8a901b005112d29984d533911a4a0dfbbafff15f
444 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Saravana Kannan
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0ef21e1c1a |
ANDROID: vendor_hooks: Reduce pointless modversions CRC churn
When vendor hooks are added to a file that previously didn't have any vendor hooks, we end up indirectly including linux/tracepoint.h. This causes some data types that used to be opaque (forward declared) to the code to become visible to the code. Modversions correctly catches this change in visibility, but we don't really care about the data types made visible when linux/tracepoint.h is included. So, hide this from modversions in the central vendor_hooks.h file instead of having to fix this on a case by case basis. This change itself will cause a one time CRC breakage/churn because it's fixing the existing vendor hook headers, but should reduce unnecessary CRC churns in the future. To avoid future pointless CRC churn, vendor hook header files that include vendor_hooks.h should not include linux/tracepoint.h directly. Bug: 227513263 Bug: 226140073 Signed-off-by: Saravana Kannan <saravanak@google.com> Change-Id: Ia88e6af11dd94fe475c464eb30a6e5e1e24c938b |
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Charan Teja Reddy
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d831f07038 |
ANDROID: vmscan: Support multiple kswapd threads per node
Page replacement is handled in the Linux Kernel in one of two ways:
1) Asynchronously via kswapd
2) Synchronously, via direct reclaim
At page allocation time the allocating task is immediately given a page
from the zone free list allowing it to go right back to work doing
whatever it was doing; Probably directly or indirectly executing business
logic.
Just prior to satisfying the allocation, free pages is checked to see if
it has reached the zone low watermark and if so, kswapd is awakened.
Kswapd will start scanning pages looking for inactive pages to evict to
make room for new page allocations. The work of kswapd allows tasks to
continue allocating memory from their respective zone free list without
incurring any delay.
When the demand for free pages exceeds the rate that kswapd tasks can
supply them, page allocation works differently. Once the allocating task
finds that the number of free pages is at or below the zone min watermark,
the task will no longer pull pages from the free list. Instead, the task
will run the same CPU-bound routines as kswapd to satisfy its own
allocation by scanning and evicting pages. This is called a direct reclaim.
The time spent performing a direct reclaim can be substantial, often
taking tens to hundreds of milliseconds for small order0 allocations to
half a second or more for order9 huge-page allocations. In fact, kswapd is
not actually required on a linux system. It exists for the sole purpose of
optimizing performance by preventing direct reclaims.
When memory shortfall is sufficient to trigger direct reclaims, they can
occur in any task that is running on the system. A single aggressive
memory allocating task can set the stage for collateral damage to occur in
small tasks that rarely allocate additional memory. Consider the impact of
injecting an additional 100ms of latency when nscd allocates memory to
facilitate caching of a DNS query.
The presence of direct reclaims 10 years ago was a fairly reliable
indicator that too much was being asked of a Linux system. Kswapd was
likely wasting time scanning pages that were ineligible for eviction.
Adding RAM or reducing the working set size would usually make the problem
go away. Since then hardware has evolved to bring a new struggle for
kswapd. Storage speeds have increased by orders of magnitude while CPU
clock speeds stayed the same or even slowed down in exchange for more
cores per package. This presents a throughput problem for a single
threaded kswapd that will get worse with each generation of new hardware.
Test Details
NOTE: The tests below were run with shadow entries disabled. See the
associated patch and cover letter for details
The tests below were designed with the assumption that a kswapd bottleneck
is best demonstrated using filesystem reads. This way, the inactive list
will be full of clean pages, simplifying the analysis and allowing kswapd
to achieve the highest possible steal rate. Maximum steal rates for kswapd
are likely to be the same or lower for any other mix of page types on the
system.
Tests were run on a 2U Oracle X7-2L with 52 Intel Xeon Skylake 2GHz cores,
756GB of RAM and 8 x 3.6 TB NVMe Solid State Disk drives. Each drive has
an XFS file system mounted separately as /d0 through /d7. SSD drives
require multiple concurrent streams to show their potential, so I created
eleven 250GB zero-filled files on each drive so that I could test with
parallel reads.
The test script runs in multiple stages. At each stage, the number of dd
tasks run concurrently is increased by 2. I did not include all of the
test output for brevity.
During each stage dd tasks are launched to read from each drive in a round
robin fashion until the specified number of tasks for the stage has been
reached. Then iostat, vmstat and top are started in the background with 10
second intervals. After five minutes, all of the dd tasks are killed and
the iostat, vmstat and top output is parsed in order to report the
following:
CPU consumption
- sy - aggregate kernel mode CPU consumption from vmstat output. The value
doesn't tend to fluctuate much so I just grab the highest value.
Each sample is averaged over 10 seconds
- dd_cpu - for all of the dd tasks averaged across the top samples since
there is a lot of variation.
Throughput
- in Kbytes
- Command is iostat -x -d 10 -g total
This first test performs reads using O_DIRECT in order to show the maximum
throughput that can be obtained using these drives. It also demonstrates
how rapidly throughput scales as the number of dd tasks are increased.
The dd command for this test looks like this:
Command Used: dd iflag=direct if=/d${i}/$n of=/dev/null bs=4M
Test #1: Direct IO
dd sy dd_cpu throughput
6 0 2.33 14726026.40
10 1 2.95 19954974.80
16 1 2.63 24419689.30
22 1 2.63 25430303.20
28 1 2.91 26026513.20
34 1 2.53 26178618.00
40 1 2.18 26239229.20
46 1 1.91 26250550.40
52 1 1.69 26251845.60
58 1 1.54 26253205.60
64 1 1.43 26253780.80
70 1 1.31 26254154.80
76 1 1.21 26253660.80
82 1 1.12 26254214.80
88 1 1.07 26253770.00
90 1 1.04 26252406.40
Throughput was close to peak with only 22 dd tasks. Very little system CPU
was consumed as expected as the drives DMA directly into the user address
space when using direct IO.
In this next test, the iflag=direct option is removed and we only run the
test until the pgscan_kswapd from /proc/vmstat starts to increment. At
that point metrics are parsed and reported and the pagecache contents are
dropped prior to the next test. Lather, rinse, repeat.
