December 2023 - Patch2pr - mailweb.openeuler.org

[PATCH OLK-6.6 1/1] random: Added config for random boot optimization
by Cheng Yu 28 Dec '23

28 Dec '23

From: GUO Zihua <guozihua(a)huawei.com> hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I8K30G -------------------------------- Add a config isolation for random bootup initialization optimization. Signed-off-by: GUO Zihua <guozihua(a)huawei.com> --- arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/char/random.c | 4 ++++ init/Kconfig | 11 +++++++++++ 4 files changed, 17 insertions(+) diff --git a/arch/arm64/configs/openeuler_defconfig b/arch/arm64/configs/openeuler_defconfig index 9d2f717c1f7c..e853e2fe5d24 100644 --- a/arch/arm64/configs/openeuler_defconfig +++ b/arch/arm64/configs/openeuler_defconfig @@ -7830,6 +7830,7 @@ CONFIG_LOCK_DEBUGGING_SUPPORT=y # CONFIG_DEBUG_IRQFLAGS is not set CONFIG_STACKTRACE=y +CONFIG_RANDOM_BOOT_OPTIMIZATION=y # CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set # CONFIG_DEBUG_KOBJECT is not set diff --git a/arch/x86/configs/openeuler_defconfig b/arch/x86/configs/openeuler_defconfig index b40100e16683..60b6e994b4f1 100644 --- a/arch/x86/configs/openeuler_defconfig +++ b/arch/x86/configs/openeuler_defconfig @@ -9012,6 +9012,7 @@ CONFIG_LOCK_DEBUGGING_SUPPORT=y # CONFIG_NMI_CHECK_CPU is not set # CONFIG_DEBUG_IRQFLAGS is not set CONFIG_STACKTRACE=y +CONFIG_RANDOM_BOOT_OPTIMIZATION=y # CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set # CONFIG_DEBUG_KOBJECT is not set diff --git a/drivers/char/random.c b/drivers/char/random.c index b9ae54c243a9..2f31586d4188 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -1100,8 +1100,12 @@ void add_interrupt_randomness(int irq) if (new_count & MIX_INFLIGHT) return; +#ifdef CONFIG_RANDOM_BOOT_OPTIMIZATION if (new_count < 1024 && !time_is_before_jiffies(fast_pool->last + HZ) && crng_ready()) +#else + if (new_count < 1024 && !time_is_before_jiffies(fast_pool->last + HZ)) +#endif return; fast_pool->count |= MIX_INFLIGHT; diff --git a/init/Kconfig b/init/Kconfig index 6d35728b94b2..c8cd6af80337 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1984,3 +1984,14 @@ config ARCH_HAS_SYNC_CORE_BEFORE_USERMODE # <asm/syscall_wrapper.h>. config ARCH_HAS_SYSCALL_WRAPPER def_bool n + +config RANDOM_BOOT_OPTIMIZATION + bool "Random initialization optimization during bootup" + default n + help + Enable optimization on random bootup initialization. It is tested + to provide an optimization of up to 60%. + + It works by disabling batching of interrupt randomness events + during boot time, allowing interrupt related entropy to flow in + at a higher rate. -- 2.25.1

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[PATCH OLK-6.6 0/1] Add config isolation for random
by Fu Yong 28 Dec '23

28 Dec '23

From: Zheng Zengkai <zhengzengkai(a)huawei.com> This patch adds config isolating random bootup initialization optimization as it is required for all home-developed patches. v2: Fixed commit message. GUO Zihua (1): random: Added config for random boot optimization arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/char/random.c | 4 ++++ init/Kconfig | 11 +++++++++++ 4 files changed, 17 insertions(+) -- 2.25.1

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[PATCH OLK-6.6 0/1] Add config isolation for random
by Fu Yong 28 Dec '23

28 Dec '23

From: Zheng Zengkai <zhengzengkai(a)huawei.com> This patch adds config isolating random bootup initialization optimization as it is required for all home-developed patches. v2: Fixed commit message. GUO Zihua (1): random: Added config for random boot optimization arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/char/random.c | 4 ++++ init/Kconfig | 11 +++++++++++ 4 files changed, 17 insertions(+) -- 2.25.1

