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[PATCH OLK-5.10] netfilter: nf_tables: fix pointer math issue in nft_byteorder_eval()
by Liu Jian 21 Jan '24

21 Jan '24

From: Dan Carpenter <dan.carpenter(a)linaro.org> mainline inclusion from mainline-v6.7-rc2 commit c301f0981fdd3fd1ffac6836b423c4d7a8e0eb63 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I8WQRG CVE: CVE-2024-0607 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… --------------------------- The problem is in nft_byteorder_eval() where we are iterating through a loop and writing to dst[0], dst[1], dst[2] and so on... On each iteration we are writing 8 bytes. But dst[] is an array of u32 so each element only has space for 4 bytes. That means that every iteration overwrites part of the previous element. I spotted this bug while reviewing commit caf3ef7468f7 ("netfilter: nf_tables: prevent OOB access in nft_byteorder_eval") which is a related issue. I think that the reason we have not detected this bug in testing is that most of time we only write one element. Fixes: ce1e7989d989 ("netfilter: nft_byteorder: provide 64bit le/be conversion") Signed-off-by: Dan Carpenter <dan.carpenter(a)linaro.org> Signed-off-by: Pablo Neira Ayuso <pablo(a)netfilter.org> Signed-off-by: Liu Jian <liujian56(a)huawei.com> Conflicts: include/net/netfilter/nf_tables.h net/netfilter/nft_byteorder.c --- include/net/netfilter/nf_tables.h | 4 ++-- net/netfilter/nft_byteorder.c | 5 +++-- net/netfilter/nft_meta.c | 2 +- 3 files changed, 6 insertions(+), 5 deletions(-) diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index ea893a6d9b36..7550328080bf 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -132,9 +132,9 @@ static inline u16 nft_reg_load16(const u32 *sreg) return *(u16 *)sreg; } -static inline void nft_reg_store64(u32 *dreg, u64 val) +static inline void nft_reg_store64(u64 *dreg, u64 val) { - put_unaligned(val, (u64 *)dreg); + put_unaligned(val, dreg); } static inline u64 nft_reg_load64(const u32 *sreg) diff --git a/net/netfilter/nft_byteorder.c b/net/netfilter/nft_byteorder.c index 7b0b8fecb220..9d250bd60bb8 100644 --- a/net/netfilter/nft_byteorder.c +++ b/net/netfilter/nft_byteorder.c @@ -38,20 +38,21 @@ void nft_byteorder_eval(const struct nft_expr *expr, switch (priv->size) { case 8: { + u64 *dst64 = (void *)dst; u64 src64; switch (priv->op) { case NFT_BYTEORDER_NTOH: for (i = 0; i < priv->len / 8; i++) { src64 = nft_reg_load64(&src[i]); - nft_reg_store64(&dst[i], be64_to_cpu(src64)); + nft_reg_store64(&dst64[i], be64_to_cpu(src64)); } break; case NFT_BYTEORDER_HTON: for (i = 0; i < priv->len / 8; i++) { src64 = (__force __u64) cpu_to_be64(nft_reg_load64(&src[i])); - nft_reg_store64(&dst[i], src64); + nft_reg_store64(&dst64[i], src64); } break; } diff --git a/net/netfilter/nft_meta.c b/net/netfilter/nft_meta.c index 44d9b38e5f90..cb5bb0e21b66 100644 --- a/net/netfilter/nft_meta.c +++ b/net/netfilter/nft_meta.c @@ -63,7 +63,7 @@ nft_meta_get_eval_time(enum nft_meta_keys key, { switch (key) { case NFT_META_TIME_NS: - nft_reg_store64(dest, ktime_get_real_ns()); + nft_reg_store64((u64 *)dest, ktime_get_real_ns()); break; case NFT_META_TIME_DAY: nft_reg_store8(dest, nft_meta_weekday()); -- 2.34.1

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[PATCH OLK-6.6] sched: programmable: Fix is_cpu_allowed build error
by Cheng Yu 20 Jan '24