Test #2: standard file system IO, no page replacement
dd sy dd_cpu throughput
6 2 28.78 5134316.40
10 3 31.40 8051218.40
16 5 34.73 11438106.80
22 7 33.65 14140596.40
28 8 31.24 16393455.20
34 10 29.88 18219463.60
40 11 28.33 19644159.60
46 11 25.05 20802497.60
52 13 26.92 22092370.00
58 13 23.29 22884881.20
64 14 23.12 23452248.80
70 15 22.40 23916468.00
76 16 22.06 24328737.20
82 17 20.97 24718693.20
88 16 18.57 25149404.40
90 16 18.31 25245565.60
Each read has to pause after the buffer in kernel space is populated while
those pages are added to the pagecache and copied into the user address
space. For this reason, more parallel streams are required to achieve peak
throughput. The copy operation consumes substantially more CPU than direct
IO as expected.
The next test measures throughput after kswapd starts running. This is the
same test only we wait for kswapd to wake up before we start collecting
metrics. The script actually keeps track of a few things that were not
mentioned earlier. It tracks direct reclaims and page scans by watching
the metrics in /proc/vmstat. CPU consumption for kswapd is tracked the
same way it is tracked for dd.
Since the test is 100% reads, you can assume that the page steal rate for
kswapd and direct reclaims is almost identical to the scan rate.
Test #3: 1 kswapd thread per node
dd sy dd_cpu kswapd0 kswapd1 throughput dr pgscan_kswapd pgscan_direct
10 4 26.07 28.56 27.03 7355924.40 0 459316976 0
16 7 34.94 69.33 69.66 10867895.20 0 872661643 0
22 10 36.03 93.99 99.33 13130613.60 489 1037654473 11268334
28 10 30.34 95.90 98.60 14601509.60 671 1182591373 15429142
34 14 34.77 97.50 99.23 16468012.00 10850 1069005644 249839515
40 17 36.32 91.49 97.11 17335987.60 18903 975417728 434467710
46 19 38.40 90.54 91.61 17705394.40 25369 855737040 582427973
52 22 40.88 83.97 83.70 17607680.40 31250 709532935 724282458
58 25 40.89 82.19 80.14 17976905.60 35060 657796473 804117540
64 28 41.77 73.49 75.20 18001910.00 39073 561813658 895289337
70 33 45.51 63.78 64.39 17061897.20 44523 379465571 1020726436
76 36 46.95 57.96 60.32 16964459.60 47717 291299464 1093172384
82 39 47.16 55.43 56.16 16949956.00 49479 247071062 1134163008
88 42 47.41 53.75 47.62 16930911.20 51521 195449924 1180442208
90 43 47.18 51.40 50.59 16864428.00 51618 190758156 1183203901
In the previous test where kswapd was not involved, the system-wide kernel
mode CPU consumption with 90 dd tasks was 16%. In this test CPU consumption
with 90 tasks is at 43%. With 52 cores, and two kswapd tasks (one per NUMA
node), kswapd can only be responsible for a little over 4% of the increase.
The rest is likely caused by 51,618 direct reclaims that scanned 1.2
billion pages over the five minute time period of the test.
Same test, more kswapd tasks:
Test #4: 4 kswapd threads per node
dd sy dd_cpu kswapd0 kswapd1 throughput dr pgscan_kswapd pgscan_direct
10 5 27.09 16.65 14.17 7842605.60 0 459105291 0
16 10 37.12 26.02 24.85 11352920.40 15 920527796 358515
22 11 36.94 37.13 35.82 13771869.60 0 1132169011 0
28 13 35.23 48.43 46.86 16089746.00 0 1312902070 0
34 15 33.37 53.02 55.69 18314856.40 0 1476169080 0
40 19 35.90 69.60 64.41 19836126.80 0 1629999149 0
46 22 36.82 88.55 57.20 20740216.40 0 1708478106 0
52 24 34.38 93.76 68.34 21758352.00 0 1794055559 0
58 24 30.51 79.20 82.33 22735594.00 0 1872794397 0
64 26 30.21 97.12 76.73 23302203.60 176 1916593721 4206821
70 33 32.92 92.91 92.87 23776588.00 3575 1817685086 85574159
76 37 31.62 91.20 89.83 24308196.80 4752 1812262569 113981763
82 29 25.53 93.23 92.33 24802791.20 306 2032093122 7350704
88 43 37.12 76.18 77.01 25145694.40 20310 1253204719 487048202
90 42 38.56 73.90 74.57 22516787.60 22774 1193637495 545463615
By increasing the number of kswapd threads, throughput increased by ~50%
while kernel mode CPU utilization decreased or stayed the same, likely due
to a decrease in the number of parallel tasks at any given time doing page
replacement.
Signed-off-by: Buddy Lumpkin <buddy.lumpkin@oracle.com>
Bug: 201263306
Link: https://lore.kernel.org/lkml/1522661062-39745-1-git-send-email-buddy.lumpkin@oracle.com
[charante@codeaurora.org]: Changes made to select number of kswapds through uapi
Change-Id: I8425cab7f40cbeaf65af0ea118c1a9ac7da0930e
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>
[quic_vjitta@quicinc.com]: Changes made to move multiple kswapd threads logic to vendor hooks
Signed-off-by: Vijayanand Jitta <quic_vjitta@quicinc.com>
(cherry picked from commit
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weidong guan
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5168caa32a |
ANDROID: Add vendor hook for tk_based_time_sync
android_rvh_tk_based_time_sync: to get vendor-specific time sync func Bug: 223950152 Test: build pass Signed-off-by: weidong guan <weidong.guan@unisoc.com> Change-Id: I4c540e077668bff548c55d4afba3a7bd6725497e |
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Jeson Gao
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97a290b0e5 |
ANDROID: thermal: Add vendor hook to check power range
For SoC's skin temperature, we have to use more stringent temperature control to make IPA can monitor and mitigate temperature control earlier and faster, so add it to meet platform thermal requirement. Bug: 211564753 Signed-off-by: Jeson Gao <jeson.gao@unisoc.com> Signed-off-by: Di Shen <di.shen@unisoc.com> Change-Id: Iaef87287eef93d6fdbc3c58c93f70c1525e38296 (cherry picked from commit 6709f523251f77dc1e9ea643668c630db1f7db80) |
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Xuewen Yan
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c6fb9f6636 |
ANDROID: Add vendor hook to the effective_cpu_util
android_rvh_effective_cpu_util: To perform vendor-specific cpu util, it is used in EAS/schedutil/thermal. The effective_cpu_util would be called when thermal calc the dynamic power, it's non-atomic context, so set the hook be restricted. Bug: 226686099 Test: build pass Signed-off-by: Xuewen Yan <xuewen.yan@unisoc.com> Change-Id: I6fd77f44ca4328f5ef37d96989aa2e08d65e29bb |
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Liujie Xie
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d5aece2586 |
ANDROID: vendor_hooks: Add hooks for frequency optimization
These hooks will do the following works:
a) Record the number of times when target_freq being clamped
b) Record the number of times when target_freq is greater than policy->cur
c) Make corresponding optimization strategies in different hooks
d) change the value of target_freq for some scenarios
Bug: 205906618
Bug: 206896672
Change-Id: I8eba66fd0c6d36393ca39045cf228b659834e0ae
Signed-off-by: Liujie Xie <xieliujie@oppo.com>
Signed-off-by: vincent.wang <vincent.wang@unisoc.com>
(cherry picked from commit
