xavi/android_kernel_m2note/kernel/fork.c, branch o-8.1

clean up process flags

2019-05-02T19:45:12+00:00

* Move PF_WAKE_UP_IDLE to 0x00000002 to make room for PF_SUSPEND_TASK * Drop PF_SU in favor of a bit 'task_is_su' in the task_struct bitfield which has still lots of room without changing the struct size. Change-Id: I2af053ebcbb3c41b7407560008da8150a73c8c05 Signed-off-by: Corinna Vinschen Signed-off-by: Moyster

memcg: kill CONFIG_MM_OWNER

2019-05-02T15:32:37+00:00

CONFIG_MM_OWNER makes no sense. It is not user-selectable, it is only selected by CONFIG_MEMCG automatically. So we can kill this option in init/Kconfig and do s/CONFIG_MM_OWNER/CONFIG_MEMCG/ globally. Change-Id: I07980d9557cef16a102ed293bc4a8ad1f9302777 Signed-off-by: Oleg Nesterov Acked-by: Michal Hocko Acked-by: Johannes Weiner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Replace with globally

2018-11-29T17:33:35+00:00

This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*' sed -i -e "s!$PATT!#include !" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro Signed-off-by: Linus Torvalds Signed-off-by: Moyster

fork: make whole stack_canary random

2017-10-14T14:01:41+00:00

On machines with sizeof(unsigned long)==8, this ensures that the more significant 32 bits of stack_canary are random, too. stack_canary is defined as unsigned long, all the architectures with stack protector support already pick the stack_canary of init as a random unsigned long, and get_random_long() should be as fast as get_random_int(), so there seems to be no good reason against this. This should help if someone tries to guess a stack canary with brute force. (This change has been made in PaX already, with a different RNG.) Signed-off-by: Jann Horn Acked-by: Kees Cook

Revert "proc: smaps: Allow smaps access for CAP_SYS_RESOURCE"

2017-07-11T11:46:34+00:00

This reverts commit d590b5b6953304edb000de90335a3b4838b2482c. This fixes CVE-2017-0710. SELinux allows more fine grained control: We grant processes that need access to smaps CAP_SYS_PTRACE but prohibit them from using ptrace attach(). Bug: 34951864 Bug: 36468447 Change-Id: I081033cf8fd7058b41cb464200b544e24651372d Signed-off-by: Daniel Mentz

uksm: remove Mtk aksm & uksm (because its fugly)

2017-07-04T10:13:29+00:00

Revert "KSM: mediatek: implement Adaptive KSM" Revert "mm: uksm: fix maybe-uninitialized warning" Revert "UKSM: Add Governors for Higher CPU usage (HighCPU) for more merging, and low cpu usage (Battery) for less battery drain" Revert "uksm: use deferrable timer" Revert "mm: limit UKSM sleep time instead of failing" Revert "uksm: Fix warning" Revert "uksm: clean up and remove some (no)inlines" Revert "uksm: modify ema logic and tidy up" Revert "uksm: enhancements and cleanups" Revert "uksm: squashed fixups" Revert "UKSM: cast variable as const" Revert "UKSM: remove U64_MAX definition" Revert "add uksm 0.1.2.3 for v3.10 .ge.46.patch"

kernel: Only expose su when daemon is running

2017-05-21T17:16:22+00:00

It has been claimed that the PG implementation of 'su' has security vulnerabilities even when disabled. Unfortunately, the people that find these vulnerabilities often like to keep them private so they can profit from exploits while leaving users exposed to malicious hackers. In order to reduce the attack surface for vulnerabilites, it is therefore necessary to make 'su' completely inaccessible when it is not in use (except by the root and system users). Change-Id: I79716c72f74d0b7af34ec3a8054896c6559a181d

drivers:lmk: Fix double delete issue

2017-04-17T09:51:36+00:00

someone may change a process's oom_score_adj by proc fs, even though the process has exited. In that case, the task was deleted from the rb tree already, and the redundant deleting would trigger rb_erase panic finally. In this patch, we make sure to clear the node after deteting and check its empty status before rb_erase. Change-Id: I26098ca3350f111e94567f9e65ec3dce413197aa Signed-off-by: Hong-Mei Li Reviewed-on: http://gerrit.mot.com/727760 SME-Granted: SME Approvals Granted SLTApproved: Slta Waiver Tested-by: Jira Key Reviewed-by: Sheng-Zhe Zhao Submit-Approved: Jira Key

Get rid of __cpuinit

2017-04-11T09:00:11+00:00

This commit is the result of find . -name '*.c' | xargs sed -i 's/ __cpuinit / /g' find . -name '*.c' | xargs sed -i 's/ __cpuexit / /g' find . -name '*.c' | xargs sed -i 's/ __cpuinitdata / /g' find . -name '*.c' | xargs sed -i 's/ __cpuinit$//g' find ./arch/ -name '*.h' | xargs sed -i 's/ __cpuinit//g' find . -name '*.c' | xargs sed -i 's/^__cpuinit //g' find . -name '*.c' | xargs sed -i 's/^__cpuinitdata //g' find . -name '*.c' | xargs sed -i 's/\*__cpuinit /\*/g' find . -name '*.c' | xargs sed -i 's/ __cpuinitconst / /g' find . -name '*.h' | xargs sed -i 's/ __cpuinit / /g' find . -name '*.h' | xargs sed -i 's/ __cpuinitdata / /g' git add . git reset include/linux/init.h git checkout -- include/linux/init.h based off : https://github.com/jollaman999/jolla-kernel_bullhead/commit/bc15db84a622eed7d61d3ece579b577154d0ec29

kernel: support task's adj rbtree

2017-04-11T09:00:03+00:00

Add (or del) a task to (or from) task's adj rbtree when a task is created or exit. Change-Id: Ic63e03355a1fed8c500097bad223c59c742a2346 Signed-off-by: Hong-Mei Li Signed-off-by: Yi-wei Zhao Reviewed-on: http://gerrit.mot.com/701207 SLTApproved: Slta Waiver Tested-by: Jira Key Submit-Approved: Jira Key