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FAILED: patch "[PATCH] mm/gup: check ref_count instead of lru before migration" 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 98c6d259319ecf6e8d027abd3f14b81324b8c0ad # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025092154-canon-user-98b7@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 98c6d259319ecf6e8d027abd3f14b81324b8c0ad Mon Sep 17 00:00:00 2001 From: Hugh Dickins <hughd(a)google.com> Date: Mon, 8 Sep 2025 15:15:03 -0700 Subject: [PATCH] mm/gup: check ref_count instead of lru before migration Patch series "mm: better GUP pin lru_add_drain_all()", v2. Series of lru_add_drain_all()-related patches, arising from recent mm/gup migration report from Will Deacon. This patch (of 5): Will Deacon reports:- When taking a longterm GUP pin via pin_user_pages(), __gup_longterm_locked() tries to migrate target folios that should not be longterm pinned, for example because they reside in a CMA region or movable zone. This is done by first pinning all of the target folios anyway, collecting all of the longterm-unpinnable target folios into a list, dropping the pins that were just taken and finally handing the list off to migrate_pages() for the actual migration. It is critically important that no unexpected references are held on the folios being migrated, otherwise the migration will fail and pin_user_pages() will return -ENOMEM to its caller. Unfortunately, it is relatively easy to observe migration failures when running pKVM (which uses pin_user_pages() on crosvm's virtual address space to resolve stage-2 page faults from the guest) on a 6.15-based Pixel 6 device and this results in the VM terminating prematurely. In the failure case, 'crosvm' has called mlock(MLOCK_ONFAULT) on its mapping of guest memory prior to the pinning. Subsequently, when pin_user_pages() walks the page-table, the relevant 'pte' is not present and so the faulting logic allocates a new folio, mlocks it with mlock_folio() and maps it in the page-table. Since commit 2fbb0c10d1e8 ("mm/munlock: mlock_page() munlock_page() batch by pagevec"), mlock/munlock operations on a folio (formerly page), are deferred. For example, mlock_folio() takes an additional reference on the target folio before placing it into a per-cpu 'folio_batch' for later processing by mlock_folio_batch(), which drops the refcount once the operation is complete. Processing of the batches is coupled with the LRU batch logic and can be forcefully drained with lru_add_drain_all() but as long as a folio remains unprocessed on the batch, its refcount will be elevated. This deferred batching therefore interacts poorly with the pKVM pinning scenario as we can find ourselves in a situation where the migration code fails to migrate a folio due to the elevated refcount from the pending mlock operation. Hugh Dickins adds:- !folio_test_lru() has never been a very reliable way to tell if an lru_add_drain_all() is worth calling, to remove LRU cache references to make the folio migratable: the LRU flag may be set even while the folio is held with an extra reference in a per-CPU LRU cache. 5.18 commit 2fbb0c10d1e8 may have made it more unreliable. Then 6.11 commit 33dfe9204f29 ("mm/gup: clear the LRU flag of a page before adding to LRU batch") tried to make it reliable, by moving LRU flag clearing; but missed the mlock/munlock batches, so still unreliable as reported. And it turns out to be difficult to extend 33dfe9204f29's LRU flag clearing to the mlock/munlock batches: if they do benefit from batching, mlock/munlock cannot be so effective when easily suppressed while !LRU. Instead, switch to an expected ref_count check, which was more reliable all along: some more false positives (unhelpful drains) than before, and never a guarantee that the folio will prove migratable, but better. Note on PG_private_2: ceph and nfs are still using the deprecated PG_private_2 flag, with the aid of netfs and filemap support functions. Although it is consistently matched by an increment of folio ref_count, folio_expected_ref_count() intentionally does not recognize it, and ceph folio migration currently depends on that for PG_private_2 folios to be rejected. New references to the deprecated flag are discouraged, so do not add it into the collect_longterm_unpinnable_folios() calculation: but longterm pinning of transiently PG_private_2 ceph and nfs folios (an uncommon case) may invoke a redundant lru_add_drain_all(). And this makes easy the backport to earlier releases: up to and including 6.12, btrfs also used PG_private_2, but without a ref_count increment. Note for stable backports: requires 6.16 commit 86ebd50224c0 ("mm: add folio_expected_ref_count() for reference count calculation"). Link: https://lkml.kernel.org/r/41395944-b0e3-c3ac-d648-8ddd70451d28@google.com Link: https://lkml.kernel.org/r/bd1f314a-fca1-8f19-cac0-b936c9614557@google.com Fixes: 9a4e9f3b2d73 ("mm: update get_user_pages_longterm to migrate pages allocated from CMA region") Signed-off-by: Hugh Dickins <hughd(a)google.com> Reported-by: Will Deacon <will(a)kernel.org> Closes: https://lore.kernel.org/linux-mm/20250815101858.24352-1-will@kernel.org/ Acked-by: Kiryl Shutsemau <kas(a)kernel.org> Acked-by: David Hildenbrand <david(a)redhat.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar(a)kernel.org> Cc: Axel Rasmussen <axelrasmussen(a)google.com> Cc: Chris Li <chrisl(a)kernel.org> Cc: Christoph Hellwig <hch(a)infradead.org> Cc: Jason Gunthorpe <jgg(a)ziepe.ca> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: John Hubbard <jhubbard(a)nvidia.com> Cc: Keir Fraser <keirf(a)google.com> Cc: Konstantin Khlebnikov <koct9i(a)gmail.com> Cc: Li Zhe <lizhe.67(a)bytedance.com> Cc: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: Peter Xu <peterx(a)redhat.com> Cc: Rik van Riel <riel(a)surriel.com> Cc: Shivank Garg <shivankg(a)amd.com> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: Wei Xu <weixugc(a)google.com> Cc: yangge <yangge1116(a)126.com> Cc: Yuanchu Xie <yuanchu(a)google.com> Cc: Yu Zhao <yuzhao(a)google.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> diff --git a/mm/gup.c b/mm/gup.c index adffe663594d..82aec6443c0a 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -2307,7 +2307,8 @@ static unsigned long collect_longterm_unpinnable_folios( continue; } - if (!folio_test_lru(folio) && drain_allow) { + if (drain_allow && folio_ref_count(folio) != + folio_expected_ref_count(folio) + 1) { lru_add_drain_all(); drain_allow = false; }