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JianMin Liu
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46dfaf84ab |
ANDROID: rwsem: Add vendor hook to the rw-semaphore
Add the hook to apply vendor's performance tune for owner of rwsem. Add the hook for the waiter list of rwsem to allow vendor perform waiting queue enhancement ANDROID_VENDOR_DATA added to rw_semaphore Bug: 222402411 Signed-off-by: JianMin Liu <jian-min.liu@mediatek.com> Signed-off-by: Jino Hsu <jino.hsu@mediatek.com> Change-Id: I007a5e26f3db2adaeaf4e5ccea414ce7abfa83b8 |
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Jeson Gao
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78c7e3132d |
ANDROID: thermal: Add hook to enable/disable thermal power throttle
By default, thermal power throttle is always enable, but sometimes it need to be disabled for a period of time, so add it to meet platform thermal requirement. Bug: 209386157 Signed-off-by: Jeson Gao <jeson.gao@unisoc.com> Change-Id: If9c53a9669eec8e2821d837cfa3c660a9cfbf934 (cherry picked from commit 64999249d5fecc79805fd799bdf71bc5b554efc1) |
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Elliot Berman
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a7e175e112 |
ANDROID: rproc: Add vendor hook when setting recovery mode
Add vendor hook when setting recovery mode to notify coprocessor when mode is changed. Bug: 205534894 Signed-off-by: Elliot Berman <quic_eberman@quicinc.com> Change-Id: Ie41170deb0426a7bcfeed8a51cc4e8e1a427592a Signed-off-by: Gokul krishna Krishnakumar <quic_gokukris@quicinc.com> |
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Jeson Gao
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11f1be4453 |
ANDROID: thermal: Add vendor hooks for thermal
Need to get the request frequency and target frequency use it to do frequency check and modify it according to the platform thermal requirements. Bug: 208166320 Signed-off-by: Jeson Gao <jeson.gao@unisoc.com> Change-Id: I776b43c8f559b8a072abd8d3abcb3528348b2c5d (cherry picked from commit fc827b344f76709dc7f242c7db32e1828f510fdd) |
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Xuewen Yan
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74710cbec0 |
ANDROID: Add vendor hook to the deadline scheduler
android_rvh_select_task_rq_dl:
To perform vendor-specific DL task placement.
Bug: 207585485
Test: build pass
Signed-off-by: Xuewen Yan <xuewen.yan@unisoc.com>
Change-Id: Ibe147276b52a1be877802a2e53e87ba3eb8c9161
(cherry picked from commit 478f3ee1d3e5be03ecd3603643abfc1186468881)
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Ard Biesheuvel
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b6180f8b81 |
ANDROID: crypto: lib/aes - add vendor hooks for AES library routines
Add vendor hooks that will allow the FIPS140 kernel module to override the implementations of the AES library routines. The FIPS 140 versions are identical to the normal ones, but their code and rodata will have been integrity checked at module load time. Bug: 153614920 Bug: 188620248 Change-Id: I5711fc42eced903565fd3c8d41ca7cdd82641148 Signed-off-by: Ard Biesheuvel <ardb@google.com> Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Ard Biesheuvel
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e9a7155221 |
ANDROID: crypto: lib/sha256 - add vendor hook for sha256() routine
Add a vendor hook that will allow the FIPS140 kernel module to override the implementation of the sha256() library routine. The FIPS 140 version is identical to the normal one, but its code and rodata will have been integrity checked at module load time. Bug: 153614920 Bug: 188620248 Change-Id: I8ccc4f0cc8206af39fa922134b438dacac2a614a Signed-off-by: Ard Biesheuvel <ardb@google.com> Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Sangmoon Kim
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102255d1e4 |
ANDROID: arm64: add vendor hooks for unusal abort cases
Add hooks to gather data of unsual aborts and summarize it with other information. Bug: 222638752 Signed-off-by: Sangmoon Kim <sangmoon.kim@samsung.com> Change-Id: I74eb36b8551ed9a5e6dc87507939a7f4d81c9c18 |
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Sangmoon Kim
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61d7b6c741 |
ANDROID: arm64: add vendor hooks for kernel fault cases
Add hooks to gather data of kernel fault and summarize it with other information. Bug: 222638752 Signed-off-by: Sangmoon Kim <sangmoon.kim@samsung.com> Change-Id: I7d6a66837f2e896a413bd8d878f26928669d96e6 |
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Sangmoon Kim
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2232e3fc85 |
ANDROID: power: add vendor hooks for try_to_freeze fail
Add hooks to gather data of unfrozen tasks and summarize it with other information. Bug: 222638752 Signed-off-by: Sangmoon Kim <sangmoon.kim@samsung.com> Change-Id: I61da3d253bd9959c6f06e09c9a35c4b242cedafe |
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Sangmoon Kim
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5cc613a916 |
ANDROID: softlockup: add vendor hook for a softlockup task
Add hook to gather data of softlockup and summarize it with other information. Bug: 222638752 Signed-off-by: Sangmoon Kim <sangmoon.kim@samsung.com> Change-Id: I5263bbd573c3fa4b4c981ac26c943721ce09506d |
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Sangmoon Kim
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ba7e9d1a77 |
ANDROID: bug: add vendor hook for bug trap
Add hook to gather data of bug trap and summarize it with other information. Bug: 222638752 Signed-off-by: Sangmoon Kim <sangmoon.kim@samsung.com> Change-Id: I1f347c20629786f9bf0b9c50c7f96b50b4360504 |
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Ben Dai
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307ad9fb59 |
ANDROID: printk: add vendor hook to record more information about caller
With these hooks, printk can provide more information, such as the processor ID. Bug: 223302138 Signed-off-by: Ben Dai <ben.dai@unisoc.com> Change-Id: Iac60ffd49640d8badf5c5dd446c211d37bbbc6a6 |
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Namkyu Kim
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f79e49085d |
ANDROID: Add a vendor hook that allow a module to modify the wake flag
android_vh_do_wake_up_sync:
To modify the mode value of __wake_up_sync_key
android_vh_set_wake_flags:
To modify the wake flag from a module
Bug: 181743516
Signed-off-by: Namkyu Kim <namkyu78.kim@samsung.com>
Change-Id: I972e2469c3f139373d21f1e8c85974763388a693
(cherry picked from commit
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Rick Yiu
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97d6c580df |
ANDROID: sched: Add trace for __setscheduler_uclamp
