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6.15.5 stable request, regression from 6.15.3..6.15.4

by Jens Axboe

Hi, Details in the patch attached, but an unrelated vfs change broke io_uring for anon inode reading/writing. Please queue this up asap for 6.15.5 so we don't have have any further 6.15-stable kernels with this regression. You can also just cherry pick it, picks cleanly. Sha is: 6f11adcc6f36ffd8f33dbdf5f5ce073368975bc3 Thanks, -- Jens Axboe

1 week, 5 days

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[PATCH v2] mtd: rawnand: renesas: Add missing check after DMA map

by Thomas Fourier

The DMA map functions can fail and should be tested for errors. Fixes: d8701fe890ec ("mtd: rawnand: renesas: Add new NAND controller driver") Cc: stable(a)vger.kernel.org Signed-off-by: Thomas Fourier <fourier.thomas(a)gmail.com> --- drivers/mtd/nand/raw/renesas-nand-controller.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/mtd/nand/raw/renesas-nand-controller.c b/drivers/mtd/nand/raw/renesas-nand-controller.c index 44f6603736d1..ac8c1b80d7be 100644 --- a/drivers/mtd/nand/raw/renesas-nand-controller.c +++ b/drivers/mtd/nand/raw/renesas-nand-controller.c @@ -426,6 +426,9 @@ static int rnandc_read_page_hw_ecc(struct nand_chip *chip, u8 *buf, /* Configure DMA */ dma_addr = dma_map_single(rnandc->dev, rnandc->buf, mtd->writesize, DMA_FROM_DEVICE); + if (dma_mapping_error(rnandc->dev, dma_addr)) + return -ENOMEM; + writel(dma_addr, rnandc->regs + DMA_ADDR_LOW_REG); writel(mtd->writesize, rnandc->regs + DMA_CNT_REG); writel(DMA_TLVL_MAX, rnandc->regs + DMA_TLVL_REG); @@ -606,6 +609,9 @@ static int rnandc_write_page_hw_ecc(struct nand_chip *chip, const u8 *buf, /* Configure DMA */ dma_addr = dma_map_single(rnandc->dev, (void *)rnandc->buf, mtd->writesize, DMA_TO_DEVICE); + if (dma_mapping_error(rnandc->dev, dma_addr)) + return -ENOMEM; + writel(dma_addr, rnandc->regs + DMA_ADDR_LOW_REG); writel(mtd->writesize, rnandc->regs + DMA_CNT_REG); writel(DMA_TLVL_MAX, rnandc->regs + DMA_TLVL_REG); -- 2.43.0

1 week, 5 days

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[PATCH] mtd: rawnand: renesas: Add missing check after DMA map

by Thomas Fourier

The DMA map functions can fail and should be tested for errors. Fixes: d8701fe890ec ("mtd: rawnand: renesas: Add new NAND controller driver") Cc: stable(a)vger.kernel.org Signed-off-by: Thomas Fourier <fourier.thomas(a)gmail.com> --- drivers/mtd/nand/raw/renesas-nand-controller.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/mtd/nand/raw/renesas-nand-controller.c b/drivers/mtd/nand/raw/renesas-nand-controller.c index 44f6603736d1..f4a775571733 100644 --- a/drivers/mtd/nand/raw/renesas-nand-controller.c +++ b/drivers/mtd/nand/raw/renesas-nand-controller.c @@ -426,6 +426,10 @@ static int rnandc_read_page_hw_ecc(struct nand_chip *chip, u8 *buf, /* Configure DMA */ dma_addr = dma_map_single(rnandc->dev, rnandc->buf, mtd->writesize, DMA_FROM_DEVICE); + if (dma_mapping_error(rnandc->dev, dma_addr)) { + dev_err(rnandc->dev, "DMA mapping failed.\n"); + return -ENOMEM; + } writel(dma_addr, rnandc->regs + DMA_ADDR_LOW_REG); writel(mtd->writesize, rnandc->regs + DMA_CNT_REG); writel(DMA_TLVL_MAX, rnandc->regs + DMA_TLVL_REG); @@ -606,6 +610,10 @@ static int rnandc_write_page_hw_ecc(struct nand_chip *chip, const u8 *buf, /* Configure DMA */ dma_addr = dma_map_single(rnandc->dev, (void *)rnandc->buf, mtd->writesize, DMA_TO_DEVICE); + if (dma_mapping_error(rnandc->dev, dma_addr)) { + dev_err(rnandc->dev, "DMA mapping failed.\n"); + return -ENOMEM; + } writel(dma_addr, rnandc->regs + DMA_ADDR_LOW_REG); writel(mtd->writesize, rnandc->regs + DMA_CNT_REG); writel(DMA_TLVL_MAX, rnandc->regs + DMA_TLVL_REG); -- 2.43.0