20 Jan '24

From: Guan Jing <guanjing6(a)huawei.com> hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I8OIT1 -------------------------------- Patch fixes build errors like this: kernel/sched/sched.h:3625:13: error: inlining failed in call to ‘always_inline’ ‘is_cpu_allowed’: function body not available Signed-off-by: Guan Jing <guanjing6(a)huawei.com> --- kernel/sched/core.c | 11 +++++++---- kernel/sched/fair.c | 2 +- kernel/sched/sched.h | 2 +- 3 files changed, 9 insertions(+), 6 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index f49884275d02..d4f19e578341 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -2469,11 +2469,7 @@ static inline bool rq_has_pinned_tasks(struct rq *rq) * Per-CPU kthreads are allowed to run on !active && online CPUs, see * __set_cpus_allowed_ptr() and select_fallback_rq(). */ -#ifdef CONFIG_BPF_SCHED -inline bool is_cpu_allowed(struct task_struct *p, int cpu) -#else static inline bool is_cpu_allowed(struct task_struct *p, int cpu) -#endif { /* When not in the task's cpumask, no point in looking further. */ if (!cpumask_test_cpu(cpu, p->cpus_ptr)) @@ -2499,6 +2495,13 @@ static inline bool is_cpu_allowed(struct task_struct *p, int cpu) return cpu_online(cpu); } +#ifdef CONFIG_BPF_SCHED +bool bpf_sched_is_cpu_allowed(struct task_struct *p, int cpu) +{ + return is_cpu_allowed(p, cpu); +} +#endif + /* * This is how migration works: * diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index b0f65c68f6bb..8e180ede46d3 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -8523,7 +8523,7 @@ select_task_rq_fair(struct task_struct *p, int prev_cpu, int wake_flags) ctx.select_idle_mask = this_cpu_cpumask_var_ptr(select_idle_mask); ret = bpf_sched_cfs_select_rq(&ctx); - if (ret >= 0 && is_cpu_allowed(p, ret)) { + if (ret >= 0 && bpf_sched_is_cpu_allowed(p, ret)) { rcu_read_unlock(); return ret; } diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index b7ba69337453..150c65128adb 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -3622,7 +3622,7 @@ extern u64 avg_vruntime(struct cfs_rq *cfs_rq); extern int entity_eligible(struct cfs_rq *cfs_rq, struct sched_entity *se); #ifdef CONFIG_BPF_SCHED -inline bool is_cpu_allowed(struct task_struct *p, int cpu); +bool bpf_sched_is_cpu_allowed(struct task_struct *p, int cpu); #endif #endif /* _KERNEL_SCHED_SCHED_H */ -- 2.34.1

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[PATCH OLK-6.6] sched: programmable: Fix is_cpu_allowed build error
by Cheng Yu 20 Jan '24