To know per-task uclamp request. Bug: 191973176 Signed-off-by: Rick Yiu <rickyiu@google.com> Change-Id: Ibd40391f2228db5daa410198339237879e67a078 Signed-off-by: Will McVicker <willmcvicker@google.com> |
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Rick Yiu
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265615cfd3 |
ANDROID: sched: Add vendor hook for util_est_update
Vendor may have its own estimated utilization. Bug: 170508405 Signed-off-by: Rick Yiu <rickyiu@google.com> Change-Id: I6055907de75ace4586c3ad854d40f42e3bf40147 Signed-off-by: Will McVicker <willmcvicker@google.com> |
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Rick Yiu
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abf44714df |
ANDROID: sched: Add vendor hook for uclamp_eff_get
Vendor may have their own behavior for determing uclamp value. Also uclamp_eff_get() is used in uclamp_rq_inc_id() when task is enqueued, and it is contained in uclamp_eff_value(), there is no much benefit to hook uclamp_eff_value(), so remove the hook in uclamp_eff_value(). Bug: 170507972 Bug: 180859906 Signed-off-by: Rick Yiu <rickyiu@google.com> Change-Id: Ibf7c043188a77c40baf5b4040b198a4197236089 Signed-off-by: Will McVicker <willmcvicker@google.com> |
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Rick Yiu
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87475cbbe1 |
ANDROID: sched: Add vendor hook for cpu_overutilized
Currently, cpu_overutilized uses the threshold 80% of cpu capacity, Add
vendor hook so that vendor could define other values.
Bug: 176722431
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: Ic10bd8ebb40f7321cfa10e33ac020e3347ca6550
(cherry picked from commit b199c6e8795791e008cfff6e214676857cd0651c)
Signed-off-by: J. Avila <elavila@google.com>
(cherry picked from commit
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Georgi Djakov
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2ab4227174 |
ANDROID: qcom: iommu: Use restricted vendor hook for dma ops
Use rvh instead of vh for the iommu_setup_dma_ops to prevent sleeping while atomic bugs as mutexes are used to serialize access to iova regions. Bug: 216657571 Change-Id: If90d0714576ed6ca4b014b1447a1518f05a7ed0b Signed-off-by: Georgi Djakov <quic_c_gdjako@quicinc.com> |
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Huang Yiwei
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88c67dcda4 |
ANDROID: hung_task: Add vendor hook for hung task detect
Add vendor hook for hung task detect, so we can decide which threads need to check, avoiding false alarms. Bug: 188684133 Change-Id: I5d7dfeb071cbfda8121134c38a458202aaa3a8c6 Signed-off-by: Huang Yiwei <hyiwei@codeaurora.org> Signed-off-by: Vamsi Krishna Lanka <quic_vamslank@quicinc.com> |
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Greg Kroah-Hartman
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a8b5dc3032 |
Merge 5.15.17 into android13-5.15
Changes in 5.15.17
KVM: x86/mmu: Fix write-protection of PTs mapped by the TDP MMU
KVM: VMX: switch blocked_vcpu_on_cpu_lock to raw spinlock
HID: Ignore battery for Elan touchscreen on HP Envy X360 15t-dr100
HID: uhid: Fix worker destroying device without any protection
HID: wacom: Reset expected and received contact counts at the same time
HID: wacom: Ignore the confidence flag when a touch is removed
HID: wacom: Avoid using stale array indicies to read contact count
ALSA: core: Fix SSID quirk lookup for subvendor=0
f2fs: fix to do sanity check on inode type during garbage collection
f2fs: fix to do sanity check in is_alive()
f2fs: avoid EINVAL by SBI_NEED_FSCK when pinning a file
nfc: llcp: fix NULL error pointer dereference on sendmsg() after failed bind()
mtd: rawnand: gpmi: Add ERR007117 protection for nfc_apply_timings
mtd: rawnand: gpmi: Remove explicit default gpmi clock setting for i.MX6
mtd: Fixed breaking list in __mtd_del_partition.
mtd: rawnand: davinci: Don't calculate ECC when reading page
mtd: rawnand: davinci: Avoid duplicated page read
mtd: rawnand: davinci: Rewrite function description
mtd: rawnand: Export nand_read_page_hwecc_oob_first()
mtd: rawnand: ingenic: JZ4740 needs 'oob_first' read page function
riscv: Get rid of MAXPHYSMEM configs
RISC-V: Use common riscv_cpuid_to_hartid_mask() for both SMP=y and SMP=n
riscv: try to allocate crashkern region from 32bit addressible memory
riscv: Don't use va_pa_offset on kdump
riscv: use hart id instead of cpu id on machine_kexec
riscv: mm: fix wrong phys_ram_base value for RV64
x86/gpu: Reserve stolen memory for first integrated Intel GPU
tools/nolibc: x86-64: Fix startup code bug
crypto: x86/aesni - don't require alignment of data
tools/nolibc: i386: fix initial stack alignment
tools/nolibc: fix incorrect truncation of exit code
rtc: cmos: take rtc_lock while reading from CMOS
net: phy: marvell: add Marvell specific PHY loopback
ksmbd: uninitialized variable in create_socket()
ksmbd: fix guest connection failure with nautilus
ksmbd: add support for smb2 max credit parameter
ksmbd: move credit charge deduction under processing request
ksmbd: limits exceeding the maximum allowable outstanding requests
ksmbd: add reserved room in ipc request/response
media: cec: fix a deadlock situation
media: ov8865: Disable only enabled regulators on error path
media: v4l2-ioctl.c: readbuffers depends on V4L2_CAP_READWRITE
media: flexcop-usb: fix control-message timeouts
media: mceusb: fix control-message timeouts
media: em28xx: fix control-message timeouts
media: cpia2: fix control-message timeouts
media: s2255: fix control-message timeouts
media: dib0700: fix undefined behavior in tuner shutdown
media: redrat3: fix control-message timeouts
media: pvrusb2: fix control-message timeouts
media: stk1160: fix control-message timeouts
media: cec-pin: fix interrupt en/disable handling
can: softing_cs: softingcs_probe(): fix memleak on registration failure
mei: hbm: fix client dma reply status
iio: adc: ti-adc081c: Partial revert of removal of ACPI IDs
iio: trigger: Fix a scheduling whilst atomic issue seen on tsc2046
lkdtm: Fix content of section containing lkdtm_rodata_do_nothing()
bus: mhi: pci_generic: Graceful shutdown on freeze
bus: mhi: core: Fix reading wake_capable channel configuration
bus: mhi: core: Fix race while handling SYS_ERR at power up
cxl/pmem: Fix reference counting for delayed work
arm64: errata: Fix exec handling in erratum
|
||
Todd Kjos
|
7a9ad4aceb |
binder: avoid potential data leakage when copying txn
[ Upstream commit 6d98eb95b450a75adb4516a1d33652dc78d2b20c ]
Transactions are copied from the sender to the target
first and objects like BINDER_TYPE_PTR and BINDER_TYPE_FDA
are then fixed up. This means there is a short period where
the sender's version of these objects are visible to the
target prior to the fixups.
