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rebase patches on top of Ubuntu-4.15.0-14.15

Browse source 
and drop those applied upstream

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
This commit is contained in:
Fabian Grünbichler 2018-04-04 14:22:30 +02:00 committed by Thomas Lamprecht
parent 29704dd4fa
commit a214614ea9
3 changed files with 3 additions and 152 deletions
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6
patches/kernel/0003-pci-Enable-overrides-for-missing-ACS-capabilities-4..patch
View file

@ -54,7 +54,7 @@ Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
2 files changed, 110 insertions(+) 2 files changed, 110 insertions(+)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 27ca3fbc47aa..5e3caff3fb49 100644 index 2db36b52a4ff..9b7f4e3e6e30 100644
--- a/Documentation/admin-guide/kernel-parameters.txt --- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2968,6 +2968,15 @@ @@ -2968,6 +2968,15 @@
@ -74,7 +74,7 @@ index 27ca3fbc47aa..5e3caff3fb49 100644
Safety option to keep boot IRQs enabled. This Safety option to keep boot IRQs enabled. This
should never be necessary. should never be necessary.
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 242040c87ce2..3926d5bf4d06 100644 index 451fd28f1855..a928bd86e102 100644
--- a/drivers/pci/quirks.c --- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c
@@ -3702,6 +3702,106 @@ static int __init pci_apply_final_quirks(void) @@ -3702,6 +3702,106 @@ static int __init pci_apply_final_quirks(void)
@ -184,7 +184,7 @@ index 242040c87ce2..3926d5bf4d06 100644
/* /*
* Following are device-specific reset methods which can be used to * Following are device-specific reset methods which can be used to
* reset a single function if other methods (e.g. FLR, PM D0->D3) are * reset a single function if other methods (e.g. FLR, PM D0->D3) are
@@ -4534,6 +4634,7 @@ static const struct pci_dev_acs_enabled { @@ -4536,6 +4636,7 @@ static const struct pci_dev_acs_enabled {
{ PCI_VENDOR_ID_CAVIUM, PCI_ANY_ID, pci_quirk_cavium_acs }, { PCI_VENDOR_ID_CAVIUM, PCI_ANY_ID, pci_quirk_cavium_acs },
/* APM X-Gene */ /* APM X-Gene */
{ PCI_VENDOR_ID_AMCC, 0xE004, pci_quirk_xgene_acs }, { PCI_VENDOR_ID_AMCC, 0xE004, pci_quirk_xgene_acs },

103
patches/kernel/0007-mm-shmem-do-not-wait-for-lock_page-in-shmem_unused_h.patch
View file

@ -1,103 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Fri, 23 Mar 2018 09:19:21 +0100
Subject: [PATCH] mm/shmem: do not wait for lock_page() in
shmem_unused_huge_shrink()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
shmem_unused_huge_shrink() gets called from reclaim path. Waiting for
page lock may lead to deadlock there.
There was a bug report that may be attributed to this:
http://lkml.kernel.org/r/alpine.LRH.2.11.1801242349220.30642@mail.ewheeler.net
Replace lock_page() with trylock_page() and skip the page if we failed to
lock it. We will get to the page on the next scan.
We can test for the PageTransHuge() outside the page lock as we only need
protection against splitting the page under us. Holding pin oni the page
is enough for this.
Link: http://lkml.kernel.org/r/20180316210830.43738-1-kirill.shutemov@linux.intel.com
Fixes: 779750d20b93 ("shmem: split huge pages beyond i_size under memory pressure")
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Eric Wheeler <linux-mm@lists.ewheeler.net>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Hugh Dickins <hughd@google.com>
Cc: <stable@vger.kernel.org> [4.8+]
Signed-off-by: Andrew Morton <>
(cherry-picked from https://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git/commit/?h=since-4.15&id=73eccc61c701ee7b4223aea2079542a712feeea7)
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
---
mm/shmem.c | 31 ++++++++++++++++++++-----------
1 file changed, 20 insertions(+), 11 deletions(-)
diff --git a/mm/shmem.c b/mm/shmem.c
index f6695c111086..800482fe6ed6 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -497,36 +497,45 @@ static unsigned long shmem_unused_huge_shrink(struct shmem_sb_info *sbinfo,
info = list_entry(pos, struct shmem_inode_info, shrinklist);
inode = &info->vfs_inode;
- if (nr_to_split && split >= nr_to_split) {
- iput(inode);
- continue;
- }
+ if (nr_to_split && split >= nr_to_split)
+ goto leave;
- page = find_lock_page(inode->i_mapping,
+ page = find_get_page(inode->i_mapping,
(inode->i_size & HPAGE_PMD_MASK) >> PAGE_SHIFT);
if (!page)
goto drop;
+ /* No huge page at the end of the file: nothing to split */
if (!PageTransHuge(page)) {
- unlock_page(page);
put_page(page);
goto drop;
}
+ /*
+ * Leave the inode on the list if we failed to lock
+ * the page at this time.
+ *
+ * Waiting for the lock may lead to deadlock in the
+ * reclaim path.
+ */
+ if (!trylock_page(page)) {
+ put_page(page);
+ goto leave;
+ }
+
ret = split_huge_page(page);
unlock_page(page);
put_page(page);
- if (ret) {
- /* split failed: leave it on the list */
- iput(inode);
- continue;
- }
+ /* If split failed leave the inode on the list */
+ if (ret)
+ goto leave;
split++;
drop:
list_del_init(&info->shrinklist);
removed++;
+leave:
iput(inode);
}
--
2.14.2

46
patches/kernel/0007-mm-thp-Do-not-wait-for-lock_page-in-deferred_split_s.patch
View file

@ -1,46 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 15 Mar 2018 18:07:47 +0300
Subject: [PATCH] mm/thp: Do not wait for lock_page() in deferred_split_scan()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
deferred_split_scan() gets called from reclaim path. Waiting for page
lock may lead to deadlock there.
Replace lock_page() with trylock_page() and skip the page if we failed
to lock it. We will get to the page on the next scan.
Fixes: 9a982250f773 ("thp: introduce deferred_split_huge_page()")
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
(cherry-picked from https://patchwork.kernel.org/patch/10284703/)
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
---
mm/huge_memory.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 0e7ded98d114..4ed6c89e95c3 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2791,11 +2791,13 @@ static unsigned long deferred_split_scan(struct shrinker *shrink,
list_for_each_safe(pos, next, &list) {
page = list_entry((void *)pos, struct page, mapping);
- lock_page(page);
+ if (!trylock_page(page))
+ goto next;
/* split_huge_page() removes page from list on success */
if (!split_huge_page(page))
split++;
unlock_page(page);
+next:
put_page(page);
}
--
2.14.2