20 Jan '24

From: Guan Jing <guanjing6(a)huawei.com> hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I8OIT1 -------------------------------- Patch fixes build errors like this: kernel/sched/sched.h:3625:13: error: inlining failed in call to ‘always_inline’ ‘is_cpu_allowed’: function body not available Signed-off-by: Guan Jing <guanjing6(a)huawei.com> --- kernel/sched/core.c | 34 ---------------------------------- kernel/sched/sched.h | 33 ++++++++++++++++++++++++++++++--- 2 files changed, 30 insertions(+), 37 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index f49884275d02..fab7d434bd9b 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -2465,40 +2465,6 @@ static inline bool rq_has_pinned_tasks(struct rq *rq) return rq->nr_pinned; } -/* - * Per-CPU kthreads are allowed to run on !active && online CPUs, see - * __set_cpus_allowed_ptr() and select_fallback_rq(). - */ -#ifdef CONFIG_BPF_SCHED -inline bool is_cpu_allowed(struct task_struct *p, int cpu) -#else -static inline bool is_cpu_allowed(struct task_struct *p, int cpu) -#endif -{ - /* When not in the task's cpumask, no point in looking further. */ - if (!cpumask_test_cpu(cpu, p->cpus_ptr)) - return false; - - /* migrate_disabled() must be allowed to finish. */ - if (is_migration_disabled(p)) - return cpu_online(cpu); - - /* Non kernel threads are not allowed during either online or offline. */ - if (!(p->flags & PF_KTHREAD)) - return cpu_active(cpu) && task_cpu_possible(cpu, p); - - /* KTHREAD_IS_PER_CPU is always allowed. */ - if (kthread_is_per_cpu(p)) - return cpu_online(cpu); - - /* Regular kernel threads don't get to stay during offline. */ - if (cpu_dying(cpu)) - return false; - - /* But are allowed during online. */ - return cpu_online(cpu); -} - /* * This is how migration works: * diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index b7ba69337453..f23550fa4b73 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -68,6 +68,7 @@ #include <linux/wait_api.h> #include <linux/wait_bit.h> #include <linux/workqueue_api.h> +#include <linux/mmu_context.h> #include <trace/events/power.h> #include <trace/events/sched.h> @@ -3621,8 +3622,34 @@ static inline void init_sched_mm_cid(struct task_struct *t) { } extern u64 avg_vruntime(struct cfs_rq *cfs_rq); extern int entity_eligible(struct cfs_rq *cfs_rq, struct sched_entity *se); -#ifdef CONFIG_BPF_SCHED -inline bool is_cpu_allowed(struct task_struct *p, int cpu); -#endif +/* + * Per-CPU kthreads are allowed to run on !active && online CPUs, see + * __set_cpus_allowed_ptr() and select_fallback_rq(). + */ +static inline bool is_cpu_allowed(struct task_struct *p, int cpu) +{ + /* When not in the task's cpumask, no point in looking further. */ + if (!cpumask_test_cpu(cpu, p->cpus_ptr)) + return false; + + /* migrate_disabled() must be allowed to finish. */ + if (is_migration_disabled(p)) + return cpu_online(cpu); + + /* Non kernel threads are not allowed during either online or offline. */ + if (!(p->flags & PF_KTHREAD)) + return cpu_active(cpu) && task_cpu_possible(cpu, p); + + /* KTHREAD_IS_PER_CPU is always allowed. */ + if (kthread_is_per_cpu(p)) + return cpu_online(cpu); + + /* Regular kernel threads don't get to stay during offline. */ + if (cpu_dying(cpu)) + return false; + + /* But are allowed during online. */ + return cpu_online(cpu); +} #endif /* _KERNEL_SCHED_SCHED_H */ -- 2.34.1

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[PATCH] sched: programmable: Fix is_cpu_allowed build error
by Cheng Yu 20 Jan '24

20 Jan '24

From: Guan Jing <guanjing6(a)huawei.com> hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I8OIT1 -------------------------------- Patch fixes build errors like this: kernel/sched/sched.h:3625:13: error: inlining failed in call to ‘always_inline’ ‘is_cpu_allowed’: function body not available Signed-off-by: Guan Jing <guanjing6(a)huawei.com> --- kernel/sched/core.c | 34 ---------------------------------- kernel/sched/sched.h | 33 ++++++++++++++++++++++++++++++--- 2 files changed, 30 insertions(+), 37 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index f49884275d02..fab7d434bd9b 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -2465,40 +2465,6 @@ static inline bool rq_has_pinned_tasks(struct rq *rq) return rq->nr_pinned; } -/* - * Per-CPU kthreads are allowed to run on !active && online CPUs, see - * __set_cpus_allowed_ptr() and select_fallback_rq(). - */ -#ifdef CONFIG_BPF_SCHED -inline bool is_cpu_allowed(struct task_struct *p, int cpu) -#else -static inline bool is_cpu_allowed(struct task_struct *p, int cpu) -#endif -{ - /* When not in the task's cpumask, no point in looking further. */ - if (!cpumask_test_cpu(cpu, p->cpus_ptr)) - return false; - - /* migrate_disabled() must be allowed to finish. */ - if (is_migration_disabled(p)) - return cpu_online(cpu); - - /* Non kernel threads are not allowed during either online or offline. */ - if (!(p->flags & PF_KTHREAD)) - return cpu_active(cpu) && task_cpu_possible(cpu, p); - - /* KTHREAD_IS_PER_CPU is always allowed. */ - if (kthread_is_per_cpu(p)) - return cpu_online(cpu); - - /* Regular kernel threads don't get to stay during offline. */ - if (cpu_dying(cpu)) - return false; - - /* But are allowed during online. */ - return cpu_online(cpu); -} - /* * This is how migration works: * diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index b7ba69337453..f23550fa4b73 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -68,6 +68,7 @@ #include <linux/wait_api.h> #include <linux/wait_bit.h> #include <linux/workqueue_api.h> +#include <linux/mmu_context.h> #include <trace/events/power.h> #include <trace/events/sched.h> @@ -3621,8 +3622,34 @@ static inline void init_sched_mm_cid(struct task_struct *t) { } extern u64 avg_vruntime(struct cfs_rq *cfs_rq); extern int entity_eligible(struct cfs_rq *cfs_rq, struct sched_entity *se); -#ifdef CONFIG_BPF_SCHED -inline bool is_cpu_allowed(struct task_struct *p, int cpu); -#endif +/* + * Per-CPU kthreads are allowed to run on !active && online CPUs, see + * __set_cpus_allowed_ptr() and select_fallback_rq(). + */ +static inline bool is_cpu_allowed(struct task_struct *p, int cpu) +{ + /* When not in the task's cpumask, no point in looking further. */ + if (!cpumask_test_cpu(cpu, p->cpus_ptr)) + return false; + + /* migrate_disabled() must be allowed to finish. */ + if (is_migration_disabled(p)) + return cpu_online(cpu); + + /* Non kernel threads are not allowed during either online or offline. */ + if (!(p->flags & PF_KTHREAD)) + return cpu_active(cpu) && task_cpu_possible(cpu, p); + + /* KTHREAD_IS_PER_CPU is always allowed. */ + if (kthread_is_per_cpu(p)) + return cpu_online(cpu); + + /* Regular kernel threads don't get to stay during offline. */ + if (cpu_dying(cpu)) + return false; + + /* But are allowed during online. */ + return cpu_online(cpu); +} #endif /* _KERNEL_SCHED_SCHED_H */ -- 2.34.1

