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[openeuler:openEuler-1.0-LTS 9458/23370] drivers/iommu/.tmp_amd_iommu_quirks.o: warning: objtool: missing symbol for section .text
by kernel test robot 27 Jul '24

27 Jul '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 365ea86d72567c1550e42ecf0e3f4521da9a5570 commit: fe2ee4839a7421367da12f5610e1b45c619fcbad [9458/23370] iommu/amd: Override wrong IVRS IOAPIC on Raven Ridge systems config: x86_64-buildonly-randconfig-005-20240727 (https://download.01.org/0day-ci/archive/20240727/202407271424.5G6KyQ0z-lkp@…) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240727/202407271424.5G6KyQ0z-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202407271424.5G6KyQ0z-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/iommu/.tmp_amd_iommu_quirks.o: warning: objtool: missing symbol for section .text -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH openEuler-1.0-LTS] kobject: Fix global-out-of-bounds in kobject_action_type()
by Xia Fukun 27 Jul '24

27 Jul '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9REGZ CVE: NA -------------------------------- The following c language code can trigger KASAN's global variable out-of-bounds access error in kobject_action_type(): int main() { int fd; char *filename = "/sys/block/ram12/uevent"; char str[86] = "offline"; int len = 86; fd = open(filename, O_WRONLY); if (fd == -1) { printf("open"); exit(1); } if (write(fd, str, len) == -1) { printf("write"); exit(1); } close(fd); return 0; } Function kobject_action_type() receives the input parameters buf and count, where count is the length of the string buf. In the use case we provided, count is 86, the count_first is 85. Buf points to a string with a length of 86, and its first seven characters are "offline". In line 87 of the code, kobject_actions[action] is the string "offline" with the length of 7,an out-of-boundary access will appear: kobject_actions[action][85]. Modify the judgment logic in line 87. If the length of the string kobject_actions[action] is greater than count_first(e.g. buf is "off", count is 3), continue the loop. Otherwise, the match is considered successful. This change means that our test case will be successfully parsed as an offline event and no out-of-bounds access error will occur. Fixes: f36776fafbaa ("kobject: support passing in variables for synthetic uevents") Signed-off-by: Xia Fukun <xiafukun(a)huawei.com> --- lib/kobject_uevent.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c index 26d21339bef27..b5fc7b9ce197a 100644 --- a/lib/kobject_uevent.c +++ b/lib/kobject_uevent.c @@ -84,7 +84,7 @@ static int kobject_action_type(const char *buf, size_t count, for (action = 0; action < ARRAY_SIZE(kobject_actions); action++) { if (strncmp(kobject_actions[action], buf, count_first) != 0) continue; - if (kobject_actions[action][count_first] != '\0') + if (strlen(kobject_actions[action]) > count_first) continue; if (args) *args = args_start; -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS 0/5] BMA: Fix iBMA bug and change
by Wang Hai 27 Jul '24

27 Jul '24

From: Wujiahai <wujiahai(a)huawei.com> 1. a low probability that iBMA cdev_veth driver causes softlockup problem 2. a low probability that iBMA veth driver causes soft interrupt loops 3. Change the iBMA driver version. 4. Resolved the problem that the DMA reset does not meet the expectation due to the mismatch between the register configuration and the communication transmission direction during DMA reset. Wujiahai (5): BMA/edma_drv: Fix DMA reset problem and change the version number. BMA/cdev_drv: Change the version number. BMA/veth_drv: Fix soft interrupt loops and change the version number BMA/kbox_drv: Change the version number. BMA/cdev_veth_drv: Fix softlockup problem .../net/ethernet/huawei/bma/cdev_drv/bma_cdev.c | 2 +- .../bma/cdev_veth_drv/virtual_cdev_eth_net.c | 14 ++++++++------ drivers/net/ethernet/huawei/bma/edma_drv/bma_pci.h | 2 +- .../net/ethernet/huawei/bma/edma_drv/edma_host.c | 4 ++-- .../ethernet/huawei/bma/kbox_drv/kbox_include.h | 2 +- drivers/net/ethernet/huawei/bma/veth_drv/veth_hb.c | 12 +++++++++++- drivers/net/ethernet/huawei/bma/veth_drv/veth_hb.h | 2 +- 7 files changed, 25 insertions(+), 13 deletions(-) -- 2.27.0