1 week, 5 days

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Re: Patch "drm/i915/gem: Allow EXEC_CAPTURE on recoverable contexts on DG1" has been added to the 6.1-stable tree

by Joonas Lahtinen

Hi Greg, Please do note that there is a revert for this patch that was part of the same pull request. That needs to be picked in too in case you are picking the original patch. I already got the automated mails from Sasha that both the original commit and revert were already picked into 6.1, 6.6 and 6.12 trees. Are now in a perpetual machinery induced loop where the original commit and revert will be picked in alternating fashion to the stable trees? [1] Regards, Joonas [1] Originally, I was under the assumption stable machinery would automatically skip over patches that have later been reverted, but that doesn't seem to be the case? Quoting gregkh(a)linuxfoundation.org (2025-06-30 14:39:44) > > This is a note to let you know that I've just added the patch titled > > drm/i915/gem: Allow EXEC_CAPTURE on recoverable contexts on DG1 > > to the 6.1-stable tree which can be found at: > http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… > > The filename of the patch is: > drm-i915-gem-allow-exec_capture-on-recoverable-contexts-on-dg1.patch > and it can be found in the queue-6.1 subdirectory. > > If you, or anyone else, feels it should not be added to the stable tree, > please let <stable(a)vger.kernel.org> know about it. > > > From 25eeba495b2fc16037647c1a51bcdf6fc157af5c Mon Sep 17 00:00:00 2001 > From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala(a)linux.intel.com> > Date: Mon, 12 May 2025 21:22:15 +0200 > Subject: drm/i915/gem: Allow EXEC_CAPTURE on recoverable contexts on DG1 > MIME-Version: 1.0 > Content-Type: text/plain; charset=UTF-8 > Content-Transfer-Encoding: 8bit > > From: Ville Syrjälä <ville.syrjala(a)linux.intel.com> > > commit 25eeba495b2fc16037647c1a51bcdf6fc157af5c upstream. > > The intel-media-driver is currently broken on DG1 because > it uses EXEC_CAPTURE with recovarable contexts. Relax the > check to allow that. > > I've also submitted a fix for the intel-media-driver: > https://github.com/intel/media-driver/pull/1920 > > Cc: stable(a)vger.kernel.org # v6.0+ > Cc: Matthew Auld <matthew.auld(a)intel.com> > Cc: Thomas Hellström <thomas.hellstrom(a)linux.intel.com> > Testcase: igt/gem_exec_capture/capture-invisible > Fixes: 71b1669ea9bd ("drm/i915/uapi: tweak error capture on recoverable contexts") > Reviewed-by: Andi Shyti <andi.shyti(a)linux.intel.com> > Signed-off-by: Ville Syrjälä <ville.syrjala(a)linux.intel.com> > Signed-off-by: Andi Shyti <andi.shyti(a)kernel.org> > Link: https://lore.kernel.org/r/20250411144313.11660-2-ville.syrjala@linux.intel.… > (cherry picked from commit d6e020819612a4a06207af858e0978be4d3e3140) > Signed-off-by: Joonas Lahtinen <joonas.lahtinen(a)linux.intel.com> > Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> > --- > drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c > +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c > @@ -2001,7 +2001,7 @@ static int eb_capture_stage(struct i915_ > continue; > > if (i915_gem_context_is_recoverable(eb->gem_context) && > - (IS_DGFX(eb->i915) || GRAPHICS_VER_FULL(eb->i915) > IP_VER(12, 0))) > + GRAPHICS_VER_FULL(eb->i915) > IP_VER(12, 10)) > return -EINVAL; > > for_each_batch_create_order(eb, j) { > > > Patches currently in stable-queue which might be from ville.syrjala(a)linux.intel.com are > > queue-6.1/drm-dp-change-aux-dpcd-probe-address-from-dpcd_rev-to-lane0_1_status.patch > queue-6.1/revert-drm-i915-gem-allow-exec_capture-on-recoverabl.patch > queue-6.1/drm-i915-gem-allow-exec_capture-on-recoverable-contexts-on-dg1.patch > queue-6.1/drm-i915-gem-allow-exec_capture-on-recoverable-conte.patch

