- Linux-stable-mirror - lists.linaro.org

by Greg Kroah-Hartman

I'm announcing the release of the 6.12.38 kernel. Only users of AMD x86-based processors need to upgrade, all others may skip this release. The updated 6.12.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-6.12.y and can be browsed at the normal kernel.org git web browser: https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Makefile | 2 +- arch/x86/kernel/cpu/amd.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) Borislav Petkov (AMD) (1): x86/CPU/AMD: Properly check the TSA microcode Greg Kroah-Hartman (1): Linux 6.12.38

3 months, 3 weeks

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Linux 6.6.98

by Greg Kroah-Hartman

I'm announcing the release of the 6.6.98 kernel. Only users of AMD x86-based processors need to upgrade, all others may skip this release. The updated 6.6.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-6.6.y and can be browsed at the normal kernel.org git web browser: https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Makefile | 2 +- arch/x86/kernel/cpu/amd.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) Borislav Petkov (AMD) (1): x86/CPU/AMD: Properly check the TSA microcode Greg Kroah-Hartman (1): Linux 6.6.98

3 months, 3 weeks

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Linux 6.1.145

by Greg Kroah-Hartman

I'm announcing the release of the 6.1.145 kernel. Only users of AMD x86-based processors need to upgrade, all others may skip this release. The updated 6.1.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-6.1.y and can be browsed at the normal kernel.org git web browser: https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Makefile | 2 +- arch/x86/kernel/cpu/amd.c | 5 +++-- 2 files changed, 4 insertions(+), 3 deletions(-) Borislav Petkov (AMD) (1): x86/CPU/AMD: Properly check the TSA microcode Greg Kroah-Hartman (1): Linux 6.1.145

3 months, 3 weeks

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Linux 5.15.188

by Greg Kroah-Hartman

I'm announcing the release of the 5.15.188 kernel. Only users of AMD x86-based processors need to upgrade, all others may skip this release. The updated 5.15.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.15.y and can be browsed at the normal kernel.org git web browser: https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Makefile | 2 +- arch/x86/kernel/cpu/amd.c | 5 +++-- 2 files changed, 4 insertions(+), 3 deletions(-) Borislav Petkov (AMD) (1): x86/CPU/AMD: Properly check the TSA microcode Greg Kroah-Hartman (1): Linux 5.15.188

3 months, 3 weeks

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FAILED: patch "[PATCH] x86/mm: Disable hugetlb page table sharing on 32-bit" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x 76303ee8d54bff6d9a6d55997acd88a6c2ba63cf # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025071423-imbecile-slander-d8e9@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 76303ee8d54bff6d9a6d55997acd88a6c2ba63cf Mon Sep 17 00:00:00 2001 From: Jann Horn <jannh(a)google.com> Date: Wed, 2 Jul 2025 10:32:04 +0200 Subject: [PATCH] x86/mm: Disable hugetlb page table sharing on 32-bit Only select ARCH_WANT_HUGE_PMD_SHARE on 64-bit x86. Page table sharing requires at least three levels because it involves shared references to PMD tables; 32-bit x86 has either two-level paging (without PAE) or three-level paging (with PAE), but even with three-level paging, having a dedicated PGD entry for hugetlb is only barely possible (because the PGD only has four entries), and it seems unlikely anyone's actually using PMD sharing on 32-bit. Having ARCH_WANT_HUGE_PMD_SHARE enabled on non-PAE 32-bit X86 (which has 2-level paging) became particularly problematic after commit 59d9094df3d7 ("mm: hugetlb: independent PMD page table shared count"), since that changes `struct ptdesc` such that the `pt_mm` (for PGDs) and the `pt_share_count` (for PMDs) share the same union storage - and with 2-level paging, PMDs are PGDs. (For comparison, arm64 also gates ARCH_WANT_HUGE_PMD_SHARE on the configuration of page tables such that it is never enabled with 2-level paging.) Closes: https://lore.kernel.org/r/srhpjxlqfna67blvma5frmy3aa@altlinux.org Fixes: cfe28c5d63d8 ("x86: mm: Remove x86 version of huge_pmd_share.") Reported-by: Vitaly Chikunov <vt(a)altlinux.org> Suggested-by: Dave Hansen <dave.hansen(a)intel.com> Signed-off-by: Jann Horn <jannh(a)google.com> Signed-off-by: Dave Hansen <dave.hansen(a)linux.intel.com> Acked-by: Oscar Salvador <osalvador(a)suse.de> Acked-by: David Hildenbrand <david(a)redhat.com> Tested-by: Vitaly Chikunov <vt(a)altlinux.org> Cc:stable@vger.kernel.org Link: https://lore.kernel.org/all/20250702-x86-2level-hugetlb-v2-1-1a98096edf92%4… diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 71019b3b54ea..4e0fe688cc83 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -147,7 +147,7 @@ config X86 select ARCH_WANTS_DYNAMIC_TASK_STRUCT select ARCH_WANTS_NO_INSTR select ARCH_WANT_GENERAL_HUGETLB - select ARCH_WANT_HUGE_PMD_SHARE + select ARCH_WANT_HUGE_PMD_SHARE if X86_64 select ARCH_WANT_LD_ORPHAN_WARN select ARCH_WANT_OPTIMIZE_DAX_VMEMMAP if X86_64 select ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP if X86_64

