drop powerpc-64s-radix-don-t-need-to-broadcast-ipi-for-radix-pmd-collapse-flush.patch

from 5.15 and 5.10 as it needs another change at the same time.

diff --git a/queue-5.10/powerpc-64s-radix-don-t-need-to-broadcast-ipi-for-radix-pmd-collapse-flush.patch b/queue-5.10/powerpc-64s-radix-don-t-need-to-broadcast-ipi-for-radix-pmd-collapse-flush.patch
deleted file mode 100644 (file)
index a439f4c..0000000
--- a/queue-5.10/powerpc-64s-radix-don-t-need-to-broadcast-ipi-for-radix-pmd-collapse-flush.patch
+++ /dev/null
@@ -1,55 +0,0 @@
-From bedf03416913d88c796288f9dca109a53608c745 Mon Sep 17 00:00:00 2001
-From: Yang Shi <shy828301@gmail.com>
-Date: Wed, 7 Sep 2022 11:01:44 -0700
-Subject: powerpc/64s/radix: don't need to broadcast IPI for radix pmd collapse flush
-
-From: Yang Shi <shy828301@gmail.com>
-
-commit bedf03416913d88c796288f9dca109a53608c745 upstream.
-
-The IPI broadcast is used to serialize against fast-GUP, but fast-GUP will
-move to use RCU instead of disabling local interrupts in fast-GUP.  Using
-an IPI is the old-styled way of serializing against fast-GUP although it
-still works as expected now.
-
-And fast-GUP now fixed the potential race with THP collapse by checking
-whether PMD is changed or not.  So IPI broadcast in radix pmd collapse
-flush is not necessary anymore.  But it is still needed for hash TLB.
-
-Link: https://lkml.kernel.org/r/20220907180144.555485-2-shy828301@gmail.com
-Suggested-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
-Signed-off-by: Yang Shi <shy828301@gmail.com>
-Acked-by: David Hildenbrand <david@redhat.com>
-Acked-by: Peter Xu <peterx@redhat.com>
-Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
-Cc: Hugh Dickins <hughd@google.com>
-Cc: Jason Gunthorpe <jgg@nvidia.com>
-Cc: John Hubbard <jhubbard@nvidia.com>
-Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
-Cc: Michael Ellerman <mpe@ellerman.id.au>
-Cc: Nicholas Piggin <npiggin@gmail.com>
-Cc: <stable@vger.kernel.org>
-Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- arch/powerpc/mm/book3s64/radix_pgtable.c |    9 ---------
- 1 file changed, 9 deletions(-)
-
---- a/arch/powerpc/mm/book3s64/radix_pgtable.c
-+++ b/arch/powerpc/mm/book3s64/radix_pgtable.c
-@@ -997,15 +997,6 @@ pmd_t radix__pmdp_collapse_flush(struct
-       pmd = *pmdp;
-       pmd_clear(pmdp);
- 
--      /*
--       * pmdp collapse_flush need to ensure that there are no parallel gup
--       * walk after this call. This is needed so that we can have stable
--       * page ref count when collapsing a page. We don't allow a collapse page
--       * if we have gup taken on the page. We can ensure that by sending IPI
--       * because gup walk happens with IRQ disabled.
--       */
--      serialize_against_pte_lookup(vma->vm_mm);
--
-       radix__flush_tlb_collapsed_pmd(vma->vm_mm, address);
- 
-       return pmd;

diff --git a/queue-5.10/series b/queue-5.10/series
index d47d881da19150c40dec5c4a40b3c5a1fb65ff02..d780e6f15a38424e872be7a25ed3130e64c36445 100644 (file)
--- a/queue-5.10/series
+++ b/queue-5.10/series
@@ -16,7 +16,6 @@ clk-ingenic-tcu-properly-enable-registers-before-accessing-timers.patch
 arm-dts-integrator-tag-pci-host-with-device_type.patch
 ntfs-fix-bug_on-in-ntfs_lookup_inode_by_name.patch
 net-mt7531-only-do-pll-once-after-the-reset.patch
-powerpc-64s-radix-don-t-need-to-broadcast-ipi-for-radix-pmd-collapse-flush.patch
 libata-add-ata_horkage_nolpm-for-pioneer-bdr-207m-and-bdr-205.patch
 mmc-moxart-fix-4-bit-bus-width-and-remove-8-bit-bus-width.patch
 mmc-hsq-fix-data-stomping-during-mmc-recovery.patch