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[PATCH OLK-5.10 v2 0/2] x86/quirks: Add parameter to clear MSIs early
by Zheng Zengkai 19 Jan '24

19 Jan '24

A crash kernel boot failure issue is reported in openeuler 5.10 series kernel(in x86 virtual machine with Hi1822 virtual nic). Finally the issue was narrowed down to irq vector conflict. Backport following patchset from kernel maillist to fix this issue. https://lore.kernel.org/linux-pci/20181018183721.27467-3-gpiccoli@canonical… Guilherme G. Piccoli (2): x86/PCI: Export find_cap() to be used in early PCI code x86/quirks: Add parameter to clear MSIs early on boot .../admin-guide/kernel-parameters.txt | 6 ++++ arch/x86/include/asm/pci-direct.h | 2 ++ arch/x86/kernel/aperture_64.c | 30 ++--------------- arch/x86/kernel/early-quirks.c | 32 +++++++++++++++++++ arch/x86/pci/common.c | 4 +++ arch/x86/pci/early.c | 25 +++++++++++++++ 6 files changed, 71 insertions(+), 28 deletions(-) -- 2.20.1

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[PATCH OLK-5.10 V1] ida: Fix crash in ida_free when the bitmap is empty
by Cheng Yu 19 Jan '24

19 Jan '24

From: "Matthew Wilcox (Oracle)" <willy(a)infradead.org> mainline inclusion from mainline-v6.7-rc7 commit af73483f4e8b6f5c68c9aa63257bdd929a9c194a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I8WBGZ CVE: CVE-2023-6915 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The IDA usually detects double-frees, but that detection failed to consider the case when there are no nearby IDs allocated and so we have a NULL bitmap rather than simply having a clear bit. Add some tests to the test-suite to be sure we don't inadvertently reintroduce this problem. Unfortunately they're quite noisy so include a message to disregard the warnings. Reported-by: Zhenghan Wang <wzhmmmmm(a)gmail.com> Signed-off-by: Matthew Wilcox (Oracle) <willy(a)infradead.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> Signed-off-by: Cheng Yu <serein.chengyu(a)huawei.com> --- lib/idr.c | 2 +- lib/test_ida.c | 40 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+), 1 deletion(-) diff --git a/lib/idr.c b/lib/idr.c index 7ecdfdb5309e..8331b44dd39e 100644 --- a/lib/idr.c +++ b/lib/idr.c @@ -508,7 +508,7 @@ void ida_free(struct ida *ida, unsigned int id) goto delete; xas_store(&xas, xa_mk_value(v)); } else { - if (!test_bit(bit, bitmap->bitmap)) + if (!bitmap || !test_bit(bit, bitmap->bitmap)) goto err; __clear_bit(bit, bitmap->bitmap); xas_set_mark(&xas, XA_FREE_MARK); diff --git a/lib/test_ida.c b/lib/test_ida.c index b06880625961..55105baa19da 100644 --- a/lib/test_ida.c +++ b/lib/test_ida.c @@ -150,6 +150,45 @@ static void ida_check_conv(struct ida *ida) IDA_BUG_ON(ida, !ida_is_empty(ida)); } +/* + * Check various situations where we attempt to free an ID we don't own. + */ +static void ida_check_bad_free(struct ida *ida) +{ + unsigned long i; + + printk("vvv Ignore \"not allocated\" warnings\n"); + /* IDA is empty; all of these will fail */ + ida_free(ida, 0); + for (i = 0; i < 31; i++) + ida_free(ida, 1 << i); + + /* IDA contains a single value entry */ + IDA_BUG_ON(ida, ida_alloc_min(ida, 3, GFP_KERNEL) != 3); + ida_free(ida, 0); + for (i = 0; i < 31; i++) + ida_free(ida, 1 << i); + + /* IDA contains a single bitmap */ + IDA_BUG_ON(ida, ida_alloc_min(ida, 1023, GFP_KERNEL) != 1023); + ida_free(ida, 0); + for (i = 0; i < 31; i++) + ida_free(ida, 1 << i); + + /* IDA contains a tree */ + IDA_BUG_ON(ida, ida_alloc_min(ida, (1 << 20) - 1, GFP_KERNEL) != (1 << 20) - 1); + ida_free(ida, 0); + for (i = 0; i < 31; i++) + ida_free(ida, 1 << i); + printk("^^^ \"not allocated\" warnings over\n"); + + ida_free(ida, 3); + ida_free(ida, 1023); + ida_free(ida, (1 << 20) - 1); + + IDA_BUG_ON(ida, !ida_is_empty(ida)); +} + static DEFINE_IDA(ida); static int ida_checks(void) @@ -162,6 +201,7 @@ static int ida_checks(void) ida_check_leaf(&ida, 1024 * 64); ida_check_max(&ida); ida_check_conv(&ida); + ida_check_bad_free(&ida); printk("IDA: %u of %u tests passed\n", tests_passed, tests_run); return (tests_run != tests_passed) ? 0 : -EINVAL; -- 2.25.1