3 months, 3 weeks

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FAILED: patch "[PATCH] x86/mm: Disable hugetlb page table sharing on 32-bit" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x 76303ee8d54bff6d9a6d55997acd88a6c2ba63cf # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025071422-target-professor-6f97@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 76303ee8d54bff6d9a6d55997acd88a6c2ba63cf Mon Sep 17 00:00:00 2001 From: Jann Horn <jannh(a)google.com> Date: Wed, 2 Jul 2025 10:32:04 +0200 Subject: [PATCH] x86/mm: Disable hugetlb page table sharing on 32-bit Only select ARCH_WANT_HUGE_PMD_SHARE on 64-bit x86. Page table sharing requires at least three levels because it involves shared references to PMD tables; 32-bit x86 has either two-level paging (without PAE) or three-level paging (with PAE), but even with three-level paging, having a dedicated PGD entry for hugetlb is only barely possible (because the PGD only has four entries), and it seems unlikely anyone's actually using PMD sharing on 32-bit. Having ARCH_WANT_HUGE_PMD_SHARE enabled on non-PAE 32-bit X86 (which has 2-level paging) became particularly problematic after commit 59d9094df3d7 ("mm: hugetlb: independent PMD page table shared count"), since that changes `struct ptdesc` such that the `pt_mm` (for PGDs) and the `pt_share_count` (for PMDs) share the same union storage - and with 2-level paging, PMDs are PGDs. (For comparison, arm64 also gates ARCH_WANT_HUGE_PMD_SHARE on the configuration of page tables such that it is never enabled with 2-level paging.) Closes: https://lore.kernel.org/r/srhpjxlqfna67blvma5frmy3aa@altlinux.org Fixes: cfe28c5d63d8 ("x86: mm: Remove x86 version of huge_pmd_share.") Reported-by: Vitaly Chikunov <vt(a)altlinux.org> Suggested-by: Dave Hansen <dave.hansen(a)intel.com> Signed-off-by: Jann Horn <jannh(a)google.com> Signed-off-by: Dave Hansen <dave.hansen(a)linux.intel.com> Acked-by: Oscar Salvador <osalvador(a)suse.de> Acked-by: David Hildenbrand <david(a)redhat.com> Tested-by: Vitaly Chikunov <vt(a)altlinux.org> Cc:stable@vger.kernel.org Link: https://lore.kernel.org/all/20250702-x86-2level-hugetlb-v2-1-1a98096edf92%4… diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 71019b3b54ea..4e0fe688cc83 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -147,7 +147,7 @@ config X86 select ARCH_WANTS_DYNAMIC_TASK_STRUCT select ARCH_WANTS_NO_INSTR select ARCH_WANT_GENERAL_HUGETLB - select ARCH_WANT_HUGE_PMD_SHARE + select ARCH_WANT_HUGE_PMD_SHARE if X86_64 select ARCH_WANT_LD_ORPHAN_WARN select ARCH_WANT_OPTIMIZE_DAX_VMEMMAP if X86_64 select ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP if X86_64