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[PATCH OLK-6.6 0/1] Add config isolation for random
by Fu Yong 28 Dec '23

28 Dec '23

From: Zheng Zengkai <zhengzengkai(a)huawei.com> This patch adds config isolating random bootup initialization optimization as it is required for all home-developed patches. v2: Fixed commit message. GUO Zihua (1): random: Added config for random boot optimization arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/char/random.c | 4 ++++ init/Kconfig | 11 +++++++++++ 4 files changed, 17 insertions(+) -- 2.25.1

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[PATCH OLK-6.6 0/1] Add config isolation for random
by Fu Yong 28 Dec '23

28 Dec '23

From: Zheng Zengkai <zhengzengkai(a)huawei.com> This patch adds config isolating random bootup initialization optimization as it is required for all home-developed patches. v2: Fixed commit message. GUO Zihua (1): random: Added config for random boot optimization arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/char/random.c | 4 ++++ init/Kconfig | 11 +++++++++++ 4 files changed, 17 insertions(+) -- 2.25.1

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[PATCH OLK-6.6 0/1] Support priority load balance for qos scheduler
by Song Zhang 20 Dec '23

20 Dec '23

Song Zhang (1): sched: Introduce priority load balance for qos scheduler arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + init/Kconfig | 9 +++ kernel/sched/core.c | 3 + kernel/sched/fair.c | 90 +++++++++++++++++++++++++- kernel/sched/sched.h | 3 + 6 files changed, 106 insertions(+), 1 deletion(-) -- 2.33.0

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[PATCH OLK-6.6 0/1] Support priority load balance for qos scheduler
by Song Zhang 19 Dec '23

19 Dec '23

Song Zhang (1): sched: Introduce priority load balance for qos scheduler arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + include/linux/sched/sysctl.h | 4 ++ init/Kconfig | 9 +++ kernel/sched/core.c | 3 + kernel/sched/fair.c | 90 +++++++++++++++++++++++++- kernel/sched/sched.h | 3 + 7 files changed, 110 insertions(+), 1 deletion(-) -- 2.33.0

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[PATCH OLK-6.6 0/1] Support priority load balance for qos scheduler
by Song Zhang 19 Dec '23

19 Dec '23

Song Zhang (1): sched: Introduce priority load balance for qos scheduler arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + include/linux/sched/sysctl.h | 4 ++ init/Kconfig | 9 +++ kernel/sched/core.c | 3 + kernel/sched/fair.c | 90 +++++++++++++++++++++++++- kernel/sched/sched.h | 3 + 7 files changed, 110 insertions(+), 1 deletion(-) -- 2.33.0

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[PATCH OLK-6.6 0/1] Support priority load balance for qos scheduler
by Song Zhang 19 Dec '23

19 Dec '23

Song Zhang (1): sched: Introduce priority load balance for qos scheduler arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + include/linux/sched/sysctl.h | 4 ++ init/Kconfig | 9 +++ kernel/sched/core.c | 3 + kernel/sched/fair.c | 90 +++++++++++++++++++++++++- kernel/sched/sched.h | 3 + 7 files changed, 110 insertions(+), 1 deletion(-) -- 2.33.0

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[PATCH OLK-6.6] fs: Convert to bdev_open_by_dev()
by testpatch＠openeuler.org 12 Dec '23