2 6

[PATCH OLK-6.6] media: i2c: et8ek8: Don't strip remove function when driver is builtin
by Wupeng Ma 26 Jul '24

26 Jul '24

From: Uwe Kleine-König <u.kleine-koenig(a)pengutronix.de> stable inclusion from stable-v6.6.33 commit c1a3803e5bb91c13e9ad582003e4288f67f06cd9 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA74DQ Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 545b215736c5c4b354e182d99c578a472ac9bfce ] Using __exit for the remove function results in the remove callback being discarded with CONFIG_VIDEO_ET8EK8=y. When such a device gets unbound (e.g. using sysfs or hotplug), the driver is just removed without the cleanup being performed. This results in resource leaks. Fix it by compiling in the remove callback unconditionally. This also fixes a W=1 modpost warning: WARNING: modpost: drivers/media/i2c/et8ek8/et8ek8: section mismatch in reference: et8ek8_i2c_driver+0x10 (section: .data) -> et8ek8_remove (section: .exit.text) Fixes: c5254e72b8ed ("[media] media: Driver for Toshiba et8ek8 5MP sensor") Signed-off-by: Uwe Kleine-König <u.kleine-koenig(a)pengutronix.de> Signed-off-by: Sakari Ailus <sakari.ailus(a)linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco(a)xs4all.nl> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ma Wupeng <mawupeng1(a)huawei.com> --- drivers/media/i2c/et8ek8/et8ek8_driver.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/i2c/et8ek8/et8ek8_driver.c b/drivers/media/i2c/et8ek8/et8ek8_driver.c index d6fc843f9368..0d6f0f8506f7 100644 --- a/drivers/media/i2c/et8ek8/et8ek8_driver.c +++ b/drivers/media/i2c/et8ek8/et8ek8_driver.c @@ -1460,7 +1460,7 @@ static int et8ek8_probe(struct i2c_client *client) return ret; } -static void __exit et8ek8_remove(struct i2c_client *client) +static void et8ek8_remove(struct i2c_client *client) { struct v4l2_subdev *subdev = i2c_get_clientdata(client); struct et8ek8_sensor *sensor = to_et8ek8_sensor(subdev); @@ -1502,7 +1502,7 @@ static struct i2c_driver et8ek8_i2c_driver = { .of_match_table = et8ek8_of_table, }, .probe = et8ek8_probe, - .remove = __exit_p(et8ek8_remove), + .remove = et8ek8_remove, .id_table = et8ek8_id_table, }; -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1] media: i2c: et8ek8: Don't strip remove function when driver is builtin
by Wupeng Ma 26 Jul '24

