There are few vendor hooks available for binder wakeup related
functionality. As they both essentially do the same thing, we can
consolidate them into one.
Bug: 174219217
Change-Id: I44b472e7564eecbe8236ad2eb88b0433195f14d8
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
place_entity() vendor hook is meant to tweak vruntime by vendor
modules as needed, but with current form of the hook that is not
possible as vruntime is passed by it's value. Fix it by switching
to pass by reference.
Bug: 175448877
Change-Id: Ibb51592f94da31019fa98a6767d080ec61daafe6
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
Add a restricted vendor hook when a set of tasks change the cgroups in
the cpu controller. This facilitates various scheduler value adds.
Bug: 175045928
Change-Id: I544046d631f4d6c9bc2b999e054b5a296ec31a81
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Incorporate a vendor hook in the resume cpus path
so that vendor specific activities may take place.
Bug: 161210528
Change-Id: I74d03247491b004e891dbcfe06a478d00a95ba9f
Signed-off-by: Stephen Dickey <dickey@codeaurora.org>
We have debug infrastructure built on top of preempt/irq disable/enable
events. This requires modifications to the kernel tracing code. Since
this is not feasible with GKI, we started with registering to the
existing preemptirq trace events. However the performance of wide
variety of use cases are regressed as the rate of preemptirq events
is super high and generic trace events are slow.
Since GKI allows optimized trace events via restricted trace hooks,
add the same for preemptirq event.
Bug: 174541725
Change-Id: Ic8d3cdd1c1aa6a9267d0b755694fedffa2ea8e36
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Create a vendor hook inside of gfp_zone() to modify which allocations
get to enter ZONE_MOVABLE, by zeroing out __GFP_HIGHMEM inside of the
trace hook based on certain conditions.
Separately, create separate trace hooks in the swap-in and readahead
paths to affect the behavior of the tracehook in gfp_zone().
Bug: 158645321
Change-Id: I4a4f0b724267ee120a1e5661f6da5d43d7ef6fc6
Signed-off-by: Chris Goldsworthy <cgoldswo@codeaurora.org>
Vendors might want to change tasks affinity settings when they are
moving from one cpuset into the other. Add vendor hook to give control
to vendor to implement what they need.
Bug: 174125747
Change-Id: Icee0405be0bca432002dae4a26ebe945082ce052
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
Vendors might want to change tasks affinity settings when they are
moving from one cpuset into the other. Add vendor hook to give control
to vendor to implement what they need in sched_setaffinity().
Bug: 174125747
Change-Id: Ie703448147377cd62e76a58b620a7ab849a04924
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
This is to add capability for vendor to decide whether a cpufreq update
is needed, e.g. up/down rate limit.
Using restricted hook since it can be called from scheduler wakeup path.
Bug: 170511085
Signed-off-by: Wei Wang <wvw@google.com>
Change-Id: If9adea3a3e31efbf3858fbd009665a07dc70c638
(cherry picked from commit f9f3464532a045257f8138338b1beda86ef0a3be)
Signed-off-by: Will McVicker <willmcvicker@google.com>
Upstream moved the sugov to DEADLINE class which has higher prio than RT
so it can potentially block many RT use case in Android.
Also currently iowait doesn't distinguish background/foreground tasks
and we have seen cases where device run to high frequency unnecessarily
when running some background I/O.
Bug: 171598214
Signed-off-by: Wei Wang <wvw@google.com>
Change-Id: I21e9bfe9ef75a4178279574389e417c3f38e65ac
(cherry picked from commit 03177ef82bd942a3f163e826063491bae6ff0ac9)
Signed-off-by: Will McVicker <willmcvicker@google.com>
Add hooks for vendor specific find_energy_efficient_cpu logic.
Bug: 170507310
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: I064b501017e32d4f22f8128bed8bf3a1508ab15b
(cherry picked from commit 2f108e2ec6e89609cbae32c5d13d6ad9f2e858cb)
Signed-off-by: Will McVicker <willmcvicker@google.com>
android_rvh_sched_nohz_balancer_kick hook allows vendor modules to
select the busiest CPU in a group during load balance. When the
load balancer could not pull tasks from this busiest CPU due to
affinity restriction, the CPU is cleared from env->cpu. This must
be passed to the vendor module, otherwise we keep selecting the
exempted CPU as the busiest CPU.