12 Dec '23

From: Jan Kara <jack(a)suse.cz> Convert mount code to use bdev_open_by_dev() and propagate the handle around to bdev_release(). Acked-by: Christoph Hellwig <hch(a)lst.de> Reviewed-by: Christian Brauner <brauner(a)kernel.org> Signed-off-by: Jan Kara <jack(a)suse.cz> Link: https://lore.kernel.org/r/20230927093442.25915-19-jack@suse.cz Signed-off-by: Christian Brauner <brauner(a)kernel.org> --- fs/cramfs/inode.c | 2 +- fs/romfs/super.c | 2 +- fs/super.c | 15 +++++++++------ include/linux/fs.h | 1 + 4 files changed, 12 insertions(+), 8 deletions(-) diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index 5ee7d7bbb361..2fbf97077ce9 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@ -495,7 +495,7 @@ static void cramfs_kill_sb(struct super_block *sb) sb->s_mtd = NULL; } else if (IS_ENABLED(CONFIG_CRAMFS_BLOCKDEV) && sb->s_bdev) { sync_blockdev(sb->s_bdev); - blkdev_put(sb->s_bdev, sb); + bdev_release(sb->s_bdev_handle); } kfree(sbi); } diff --git a/fs/romfs/super.c b/fs/romfs/super.c index 5c35f6c76037..b1bdfbc211c3 100644 --- a/fs/romfs/super.c +++ b/fs/romfs/super.c @@ -593,7 +593,7 @@ static void romfs_kill_sb(struct super_block *sb) #ifdef CONFIG_ROMFS_ON_BLOCK if (sb->s_bdev) { sync_blockdev(sb->s_bdev); - blkdev_put(sb->s_bdev, sb); + bdev_release(sb->s_bdev_handle); } #endif } diff --git a/fs/super.c b/fs/super.c index 2d762ce67f6e..26b96191e9b3 100644 --- a/fs/super.c +++ b/fs/super.c @@ -1479,14 +1479,16 @@ int setup_bdev_super(struct super_block *sb, int sb_flags, struct fs_context *fc) { blk_mode_t mode = sb_open_mode(sb_flags); + struct bdev_handle *bdev_handle; struct block_device *bdev; - bdev = blkdev_get_by_dev(sb->s_dev, mode, sb, &fs_holder_ops); - if (IS_ERR(bdev)) { + bdev_handle = bdev_open_by_dev(sb->s_dev, mode, sb, &fs_holder_ops); + if (IS_ERR(bdev_handle)) { if (fc) errorf(fc, "%s: Can't open blockdev", fc->source); - return PTR_ERR(bdev); + return PTR_ERR(bdev_handle); } + bdev = bdev_handle->bdev; /* * This really should be in blkdev_get_by_dev, but right now can't due @@ -1494,7 +1496,7 @@ int setup_bdev_super(struct super_block *sb, int sb_flags, * writable from userspace even for a read-only block device. */ if ((mode & BLK_OPEN_WRITE) && bdev_read_only(bdev)) { - blkdev_put(bdev, sb); + bdev_release(bdev_handle); return -EACCES; } @@ -1510,10 +1512,11 @@ int setup_bdev_super(struct super_block *sb, int sb_flags, mutex_unlock(&bdev->bd_fsfreeze_mutex); if (fc) warnf(fc, "%pg: Can't mount, blockdev is frozen", bdev); - blkdev_put(bdev, sb); + bdev_release(bdev_handle); return -EBUSY; } spin_lock(&sb_lock); + sb->s_bdev_handle = bdev_handle; sb->s_bdev = bdev; sb->s_bdi = bdi_get(bdev->bd_disk->bdi); if (bdev_stable_writes(bdev)) @@ -1646,7 +1649,7 @@ void kill_block_super(struct super_block *sb) generic_shutdown_super(sb); if (bdev) { sync_blockdev(bdev); - blkdev_put(bdev, sb); + bdev_release(sb->s_bdev_handle); } } diff --git a/include/linux/fs.h b/include/linux/fs.h index 4a40823c3c67..fb5accebdcdf 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1221,6 +1221,7 @@ struct super_block { struct hlist_bl_head s_roots; /* alternate root dentries for NFS */ struct list_head s_mounts; /* list of mounts; _not_ for fs use */ struct block_device *s_bdev; + struct bdev_handle *s_bdev_handle; struct backing_dev_info *s_bdi; struct mtd_info *s_mtd; struct hlist_node s_instances; -- 2.25.1

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