Instead of copying all of the data first, copy data only
after any needed fixups have been applied.
Fixes:
|
||
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Todd Kjos
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f9848823d4 |
binder: fix handling of error during copy
[ Upstream commit fe6b1869243f23a485a106c214bcfdc7aa0ed593 ]
If a memory copy function fails to copy the whole buffer,
a positive integar with the remaining bytes is returned.
In binder_translate_fd_array() this can result in an fd being
skipped due to the failed copy, but the loop continues
processing fds since the early return condition expects a
negative integer on error.
Fix by returning "ret > 0 ? -EINVAL : ret" to handle this case.
Fixes:
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Prakash Gupta
|
4d7fc7aaec |
ANDROID: mm, oom: add vendor hook to prevent oom panic
In some cases we would like to bypass oom panic and give the system more time to cleanup memory. Add vendor hook to allow skipping the oom panic. Bug: 186875166 Change-Id: I64e74b2c013d6f18d74504777c6559d9ae07e008 Signed-off-by: Prakash Gupta <guptap@codeaurora.org> Signed-off-by: Sudarshan Rajagopalan <quic_sudaraja@quicinc.com> |
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Gokul krishna Krishnakumar
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24bfd162f9 |
ANDROID: rproc: Add vendor hook for recovery
Add vendor hook for rproc recovery to allow vendor enhancements. Bug: 215224270 Change-Id: If6f0846c141a4ad40748d552002f65b94d9c52d5 Signed-off-by: Siddharth Gupta <quic_sidgup@quicinc.com> Signed-off-by: Gokul krishna Krishnakumar <quic_gokukris@quicinc.com> |
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Sangmoon Kim
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b35a3d1bad |
ANDROID: Re-apply vendor hooks for rt_mutex information of blocked tasks
This reverts commit
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Sangmoon Kim
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3aabda4d52 |
ANDROID: Re-apply vendor hooks for information of blocked tasks
This reverts commit
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Stephen Dickey
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1050e6e021 |
ANDROID: sched: core: hook for get_nohz_timer_target
Allow module to control behavior of get_nohz_timer_target. Bug: 205164003 Change-Id: I38cb201ebf06db7bbce0d6cb68dbbe3729355be8 Signed-off-by: Stephen Dickey <quic_dickey@quicinc.com> |
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Stephen Dickey
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a243208877 |
ANDROID: kernel: sched: tracehook for is_cpu_allowed
To support the replacement of pause, is_cpu_allowed is the best place to hook into the code to restrict CPUs for a module based implementation. This restricts select_fallback_rq, select_task_rq, and __migate_task, to ensure the cpu is allowed. Include a hook in is_cpu_allowed to allow the module to control which cpu is allowed during a migration event. Bug: 205164003 Change-Id: I665e4d39318079bdb99bd248969ecb9eb528f9df Signed-off-by: Stephen Dickey <quic_dickey@quicinc.com> |
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Hajun Sung
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9c25e5d6f5 |
ANDROID: gic: Add vendor hook to GIC
Add vendor hook for affinity setting to GIC irqchip driver. GIC irqchip driver support only single CPU for affinity setting. But GIC HW can support multi target IRQ action, any available CPU can service IRQ when requested irq arised. This feature is very useful for some fast irq action required device. So Add vendor hook to support multi target affinity setting. Bug: 210559155 Change-Id: If44b2244bb623bf8d4755109a6dca32ac35df795 Signed-off-by: Hajun Sung <hajun.sung@samsung.com> |
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Choonghoon Park
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cabf26b4eb |
ANDROID: sched: Add vendor hook to select ilb cpu
Add android_rvh_find_new_ilb to select a next ilb cpu for vendors. Bug: 190228983 Change-Id: Iba1a0cd9cdc22dcf628dd33f8d838fe513a4818f Signed-off-by: Choonghoon Park <choong.park@samsung.com> |
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Choonghoon Park
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25d620ba79 |
ANDROID: GKI: sched: add rvh for new cfs task util
A vendor hook is added in post_init_entity_util_avg before a new cfs task's util is attached to cfs_rq's util so that vendors can gather and modify se's information to modify scheduling behavior and DVFS as they want. trace_android_rvh_new_task_stats is not a proper hook because it is called after the task's util is attached to cfs_rq's util, which means updating cfs_rq's sched_avg and DVFS request are done. Bug: 184219858 Signed-off-by: Choonghoon Park <choong.park@samsung.com> Change-Id: I2deaa93297f8464895978496c9838cdffaa35b7f |
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Park Bumgyu
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ca6883251a |
ANDROID: sched: add rvh for rebalance domains
Vendor scheduler may not want to rebalance between domains in some case. New vendor hook is added for vendor to decide whether rebalance domains. Bug: 176952463 Change-Id: Ie2edbd4b11679786096dd0170496904ae180583c Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com> |
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Greg Kroah-Hartman
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009596c521 |
Merge 5.15.13 into android13-5.15