26 Jul '24

From: Uwe Kleine-König <u.kleine-koenig(a)pengutronix.de> stable inclusion from stable-v6.6.33 commit c1a3803e5bb91c13e9ad582003e4288f67f06cd9 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S9P CVE: CVE-2024-38611 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 545b215736c5c4b354e182d99c578a472ac9bfce ] Using __exit for the remove function results in the remove callback being discarded with CONFIG_VIDEO_ET8EK8=y. When such a device gets unbound (e.g. using sysfs or hotplug), the driver is just removed without the cleanup being performed. This results in resource leaks. Fix it by compiling in the remove callback unconditionally. This also fixes a W=1 modpost warning: WARNING: modpost: drivers/media/i2c/et8ek8/et8ek8: section mismatch in reference: et8ek8_i2c_driver+0x10 (section: .data) -> et8ek8_remove (section: .exit.text) Fixes: c5254e72b8ed ("[media] media: Driver for Toshiba et8ek8 5MP sensor") Signed-off-by: Uwe Kleine-König <u.kleine-koenig(a)pengutronix.de> Signed-off-by: Sakari Ailus <sakari.ailus(a)linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco(a)xs4all.nl> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: drivers/media/i2c/et8ek8/et8ek8_driver.c [Ma Wupeng: return val of et8ek8_remove lead to conflict] Signed-off-by: Ma Wupeng <mawupeng1(a)huawei.com> --- drivers/media/i2c/et8ek8/et8ek8_driver.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/i2c/et8ek8/et8ek8_driver.c b/drivers/media/i2c/et8ek8/et8ek8_driver.c index 256acf73d5ea..4d7c4eac5e20 100644 --- a/drivers/media/i2c/et8ek8/et8ek8_driver.c +++ b/drivers/media/i2c/et8ek8/et8ek8_driver.c @@ -1460,7 +1460,7 @@ static int et8ek8_probe(struct i2c_client *client) return ret; } -static int __exit et8ek8_remove(struct i2c_client *client) +static int et8ek8_remove(struct i2c_client *client) { struct v4l2_subdev *subdev = i2c_get_clientdata(client); struct et8ek8_sensor *sensor = to_et8ek8_sensor(subdev); @@ -1504,7 +1504,7 @@ static struct i2c_driver et8ek8_i2c_driver = { .of_match_table = et8ek8_of_table, }, .probe_new = et8ek8_probe, - .remove = __exit_p(et8ek8_remove), + .remove = et8ek8_remove, .id_table = et8ek8_id_table, }; -- 2.25.1

2 1

[PATCH OLK-5.10] media: i2c: et8ek8: Don't strip remove function when driver is builtin
by Wupeng Ma 26 Jul '24

26 Jul '24

From: Uwe Kleine-König <u.kleine-koenig(a)pengutronix.de> stable inclusion from stable-v6.6.33 commit c1a3803e5bb91c13e9ad582003e4288f67f06cd9 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S9P CVE: CVE-2024-38611 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 545b215736c5c4b354e182d99c578a472ac9bfce ] Using __exit for the remove function results in the remove callback being discarded with CONFIG_VIDEO_ET8EK8=y. When such a device gets unbound (e.g. using sysfs or hotplug), the driver is just removed without the cleanup being performed. This results in resource leaks. Fix it by compiling in the remove callback unconditionally. This also fixes a W=1 modpost warning: WARNING: modpost: drivers/media/i2c/et8ek8/et8ek8: section mismatch in reference: et8ek8_i2c_driver+0x10 (section: .data) -> et8ek8_remove (section: .exit.text) Fixes: c5254e72b8ed ("[media] media: Driver for Toshiba et8ek8 5MP sensor") Signed-off-by: Uwe Kleine-König <u.kleine-koenig(a)pengutronix.de> Signed-off-by: Sakari Ailus <sakari.ailus(a)linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco(a)xs4all.nl> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: drivers/media/i2c/et8ek8/et8ek8_driver.c [Ma Wupeng: return val of et8ek8_remove lead to conflict] Signed-off-by: Ma Wupeng <mawupeng1(a)huawei.com> --- drivers/media/i2c/et8ek8/et8ek8_driver.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/i2c/et8ek8/et8ek8_driver.c b/drivers/media/i2c/et8ek8/et8ek8_driver.c index 256acf73d5ea..4d7c4eac5e20 100644 --- a/drivers/media/i2c/et8ek8/et8ek8_driver.c +++ b/drivers/media/i2c/et8ek8/et8ek8_driver.c @@ -1460,7 +1460,7 @@ static int et8ek8_probe(struct i2c_client *client) return ret; } -static int __exit et8ek8_remove(struct i2c_client *client) +static int et8ek8_remove(struct i2c_client *client) { struct v4l2_subdev *subdev = i2c_get_clientdata(client); struct et8ek8_sensor *sensor = to_et8ek8_sensor(subdev); @@ -1504,7 +1504,7 @@ static struct i2c_driver et8ek8_i2c_driver = { .of_match_table = et8ek8_of_table, }, .probe_new = et8ek8_probe, - .remove = __exit_p(et8ek8_remove), + .remove = et8ek8_remove, .id_table = et8ek8_id_table, }; -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS] thermal: Fix NULL pointer dereferences in of_thermal_ functions
by Liu Mingrui 26 Jul '24

