-0xffffffff])
+
+Since the apertures on HP EliteDesk 805 G6 are already in ascending
+order, doing a precautious sorting is not necessary.
+
+Remove the sorting part to avoid the regression on ppc:sam460ex.
+
+Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=212013
+Cc: Guenter Roeck <[email protected]>
+Suggested-by: Bjorn Helgaas <[email protected]>
+Signed-off-by: Kai-Heng Feng <[email protected]>
+Signed-off-by: Fabian Grünbichler <[email protected]>
+Signed-off-by: Thomas Lamprecht <[email protected]>
+---
+ drivers/pci/probe.c | 31 +++++++++++++++++++++++++++----
+ 1 file changed, 27 insertions(+), 4 deletions(-)
+
+diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
+index 258350f80f6c..7ff9fcec365b 100644
+--- a/drivers/pci/probe.c
++++ b/drivers/pci/probe.c
+@@ -883,11 +883,11 @@ static void pci_set_bus_msi_domain(struct pci_bus *bus)
+ static int pci_register_host_bridge(struct pci_host_bridge *bridge)
+ {
+ 	struct device *parent = bridge->dev.parent;
+-	struct resource_entry *window, *n;
++	struct resource_entry *window, *next, *n;
+ 	struct pci_bus *bus, *b;
+-	resource_size_t offset;
++	resource_size_t offset, next_offset;
+ 	LIST_HEAD(resources);
+-	struct resource *res;
++	struct resource *res, *next_res;
+ 	char addr[64], *fmt;
+ 	const char *name;
+ 	int err;
+@@ -970,11 +970,34 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge)
+ 	if (nr_node_ids > 1 && pcibus_to_node(bus) == NUMA_NO_NODE)
+ 		dev_warn(&bus->dev, "Unknown NUMA node; performance will be reduced\n");
+
++	/* Coalesce contiguous windows */
++	resource_list_for_each_entry_safe(window, n, &resources) {
++		if (list_is_last(&window->node, &resources))
++			break;
++
++		next = list_next_entry(window, node);
++		offset = window->offset;
++		res = window->res;
++		next_offset = next->offset;
++		next_res = next->res;
++
++		if (res->flags != next_res->flags || offset != next_offset)
++			continue;
++
++		if (res->end + 1 == next_res->start) {
++			next_res->start = res->start;
++			res->flags = res->start = res->end = 0;
++		}
++	}
++
+ 	/* Add initial resources to the bus */
+ 	resource_list_for_each_entry_safe(window, n, &resources) {
+-		list_move_tail(&window->node, &bridge->windows);
+ 		offset = window->offset;
+ 		res = window->res;
++		if (!res->end)
++			continue;
++
++		list_move_tail(&window->node, &bridge->windows);
+
+ 		if (res->flags & IORESOURCE_BUS)
+ 			pci_bus_insert_busn_res(bus, bus->number, res->end);

debian/patches/pve/0009-blk-cgroup-always-terminate-io.stat-lines.patch

@@ -0,0 +1,147 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Wolfgang Bumiller <[email protected]>
+Date: Tue, 11 Jan 2022 09:31:59 +0100
+Subject: [PATCH] blk-cgroup: always terminate io.stat lines
+
+With the removal of seq_get_buf in blkcg_print_one_stat, we
+cannot make adding the newline conditional on there being
+relevant stats because the name was already written out
+unconditionally.
+Otherwise we may end up with multiple device names in one
+line which is confusing and doesn't follow the nested-keyed
+file format.
+
+Signed-off-by: Wolfgang Bumiller <[email protected]>
+Fixes: 252c651a4c85 ("blk-cgroup: stop using seq_get_buf")
+Signed-off-by: Thomas Lamprecht <[email protected]>
+---
+ block/blk-cgroup.c         | 9 ++-------
+ block/blk-iocost.c         | 5 ++---
+ block/blk-iolatency.c      | 8 +++-----
+ include/linux/blk-cgroup.h | 2 +-
+ 4 files changed, 8 insertions(+), 16 deletions(-)
+
+diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
+index 0eec59e4df65..38c62a44905a 100644
+--- a/block/blk-cgroup.c
++++ b/block/blk-cgroup.c
+@@ -887,7 +887,6 @@ static void blkcg_print_one_stat(struct blkcg_gq *blkg, struct seq_file *s)
+ {
+ 	struct blkg_iostat_set *bis = &blkg->iostat;
+ 	u64 rbytes, wbytes, rios, wios, dbytes, dios;
+-	bool has_stats = false;
+ 	const char *dname;
+ 	unsigned seq;
+ 	int i;