Changes in 5.15.13 Input: i8042 - add deferred probe support Input: i8042 - enable deferred probe quirk for ASUS UM325UA tomoyo: Check exceeded quota early in tomoyo_domain_quota_is_ok(). tomoyo: use hwight16() in tomoyo_domain_quota_is_ok() net/sched: Extend qdisc control block with tc control block parisc: Clear stale IIR value on instruction access rights trap platform/mellanox: mlxbf-pmc: Fix an IS_ERR() vs NULL bug in mlxbf_pmc_map_counters platform/x86: apple-gmux: use resource_size() with res memblock: fix memblock_phys_alloc() section mismatch error ALSA: hda: intel-sdw-acpi: harden detection of controller ALSA: hda: intel-sdw-acpi: go through HDAS ACPI at max depth of 2 recordmcount.pl: fix typo in s390 mcount regex powerpc/ptdump: Fix DEBUG_WX since generic ptdump conversion efi: Move efifb_setup_from_dmi() prototype from arch headers selinux: initialize proto variable in selinux_ip_postroute_compat() scsi: lpfc: Terminate string in lpfc_debugfs_nvmeio_trc_write() net/mlx5: DR, Fix NULL vs IS_ERR checking in dr_domain_init_resources net/mlx5: Fix error print in case of IRQ request failed net/mlx5: Fix SF health recovery flow net/mlx5: Fix tc max supported prio for nic mode net/mlx5e: Wrap the tx reporter dump callback to extract the sq net/mlx5e: Fix interoperability between XSK and ICOSQ recovery flow net/mlx5e: Fix ICOSQ recovery flow for XSK net/mlx5e: Use tc sample stubs instead of ifdefs in source file net/mlx5e: Delete forward rule for ct or sample action udp: using datalen to cap ipv6 udp max gso segments selftests: Calculate udpgso segment count without header adjustment sctp: use call_rcu to free endpoint net/smc: fix using of uninitialized completions net: usb: pegasus: Do not drop long Ethernet frames net: ag71xx: Fix a potential double free in error handling paths net: lantiq_xrx200: fix statistics of received bytes NFC: st21nfca: Fix memory leak in device probe and remove net/smc: don't send CDC/LLC message if link not ready net/smc: fix kernel panic caused by race of smc_sock igc: Do not enable crosstimestamping for i225-V models igc: Fix TX timestamp support for non-MSI-X platforms drm/amd/display: Send s0i2_rdy in stream_count == 0 optimization drm/amd/display: Set optimize_pwr_state for DCN31 ionic: Initialize the 'lif->dbid_inuse' bitmap net/mlx5e: Fix wrong features assignment in case of error net: bridge: mcast: add and enforce query interval minimum net: bridge: mcast: add and enforce startup query interval minimum selftests/net: udpgso_bench_tx: fix dst ip argument selftests: net: Fix a typo in udpgro_fwd.sh net: bridge: mcast: fix br_multicast_ctx_vlan_global_disabled helper net/ncsi: check for error return from call to nla_put_u32 selftests: net: using ping6 for IPv6 in udpgro_fwd.sh fsl/fman: Fix missing put_device() call in fman_port_probe i2c: validate user data in compat ioctl nfc: uapi: use kernel size_t to fix user-space builds uapi: fix linux/nfc.h userspace compilation errors drm/nouveau: wait for the exclusive fence after the shared ones v2 drm/amdgpu: When the VCN(1.0) block is suspended, powergating is explicitly enabled drm/amdgpu: add support for IP discovery gc_info table v2 drm/amd/display: Changed pipe split policy to allow for multi-display pipe split xhci: Fresco FL1100 controller should not have BROKEN_MSI quirk set. usb: gadget: f_fs: Clear ffs_eventfd in ffs_data_clear. usb: mtu3: add memory barrier before set GPD's HWO usb: mtu3: fix list_head check warning usb: mtu3: set interval of FS intr and isoc endpoint nitro_enclaves: Use get_user_pages_unlocked() call to handle mmap assert binder: fix async_free_space accounting for empty parcels scsi: vmw_pvscsi: Set residual data length conditionally Input: appletouch - initialize work before device registration Input: spaceball - fix parsing of movement data packets mm/damon/dbgfs: fix 'struct pid' leaks in 'dbgfs_target_ids_write()' net: fix use-after-free in tw_timer_handler fs/mount_setattr: always cleanup mount_kattr perf intel-pt: Fix parsing of VM time correlation arguments perf script: Fix CPU filtering of a script's switch events perf scripts python: intel-pt-events.py: Fix printing of switch events Linux 5.15.13 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ie0d5130643ce211d5e21ea9d11bc5577efeddc90 |
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Todd Kjos
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17691bada6 |
binder: fix async_free_space accounting for empty parcels
commit cfd0d84ba28c18b531648c9d4a35ecca89ad9901 upstream. In 4.13, commit |
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Greg Kroah-Hartman
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1dcc7190fe |
Merge 5.15.8 into android13-5.15
Changes in 5.15.8
usb: gadget: uvc: fix multiple opens
HID: quirks: Add quirk for the Microsoft Surface 3 type-cover
HID: google: add eel USB id
HID: intel-ish-hid: ipc: only enable IRQ wakeup when requested
HID: add hid_is_usb() function to make it simpler for USB detection
HID: add USB_HID dependancy to hid-prodikeys
HID: add USB_HID dependancy to hid-chicony
HID: add USB_HID dependancy on some USB HID drivers
HID: bigbenff: prevent null pointer dereference
HID: wacom: fix problems when device is not a valid USB device
HID: check for valid USB device for many HID drivers
mtd: dataflash: Add device-tree SPI IDs
mmc: spi: Add device-tree SPI IDs
HID: sony: fix error path in probe
HID: Ignore battery for Elan touchscreen on Asus UX550VE
platform/x86/intel: hid: add quirk to support Surface Go 3
nft_set_pipapo: Fix bucket load in AVX2 lookup routine for six 8-bit groups
IB/hfi1: Insure use of smp_processor_id() is preempt disabled
IB/hfi1: Fix early init panic
IB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr
can: kvaser_usb: get CAN clock frequency from device
can: kvaser_pciefd: kvaser_pciefd_rx_error_frame(): increase correct stats->{rx,tx}_errors counter
can: sja1000: fix use after free in ems_pcmcia_add_card()
can: pch_can: pch_can_rx_normal: fix use after free
can: m_can: m_can_read_fifo: fix memory leak in error branch
can: m_can: pci: fix incorrect reference clock rate
can: m_can: pci: fix iomap_read_fifo() and iomap_write_fifo()
can: m_can: Disable and ignore ELO interrupt
net: dsa: mv88e6xxx: fix "don't use PHY_DETECT on internal PHY's"
net: dsa: mv88e6xxx: allow use of PHYs on CPU and DSA ports
x86/sme: Explicitly map new EFI memmap table as encrypted
platform/x86: amd-pmc: Fix s2idle failures on certain AMD laptops
nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done
selftests: netfilter: add a vrf+conntrack testcase
vrf: don't run conntrack on vrf with !dflt qdisc
bpf, x86: Fix "no previous prototype" warning
bpf, sockmap: Attach map progs to psock early for feature probes
bpf: Make sure bpf_disable_instrumentation() is safe vs preemption.
