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* [PATCH 0/3 4.19-stable] Sync mappings in vmalloc/ioremap areas
@ 2019-08-13 15:28 Joerg Roedel
  2019-08-13 15:28 ` [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one() Joerg Roedel
                   ` (2 more replies)
  0 siblings, 3 replies; 11+ messages in thread
From: Joerg Roedel @ 2019-08-13 15:28 UTC (permalink / raw)
  To: Greg Kroah-Hartman, stable
  Cc: Dave Hansen, Andy Lutomirski, Peter Zijlstra, Thomas Gleixner,
	Ingo Molnar, Borislav Petkov, linux-kernel, Joerg Roedel

From: Joerg Roedel <jroedel@suse.de>

Backport commits from upstream to fix a data corruption
issue that gets exposed when using PTI on x86-32.

Please consider them for inclusion into stable-4.19.

Joerg Roedel (3):
  x86/mm: Check for pfn instead of page in vmalloc_sync_one()
  x86/mm: Sync also unmappings in vmalloc_sync_all()
  mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy()

 arch/x86/mm/fault.c | 15 ++++++---------
 mm/vmalloc.c        |  9 +++++++++
 2 files changed, 15 insertions(+), 9 deletions(-)

-- 
2.16.4


^ permalink raw reply	[flat|nested] 11+ messages in thread

* [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one()
  2019-08-13 15:28 [PATCH 0/3 4.19-stable] Sync mappings in vmalloc/ioremap areas Joerg Roedel
@ 2019-08-13 15:28 ` Joerg Roedel
  2019-08-13 15:28 ` [PATCH 2/3] x86/mm: Sync also unmappings in vmalloc_sync_all() Joerg Roedel
  2019-08-13 15:28 ` [PATCH 3/3] mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy() Joerg Roedel
  2 siblings, 0 replies; 11+ messages in thread
From: Joerg Roedel @ 2019-08-13 15:28 UTC (permalink / raw)
  To: Greg Kroah-Hartman, stable
  Cc: Dave Hansen, Andy Lutomirski, Peter Zijlstra, Thomas Gleixner,
	Ingo Molnar, Borislav Petkov, linux-kernel, Joerg Roedel

From: Joerg Roedel <jroedel@suse.de>

commit 51b75b5b563a2637f9d8dc5bd02a31b2ff9e5ea0 upstream.

Do not require a struct page for the mapped memory location because it
might not exist. This can happen when an ioremapped region is mapped with
2MB pages.

Fixes: 5d72b4fba40ef ('x86, mm: support huge I/O mapping capability I/F')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lkml.kernel.org/r/20190719184652.11391-2-joro@8bytes.org
---
 arch/x86/mm/fault.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 9d9765e4d1ef..4d12176a470e 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -267,7 +267,7 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
 	if (!pmd_present(*pmd))
 		set_pmd(pmd, *pmd_k);
 	else
-		BUG_ON(pmd_page(*pmd) != pmd_page(*pmd_k));
+		BUG_ON(pmd_pfn(*pmd) != pmd_pfn(*pmd_k));
 
 	return pmd_k;
 }
-- 
2.16.4


^ permalink raw reply	[flat|nested] 11+ messages in thread

* [PATCH 2/3] x86/mm: Sync also unmappings in vmalloc_sync_all()
  2019-08-13 15:28 [PATCH 0/3 4.19-stable] Sync mappings in vmalloc/ioremap areas Joerg Roedel
  2019-08-13 15:28 ` [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one() Joerg Roedel
@ 2019-08-13 15:28 ` Joerg Roedel
  2019-08-13 15:28 ` [PATCH 3/3] mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy() Joerg Roedel
  2 siblings, 0 replies; 11+ messages in thread
From: Joerg Roedel @ 2019-08-13 15:28 UTC (permalink / raw)
  To: Greg Kroah-Hartman, stable
  Cc: Dave Hansen, Andy Lutomirski, Peter Zijlstra, Thomas Gleixner,
	Ingo Molnar, Borislav Petkov, linux-kernel, Joerg Roedel

From: Joerg Roedel <jroedel@suse.de>

commit 8e998fc24de47c55b47a887f6c95ab91acd4a720 upstream.

With huge-page ioremap areas the unmappings also need to be synced between
all page-tables. Otherwise it can cause data corruption when a region is
unmapped and later re-used.

