Since android_vh_alloc_pages_slowpath is revert by
commit e09000ee19 ("Revert half of "ANDROID: vendor_hooks: Add hooks
for memory when debug""). re-add hooks here to measure the duration
Bug: 182443489
Signed-off-by: liuhailong <liuhailong@oppo.com>
Change-Id: Ie4534047105d8409623692cc3811b55d9ddbd17d
Add vendor hook android_vh_set_shmem_page_flag in shmem_writepage to
set a flag in page_ext, which indicates that this page is a shmem page,
to be used in android_vh_get_swap_page. The shared page should not be
reclaimed to the extended memory, ie, the specified swap location.
Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: I33a9007c88b4d8aab3da044c8a05eb45d7e74f3a
Provide a vendor hook android_vh_free_pages to clear the
information in struct page_ext, when the page is freed.
Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: Iac8e3a72f59f8d3ae16dbc93d94034fe4b627d61
Provide a vendor hook android_vh_swap_slot_cache_active to
pass the active status of swap_slots_cache. This status
will be used in the process of reclaiming the pages that
is required to be reclaimed to a specified swap location.
Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: I8211760e0f37fe4a514f6ceaae9993925da8cd6d
Three vendor hooks are provided to extend struct swap_slots_cache.
The extended data are used to record the information of the
specified reclaimed swap location:
1) android_vh_alloc_swap_slot_cache, replace the function
alloc_swap_slot_cache adding allocation of the extension
of struct swap_slots_cache;
2) android_vh_drain_slots_cache_cpu, replace the function
drain_slots_cache_cpu adding the initialization of the
extension of struct swap_slots_cache;
3) android_vh_get_swap_page, replace the function get_swap_page,
according to the reclaimed location information of the page,
get the the swap page from the specified swap location;
Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: I3bce6e8cf255df1d879b7c4022d54981cce7c273
Provide a vendor hook android_vh_si_swapinf to replace the
process of updating nr_to_be_unused. When the page is swapped
to a specified swap location, nr_to_be_unused should not be
updated. Because the specified swap is regarded as a reserved
extended memory.
Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: Ie41caec345658589bf908fb0f96d038d1fba21f3
Two vendor hooks are added to extend the struct swap_info_struct:
android_vh_alloc_si, extend the allocation of struct swap_info_struct,
adding data to record the information of specified reclaimed location;
android_vh_init_swap_info_struct, adding initializing the extension of
struct swap_info_struct;
Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: I0e1d8e38ba7dfd52b609b1c14eb78f8b0ef0f9e6
When the page is unused, a vendor hook android_vh_unuse_swap_page
should be called to specify that the page should not be swapped
to the specified swap location any more.
Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: I3fc3675020517f7cc69c76a06150dfb2380dae21
Provide a vendor hook to replace the function free_swap_slot,
adding the free_swap_slot process of pages swapped to the
specified swap location(i.e., the reserved expended memory)
Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: Idd6d0007e64d56d556d1234a8b931fce06031809
The specified swap is regarded as reserved extended memory.
So nr_swap_pages and total_swap_pages should not be affected
by the specified swap.
Provide a vendor hook android_vh_account_swap_pages to replace
the updating process of nr_swap_pages and total_swap_pages.
When the page is swapped to the specified swap location,
nr_swap_pages and total_swap_pages should not be updated.
Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: Ib8dfb355d190399a037b9d9eda478a81c436e224
Add android_vh_page_referenced_one_end at the end of function
page_referenced_one to update the status that whether the page
need to be reclaimed to a specified swap location.
Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: Ia06a229956328ef776da5d163708dcb011a327fb
android_vh_count_pswpin, Update the write I/O statistics of the swap;
android_vh_count_pswpout, Update the read I/O statistics of the swap;
android_vh_count_swpout_vm_event, Replace count_swpout_vm_event with
adding updating the I/O statistics of the swap;
Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: I4eb69db59fe2d822555a508c2f0c6cd5ca9083d1
Provide a vendor hook to copy the status whether the page need to be
reclaimed to a specified swap location.
Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: I1a451b40407718900b56de6ed17b7fd5ef56da01
android_vh_waiting_for_page_migration: provide a vendor hook
to force not to reclaim the page under migration to a specified
swap location, until the migration is finished.
Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: Iceeae91cbd912d9c44d7eac25f1299bbff547388
android_vh_handle_pte_fault_end: after handle_pte_fault, update
the information that whether this page need to be reclaimed to
a swap location.
Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: I0ceb02422fc858ed96fbb47e220bf96bdc8fa68c
android_vh_swapin_add_anon_rmap: after add pte mapping to an anonymous
page durning do_swap_page, update the status that whether this page
need to be reclaimed to a swap location, according to the information
of vm_fault.
Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: I8a2d603102c315323817e6c9366db9b0da878344
android_vh_cow_user_page: when copy a page to a new page, set the
status that whether the new page should be reclaimed to a specified
swap location, according to the information of vm_fault.
Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: Ie445c7b034ca176ec1e8fd1cd67c88581bf9ddf4
Provide a vendor hook android_vh_page_isolated_for_reclaim to
process whether the page should be reclaimed to a specified
swap(i.e., the expanded memory).
This strategy will take into account the state of the current
process/application, resource usage, and other information.
Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: Id80a377c87bea13922e7b23963b050ab37ba0cb0
Tune ReadAhead size for better memory usage and performance.
accordding to Read-Ahead Efficiency on Mobile Devices: Observation,
Characterization, and Optimization form IEEE
Bug: 229839032
Change-Id: I91656bde5e616e181fd7557554d55e7ce1858136
Signed-off-by: liang zhang <liang.zhang@transsion.com>
Provide a vendor hook to skip cma-pages to add in pcplist when
free_unref_page_commit.
The patch is revelant to skip drain_all_pages in alloc_contig_range,
the revelant hooks is android_vh_cma_drain_all_pages_bypass
which is to avoid to delay in drain pcppages when drain_all_pages.
In most case, pcp->high is small so that free-pages with other mt_types
can also fill with pcplist full.
Bug: 224732340
Signed-off-by: Peifeng Li <lipeifeng@oppo.com>
Change-Id: Ifdeeed9f8934d87671ec3fa6787a02675b993082
Provide a vendor hook to allow drain_all_pages to be skipped
during alloc_contig_range in some cases to avoid delays caused by
it in cases when the benefits of draining pcp lists are known
to be small.
Bug: 224732340
Signed-off-by: Peifeng Li <lipeifeng@oppo.com>
Change-Id: I0a82f668cf985ad5344d666c0c6372a7e61c3798
Provide a vendor hook to allow drain_all_pages to be skipped
during direct reclaim in some cases to avoid delays caused by
it in cases when the benefits of draining pcp lists are known
to be small.
Bug: 220811627
Signed-off-by: Liujie Xie <xieliujie@oppo.com>
Change-Id: I0805241f81e0a94afcf62c98e97cff125d4061e2
This reverts parts of commit 24149445ad.
The hooks android_vh_alloc_pages_slowpath,
android_vh_print_slabinfo_header, and android_vh_cache_show are not used
by any vendor, so remove them to help with merge issues with future LTS
releases.
If this is needed by any real user, it can easily be reverted to add it
back and then the symbol should be added to the abi list at the same
time to prevent it from being removed again later.
Bug: 182443489
Cc: Liujie Xie <xieliujie@oppo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I63621110c0c38b7e5d5e5e6f85c513bf00ecc00b
Add a tracehook to allow callers into dma_alloc_contiguous() to make
use of the built-in CMA area if the caller has addressing limitations;
this provides a means of allocating from memory whose bounds are
restricted to the lower 4 GB of memory, without having to enable DMA32
(assuming the default CMA area has been restricted to the appropriate
address ranges).
Leaf changes summary: 1 artifact changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 0 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 1 Added variable
1 Added variable:
[A] 'tracepoint __tracepoint_android_vh_subpage_dma_contig_alloc'
Bug: 199917449
Change-Id: Ia86fb416376bca231405b06ab27b0674c8fe3e14
Signed-off-by: Chris Goldsworthy <quic_cgoldswo@quicinc.com>
Add hook in try_to_unmap_one() to trace this function for debug memory
swap bugs.