bpf: Fix the off-by-two error in range markings
ice: ignore dropped packets during init
ethtool: do not perform operations on net devices being unregistered
bonding: make tx_rebalance_counter an atomic
nfp: Fix memory leak in nfp_cpp_area_cache_add()
seg6: fix the iif in the IPv6 socket control block
udp: using datalen to cap max gso segments
netfilter: nft_exthdr: break evaluation if setting TCP option fails
netfilter: conntrack: annotate data-races around ct->timeout
iavf: restore MSI state on reset
iavf: Fix reporting when setting descriptor count
IB/hfi1: Correct guard on eager buffer deallocation
devlink: fix netns refcount leak in devlink_nl_cmd_reload()
net: bcm4908: Handle dma_set_coherent_mask error codes
net: dsa: mv88e6xxx: error handling for serdes_power functions
net: dsa: felix: Fix memory leak in felix_setup_mmio_filtering
net/sched: fq_pie: prevent dismantle issue
net: mvpp2: fix XDP rx queues registering
KVM: x86: Don't WARN if userspace mucks with RCX during string I/O exit
KVM: x86: Ignore sparse banks size for an "all CPUs", non-sparse IPI req
KVM: x86: Wait for IPIs to be delivered when handling Hyper-V TLB flush hypercall
timers: implement usleep_idle_range()
mm/damon/core: fix fake load reports due to uninterruptible sleeps
mm/slub: fix endianness bug for alloc/free_traces attributes
mm: bdi: initialize bdi_min_ratio when bdi is unregistered
ALSA: ctl: Fix copy of updated id with element read/write
ALSA: hda/realtek - Add headset Mic support for Lenovo ALC897 platform
ALSA: hda/realtek: Fix quirk for TongFang PHxTxX1
ALSA: pcm: oss: Fix negative period/buffer sizes
ALSA: pcm: oss: Limit the period size to 16MB
ALSA: pcm: oss: Handle missing errors in snd_pcm_oss_change_params*()
cifs: Fix crash on unload of cifs_arc4.ko
scsi: qla2xxx: Format log strings only if needed
btrfs: clear extent buffer uptodate when we fail to write it
btrfs: fix re-dirty process of tree-log nodes
btrfs: replace the BUG_ON in btrfs_del_root_ref with proper error handling
btrfs: free exchange changeset on failures
perf intel-pt: Fix some PGE (packet generation enable/control flow packets) usage
perf intel-pt: Fix sync state when a PSB (synchronization) packet is found
perf intel-pt: Fix intel_pt_fup_event() assumptions about setting state type
perf intel-pt: Fix state setting when receiving overflow (OVF) packet
perf intel-pt: Fix next 'err' value, walking trace
perf intel-pt: Fix missing 'instruction' events with 'q' option
perf intel-pt: Fix error timestamp setting on the decoder error path
md: fix update super 1.0 on rdev size change
nfsd: fix use-after-free due to delegation race
nfsd: Fix nsfd startup race (again)
tracefs: Have new files inherit the ownership of their parent
selftests: KVM: avoid failures due to reserved HyperTransport region
hwmon: (pwm-fan) Ensure the fan going on in .probe()
mmc: renesas_sdhi: initialize variable properly when tuning
clk: qcom: regmap-mux: fix parent clock lookup
thermal: int340x: Fix VCoRefLow MMIO bit offset for TGL
drm/syncobj: Deal with signalled fences in drm_syncobj_find_fence.
libata: add horkage for ASMedia 1092
io_uring: ensure task_work gets run as part of cancelations
wait: add wake_up_pollfree()
binder: use wake_up_pollfree()
signalfd: use wake_up_pollfree()
aio: keep poll requests on waitqueue until completed
aio: fix use-after-free due to missing POLLFREE handling
tracefs: Set all files to the same group ownership as the mount option
i2c: mpc: Use atomic read and fix break condition
block: fix ioprio_get(IOPRIO_WHO_PGRP) vs setuid(2)
scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()
scsi: scsi_debug: Fix buffer size of REPORT ZONES command
ALSA: usb-audio: Reorder snd_djm_devices[] entries
qede: validate non LSO skb length
PM: runtime: Fix pm_runtime_active() kerneldoc comment
ASoC: rt5682: Fix crash due to out of scope stack vars
ASoC: qdsp6: q6routing: Fix return value from msm_routing_put_audio_mixer
ASoC: codecs: wsa881x: fix return values from kcontrol put
ASoC: codecs: wcd934x: handle channel mappping list correctly
ASoC: codecs: wcd934x: return correct value from mixer put
RDMA/hns: Do not halt commands during reset until later
RDMA/hns: Do not destroy QP resources in the hw resetting phase
hwmon: (dell-smm) Fix warning on /proc/i8k creation error
clk: imx: use module_platform_driver
clk: qcom: clk-alpha-pll: Don't reconfigure running Trion
i40e: Fix failed opcode appearing if handling messages from VF
i40e: Fix pre-set max number of queues for VF
mtd: rawnand: fsmc: Take instruction delay into account
mtd: rawnand: fsmc: Fix timing computation
bpf, sockmap: Re-evaluate proto ops when psock is removed from sockmap
i40e: Fix NULL pointer dereference in i40e_dbg_dump_desc
Revert "PCI: aardvark: Fix support for PCI_ROM_ADDRESS1 on emulated bridge"
drm/amd/display: Fix DPIA outbox timeout after S3/S4/reset
perf tools: Fix SMT detection fast read path
Documentation/locking/locktypes: Update migrate_disable() bits.