Make the vmalloc_sync_one() function ready to sync unmappings and make sure
vmalloc_sync_all() iterates over all page-tables even when an unmapped PMD
is found.

Fixes: 5d72b4fba40ef ('x86, mm: support huge I/O mapping capability I/F')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lkml.kernel.org/r/20190719184652.11391-3-joro@8bytes.org
---
 arch/x86/mm/fault.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 4d12176a470e..1bcb7242ad79 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -261,11 +261,12 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
 
 	pmd = pmd_offset(pud, address);
 	pmd_k = pmd_offset(pud_k, address);
-	if (!pmd_present(*pmd_k))
-		return NULL;
 
-	if (!pmd_present(*pmd))
+	if (pmd_present(*pmd) != pmd_present(*pmd_k))
 		set_pmd(pmd, *pmd_k);
+
+	if (!pmd_present(*pmd_k))
+		return NULL;
 	else
 		BUG_ON(pmd_pfn(*pmd) != pmd_pfn(*pmd_k));
 
@@ -287,17 +288,13 @@ void vmalloc_sync_all(void)
 		spin_lock(&pgd_lock);
 		list_for_each_entry(page, &pgd_list, lru) {
 			spinlock_t *pgt_lock;
-			pmd_t *ret;
 
 			/* the pgt_lock only for Xen */
 			pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
 
 			spin_lock(pgt_lock);
-			ret = vmalloc_sync_one(page_address(page), address);
+			vmalloc_sync_one(page_address(page), address);
 			spin_unlock(pgt_lock);
-
-			if (!ret)
-				break;
 		}
 		spin_unlock(&pgd_lock);
 	}
-- 
2.16.4


^ permalink raw reply	[flat|nested] 11+ messages in thread

* [PATCH 3/3] mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy()
  2019-08-13 15:28 [PATCH 0/3 4.19-stable] Sync mappings in vmalloc/ioremap areas Joerg Roedel
  2019-08-13 15:28 ` [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one() Joerg Roedel
  2019-08-13 15:28 ` [PATCH 2/3] x86/mm: Sync also unmappings in vmalloc_sync_all() Joerg Roedel
@ 2019-08-13 15:28 ` Joerg Roedel
  2 siblings, 0 replies; 11+ messages in thread
From: Joerg Roedel @ 2019-08-13 15:28 UTC (permalink / raw)
  To: Greg Kroah-Hartman, stable
  Cc: Dave Hansen, Andy Lutomirski, Peter Zijlstra, Thomas Gleixner,
	Ingo Molnar, Borislav Petkov, linux-kernel, Joerg Roedel

From: Joerg Roedel <jroedel@suse.de>

commit 3f8fd02b1bf1d7ba964485a56f2f4b53ae88c167 upstream.

On x86-32 with PTI enabled, parts of the kernel page-tables are not shared
between processes. This can cause mappings in the vmalloc/ioremap area to
persist in some page-tables after the region is unmapped and released.

When the region is re-used the processes with the old mappings do not fault
in the new mappings but still access the old ones.

This causes undefined behavior, in reality often data corruption, kernel
oopses and panics and even spontaneous reboots.

Fix this problem by activly syncing unmaps in the vmalloc/ioremap area to
all page-tables in the system before the regions can be re-used.

References: https://bugzilla.suse.com/show_bug.cgi?id=1118689
Fixes: 5d72b4fba40ef ('x86, mm: support huge I/O mapping capability I/F')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lkml.kernel.org/r/20190719184652.11391-4-joro@8bytes.org
---
 mm/vmalloc.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index a46ec261a44e..2bca8e439afa 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -665,6 +665,12 @@ static bool __purge_vmap_area_lazy(unsigned long start, unsigned long end)
 
 	lockdep_assert_held(&vmap_purge_lock);
 
+	/*
+	 * First make sure the mappings are removed from all page-tables
+	 * before they are freed.
+	 */
+	vmalloc_sync_all();
+
 	valist = llist_del_all(&vmap_purge_list);
 	llist_for_each_entry(va, valist, purge_list) {
 		if (va->va_start < start)
@@ -2296,6 +2302,9 @@ EXPORT_SYMBOL(remap_vmalloc_range);
 /*
  * Implement a stub for vmalloc_sync_all() if the architecture chose not to
  * have one.
+ *
+ * The purpose of this function is to make sure the vmalloc area
+ * mappings are identical in all page-tables in the system.
  */
 void __weak vmalloc_sync_all(void)
 {
-- 
2.16.4