3 months, 3 weeks

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FAILED: patch "[PATCH] x86/mm: Disable hugetlb page table sharing on 32-bit" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x 76303ee8d54bff6d9a6d55997acd88a6c2ba63cf # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025071421-molar-theme-43d7@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 76303ee8d54bff6d9a6d55997acd88a6c2ba63cf Mon Sep 17 00:00:00 2001 From: Jann Horn <jannh(a)google.com> Date: Wed, 2 Jul 2025 10:32:04 +0200 Subject: [PATCH] x86/mm: Disable hugetlb page table sharing on 32-bit Only select ARCH_WANT_HUGE_PMD_SHARE on 64-bit x86. Page table sharing requires at least three levels because it involves shared references to PMD tables; 32-bit x86 has either two-level paging (without PAE) or three-level paging (with PAE), but even with three-level paging, having a dedicated PGD entry for hugetlb is only barely possible (because the PGD only has four entries), and it seems unlikely anyone's actually using PMD sharing on 32-bit. Having ARCH_WANT_HUGE_PMD_SHARE enabled on non-PAE 32-bit X86 (which has 2-level paging) became particularly problematic after commit 59d9094df3d7 ("mm: hugetlb: independent PMD page table shared count"), since that changes `struct ptdesc` such that the `pt_mm` (for PGDs) and the `pt_share_count` (for PMDs) share the same union storage - and with 2-level paging, PMDs are PGDs. (For comparison, arm64 also gates ARCH_WANT_HUGE_PMD_SHARE on the configuration of page tables such that it is never enabled with 2-level paging.) Closes: https://lore.kernel.org/r/srhpjxlqfna67blvma5frmy3aa@altlinux.org Fixes: cfe28c5d63d8 ("x86: mm: Remove x86 version of huge_pmd_share.") Reported-by: Vitaly Chikunov <vt(a)altlinux.org> Suggested-by: Dave Hansen <dave.hansen(a)intel.com> Signed-off-by: Jann Horn <jannh(a)google.com> Signed-off-by: Dave Hansen <dave.hansen(a)linux.intel.com> Acked-by: Oscar Salvador <osalvador(a)suse.de> Acked-by: David Hildenbrand <david(a)redhat.com> Tested-by: Vitaly Chikunov <vt(a)altlinux.org> Cc:stable@vger.kernel.org Link: https://lore.kernel.org/all/20250702-x86-2level-hugetlb-v2-1-1a98096edf92%4… diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 71019b3b54ea..4e0fe688cc83 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -147,7 +147,7 @@ config X86 select ARCH_WANTS_DYNAMIC_TASK_STRUCT select ARCH_WANTS_NO_INSTR select ARCH_WANT_GENERAL_HUGETLB - select ARCH_WANT_HUGE_PMD_SHARE + select ARCH_WANT_HUGE_PMD_SHARE if X86_64 select ARCH_WANT_LD_ORPHAN_WARN select ARCH_WANT_OPTIMIZE_DAX_VMEMMAP if X86_64 select ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP if X86_64