dt-bindings: net: Reintroduce PHY no lane swap binding
tools build: Remove needless libpython-version feature check that breaks test-all fast path
net: cdc_ncm: Allow for dwNtbOutMaxSize to be unset or zero
net: altera: set a couple error code in probe()
net: fec: only clear interrupt of handling queue in fec_enet_rx_queue()
net, neigh: clear whole pneigh_entry at alloc time
net/qla3xxx: fix an error code in ql_adapter_up()
selftests/fib_tests: Rework fib_rp_filter_test()
USB: gadget: detect too-big endpoint 0 requests
USB: gadget: zero allocate endpoint 0 buffers
Revert "usb: dwc3: dwc3-qcom: Enable tx-fifo-resize property by default"
usb: core: config: fix validation of wMaxPacketValue entries
xhci: Remove CONFIG_USB_DEFAULT_PERSIST to prevent xHCI from runtime suspending
usb: core: config: using bit mask instead of individual bits
xhci: avoid race between disable slot command and host runtime suspend
iio: gyro: adxrs290: fix data signedness
iio: trigger: Fix reference counting
iio: trigger: stm32-timer: fix MODULE_ALIAS
iio: stk3310: Don't return error code in interrupt handler
iio: mma8452: Fix trigger reference couting
iio: ltr501: Don't return error code in trigger handler
iio: kxsd9: Don't return error code in trigger handler
iio: itg3200: Call iio_trigger_notify_done() on error
iio: dln2-adc: Fix lockdep complaint
iio: dln2: Check return value of devm_iio_trigger_register()
iio: at91-sama5d2: Fix incorrect sign extension
iio: adc: stm32: fix a current leak by resetting pcsel before disabling vdda
iio: adc: axp20x_adc: fix charging current reporting on AXP22x
iio: ad7768-1: Call iio_trigger_notify_done() on error
iio: accel: kxcjk-1013: Fix possible memory leak in probe and remove
misc: rtsx: Avoid mangling IRQ during runtime PM
nvmem: eeprom: at25: fix FRAM byte_len
bus: mhi: pci_generic: Fix device recovery failed issue
bus: mhi: core: Add support for forced PM resume
csky: fix typo of fpu config macro
irqchip/aspeed-scu: Replace update_bits with write_bits.
irqchip/armada-370-xp: Fix return value of armada_370_xp_msi_alloc()
irqchip/armada-370-xp: Fix support for Multi-MSI interrupts
aio: Fix incorrect usage of eventfd_signal_allowed()
irqchip/irq-gic-v3-its.c: Force synchronisation when issuing INVALL
irqchip: nvic: Fix offset for Interrupt Priority Offsets
misc: fastrpc: fix improper packet size calculation
clocksource/drivers/dw_apb_timer_of: Fix probe failure
bpf: Add selftests to cover packet access corner cases
Linux 5.15.8
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I4d543d6826c20e322ce477fe82c462791dc36ce4
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Tengfei Fan
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46161882da |
ANDROID: sched: add hook point in do_sched_yield()
When a task yields, it relinquishes the cpu and scheduler is tasked to find another task. However our vendor scheduler logic implementation could return the same task leading to a loop where the yielded task gets to run back, so add hook point in do_sched_yield() for vendor can do some work before task is scheduled. Bug: 205804537 Change-Id: I6528c3f4b0ee360559ef9c97cb1eb2b2d1357870 Signed-off-by: Tengfei Fan <quic_tengfan@quicinc.com> Signed-off-by: Sai Harshini Nimmala <quic_snimmala@quicinc.com> |
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Eric Biggers
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f12d997683 |
binder: use wake_up_pollfree()
commit a880b28a71e39013e357fd3adccd1d8a31bc69a8 upstream.
wake_up_poll() uses nr_exclusive=1, so it's not guaranteed to wake up
all exclusive waiters. Yet, POLLFREE *must* wake up all waiters. epoll
and aio poll are fortunately not affected by this, but it's very
fragile. Thus, the new function wake_up_pollfree() has been introduced.
Convert binder to use wake_up_pollfree().
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Fixes:
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Liujie Xie
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f4450be6e7 |
ANDROID: vendor_hooks: Add hooks for improving binder trans
Recognize important binder proc & binder thread and improve their sched lantency. Bug: 182952552 Change-Id: I174949bf90a4215a6d27f24abbc7d324a321e662 Signed-off-by: Liujie Xie <xieliujie@oppo.com> Signed-off-by: Shaleen Agrawal <quic_shalagra@quicinc.com> |
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Greg Kroah-Hartman
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ae4825a553 |
Revert "ANDROID: rwsem: Add vendor hook to the rw-semaphore"
This reverts commit |
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Todd Kjos
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849d86e859 |
binder: fix test regression due to sender_euid change
commit c21a80ca0684ec2910344d72556c816cb8940c01 upstream.
This is a partial revert of commit
29bc22ac5e5b ("binder: use euid from cred instead of using task").
Setting sender_euid using proc->cred caused some Android system test
regressions that need further investigation. It is a partial
reversion because subsequent patches rely on proc->cred.
Fixes: 29bc22ac5e5b ("binder: use euid from cred instead of using task")
Cc: stable@vger.kernel.org # 4.4+
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Todd Kjos <tkjos@google.com>
Change-Id: I9b1769a3510fed250bb21859ef8beebabe034c66
Link: https://lore.kernel.org/r/20211112180720.2858135-1-tkjos@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Mukesh Ojha
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0820d8e399 |
ANDROID: logbuf: Add new logbuf vendor hook to support pr_cont()
Add new logbuf vendor hook android_vh_logbuf_pr_cont()
to capture pr_cont logs.
Bug: 199236943
Change-Id: I76b310fc9caac71b344b6cc25ea36f7f81cb7148
Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
(cherry picked from commit
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Mukesh Ojha
|
976f1840da |
ANDROID: logbuf: vendor hook for logbuf dump on oops
Initial kernel bootup logs get overwritten after running
for a long time, and there can be debugging scenario where
we need initial ~100s bootup logs for debugging.
'android_vh_initial_logbuf' vendor hook is helping in
achieving this purpose.
Bug: 199236943
Change-Id: I706824aeb566c09ecaf4b5900973d6cee8a2f35b
Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
(cherry picked from commit
|
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Prasad Sodagudi
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b2df67a932 |
ANDROID: android: Create debug_symbols driver
Introduce new API to expose symbols useful for debugging the GKI kernel. Symbols exported from this driver would be difficult to maintain via the traditional EXPORT_SYMBOL_GPL. Bug: 199236943 Change-Id: I1cadb409289ca9ce36b0084efc9ac46f6bec6741 Signed-off-by: Elliot Berman <eberman@codeaurora.org> Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org> Signed-off-by: Yogesh Lal <ylal@codeaurora.org> |