^ permalink raw reply	[flat|nested] 11+ messages in thread

* [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one()
  2019-08-13 15:28 [PATCH 0/3 5.2-stable] Sync mappings in vmalloc/ioremap areas Joerg Roedel
@ 2019-08-13 15:28 ` Joerg Roedel
  0 siblings, 0 replies; 11+ messages in thread
From: Joerg Roedel @ 2019-08-13 15:28 UTC (permalink / raw)
  To: Greg Kroah-Hartman, stable
  Cc: Dave Hansen, Andy Lutomirski, Peter Zijlstra, Thomas Gleixner,
	Ingo Molnar, Borislav Petkov, linux-kernel, Joerg Roedel

From: Joerg Roedel <jroedel@suse.de>

commit 51b75b5b563a2637f9d8dc5bd02a31b2ff9e5ea0 upstream.

Do not require a struct page for the mapped memory location because it
might not exist. This can happen when an ioremapped region is mapped with
2MB pages.

Fixes: 5d72b4fba40ef ('x86, mm: support huge I/O mapping capability I/F')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lkml.kernel.org/r/20190719184652.11391-2-joro@8bytes.org
---
 arch/x86/mm/fault.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 46df4c6aae46..499331be9bfe 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -200,7 +200,7 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
 	if (!pmd_present(*pmd))
 		set_pmd(pmd, *pmd_k);
 	else
-		BUG_ON(pmd_page(*pmd) != pmd_page(*pmd_k));
+		BUG_ON(pmd_pfn(*pmd) != pmd_pfn(*pmd_k));
 
 	return pmd_k;
 }
-- 
2.16.4


^ permalink raw reply	[flat|nested] 11+ messages in thread

* [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one()
  2019-07-19 18:46 [PATCH 0/3 v3] Sync unmappings in vmalloc/ioremap areas Joerg Roedel
@ 2019-07-19 18:46 ` Joerg Roedel
  0 siblings, 0 replies; 11+ messages in thread
From: Joerg Roedel @ 2019-07-19 18:46 UTC (permalink / raw)
  To: Dave Hansen, Andy Lutomirski, Peter Zijlstra, Thomas Gleixner,
	Ingo Molnar, Borislav Petkov
  Cc: Andrew Morton, linux-kernel, linux-mm, Joerg Roedel

From: Joerg Roedel <jroedel@suse.de>

Do not require a struct page for the mapped memory location
because it might not exist. This can happen when an
ioremapped region is mapped with 2MB pages.

Fixes: 5d72b4fba40ef ('x86, mm: support huge I/O mapping capability I/F')
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
 arch/x86/mm/fault.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index d1634c59ed56..d69f4e4d6918 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -183,7 +183,7 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
 	if (!pmd_present(*pmd))
 		set_pmd(pmd, *pmd_k);
 	else
-		BUG_ON(pmd_page(*pmd) != pmd_page(*pmd_k));
+		BUG_ON(pmd_pfn(*pmd) != pmd_pfn(*pmd_k));
 
 	return pmd_k;
 }
-- 
2.17.1


^ permalink raw reply	[flat|nested] 11+ messages in thread

* [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one()
  2019-07-17  7:14 [PATCH 0/3 v2] Sync unmappings in vmalloc/ioremap areas Joerg Roedel
@ 2019-07-17  7:14 ` Joerg Roedel
  0 siblings, 0 replies; 11+ messages in thread
From: Joerg Roedel @ 2019-07-17  7:14 UTC (permalink / raw)
  To: Dave Hansen, Andy Lutomirski, Peter Zijlstra, Thomas Gleixner,
	Ingo Molnar, Borislav Petkov
  Cc: Andrew Morton, linux-kernel, linux-mm, Joerg Roedel

From: Joerg Roedel <jroedel@suse.de>

Do not require a struct page for the mapped memory location
because it might not exist. This can happen when an
ioremapped region is mapped with 2MB pages.