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[PATCH OLK-5.10 V1] ida: Fix crash in ida_free when the bitmap is empty
by Cheng Yu 19 Jan '24

19 Jan '24

From: "Matthew Wilcox (Oracle)" <willy(a)infradead.org> mainline inclusion from mainline-v6.7-rc7 commit af73483f4e8b6f5c68c9aa63257bdd929a9c194a category: bugfix bugzilla: 189479 CVE: CVE-2023-6915 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The IDA usually detects double-frees, but that detection failed to consider the case when there are no nearby IDs allocated and so we have a NULL bitmap rather than simply having a clear bit. Add some tests to the test-suite to be sure we don't inadvertently reintroduce this problem. Unfortunately they're quite noisy so include a message to disregard the warnings. Reported-by: Zhenghan Wang <wzhmmmmm(a)gmail.com> Signed-off-by: Matthew Wilcox (Oracle) <willy(a)infradead.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> Signed-off-by: Cheng Yu <serein.chengyu(a)huawei.com> --- lib/idr.c | 2 +- lib/test_ida.c | 40 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+), 1 deletion(-) diff --git a/lib/idr.c b/lib/idr.c index 7ecdfdb5309e..8331b44dd39e 100644 --- a/lib/idr.c +++ b/lib/idr.c @@ -508,7 +508,7 @@ void ida_free(struct ida *ida, unsigned int id) goto delete; xas_store(&xas, xa_mk_value(v)); } else { - if (!test_bit(bit, bitmap->bitmap)) + if (!bitmap || !test_bit(bit, bitmap->bitmap)) goto err; __clear_bit(bit, bitmap->bitmap); xas_set_mark(&xas, XA_FREE_MARK); diff --git a/lib/test_ida.c b/lib/test_ida.c index b06880625961..55105baa19da 100644 --- a/lib/test_ida.c +++ b/lib/test_ida.c @@ -150,6 +150,45 @@ static void ida_check_conv(struct ida *ida) IDA_BUG_ON(ida, !ida_is_empty(ida)); } +/* + * Check various situations where we attempt to free an ID we don't own. + */ +static void ida_check_bad_free(struct ida *ida) +{ + unsigned long i; + + printk("vvv Ignore \"not allocated\" warnings\n"); + /* IDA is empty; all of these will fail */ + ida_free(ida, 0); + for (i = 0; i < 31; i++) + ida_free(ida, 1 << i); + + /* IDA contains a single value entry */ + IDA_BUG_ON(ida, ida_alloc_min(ida, 3, GFP_KERNEL) != 3); + ida_free(ida, 0); + for (i = 0; i < 31; i++) + ida_free(ida, 1 << i); + + /* IDA contains a single bitmap */ + IDA_BUG_ON(ida, ida_alloc_min(ida, 1023, GFP_KERNEL) != 1023); + ida_free(ida, 0); + for (i = 0; i < 31; i++) + ida_free(ida, 1 << i); + + /* IDA contains a tree */ + IDA_BUG_ON(ida, ida_alloc_min(ida, (1 << 20) - 1, GFP_KERNEL) != (1 << 20) - 1); + ida_free(ida, 0); + for (i = 0; i < 31; i++) + ida_free(ida, 1 << i); + printk("^^^ \"not allocated\" warnings over\n"); + + ida_free(ida, 3); + ida_free(ida, 1023); + ida_free(ida, (1 << 20) - 1); + + IDA_BUG_ON(ida, !ida_is_empty(ida)); +} + static DEFINE_IDA(ida); static int ida_checks(void) @@ -162,6 +201,7 @@ static int ida_checks(void) ida_check_leaf(&ida, 1024 * 64); ida_check_max(&ida); ida_check_conv(&ida); + ida_check_bad_free(&ida); printk("IDA: %u of %u tests passed\n", tests_passed, tests_run); return (tests_run != tests_passed) ? 0 : -EINVAL; -- 2.25.1