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FAILED: patch "[PATCH] mm/gup: check ref_count instead of lru before migration" 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 98c6d259319ecf6e8d027abd3f14b81324b8c0ad # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025092152-bobtail-scarring-ffff@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 98c6d259319ecf6e8d027abd3f14b81324b8c0ad Mon Sep 17 00:00:00 2001 From: Hugh Dickins <hughd(a)google.com> Date: Mon, 8 Sep 2025 15:15:03 -0700 Subject: [PATCH] mm/gup: check ref_count instead of lru before migration Patch series "mm: better GUP pin lru_add_drain_all()", v2. Series of lru_add_drain_all()-related patches, arising from recent mm/gup migration report from Will Deacon. This patch (of 5): Will Deacon reports:- When taking a longterm GUP pin via pin_user_pages(), __gup_longterm_locked() tries to migrate target folios that should not be longterm pinned, for example because they reside in a CMA region or movable zone. This is done by first pinning all of the target folios anyway, collecting all of the longterm-unpinnable target folios into a list, dropping the pins that were just taken and finally handing the list off to migrate_pages() for the actual migration. It is critically important that no unexpected references are held on the folios being migrated, otherwise the migration will fail and pin_user_pages() will return -ENOMEM to its caller. Unfortunately, it is relatively easy to observe migration failures when running pKVM (which uses pin_user_pages() on crosvm's virtual address space to resolve stage-2 page faults from the guest) on a 6.15-based Pixel 6 device and this results in the VM terminating prematurely. In the failure case, 'crosvm' has called mlock(MLOCK_ONFAULT) on its mapping of guest memory prior to the pinning. Subsequently, when pin_user_pages() walks the page-table, the relevant 'pte' is not present and so the faulting logic allocates a new folio, mlocks it with mlock_folio() and maps it in the page-table. Since commit 2fbb0c10d1e8 ("mm/munlock: mlock_page() munlock_page() batch by pagevec"), mlock/munlock operations on a folio (formerly page), are deferred. For example, mlock_folio() takes an additional reference on the target folio before placing it into a per-cpu 'folio_batch' for later processing by mlock_folio_batch(), which drops the refcount once the operation is complete. Processing of the batches is coupled with the LRU batch logic and can be forcefully drained with lru_add_drain_all() but as long as a folio remains unprocessed on the batch, its refcount will be elevated. This deferred batching therefore interacts poorly with the pKVM pinning scenario as we can find ourselves in a situation where the migration code fails to migrate a folio due to the elevated refcount from the pending mlock operation. Hugh Dickins adds:- !folio_test_lru() has never been a very reliable way to tell if an lru_add_drain_all() is worth calling, to remove LRU cache references to make the folio migratable: the LRU flag may be set even while the folio is held with an extra reference in a per-CPU LRU cache. 