diff --git a/queue-5.15/powerpc-64s-radix-don-t-need-to-broadcast-ipi-for-radix-pmd-collapse-flush.patch b/queue-5.15/powerpc-64s-radix-don-t-need-to-broadcast-ipi-for-radix-pmd-collapse-flush.patch
deleted file mode 100644 (file)
index 7971536..0000000
--- a/queue-5.15/powerpc-64s-radix-don-t-need-to-broadcast-ipi-for-radix-pmd-collapse-flush.patch
+++ /dev/null
@@ -1,55 +0,0 @@
-From bedf03416913d88c796288f9dca109a53608c745 Mon Sep 17 00:00:00 2001
-From: Yang Shi <shy828301@gmail.com>
-Date: Wed, 7 Sep 2022 11:01:44 -0700
-Subject: powerpc/64s/radix: don't need to broadcast IPI for radix pmd collapse flush
-
-From: Yang Shi <shy828301@gmail.com>
-
-commit bedf03416913d88c796288f9dca109a53608c745 upstream.
-
-The IPI broadcast is used to serialize against fast-GUP, but fast-GUP will
-move to use RCU instead of disabling local interrupts in fast-GUP.  Using
-an IPI is the old-styled way of serializing against fast-GUP although it
-still works as expected now.
-
-And fast-GUP now fixed the potential race with THP collapse by checking
-whether PMD is changed or not.  So IPI broadcast in radix pmd collapse
-flush is not necessary anymore.  But it is still needed for hash TLB.
-
-Link: https://lkml.kernel.org/r/20220907180144.555485-2-shy828301@gmail.com
-Suggested-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
-Signed-off-by: Yang Shi <shy828301@gmail.com>
-Acked-by: David Hildenbrand <david@redhat.com>
-Acked-by: Peter Xu <peterx@redhat.com>
-Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
-Cc: Hugh Dickins <hughd@google.com>
-Cc: Jason Gunthorpe <jgg@nvidia.com>
-Cc: John Hubbard <jhubbard@nvidia.com>
-Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
-Cc: Michael Ellerman <mpe@ellerman.id.au>
-Cc: Nicholas Piggin <npiggin@gmail.com>
-Cc: <stable@vger.kernel.org>
-Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- arch/powerpc/mm/book3s64/radix_pgtable.c |    9 ---------
- 1 file changed, 9 deletions(-)
-
---- a/arch/powerpc/mm/book3s64/radix_pgtable.c
-+++ b/arch/powerpc/mm/book3s64/radix_pgtable.c
-@@ -954,15 +954,6 @@ pmd_t radix__pmdp_collapse_flush(struct
-       pmd = *pmdp;
-       pmd_clear(pmdp);
- 
--      /*
--       * pmdp collapse_flush need to ensure that there are no parallel gup
--       * walk after this call. This is needed so that we can have stable
--       * page ref count when collapsing a page. We don't allow a collapse page
--       * if we have gup taken on the page. We can ensure that by sending IPI
--       * because gup walk happens with IRQ disabled.
--       */
--      serialize_against_pte_lookup(vma->vm_mm);
--
-       radix__flush_tlb_collapsed_pmd(vma->vm_mm, address);
- 
-       return pmd;

diff --git a/queue-5.15/series b/queue-5.15/series
index 7df3ddae231f1222c9da3b19c61fb69049507e7f..7b969258092ec6323c4ca7ce37b43afc9dc88504 100644 (file)
--- a/queue-5.15/series
+++ b/queue-5.15/series
@@ -19,7 +19,6 @@ ntfs-fix-bug_on-in-ntfs_lookup_inode_by_name.patch
 mm-damon-dbgfs-fix-memory-leak-when-using-debugfs_lookup.patch
 net-mt7531-only-do-pll-once-after-the-reset.patch
 revert-firmware-arm_scmi-add-clock-management-to-the-scmi-power-domain.patch
-powerpc-64s-radix-don-t-need-to-broadcast-ipi-for-radix-pmd-collapse-flush.patch
 drm-i915-gt-restrict-forced-preemption-to-the-active-context.patch
 drm-amdgpu-add-amdgpu-suspend-resume-code-path-under-sriov.patch
 vduse-prevent-uninitialized-memory-accesses.patch