Fixes: 5d72b4fba40ef ('x86, mm: support huge I/O mapping capability I/F')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
 arch/x86/mm/fault.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 794f364cb882..4a4049f6d458 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -200,7 +200,7 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
 	if (!pmd_present(*pmd))
 		set_pmd(pmd, *pmd_k);
 	else
-		BUG_ON(pmd_page(*pmd) != pmd_page(*pmd_k));
+		BUG_ON(pmd_pfn(*pmd) != pmd_pfn(*pmd_k));
 
 	return pmd_k;
 }
-- 
2.17.1


^ permalink raw reply	[flat|nested] 11+ messages in thread

* Re: [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one()
  2019-07-15 15:44     ` Joerg Roedel
@ 2019-07-15 18:48       ` Thomas Gleixner
  0 siblings, 0 replies; 11+ messages in thread
From: Thomas Gleixner @ 2019-07-15 18:48 UTC (permalink / raw)
  To: Joerg Roedel
  Cc: Joerg Roedel, Dave Hansen, Andy Lutomirski, Peter Zijlstra,
	Ingo Molnar, Borislav Petkov, Andrew Morton, linux-kernel,
	linux-mm

On Mon, 15 Jul 2019, Joerg Roedel wrote:
> On Mon, Jul 15, 2019 at 03:08:42PM +0200, Thomas Gleixner wrote:
> > On Mon, 15 Jul 2019, Joerg Roedel wrote:
> > 
> > > From: Joerg Roedel <jroedel@suse.de>
> > > 
> > > Do not require a struct page for the mapped memory location
> > > because it might not exist. This can happen when an
> > > ioremapped region is mapped with 2MB pages.
> > > 
> > > Signed-off-by: Joerg Roedel <jroedel@suse.de>
> > 
> > Lacks a Fixes tag, hmm?
> 
> Yeah, right, the question is, which commit to put in there. The problem
> results from two changes:
> 
> 	1) Introduction of !SHARED_KERNEL_PMD path in x86-32. In itself
> 	   this is not a problem, and the path was only enabled for
> 	   Xen-PV.
> 
> 	2) Huge IORemapings which use the PMD level. Also not a problem
> 	   by itself, but together with !SHARED_KERNEL_PMD problematic
> 	   because it requires to sync the PMD entries between all
> 	   page-tables, and that was not implemented.
> 
> Before PTI-x32 was merged this problem did not show up, maybe because
> the 32-bit Xen-PV users did not trigger it. But with PTI-x32 all PAE
> users run with !SHARED_KERNEL_PMD and the problem popped up.
> 
> For the last patch I put the PTI-x32 enablement commit in the fixes tag,
> because that was the one that showed up during bisection. But more
> correct would probably be
> 
> 	5d72b4fba40e ('x86, mm: support huge I/O mapping capability I/F')

Looks about right.

Thanks,

	tglx

^ permalink raw reply	[flat|nested] 11+ messages in thread

* Re: [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one()
  2019-07-15 13:08   ` Thomas Gleixner
@ 2019-07-15 15:44     ` Joerg Roedel
  2019-07-15 18:48       ` Thomas Gleixner
  0 siblings, 1 reply; 11+ messages in thread
From: Joerg Roedel @ 2019-07-15 15:44 UTC (permalink / raw)
  To: Thomas Gleixner
  Cc: Joerg Roedel, Dave Hansen, Andy Lutomirski, Peter Zijlstra,
	Ingo Molnar, Borislav Petkov, Andrew Morton, linux-kernel,
	linux-mm

On Mon, Jul 15, 2019 at 03:08:42PM +0200, Thomas Gleixner wrote:
> On Mon, 15 Jul 2019, Joerg Roedel wrote:
> 
> > From: Joerg Roedel <jroedel@suse.de>
> > 
> > Do not require a struct page for the mapped memory location
> > because it might not exist. This can happen when an
> > ioremapped region is mapped with 2MB pages.
> > 
> > Signed-off-by: Joerg Roedel <jroedel@suse.de>
> 
> Lacks a Fixes tag, hmm?

Yeah, right, the question is, which commit to put in there. The problem
results from two changes:

	1) Introduction of !SHARED_KERNEL_PMD path in x86-32. In itself
	   this is not a problem, and the path was only enabled for
	   Xen-PV.

	2) Huge IORemapings which use the PMD level. Also not a problem
	   by itself, but together with !SHARED_KERNEL_PMD problematic
	   because it requires to sync the PMD entries between all
	   page-tables, and that was not implemented.

Before PTI-x32 was merged this problem did not show up, maybe because
the 32-bit Xen-PV users did not trigger it. But with PTI-x32 all PAE
users run with !SHARED_KERNEL_PMD and the problem popped up.