5.18 commit 2fbb0c10d1e8 may have made it more unreliable. Then 6.11 commit 33dfe9204f29 ("mm/gup: clear the LRU flag of a page before adding to LRU batch") tried to make it reliable, by moving LRU flag clearing; but missed the mlock/munlock batches, so still unreliable as reported. And it turns out to be difficult to extend 33dfe9204f29's LRU flag clearing to the mlock/munlock batches: if they do benefit from batching, mlock/munlock cannot be so effective when easily suppressed while !LRU. Instead, switch to an expected ref_count check, which was more reliable all along: some more false positives (unhelpful drains) than before, and never a guarantee that the folio will prove migratable, but better. Note on PG_private_2: ceph and nfs are still using the deprecated PG_private_2 flag, with the aid of netfs and filemap support functions. Although it is consistently matched by an increment of folio ref_count, folio_expected_ref_count() intentionally does not recognize it, and ceph folio migration currently depends on that for PG_private_2 folios to be rejected. New references to the deprecated flag are discouraged, so do not add it into the collect_longterm_unpinnable_folios() calculation: but longterm pinning of transiently PG_private_2 ceph and nfs folios (an uncommon case) may invoke a redundant lru_add_drain_all(). And this makes easy the backport to earlier releases: up to and including 6.12, btrfs also used PG_private_2, but without a ref_count increment. Note for stable backports: requires 6.16 commit 86ebd50224c0 ("mm: add folio_expected_ref_count() for reference count calculation"). Link: https://lkml.kernel.org/r/41395944-b0e3-c3ac-d648-8ddd70451d28@google.com Link: https://lkml.kernel.org/r/bd1f314a-fca1-8f19-cac0-b936c9614557@google.com Fixes: 9a4e9f3b2d73 ("mm: update get_user_pages_longterm to migrate pages allocated from CMA region") Signed-off-by: Hugh Dickins <hughd(a)google.com> Reported-by: Will Deacon <will(a)kernel.org> Closes: https://lore.kernel.org/linux-mm/20250815101858.24352-1-will@kernel.org/ Acked-by: Kiryl Shutsemau <kas(a)kernel.org> Acked-by: David Hildenbrand <david(a)redhat.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar(a)kernel.org> Cc: Axel Rasmussen <axelrasmussen(a)google.com> Cc: Chris Li <chrisl(a)kernel.org> Cc: Christoph Hellwig <hch(a)infradead.org> Cc: Jason Gunthorpe <jgg(a)ziepe.ca> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: John Hubbard <jhubbard(a)nvidia.com> Cc: Keir Fraser <keirf(a)google.com> Cc: Konstantin Khlebnikov <koct9i(a)gmail.com> Cc: Li Zhe <lizhe.67(a)bytedance.com> Cc: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: Peter Xu <peterx(a)redhat.com> Cc: Rik van Riel <riel(a)surriel.com> Cc: Shivank Garg <shivankg(a)amd.com> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: Wei Xu <weixugc(a)google.com> Cc: yangge <yangge1116(a)126.com> Cc: Yuanchu Xie <yuanchu(a)google.com> Cc: Yu Zhao <yuzhao(a)google.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> diff --git a/mm/gup.c b/mm/gup.c index adffe663594d..82aec6443c0a 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -2307,7 +2307,8 @@ static unsigned long collect_longterm_unpinnable_folios( continue; } - if (!folio_test_lru(folio) && drain_allow) { + if (drain_allow && folio_ref_count(folio) != + folio_expected_ref_count(folio) + 1) { lru_add_drain_all(); drain_allow = false; }