+@@ -913,14 +912,12 @@ static void blkcg_print_one_stat(struct blkcg_gq *blkg, struct seq_file *s)
+ 	} while (u64_stats_fetch_retry(&bis->sync, seq));
+
+ 	if (rbytes || wbytes || rios || wios) {
+-		has_stats = true;
+ 		seq_printf(s, "rbytes=%llu wbytes=%llu rios=%llu wios=%llu dbytes=%llu dios=%llu",
+ 			rbytes, wbytes, rios, wios,
+ 			dbytes, dios);
+ 	}
+
+ 	if (blkcg_debug_stats && atomic_read(&blkg->use_delay)) {
+-		has_stats = true;
+ 		seq_printf(s, " use_delay=%d delay_nsec=%llu",
+ 			atomic_read(&blkg->use_delay),
+ 			atomic64_read(&blkg->delay_nsec));
+@@ -932,12 +929,10 @@ static void blkcg_print_one_stat(struct blkcg_gq *blkg, struct seq_file *s)
+ 		if (!blkg->pd[i] || !pol->pd_stat_fn)
+ 			continue;
+
+-		if (pol->pd_stat_fn(blkg->pd[i], s))
+-			has_stats = true;
++		pol->pd_stat_fn(blkg->pd[i], s);
+ 	}
+
+-	if (has_stats)
+-		seq_printf(s, "\n");
++	seq_puts(s, "\n");
+ }
+
+ static int blkcg_print_stat(struct seq_file *sf, void *v)
+diff --git a/block/blk-iocost.c b/block/blk-iocost.c
+index eb7b0d6bd11f..381c28f9561e 100644
+--- a/block/blk-iocost.c
++++ b/block/blk-iocost.c
+@@ -2995,13 +2995,13 @@ static void ioc_pd_free(struct blkg_policy_data *pd)
+ 	kfree(iocg);
+ }
+
+-static bool ioc_pd_stat(struct blkg_policy_data *pd, struct seq_file *s)
++static void ioc_pd_stat(struct blkg_policy_data *pd, struct seq_file *s)
+ {
+ 	struct ioc_gq *iocg = pd_to_iocg(pd);
+ 	struct ioc *ioc = iocg->ioc;
+
+ 	if (!ioc->enabled)
+-		return false;
++		return;
+
+ 	if (iocg->level == 0) {
+ 		unsigned vp10k = DIV64_U64_ROUND_CLOSEST(
+@@ -3017,7 +3017,6 @@ static bool ioc_pd_stat(struct blkg_policy_data *pd, struct seq_file *s)
+ 			iocg->last_stat.wait_us,
+ 			iocg->last_stat.indebt_us,
+ 			iocg->last_stat.indelay_us);
+-	return true;
+ }
+
+ static u64 ioc_weight_prfill(struct seq_file *sf, struct blkg_policy_data *pd,
+diff --git a/block/blk-iolatency.c b/block/blk-iolatency.c
+index c0545f9da549..d33460f3d43d 100644
+--- a/block/blk-iolatency.c
++++ b/block/blk-iolatency.c
+@@ -890,7 +890,7 @@ static int iolatency_print_limit(struct seq_file *sf, void *v)
+ 	return 0;
+ }
+
+-static bool iolatency_ssd_stat(struct iolatency_grp *iolat, struct seq_file *s)
++static void iolatency_ssd_stat(struct iolatency_grp *iolat, struct seq_file *s)
+ {
+ 	struct latency_stat stat;
+ 	int cpu;
+@@ -913,17 +913,16 @@ static bool iolatency_ssd_stat(struct iolatency_grp *iolat, struct seq_file *s)
+ 			(unsigned long long)stat.ps.missed,
+ 			(unsigned long long)stat.ps.total,
+ 			iolat->rq_depth.max_depth);
+-	return true;
+ }
+
+-static bool iolatency_pd_stat(struct blkg_policy_data *pd, struct seq_file *s)
++static void iolatency_pd_stat(struct blkg_policy_data *pd, struct seq_file *s)
+ {
+ 	struct iolatency_grp *iolat = pd_to_lat(pd);
+ 	unsigned long long avg_lat;
+ 	unsigned long long cur_win;
+
+ 	if (!blkcg_debug_stats)
+-		return false;
++		return;
+
+ 	if (iolat->ssd)
+ 		return iolatency_ssd_stat(iolat, s);
+@@ -936,7 +935,6 @@ static bool iolatency_pd_stat(struct blkg_policy_data *pd, struct seq_file *s)
+ 	else
+ 		seq_printf(s, " depth=%u avg_lat=%llu win=%llu",
+ 			iolat->rq_depth.max_depth, avg_lat, cur_win);
+-	return true;
+ }
+
+ static struct blkg_policy_data *iolatency_pd_alloc(gfp_t gfp,
+diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h
+index b4de2010fba5..132e05ed6935 100644
+--- a/include/linux/blk-cgroup.h
++++ b/include/linux/blk-cgroup.h
+@@ -152,7 +152,7 @@ typedef void (blkcg_pol_online_pd_fn)(struct blkg_policy_data *pd);
+ typedef void (blkcg_pol_offline_pd_fn)(struct blkg_policy_data *pd);
+ typedef void (blkcg_pol_free_pd_fn)(struct blkg_policy_data *pd);
+ typedef void (blkcg_pol_reset_pd_stats_fn)(struct blkg_policy_data *pd);
+-typedef bool (blkcg_pol_stat_pd_fn)(struct blkg_policy_data *pd,
++typedef void (blkcg_pol_stat_pd_fn)(struct blkg_policy_data *pd,
+ 				struct seq_file *s);
+
+ struct blkcg_policy {