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[PATCH OLK-6.6 0/6] backport two page_owner patchsets:
by Jinjiang Tu 19 Jan '24

19 Jan '24

Backport two page_owner patchsets: * Fix page_owner's use of free timestamps * mm/page_owner: record and dump free_pid and free_tgid Audra Mitchell (5): mm/page_owner: remove free_ts from page_owner output tools/mm: remove references to free_ts from page_owner_sort tools/mm: filter out timestamps for correct collation tools/mm: fix the default case for page_owner_sort tools/mm: update the usage output to be more organized Barry Song (1): mm/page_owner: record and dump free_pid and free_tgid mm/page_owner.c | 13 ++- tools/mm/page_owner_sort.c | 217 ++++++++++++++++++------------------- 2 files changed, 113 insertions(+), 117 deletions(-) -- 2.25.1

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[PATCH OLK-5.10 0/3] LoongArch: Optimize memory ops
by liweihao 19 Jan '24

19 Jan '24

Backport memory ops from upstream. WANG Rui (2): LoongArch: Optimize memory ops (memset/memcpy/memmove) LoongArch: Fix return value underflow in exception path Weihao Li (1): LoongArch: Adjust {copy, clear}_user exception handler behavior arch/loongarch/lib/clear_user.S | 166 +++++++++++++++---- arch/loongarch/lib/copy_user.S | 271 +++++++++++++++++++++++++------- arch/loongarch/lib/memcpy.S | 146 ++++++++++++++--- arch/loongarch/lib/memmove.S | 120 ++++++++------ arch/loongarch/lib/memset.S | 116 +++++++++++--- 5 files changed, 631 insertions(+), 188 deletions(-) -- 2.39.2

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[PATCH OLK-5.10 0/2] LoongArch: Allow usage of LSX/LASX in the kernel
by liweihao 19 Jan '24

19 Jan '24

Backport patches from upstream so we can use LSX/LASX in the kernel. Huacai Chen (2): LoongArch: Provide kernel fpu functions LoongArch: Allow usage of LSX/LASX in the kernel arch/loongarch/include/asm/fpu.h | 3 ++ arch/loongarch/kernel/Makefile | 2 +- arch/loongarch/kernel/kfpu.c | 90 ++++++++++++++++++++++++++++++++ 3 files changed, 94 insertions(+), 1 deletion(-) create mode 100644 arch/loongarch/kernel/kfpu.c -- 2.39.2

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