1 week, 5 days

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FAILED: patch "[PATCH] arm64: Restrict pagetable teardown to avoid false warning" 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 650768c512faba8070bf4cfbb28c95eb5cd203f3 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062303-unsworn-penpal-7142@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 650768c512faba8070bf4cfbb28c95eb5cd203f3 Mon Sep 17 00:00:00 2001 From: Dev Jain <dev.jain(a)arm.com> Date: Tue, 27 May 2025 13:56:33 +0530 Subject: [PATCH] arm64: Restrict pagetable teardown to avoid false warning Commit 9c006972c3fe ("arm64: mmu: drop pXd_present() checks from pXd_free_pYd_table()") removes the pxd_present() checks because the caller checks pxd_present(). But, in case of vmap_try_huge_pud(), the caller only checks pud_present(); pud_free_pmd_page() recurses on each pmd through pmd_free_pte_page(), wherein the pmd may be none. Thus it is possible to hit a warning in the latter, since pmd_none => !pmd_table(). Thus, add a pmd_present() check in pud_free_pmd_page(). This problem was found by code inspection. Fixes: 9c006972c3fe ("arm64: mmu: drop pXd_present() checks from pXd_free_pYd_table()") Cc: stable(a)vger.kernel.org Reported-by: Ryan Roberts <ryan.roberts(a)arm.com> Acked-by: David Hildenbrand <david(a)redhat.com> Signed-off-by: Dev Jain <dev.jain(a)arm.com> Reviewed-by: Catalin Marinas <catalin.marinas(a)arm.com> Reviewed-by: Anshuman Khandual <anshuman.khandual(a)arm.com> Reviewed-by: Ryan Roberts <ryan.roberts(a)arm.com> Link: https://lore.kernel.org/r/20250527082633.61073-1-dev.jain@arm.com Signed-off-by: Will Deacon <will(a)kernel.org> diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 8fcf59ba39db..00ab1d648db6 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -1305,7 +1305,8 @@ int pud_free_pmd_page(pud_t *pudp, unsigned long addr) next = addr; end = addr + PUD_SIZE; do { - pmd_free_pte_page(pmdp, next); + if (pmd_present(pmdp_get(pmdp))) + pmd_free_pte_page(pmdp, next); } while (pmdp++, next += PMD_SIZE, next != end); pud_clear(pudp);