26 Jul '24

From: Subbaraman Narayanamurthy <quic_subbaram(a)quicinc.com> stable inclusion from stable-v5.10.81 commit 6a315471cb6a07f651e1d3adc8962730f4fcccac category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9FNF5 CVE: CVE-2021-47202 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 96cfe05051fd8543cdedd6807ec59a0e6c409195 upstream. of_parse_thermal_zones() parses the thermal-zones node and registers a thermal_zone device for each subnode. However, if a thermal zone is consuming a thermal sensor and that thermal sensor device hasn't probed yet, an attempt to set trip_point_*_temp for that thermal zone device can cause a NULL pointer dereference. Fix it. console:/sys/class/thermal/thermal_zone87 # echo 120000 > trip_point_0_temp ... Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020 ... Call trace: of_thermal_set_trip_temp+0x40/0xc4 trip_point_temp_store+0xc0/0x1dc dev_attr_store+0x38/0x88 sysfs_kf_write+0x64/0xc0 kernfs_fop_write_iter+0x108/0x1d0 vfs_write+0x2f4/0x368 ksys_write+0x7c/0xec __arm64_sys_write+0x20/0x30 el0_svc_common.llvm.7279915941325364641+0xbc/0x1bc do_el0_svc+0x28/0xa0 el0_svc+0x14/0x24 el0_sync_handler+0x88/0xec el0_sync+0x1c0/0x200 While at it, fix the possible NULL pointer dereference in other functions as well: of_thermal_get_temp(), of_thermal_set_emul_temp(), of_thermal_get_trend(). Suggested-by: David Collins <quic_collinsd(a)quicinc.com> Signed-off-by: Subbaraman Narayanamurthy <quic_subbaram(a)quicinc.com> Acked-by: Daniel Lezcano <daniel.lezcano(a)linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Conflicts: drivers/thermal/of-thermal.c Signed-off-by: Liu Mingrui <liumingrui(a)huawei.com> --- drivers/thermal/of-thermal.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c index 4f2816559205..856dce4d72e2 100644 --- a/drivers/thermal/of-thermal.c +++ b/drivers/thermal/of-thermal.c @@ -77,7 +77,7 @@ static int of_thermal_get_temp(struct thermal_zone_device *tz, { struct __thermal_zone *data = tz->devdata; - if (!data->ops->get_temp) + if (!data->ops || !data->ops->get_temp) return -EINVAL; return data->ops->get_temp(data->sensor_data, temp); @@ -174,6 +174,10 @@ static int of_thermal_set_emul_temp(struct thermal_zone_device *tz, { struct __thermal_zone *data = tz->devdata; + if (!data->ops || !data->ops->set_emul_temp) + return -EINVAL; + + return data->ops->set_emul_temp(data->sensor_data, temp); } @@ -182,7 +186,7 @@ static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip, { struct __thermal_zone *data = tz->devdata; - if (!data->ops->get_trend) + if (!data->ops || !data->ops->get_trend) return -EINVAL; return data->ops->get_trend(data->sensor_data, trip, trend); @@ -310,7 +314,7 @@ static int of_thermal_set_trip_temp(struct thermal_zone_device *tz, int trip, if (trip >= data->ntrips || trip < 0) return -EDOM; - if (data->ops->set_trip_temp) { + if (data->ops && data->ops->set_trip_temp) { int ret; ret = data->ops->set_trip_temp(data->sensor_data, trip, temp); -- 2.25.1