2 months

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[PATCH] ASoC: wcd934x: fix error handling in wcd934x_codec_parse_data()

by Ma Ke

wcd934x_codec_parse_data() contains a device reference count leak in of_slim_get_device() where device_find_child() increases the reference count of the device but this reference is not properly decreased in the success path. Add put_device() in wcd934x_codec_parse_data(), which ensures that the reference count of the device is correctly managed. Calling path: of_slim_get_device() -> of_find_slim_device() -> device_find_child(). As comment of device_find_child() says, 'NOTE: you will need to drop the reference with put_device() after use.'. Found by code review. Cc: stable(a)vger.kernel.org Fixes: a61f3b4f476e ("ASoC: wcd934x: add support to wcd9340/wcd9341 codec") Signed-off-by: Ma Ke <make24(a)iscas.ac.cn> --- sound/soc/codecs/wcd934x.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/wcd934x.c b/sound/soc/codecs/wcd934x.c index 1bb7e1dc7e6b..9ffa65329934 100644 --- a/sound/soc/codecs/wcd934x.c +++ b/sound/soc/codecs/wcd934x.c @@ -5849,10 +5849,13 @@ static int wcd934x_codec_parse_data(struct wcd934x_codec *wcd) slim_get_logical_addr(wcd->sidev); wcd->if_regmap = regmap_init_slimbus(wcd->sidev, &wcd934x_ifc_regmap_config); - if (IS_ERR(wcd->if_regmap)) + if (IS_ERR(wcd->if_regmap)) { + put_device(&wcd->sidev->dev); return dev_err_probe(dev, PTR_ERR(wcd->if_regmap), "Failed to allocate ifc register map\n"); + } + put_device(&wcd->sidev->dev); of_property_read_u32(dev->parent->of_node, "qcom,dmic-sample-rate", &wcd->dmic_sample_rate); -- 2.17.1

2 months

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[PATCH v2] RDMA/rxe: Fix race in do_task() when draining

by Gui-Dong Han

When do_task() exhausts its iteration budget (!ret), it sets the state to TASK_STATE_IDLE to reschedule, without a secondary check on the current task->state. This can overwrite the TASK_STATE_DRAINING state set by a concurrent call to rxe_cleanup_task() or rxe_disable_task(). While state changes are protected by a spinlock, both rxe_cleanup_task() and rxe_disable_task() release the lock while waiting for the task to finish draining in the while(!is_done(task)) loop. The race occurs if do_task() hits its iteration limit and acquires the lock in this window. The cleanup logic may then proceed while the task incorrectly reschedules itself, leading to a potential use-after-free. This bug was introduced during the migration from tasklets to workqueues, where the special handling for the draining case was lost. Fix this by restoring the original pre-migration behavior. If the state is TASK_STATE_DRAINING when iterations are exhausted, set cont to 1 to force a new loop iteration. This allows the task to finish its work, so that a subsequent iteration can reach the switch statement and correctly transition the state to TASK_STATE_DRAINED, stopping the task as intended. Fixes: 9b4b7c1f9f54 ("RDMA/rxe: Add workqueue support for rxe tasks") Cc: stable(a)vger.kernel.org Reviewed-by: Zhu Yanjun <yanjun.zhu(a)linux.dev> Signed-off-by: Gui-Dong Han <hanguidong02(a)gmail.com> --- v2: * Rewrite commit message for clarity. Thanks to Zhu Yanjun for the review. --- drivers/infiniband/sw/rxe/rxe_task.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/sw/rxe/rxe_task.c b/drivers/infiniband/sw/rxe/rxe_task.c index 6f8f353e9583..f522820b950c 100644 --- a/drivers/infiniband/sw/rxe/rxe_task.c +++ b/drivers/infiniband/sw/rxe/rxe_task.c @@ -132,8 +132,12 @@ static void do_task(struct rxe_task *task) * yield the cpu and reschedule the task */ if (!ret) { - task->state = TASK_STATE_IDLE; - resched = 1; + if (task->state != TASK_STATE_DRAINING) { + task->state = TASK_STATE_IDLE; + resched = 1; + } else { + cont = 1; + } goto exit; } -- 2.25.1

2 months

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Fwd: [Bug 220457] Using -march=native on linux 6.16.1 causes: can't find jump dest instruction error.