1 week, 5 days

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FAILED: patch "[PATCH] arm64: Restrict pagetable teardown to avoid false warning" 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 650768c512faba8070bf4cfbb28c95eb5cd203f3 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062303-spoon-unfrosted-5eee@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 650768c512faba8070bf4cfbb28c95eb5cd203f3 Mon Sep 17 00:00:00 2001 From: Dev Jain <dev.jain(a)arm.com> Date: Tue, 27 May 2025 13:56:33 +0530 Subject: [PATCH] arm64: Restrict pagetable teardown to avoid false warning Commit 9c006972c3fe ("arm64: mmu: drop pXd_present() checks from pXd_free_pYd_table()") removes the pxd_present() checks because the caller checks pxd_present(). But, in case of vmap_try_huge_pud(), the caller only checks pud_present(); pud_free_pmd_page() recurses on each pmd through pmd_free_pte_page(), wherein the pmd may be none. Thus it is possible to hit a warning in the latter, since pmd_none => !pmd_table(). Thus, add a pmd_present() check in pud_free_pmd_page(). This problem was found by code inspection. Fixes: 9c006972c3fe ("arm64: mmu: drop pXd_present() checks from pXd_free_pYd_table()") Cc: stable(a)vger.kernel.org Reported-by: Ryan Roberts <ryan.roberts(a)arm.com> Acked-by: David Hildenbrand <david(a)redhat.com> Signed-off-by: Dev Jain <dev.jain(a)arm.com> Reviewed-by: Catalin Marinas <catalin.marinas(a)arm.com> Reviewed-by: Anshuman Khandual <anshuman.khandual(a)arm.com> Reviewed-by: Ryan Roberts <ryan.roberts(a)arm.com> Link: https://lore.kernel.org/r/20250527082633.61073-1-dev.jain@arm.com Signed-off-by: Will Deacon <will(a)kernel.org> diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 8fcf59ba39db..00ab1d648db6 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -1305,7 +1305,8 @@ int pud_free_pmd_page(pud_t *pudp, unsigned long addr) next = addr; end = addr + PUD_SIZE; do { - pmd_free_pte_page(pmdp, next); + if (pmd_present(pmdp_get(pmdp))) + pmd_free_pte_page(pmdp, next); } while (pmdp++, next += PMD_SIZE, next != end); pud_clear(pudp);

1 week, 5 days

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FAILED: patch "[PATCH] arm64: Restrict pagetable teardown to avoid false warning" 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 650768c512faba8070bf4cfbb28c95eb5cd203f3 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062304-oyster-overhang-6204@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 650768c512faba8070bf4cfbb28c95eb5cd203f3 Mon Sep 17 00:00:00 2001 From: Dev Jain <dev.jain(a)arm.com> Date: Tue, 27 May 2025 13:56:33 +0530 Subject: [PATCH] arm64: Restrict pagetable teardown to avoid false warning Commit 9c006972c3fe ("arm64: mmu: drop pXd_present() checks from pXd_free_pYd_table()") removes the pxd_present() checks because the caller checks pxd_present(). But, in case of vmap_try_huge_pud(), the caller only checks pud_present(); pud_free_pmd_page() recurses on each pmd through pmd_free_pte_page(), wherein the pmd may be none. Thus it is possible to hit a warning in the latter, since pmd_none => !pmd_table(). Thus, add a pmd_present() check in pud_free_pmd_page(). This problem was found by code inspection. Fixes: 9c006972c3fe ("arm64: mmu: drop pXd_present() checks from pXd_free_pYd_table()") Cc: stable(a)vger.kernel.org Reported-by: Ryan Roberts <ryan.roberts(a)arm.com> Acked-by: David Hildenbrand <david(a)redhat.com> Signed-off-by: Dev Jain <dev.jain(a)arm.com> Reviewed-by: Catalin Marinas <catalin.marinas(a)arm.com> Reviewed-by: Anshuman Khandual <anshuman.khandual(a)arm.com> Reviewed-by: Ryan Roberts <ryan.roberts(a)arm.com> Link: https://lore.kernel.org/r/20250527082633.61073-1-dev.jain@arm.com Signed-off-by: Will Deacon <will(a)kernel.org> diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 8fcf59ba39db..00ab1d648db6 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -1305,7 +1305,8 @@ int pud_free_pmd_page(pud_t *pudp, unsigned long addr) next = addr; end = addr + PUD_SIZE; do { - pmd_free_pte_page(pmdp, next); + if (pmd_present(pmdp_get(pmdp))) + pmd_free_pte_page(pmdp, next); } while (pmdp++, next += PMD_SIZE, next != end); pud_clear(pudp);