2 1

[PATCH OLK-6.6] block: propagate partition scanning errors to the BLKRRPART ioctl
by Yu Kuai 26 Jul '24

26 Jul '24

From: Christoph Hellwig <hch(a)lst.de> mainline inclusion from mainline-v6.9-rc5 commit 752863bddacab6b5c5164b1df8c8b2e3a175ee28 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IAFS7F CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Commit 4601b4b130de ("block: reopen the device in blkdev_reread_part") lost the propagation of I/O errors from the low-level read of the partition table to the user space caller of the BLKRRPART. Apparently some user space relies on, so restore the propagation. This isn't exactly pretty as other block device open calls explicitly do not are about these errors, so add a new BLK_OPEN_STRICT_SCAN to opt into the error propagation. Fixes: 4601b4b130de ("block: reopen the device in blkdev_reread_part") Reported-by: Saranya Muruganandam <saranyamohan(a)google.com> Signed-off-by: Christoph Hellwig <hch(a)lst.de> Reviewed-by: Chaitanya Kulkarni <kch(a)nvidia.com> Reviewed-by: Shin'ichiro Kawasaki <shinichiro.kawasaki(a)wdc.com> Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki(a)wdc.com> Link: https://lore.kernel.org/r/20240417144743.2277601-1-hch@lst.de Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Yu Kuai <yukuai3(a)huawei.com> --- block/bdev.c | 29 +++++++++++++++++++---------- block/ioctl.c | 3 ++- include/linux/blkdev.h | 2 ++ 3 files changed, 23 insertions(+), 11 deletions(-) diff --git a/block/bdev.c b/block/bdev.c index 07e8e3686aea..3a4357e5aac6 100644 --- a/block/bdev.c +++ b/block/bdev.c @@ -648,6 +648,14 @@ static void blkdev_flush_mapping(struct block_device *bdev) bdev_write_inode(bdev); } +static void blkdev_put_whole(struct block_device *bdev) +{ + if (atomic_dec_and_test(&bdev->bd_openers)) + blkdev_flush_mapping(bdev); + if (bdev->bd_disk->fops->release) + bdev->bd_disk->fops->release(bdev->bd_disk); +} + static int blkdev_get_whole(struct block_device *bdev, blk_mode_t mode) { struct gendisk *disk = bdev->bd_disk; @@ -666,20 +674,21 @@ static int blkdev_get_whole(struct block_device *bdev, blk_mode_t mode) if (!atomic_read(&bdev->bd_openers)) set_init_blocksize(bdev); - if (test_bit(GD_NEED_PART_SCAN, &disk->state)) - bdev_disk_changed(disk, false); atomic_inc(&bdev->bd_openers); + if (test_bit(GD_NEED_PART_SCAN, &disk->state)) { + /* + * Only return scanning errors if we are called from contexts + * that explicitly want them, e.g. the BLKRRPART ioctl. + */ + ret = bdev_disk_changed(disk, false); + if (ret && (mode & BLK_OPEN_STRICT_SCAN)) { + blkdev_put_whole(bdev); + return ret; + } + } return 0; } -static void blkdev_put_whole(struct block_device *bdev) -{ - if (atomic_dec_and_test(&bdev->bd_openers)) - blkdev_flush_mapping(bdev); - if (bdev->bd_disk->fops->release) - bdev->bd_disk->fops->release(bdev->bd_disk); -} - static int blkdev_get_part(struct block_device *part, blk_mode_t mode) { struct gendisk *disk = part->bd_disk; diff --git a/block/ioctl.c b/block/ioctl.c index b7104fd80a46..808910231dc8 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -556,7 +556,8 @@ static int blkdev_common_ioctl(struct block_device *bdev, blk_mode_t mode, return -EACCES; if (bdev_is_partition(bdev)) return -EINVAL; - return disk_scan_partitions(bdev->bd_disk, mode); + return disk_scan_partitions(bdev->bd_disk, + mode | BLK_OPEN_STRICT_SCAN); case BLKTRACESTART: case BLKTRACESTOP: case BLKTRACETEARDOWN: diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index b114f4a32753..a41707b09d8d 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -129,6 +129,8 @@ typedef unsigned int __bitwise blk_mode_t; #define BLK_OPEN_WRITE_IOCTL ((__force blk_mode_t)(1 << 4)) /* open is exclusive wrt all other BLK_OPEN_WRITE opens to the device */ #define BLK_OPEN_RESTRICT_WRITES ((__force blk_mode_t)(1 << 5)) +/* return partition scanning errors */ +#define BLK_OPEN_STRICT_SCAN ((__force blk_mode_t)(1 << 6)) struct gendisk { /* -- 2.39.2