Bug: 174338902
Change-Id: Iedaa389a51849da4c3e094d731fe5e39cd909d81
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
The following restrict vendor hooks are added. The vendor hook
can selectively opt in for the default scheduler behavior by not
modifying the done argument.
- android_rvh_sched_newidle_balance: For newly idle load balance.
- android_rvh_sched_nohz_balancer_kick: For deciding if an idle
CPU is woken up to do nohz balance or not.
- android_rvh_find_busiest_queue: For selecting the busiest runqueue
among the CPUs in the busiest group selected in find_busiest_group.
- android_rvh_migrate_queued_task: Vendor implementations may require
both source and destination CPUs runqueue locks to be held while
calling set_task_cpu() during a task migration. Add a hook when
a queued task is migration so that vendor implementation can detach
the task and call set_task_cpu() with both runqueue locks held.
Bug: 173661641
Change-Id: I6a09226081061b6433e4231359be252a0f28f04b
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
QC value-add requires the ability to override the value displayed
by show_cpuinfo_max_freq.
Bug: 173984660
Signed-off-by: Todd Kjos <tkjos@google.com>
Change-Id: Ida11256f399f0730bc1228524b9687df3e7b8bf4
Right now, invocation of find_lowest_rq() vendor hook is made before
error checks and also, cpupri_find() isn't exported either. It would be
appropriate to move invocation of find_lowest_rq() vendor hook after
error checks are done & calling cpupri_find().
Bug: 173559623
Change-Id: I298dffd39be0451b0b154930ace4e16763c6e78d
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
Pull nfsd fix from Bruce Fields:
"Just one quick fix for a tracing oops"
* tag 'nfsd-5.10-2' of git://linux-nfs.org/~bfields/linux:
SUNRPC: Fix oops in the rpc_xdr_buf event class
Add vendor hook to print epoch values when system enter and exit
out of suspend and resume. These epoch values are useful to know
how long the device is in suspend state. These values can be used
to synchronize various subsystem timestamps and have an unique
timestamp to correlate between various subsystems.
Bug: 172945021
Change-Id: I82a01e348d05a46c9c3921869cc9d2fc0fd28867
Signed-off-by: Murali Nalajala <mnalajal@codeaurora.org>
Backchannel rpc tasks don't have task->tk_client set, so it's necessary
to check it for NULL before dereferencing.
Fixes: c509f15a58 ("SUNRPC: Split the xdr_buf event class")
Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Create a vendor hook for jiffies updates by the
tick_do_timer_cpu.
Bug: 148928265
Change-Id: Ia442e20d446b8ce4f2b3f2be76655e72919c76eb
Signed-off-by: Amir Vajid <avajid@codeaurora.org>
Tasklets are supposed to finish their work quickly and
should not block the current running process, but it is not
guaranteed that. Currently softirq_entry/exit can be used to
know total tasklets execution time, but not helpful to track
individual tasklet's execution time. With that we can't find
any culprit tasklet function, which is taking more time.
Add {hi}-tasklet_entry/exit trace point support to track
individual tasklet execution.
Bug: 168521633
Change-Id: I3496d15f64d020916774e673ccb4a8116ea2f2c9
Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org>
[elavila: Port to mainline]
Signed-off-by: J. Avila <elavila@google.com>
Pull nfsd fixes from Bruce Fields:
"This is mainly server-to-server copy and fallout from Chuck's 5.10 rpc
refactoring"
* tag 'nfsd-5.10-1' of git://linux-nfs.org/~bfields/linux:
net/sunrpc: fix useless comparison in proc_do_xprt()
net/sunrpc: return 0 on attempt to write to "transports"
NFSD: fix missing refcount in nfsd4_copy by nfsd4_do_async_copy
NFSD: Fix use-after-free warning when doing inter-server copy
NFSD: MKNOD should return NFSERR_BADTYPE instead of NFSERR_INVAL
SUNRPC: Fix general protection fault in trace_rpc_xdr_overflow()
NFSD: NFSv3 PATHCONF Reply is improperly formed
If inode gets evicted due to memory pressure, we have to remove it
from the fast commit list. However, that inode may have uncommitted
changes that fast commits will lose. So, just fall back to full
commits in this case. Also, rename the fast commit ineligiblity reason
from "EXT4_FC_REASON_MEM" to "EXT4_FC_REASON_MEM_NOMEM" for better
expression.
Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20201106035911.1942128-3-harshadshirwadkar@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
The TP_fast_assign() section is careful enough not to dereference
xdr->rqst if it's NULL. The TP_STRUCT__entry section is not.
Fixes: 5582863f45 ("SUNRPC: Add XDR overflow trace event")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Create a trace hook when RT tasks are throttled. This allows
vendors to debug long RT runs.
Bug: 172264047
Change-Id: I534959f8e8d714463aac2f9f1c5627d2e735f543
Signed-off-by: Sai Harshini Nimmala <snimmala@codeaurora.org>
Fix build-break for non GKI builds caused by using the
_rcuidle() variant of a vendor hook.
Fixes: 56da24e7a9 ("ANDROID: vendor_hooks: Add vendor hooks for
getting printk messages")
Signed-off-by: Todd Kjos <tkjos@google.com>
Change-Id: I0dffaf7e0df198a63578818f7c155671efe382b5
Fix afs_invalidatepage() to adjust the dirty region recorded in
page->private when truncating a page. If the dirty region is entirely
removed, then the private data is cleared and the page dirty state is
cleared.
Without this, if the page is truncated and then expanded again by truncate,
zeros from the expanded, but no-longer dirty region may get written back to
the server if the page gets laundered due to a conflicting 3rd-party write.
It mustn't, however, shorten the dirty region of the page if that page is
still mmapped and has been marked dirty by afs_page_mkwrite(), so a flag is
stored in page->private to record this.
Fixes: 4343d00872 ("afs: Get rid of the afs_writeback record")
Signed-off-by: David Howells <dhowells@redhat.com>
The afs filesystem uses page->private to store the dirty range within a
page such that in the event of a conflicting 3rd-party write to the server,
we write back just the bits that got changed locally.
However, there are a couple of problems with this:
(1) I need a bit to note if the page might be mapped so that partial
invalidation doesn't shrink the range.
(2) There aren't necessarily sufficient bits to store the entire range of
data altered (say it's a 32-bit system with 64KiB pages or transparent
huge pages are in use).
So wrap the accesses in inline functions so that future commits can change
how this works.
Also move them out of the tracing header into the in-directory header.
There's not really any need for them to be in the tracing header.
Signed-off-by: David Howells <dhowells@redhat.com>
After upstream 33def8498f ("treewide: Convert macro and uses of
__section(foo) to __section("foo")"), the preprocessor macro __section
now requires the section name to be double quoted.
This patch resolves breakage that results from merging down from
mainline in this out of tree header.
Fixes: 33def8498f ("treewide: Convert macro and uses of __section(foo) to __section("foo")")
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie6a701251e6420e63187a466b43ec2c834e0ec2e
Steps on the way to 5.10-rc1
Resolves conflicts in:
Documentation/admin-guide/sysctl/vm.rst
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ic58f28718f28dae42948c935dfb0c62122fe86fc
Steps on the way to 5.10-rc1
Resolves conflicts in:
fs/ext4/dir.c
fs/ext4/ext4.h
fs/ext4/namei.c
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I397787046920175eb183fa5342d2923f819bb2f4
Steps on the way to 5.10-rc1
Resolves conflicts in:
fs/f2fs/dir.c
fs/f2fs/super.c
fs/libfs.c
include/linux/fs.h
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I9c6dc54ebbdf914bc87aa583b34a9eadcc133a58
Steps on the way to 5.10-rc1
Resolves merge issues in:
drivers/net/virtio_net.c
net/xfrm/xfrm_state.c
net/xfrm/xfrm_user.c
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I3132e7802f25cb775eb02d0b3a03068da39a6fe2
Steps on the way to 5.10-rc1
Fixes merge issues in:
drivers/scsi/ufs/ufs-qcom.c
drivers/scsi/ufs/ufshcd.c
drivers/scsi/ufs/ufshcd.h
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I69dcb6886b123c75dddf0781fe7bc04db7004032