Bug: 198385827
Change-Id: I1fdbe60e09bb491b949e06a07133710453ecca03
Signed-off-by: Jiewen Wang <jiewen.wang@vivo.com>
Add hook in mmap_region() to record the vma and address information
of monitored processes.
Bug: 198385827
Change-Id: I0bde29113b47ca7f4a9f5d42a54188e791ca3b7e
Signed-off-by: Jiewen Wang <jiewen.wang@vivo.com>
int the commit: https://android-review.googlesource.com/c/kernel/common/+/1699406/
When we build our vendor driver, report two errors:
1) Symbol too long "trace_android_vh_get_unmapped_area_from_anti_fragment_pool"
2) Symbol too long "trace_android_vh_get_unmapped_area_include_reserved_zone"
So, I shorten the function names:
android_vh_get_unmapped_area_from_anti_fragment_pool --> android_vh_get_from_fragment_pool
android_vh_get_unmapped_area_include_reserved_zone --> android_vh_include_reserved_zone
Bug: 191439466
Signed-off-by: xieliujie <xieliujie@oppo.com>
Change-Id: Icee4faa24df4fe1fc29434cd205c4dea82b4fba5
Transmit the track action type to save_track_hash, otherwise we do not know it is allocation stack or free stack.
Fixes: 8bc6337823 ("ANDROID: vendor_hooks: add hooks for slab memory leak debugging")
Bug: 184928480
Signed-off-by: Liujie Xie <xieliujie@oppo.com>
Change-Id: I74c50c02cfb4ebbf3e9fecdf125e76946ff4e7d1
Add vendor_hooks to filemap_fault to cache page for oem's optimization.
Save the page for next time retry when VM_FAULT_RETRY returned.
Add ANDROID_OEM_DATA to vm_fault to save the page.
Bug: 188891314
Change-Id: Ibfc9ec950c3360e6f6ccb9546cab0acd89e5d316
Signed-off-by: Liangliang Li <liliangliang@vivo.com>
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>
Add hooks and additional fields in vm_struct and track structs
to store and report additional information for slab memory leak
debugging.
Bug: 184928480
Change-Id: I6897a6a98d4eaaea492673cefd4111a7ba741940
Signed-off-by: Liujie Xie <xieliujie@oppo.com>
Add vendor hook in order to track which process cause dirty page write
back pressure.
Bug: 188096764
Change-Id: I890299c97d7a8cf791f20d16d8d53b4615679b9e
Signed-off-by: Yang Yang <yang.yang@vivo.com>
When running 32-bit apps for a long time, virtual address becomes fragmented which can lead to allocation failures when a large virtually-contiguous area is requested.
Add hooks to implement pools to cluster together small-sized virtual address mappings.
Add hooks to implement reserved virtual address zone with usage restrictions controlled by vendor hooks.
These hooks help in controlling virtual address space fragmentation.
Bug: 187259935
Signed-off-by: xieliujie <xieliujie@oppo.com>
Change-Id: I48c057041f9c7b8c5ab0af305f0cd87a039d0447
Add a vendor hook for pagecache hit/miss and other
vendor specific functions.
Bug: 174088128
Bug: 172987241
Signed-off-by: Chiawei Wang <chiaweiwang@google.com>
Change-Id: Ie9f14a69a86b8ed81de766e44e30f2eba1d9bd84
Add a vendor hook for costly order page counting
and other vendor specific functions.
Bug: 174521902
Bug: 172987241
Signed-off-by: Chiawei Wang <chiaweiwang@google.com>
Change-Id: I89206727a462548cc3500b695d85c83ff003eec7
Remove macro versions of hooks that are no longer needed. The
macro versions are still needed when the _rcuidle version
of the hook is used (as in include/trace/hooks/debug.h).
Bug: 177416721
Signed-off-by: Todd Kjos <tkjos@google.com>
Change-Id: I4b50447e9a922ed038663d1459d7622dab30ffbb
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>