2 1

[PATCH OLK-6.6 0/3] improve dump_page() robustness
by Jinjiang Tu 26 Jul '24

26 Jul '24

Baolin Wang (1): fs: improve dump_mapping() robustness Matthew Wilcox (Oracle) (2): mm: add __dump_folio() mm: improve dumping of mapcount and page_type fs/inode.c | 3 +- include/linux/mm.h | 7 +++ include/linux/mmzone.h | 3 + mm/debug.c | 129 +++++++++++++++++++++++------------------ 4 files changed, 84 insertions(+), 58 deletions(-) -- 2.25.1

2 4

[PATCH OLK-5.10] sched: Add cfs_preferred_nid_init hook
by Hui Tang 26 Jul '24

26 Jul '24

hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I9GZAQ CVE: NA -------------------------------- Add cfs_preferred_nid_init hook for scheduler, allow user to init same numa_preferred_nid for multi threads of the process. Signed-off-by: Hui Tang <tanghui20(a)huawei.com> --- include/linux/sched_hook_defs.h | 1 + kernel/fork.c | 15 +++++++++++++++ 2 files changed, 16 insertions(+) diff --git a/include/linux/sched_hook_defs.h b/include/linux/sched_hook_defs.h index 0a871f728c85..de6451930d8a 100644 --- a/include/linux/sched_hook_defs.h +++ b/include/linux/sched_hook_defs.h @@ -14,3 +14,4 @@ BPF_SCHED_HOOK(int, -1, cfs_can_migrate_task, struct task_struct *p, struct sched_migrate_node *migrate_node) BPF_SCHED_HOOK(void, (void) 0, cfs_change_preferred_node, struct sched_preferred_node_ctx *ctx) +BPF_SCHED_HOOK(int, -1, cfs_preferred_nid_init, struct task_struct *tsk) diff --git a/kernel/fork.c b/kernel/fork.c index 12db99751381..dcf1f9c655d8 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -97,6 +97,7 @@ #include <linux/scs.h> #include <linux/io_uring.h> #include <linux/sched/mm.h> +#include <linux/bpf_sched.h> #ifdef CONFIG_QOS_SCHED_SMART_GRID #include <linux/sched/grid_qos.h> #endif @@ -2320,6 +2321,20 @@ static __latent_entropy struct task_struct *copy_process( p->tgid = p->pid; } +#if defined (CONFIG_SCHED_TASK_RELATIONSHIP) && defined(CONFIG_BPF_SCHED) + if (bpf_sched_enabled() && task_relationship_supported(p)) { + retval = bpf_sched_cfs_preferred_nid_init(p); + if (clone_flags & CLONE_THREAD) { + if (retval > 0) + p->numa_preferred_nid = + p->group_leader->numa_preferred_nid; + } else { + if (retval > 0 && retval <= nr_node_ids) + p->numa_preferred_nid = retval - 1; + } + } +#endif + p->nr_dirtied = 0; p->nr_dirtied_pause = 128 >> (PAGE_SHIFT - 10); p->dirty_paused_when = 0; -- 2.34.1

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2024

2023

2022

2021

2020

2019

Kernel