by SMF Linux

https://bugzilla.kernel.org/show_bug.cgi?id=220457 Refined my work around to: KBUILD_CFLAGS += -march=native -mno-tbm KBUILD_RUSTFLAGS += -Ctarget-cpu=native Ctarget-feature=-tbm

2 months

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[PATCH] irqchip/sifive-plic: avoid interrupt ID 0 handling during suspend/resume

by Lucas Zampieri

To: linux-kernel(a)vger.kernel.org Cc: Paul Walmsley <paul.walmsley(a)sifive.com> Cc: Samuel Holland <samuel.holland(a)sifive.com> Cc: stable(a)vger.kernel.org Cc: linux-riscv(a)lists.infradead.org Cc: Thomas Gleixner <tglx(a)linutronix.de> According to the PLIC specification[1], global interrupt sources are assigned small unsigned integer identifiers beginning at the value 1. An interrupt ID of 0 is reserved to mean "no interrupt". The current plic_irq_resume() and plic_irq_suspend() functions incorrectly starts the loop from index 0, which could access the reserved interrupt ID 0 register space. This fix changes the loop to start from index 1, skipping the reserved interrupt ID 0 as per the PLIC specification. This prevents potential undefined behavior when accessing the reserved register space during suspend/resume cycles. Fixes: e80f0b6a2cf3 ("irqchip/irq-sifive-plic: Add syscore callbacks for hibernation") Co-developed-by: Jia Wang <wangjia(a)ultrarisc.com> Signed-off-by: Jia Wang <wangjia(a)ultrarisc.com> Signed-off-by: Lucas Zampieri <lzampier(a)redhat.com> [1] https://github.com/riscv/riscv-plic-spec/releases/tag/1.0.0 --- drivers/irqchip/irq-sifive-plic.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/irqchip/irq-sifive-plic.c b/drivers/irqchip/irq-sifive-plic.c index bf69a4802b71..1c2b4d2575ac 100644 --- a/drivers/irqchip/irq-sifive-plic.c +++ b/drivers/irqchip/irq-sifive-plic.c @@ -252,7 +252,7 @@ static int plic_irq_suspend(void) priv = per_cpu_ptr(&plic_handlers, smp_processor_id())->priv; - for (i = 0; i < priv->nr_irqs; i++) { + for (i = 1; i < priv->nr_irqs; i++) { __assign_bit(i, priv->prio_save, readl(priv->regs + PRIORITY_BASE + i * PRIORITY_PER_ID)); } @@ -283,7 +283,7 @@ static void plic_irq_resume(void) priv = per_cpu_ptr(&plic_handlers, smp_processor_id())->priv; - for (i = 0; i < priv->nr_irqs; i++) { + for (i = 1; i < priv->nr_irqs; i++) { index = BIT_WORD(i); writel((priv->prio_save[index] & BIT_MASK(i)) ? 1 : 0, priv->regs + PRIORITY_BASE + i * PRIORITY_PER_ID); -- 2.51.0

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New September Order. 02318 Sunday, September 21, 2025 at 06:25:09 AM

by Info - Albinayah 086

Hi Stable, Please provide a quote for your products: Include: 1.Pricing (per unit) 2.Delivery cost & timeline 3.Quote expiry date Deadline: September Thanks! Kamal Prasad Albinayah Trading