3 months, 3 weeks

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FAILED: patch "[PATCH] x86/mm: Disable hugetlb page table sharing on 32-bit" failed to apply to 6.1-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.1-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x 76303ee8d54bff6d9a6d55997acd88a6c2ba63cf # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025071420-occupy-vowel-a8a5@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 76303ee8d54bff6d9a6d55997acd88a6c2ba63cf Mon Sep 17 00:00:00 2001 From: Jann Horn <jannh(a)google.com> Date: Wed, 2 Jul 2025 10:32:04 +0200 Subject: [PATCH] x86/mm: Disable hugetlb page table sharing on 32-bit Only select ARCH_WANT_HUGE_PMD_SHARE on 64-bit x86. Page table sharing requires at least three levels because it involves shared references to PMD tables; 32-bit x86 has either two-level paging (without PAE) or three-level paging (with PAE), but even with three-level paging, having a dedicated PGD entry for hugetlb is only barely possible (because the PGD only has four entries), and it seems unlikely anyone's actually using PMD sharing on 32-bit. Having ARCH_WANT_HUGE_PMD_SHARE enabled on non-PAE 32-bit X86 (which has 2-level paging) became particularly problematic after commit 59d9094df3d7 ("mm: hugetlb: independent PMD page table shared count"), since that changes `struct ptdesc` such that the `pt_mm` (for PGDs) and the `pt_share_count` (for PMDs) share the same union storage - and with 2-level paging, PMDs are PGDs. (For comparison, arm64 also gates ARCH_WANT_HUGE_PMD_SHARE on the configuration of page tables such that it is never enabled with 2-level paging.) Closes: https://lore.kernel.org/r/srhpjxlqfna67blvma5frmy3aa@altlinux.org Fixes: cfe28c5d63d8 ("x86: mm: Remove x86 version of huge_pmd_share.") Reported-by: Vitaly Chikunov <vt(a)altlinux.org> Suggested-by: Dave Hansen <dave.hansen(a)intel.com> Signed-off-by: Jann Horn <jannh(a)google.com> Signed-off-by: Dave Hansen <dave.hansen(a)linux.intel.com> Acked-by: Oscar Salvador <osalvador(a)suse.de> Acked-by: David Hildenbrand <david(a)redhat.com> Tested-by: Vitaly Chikunov <vt(a)altlinux.org> Cc:stable@vger.kernel.org Link: https://lore.kernel.org/all/20250702-x86-2level-hugetlb-v2-1-1a98096edf92%4… diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 71019b3b54ea..4e0fe688cc83 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -147,7 +147,7 @@ config X86 select ARCH_WANTS_DYNAMIC_TASK_STRUCT select ARCH_WANTS_NO_INSTR select ARCH_WANT_GENERAL_HUGETLB - select ARCH_WANT_HUGE_PMD_SHARE + select ARCH_WANT_HUGE_PMD_SHARE if X86_64 select ARCH_WANT_LD_ORPHAN_WARN select ARCH_WANT_OPTIMIZE_DAX_VMEMMAP if X86_64 select ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP if X86_64

3 months, 3 weeks

2
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[PATCH 6.6] thermal/of: Fix mask mismatch when no trips subnode

by Hsin-Te Yuan

After commit 725f31f300e3 ("thermal/of: support thermal zones w/o trips subnode") was backported on 6.6 stable branch as commit d3304dbc2d5f ("thermal/of: support thermal zones w/o trips subnode"), thermal zones w/o trips subnode still fail to register since `mask` argument is not set correctly. When number of trips subnode is 0, `mask` must be 0 to pass the check in `thermal_zone_device_register_with_trips()`. Set `mask` to 0 when there's no trips subnode. Signed-off-by: Hsin-Te Yuan <yuanhsinte(a)chromium.org> --- drivers/thermal/thermal_of.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c index 0f520cf923a1e684411a3077ad283551395eec11..97aeb869abf5179dfa512dd744725121ec7fd0d9 100644 --- a/drivers/thermal/thermal_of.c +++ b/drivers/thermal/thermal_of.c @@ -514,7 +514,7 @@ static struct thermal_zone_device *thermal_of_zone_register(struct device_node * of_ops->bind = thermal_of_bind; of_ops->unbind = thermal_of_unbind; - mask = GENMASK_ULL((ntrips) - 1, 0); + mask = ntrips ? GENMASK_ULL((ntrips) - 1, 0) : 0; tz = thermal_zone_device_register_with_trips(np->name, trips, ntrips, mask, data, of_ops, &tzp, --- base-commit: a5df3a702b2cba82bcfb066fa9f5e4a349c33924 change-id: 20250707-trip-point-73dae9fd9c74 Best regards, -- Hsin-Te Yuan <yuanhsinte(a)chromium.org>