For the last patch I put the PTI-x32 enablement commit in the fixes tag,
because that was the one that showed up during bisection. But more
correct would probably be

	5d72b4fba40e ('x86, mm: support huge I/O mapping capability I/F')

Or do I miss something?

Regards,

	Joerg



^ permalink raw reply	[flat|nested] 11+ messages in thread

* Re: [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one()
  2019-07-15 11:02 ` [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one() Joerg Roedel
@ 2019-07-15 13:08   ` Thomas Gleixner
  2019-07-15 15:44     ` Joerg Roedel
  0 siblings, 1 reply; 11+ messages in thread
From: Thomas Gleixner @ 2019-07-15 13:08 UTC (permalink / raw)
  To: Joerg Roedel
  Cc: Dave Hansen, Andy Lutomirski, Peter Zijlstra, Ingo Molnar,
	Borislav Petkov, Andrew Morton, linux-kernel, linux-mm,
	Joerg Roedel

On Mon, 15 Jul 2019, Joerg Roedel wrote:

> From: Joerg Roedel <jroedel@suse.de>
> 
> Do not require a struct page for the mapped memory location
> because it might not exist. This can happen when an
> ioremapped region is mapped with 2MB pages.
> 
> Signed-off-by: Joerg Roedel <jroedel@suse.de>

Lacks a Fixes tag, hmm?


^ permalink raw reply	[flat|nested] 11+ messages in thread

* [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one()
  2019-07-15 11:02 [PATCH 0/3] Sync unmappings in vmalloc/ioremap areas Joerg Roedel
@ 2019-07-15 11:02 ` Joerg Roedel
  2019-07-15 13:08   ` Thomas Gleixner
  0 siblings, 1 reply; 11+ messages in thread
From: Joerg Roedel @ 2019-07-15 11:02 UTC (permalink / raw)
  To: Dave Hansen, Andy Lutomirski, Peter Zijlstra, Thomas Gleixner,
	Ingo Molnar, Borislav Petkov
  Cc: Andrew Morton, linux-kernel, linux-mm, Joerg Roedel

From: Joerg Roedel <jroedel@suse.de>

Do not require a struct page for the mapped memory location
because it might not exist. This can happen when an
ioremapped region is mapped with 2MB pages.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
 arch/x86/mm/fault.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 794f364cb882..4a4049f6d458 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -200,7 +200,7 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
 	if (!pmd_present(*pmd))
 		set_pmd(pmd, *pmd_k);
 	else
-		BUG_ON(pmd_page(*pmd) != pmd_page(*pmd_k));
+		BUG_ON(pmd_pfn(*pmd) != pmd_pfn(*pmd_k));
 
 	return pmd_k;
 }
-- 
2.17.1


^ permalink raw reply	[flat|nested] 11+ messages in thread

end of thread, other threads:[~2019-08-13 15:28 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
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2019-08-13 15:28 [PATCH 0/3 4.19-stable] Sync mappings in vmalloc/ioremap areas Joerg Roedel
2019-08-13 15:28 ` [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one() Joerg Roedel
2019-08-13 15:28 ` [PATCH 2/3] x86/mm: Sync also unmappings in vmalloc_sync_all() Joerg Roedel
2019-08-13 15:28 ` [PATCH 3/3] mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy() Joerg Roedel
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2019-08-13 15:28 [PATCH 0/3 5.2-stable] Sync mappings in vmalloc/ioremap areas Joerg Roedel
2019-08-13 15:28 ` [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one() Joerg Roedel
2019-07-19 18:46 [PATCH 0/3 v3] Sync unmappings in vmalloc/ioremap areas Joerg Roedel
2019-07-19 18:46 ` [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one() Joerg Roedel
2019-07-17  7:14 [PATCH 0/3 v2] Sync unmappings in vmalloc/ioremap areas Joerg Roedel
2019-07-17  7:14 ` [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one() Joerg Roedel
2019-07-15 11:02 [PATCH 0/3] Sync unmappings in vmalloc/ioremap areas Joerg Roedel
2019-07-15 11:02 ` [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one() Joerg Roedel
2019-07-15 13:08   ` Thomas Gleixner
2019-07-15 15:44     ` Joerg Roedel
2019-07-15 18:48       ` Thomas Gleixner

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