2 months

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by Alan Ye

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2 months

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by Elpat Finance Loan

Good Day, Elpat Financial Services is here to support the SME market across South Africa with fast, affordable funding— no credit checks required. We offer: 1. Business Loans – Up to R10 million, approved within 72 hours. 2. Personal Loans – Up to R5 million, approved within 48 hours. 3. Home, Farmers & Construction Loans – Up to R20 million, approved within 3–5 working days. As a trusted financial partner, we have already helped many businesses—whether you’re self-employed, a contractor, retailer, restaurant owner, engineer, cleaning service, child-care provider, or web designer. Your time is valuable, and our goal is to provide flexible finance that works with your cash flow needs. That’s why we cut out the red tape: no branches, no queues, no endless paperwork. Just quick, reliable access to the funding you need to grow. How to Apply: * Prepare the required documents * Please submit your application via email to [ mailto:applycashloan@elaptfinanceloan.co.za | applycashloan @ elaptfinanceloan.co.za ] . For a quicker response, you may also send it directly to [ mailto:helpdeskelephantloan@outlook.com | helpdeskelephantloan @ outlook.com ] TO APPLY KINDLY SEND 1. A clear copy of your valid ID 2. Pay Slip OR 3 Months Bank Statement 3. Cell No. / Office No................... 4. Whatsapp No (Optional).................. 5. Email............... 6. Loan Amount........................ ...... NOTE : (minimum loan amount R50,000.00 to R50,000,000.00 ) only. 7. Loan Repayment Duration............... 8. Loan Type.......................... .... 5% Repayment Schedule Table for Guide to Application Loan Amount Duration (Year) Repayment Period Loan Amount Duration (Year) Repayment Period Loan Amount Duration (Year) Repayment Period R 50,000 2 R2, 193.57 R 50,000 3 R1, 498.54 R 50,000 5 R 943.56 R 100,000 3 R2, 997.09 R 100,000 4 R2, 302.93 R 100,000 6 R1,610.49 R 150,000 3 R 4,495.63 R150,000 5 R2, 830.69 R150,000 7 R2,120.09 R 300,000 4 R 6,908.79 R 300,000 6 R 4,831.48 R 300,000 8 R3,797.98 R 400,000 5 R 7,548.49 R 400,000 7 R 5,653.56 R 400,000 9 R4,606.91 R 600,000 6 R9, 662.96 R 600,000 8 R 7,595.95 R 600,000 10 R6,363.93 R 800,000 7 R11,307.13 R 800,000 9 R 9,213.82 R 800,000 11 R7,891.59 R1,000,000 8 R12,659.92 R1,000,000 10 R10,606.55 R1,000,000 12 R9,248.90 Please Note: * Loan amounts range from R50,000.00 to R20,000,000.00 . Kindly indicate the amount you are applying for in your application. * Credit decision within 24–48 hours. * Funds available in your account within 24–48 hours of approval. * Fast and hassle-free process. * Free monthly statements sent directly to your email. * Customer Protection Insurance included for your peace of mind. * Immediate access to funds once transferred. For quick assistance, you can reach us via WhatsApp: +27 (0)63 348 1211 Or call us directly on +27 (0)635725001 for more information. Thanks for Choosing Direct Elpat Financial Services Elpat Financial Services Loan adviser Louw Anita (Mrs) [ mailto:applycashloan@elaptfinanceloan.co.za | applycashloan @ elaptfinanceloan.co.za ] Tel: +27 (0) 61015588 Elpat Financial Services - 43 Long street, cape town city centre cape town 800 south Africa, Cape Town. And Our Direct Connection to Financial Services. Registered Credit Provider. Elpat Financial Services SA (Pty) Ltd (Registration No 2015/085124/07 / NCRCP/119387 is an authorised Financial Services Provider. © Copyright 2025

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[PATCH v2] mm/damon/sysfs: do not ignore callback's return value in damon_sysfs_damon_call()

by Akinobu Mita

The callback return value is ignored in damon_sysfs_damon_call(), which means that it is not possible to detect invalid user input when writing commands such as 'commit' to /sys/kernel/mm/damon/admin/kdamonds/<K>/state. Fix it. Signed-off-by: Akinobu Mita <akinobu.mita(a)gmail.com> Fixes: f64539dcdb87 ("mm/damon/sysfs: use damon_call() for update_schemes_stats") Cc: <stable(a)vger.kernel.org> # v6.14.x Reviewed-by: SeongJae Park <sj(a)kernel.org> --- mm/damon/sysfs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c index fe4e73d0ebbb..3ffe3a77b5db 100644 --- a/mm/damon/sysfs.c +++ b/mm/damon/sysfs.c @@ -1627,12 +1627,14 @@ static int damon_sysfs_damon_call(int (*fn)(void *data), struct damon_sysfs_kdamond *kdamond) { struct damon_call_control call_control = {}; + int err; if (!kdamond->damon_ctx) return -EINVAL; call_control.fn = fn; call_control.data = kdamond; - return damon_call(kdamond->damon_ctx, &call_control); + err = damon_call(kdamond->damon_ctx, &call_control); + return err ? err : call_control.return_code; } struct damon_sysfs_schemes_walk_data { -- 2.43.0

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