3 months, 3 weeks

4
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[PATCH v3 11/17] ext4: fix largest free orders lists corruption on mb_optimize_scan switch

by Baokun Li

The grp->bb_largest_free_order is updated regardless of whether mb_optimize_scan is enabled. This can lead to inconsistencies between grp->bb_largest_free_order and the actual s_mb_largest_free_orders list index when mb_optimize_scan is repeatedly enabled and disabled via remount. For example, if mb_optimize_scan is initially enabled, largest free order is 3, and the group is in s_mb_largest_free_orders[3]. Then, mb_optimize_scan is disabled via remount, block allocations occur, updating largest free order to 2. Finally, mb_optimize_scan is re-enabled via remount, more block allocations update largest free order to 1. At this point, the group would be removed from s_mb_largest_free_orders[3] under the protection of s_mb_largest_free_orders_locks[2]. This lock mismatch can lead to list corruption. To fix this, whenever grp->bb_largest_free_order changes, we now always attempt to remove the group from its old order list. However, we only insert the group into the new order list if `mb_optimize_scan` is enabled. This approach helps prevent lock inconsistencies and ensures the data in the order lists remains reliable. Fixes: 196e402adf2e ("ext4: improve cr 0 / cr 1 group scanning") CC: stable(a)vger.kernel.org Suggested-by: Jan Kara <jack(a)suse.cz> Signed-off-by: Baokun Li <libaokun1(a)huawei.com> --- fs/ext4/mballoc.c | 33 ++++++++++++++------------------- 1 file changed, 14 insertions(+), 19 deletions(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 72b20fc52bbf..fada0d1b3fdb 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -1152,33 +1152,28 @@ static void mb_set_largest_free_order(struct super_block *sb, struct ext4_group_info *grp) { struct ext4_sb_info *sbi = EXT4_SB(sb); - int i; + int new, old = grp->bb_largest_free_order; - for (i = MB_NUM_ORDERS(sb) - 1; i >= 0; i--) - if (grp->bb_counters[i] > 0) + for (new = MB_NUM_ORDERS(sb) - 1; new >= 0; new--) + if (grp->bb_counters[new] > 0) break; + /* No need to move between order lists? */ - if (!test_opt2(sb, MB_OPTIMIZE_SCAN) || - i == grp->bb_largest_free_order) { - grp->bb_largest_free_order = i; + if (new == old) return; - } - if (grp->bb_largest_free_order >= 0) { - write_lock(&sbi->s_mb_largest_free_orders_locks[ - grp->bb_largest_free_order]); + if (old >= 0 && !list_empty(&grp->bb_largest_free_order_node)) { + write_lock(&sbi->s_mb_largest_free_orders_locks[old]); list_del_init(&grp->bb_largest_free_order_node); - write_unlock(&sbi->s_mb_largest_free_orders_locks[ - grp->bb_largest_free_order]); + write_unlock(&sbi->s_mb_largest_free_orders_locks[old]); } - grp->bb_largest_free_order = i; - if (grp->bb_largest_free_order >= 0 && grp->bb_free) { - write_lock(&sbi->s_mb_largest_free_orders_locks[ - grp->bb_largest_free_order]); + + grp->bb_largest_free_order = new; + if (test_opt2(sb, MB_OPTIMIZE_SCAN) && new >= 0 && grp->bb_free) { + write_lock(&sbi->s_mb_largest_free_orders_locks[new]); list_add_tail(&grp->bb_largest_free_order_node, - &sbi->s_mb_largest_free_orders[grp->bb_largest_free_order]); - write_unlock(&sbi->s_mb_largest_free_orders_locks[ - grp->bb_largest_free_order]); + &sbi->s_mb_largest_free_orders[new]); + write_unlock(&sbi->s_mb_largest_free_orders_locks[new]); } } -- 2.46.1

3 months, 3 weeks

1
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