1 week, 5 days

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FAILED: patch "[PATCH] arm64: Restrict pagetable teardown to avoid false warning" 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 650768c512faba8070bf4cfbb28c95eb5cd203f3 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062304-prune-getup-2943@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 650768c512faba8070bf4cfbb28c95eb5cd203f3 Mon Sep 17 00:00:00 2001 From: Dev Jain <dev.jain(a)arm.com> Date: Tue, 27 May 2025 13:56:33 +0530 Subject: [PATCH] arm64: Restrict pagetable teardown to avoid false warning Commit 9c006972c3fe ("arm64: mmu: drop pXd_present() checks from pXd_free_pYd_table()") removes the pxd_present() checks because the caller checks pxd_present(). But, in case of vmap_try_huge_pud(), the caller only checks pud_present(); pud_free_pmd_page() recurses on each pmd through pmd_free_pte_page(), wherein the pmd may be none. Thus it is possible to hit a warning in the latter, since pmd_none => !pmd_table(). Thus, add a pmd_present() check in pud_free_pmd_page(). This problem was found by code inspection. Fixes: 9c006972c3fe ("arm64: mmu: drop pXd_present() checks from pXd_free_pYd_table()") Cc: stable(a)vger.kernel.org Reported-by: Ryan Roberts <ryan.roberts(a)arm.com> Acked-by: David Hildenbrand <david(a)redhat.com> Signed-off-by: Dev Jain <dev.jain(a)arm.com> Reviewed-by: Catalin Marinas <catalin.marinas(a)arm.com> Reviewed-by: Anshuman Khandual <anshuman.khandual(a)arm.com> Reviewed-by: Ryan Roberts <ryan.roberts(a)arm.com> Link: https://lore.kernel.org/r/20250527082633.61073-1-dev.jain@arm.com Signed-off-by: Will Deacon <will(a)kernel.org> diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 8fcf59ba39db..00ab1d648db6 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -1305,7 +1305,8 @@ int pud_free_pmd_page(pud_t *pudp, unsigned long addr) next = addr; end = addr + PUD_SIZE; do { - pmd_free_pte_page(pmdp, next); + if (pmd_present(pmdp_get(pmdp))) + pmd_free_pte_page(pmdp, next); } while (pmdp++, next += PMD_SIZE, next != end); pud_clear(pudp);

1 week, 5 days

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[PATCH v3 4/4] mm/damon: fix divide by zero in damon_get_intervals_score()

by Honggyu Kim

The current implementation allows having zero size regions with no special reasons, but damon_get_intervals_score() gets crashed by divide by zero when the region size is zero. [ 29.403950] Oops: divide error: 0000 [#1] SMP NOPTI This patch fixes the bug, but does not disallow zero size regions to keep the backward compatibility since disallowing zero size regions might be a breaking change for some users. In addition, the same crash can happen when intervals_goal.access_bp is zero so this should be fixed in stable trees as well. Fixes: f04b0fedbe71 ("mm/damon/core: implement intervals auto-tuning") Signed-off-by: Honggyu Kim <honggyu.kim(a)sk.com> Cc: stable(a)vger.kernel.org --- mm/damon/core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/damon/core.c b/mm/damon/core.c index b217e0120e09..2a6b8d1c2c9e 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -1449,6 +1449,7 @@ static unsigned long damon_get_intervals_score(struct damon_ctx *c) } } target_access_events = max_access_events * goal_bp / 10000; + target_access_events = target_access_events ? : 1; return access_events * 10000 / target_access_events; } -- 2.34.1

1 week, 5 days

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[PATCH v3 3/4] samples/damon: fix damon sample mtier for start failure

by Honggyu Kim

The damon_sample_mtier_start() can fail so we must reset the "enable" parameter to "false" again for proper rollback. In such cases, setting Y to "enable" then N triggers the similar crash with mtier because damon sample start failed but the "enable" stays as Y. Fixes: 82a08bde3cf7 ("samples/damon: implement a DAMON module for memory tiering") Signed-off-by: Honggyu Kim <honggyu.kim(a)sk.com> Reviewed-by: SeongJae Park <sj(a)kernel.org> Cc: stable(a)vger.kernel.org --- samples/damon/mtier.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/samples/damon/mtier.c b/samples/damon/mtier.c index 36d2cd933f5a..c94254b77fc9 100644 --- a/samples/damon/mtier.c +++ b/samples/damon/mtier.c @@ -164,8 +164,12 @@ static int damon_sample_mtier_enable_store( if (enable == enabled) return 0; - if (enable) - return damon_sample_mtier_start(); + if (enable) { + err = damon_sample_mtier_start(); + if (err) + enable = false; + return err; + } damon_sample_mtier_stop(); return 0; } -- 2.34.1

1 week, 5 days

1
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