Commit Graph
4 Commits
Author SHA1 Message Date
Xiaojun Ji 4c1747097c Set max_ra_pages according to total ram size
Set 8 for ram size < 8G RAM and 16 for >= 8G RAM

Change-Id: I3b3561cf69f0b8e083395752806db652cc873289
Reviewed-on: https://gerrit.mot.com/2718477
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
2023-08-24 04:55:29 -05:00
Xiaojun Ji 6dd6d921ca moto_mmap_fault: Support the new hook
The latest GKI has added a vendor hook to tune ra size in
do_sync_mmap_readahead(). Add a new handler to limit the
mmap readahead size.

Change-Id: I609fd3e4583b37561faea5e108ca9e664f956098
Reviewed-on: https://gerrit.mot.com/2676241
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Zonghua Liu <a17671@motorola.com>
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Reviewed-by: Chuanchun Zhu <zhucc2@motorola.com>
Submit-Approved: Jira Key
Reviewed-on: https://gerrit.mot.com/2676239
2023-08-06 22:22:14 -05:00
Xiaojun Ji 453244628e moto_mmap_fault: Fix KASAN report use-after-free
ra_pages is defined "unsinged int", use "unsinged long" may cause mmap_miss
be overridden

KASAN report:
[ 1870.506567][T24426] ela_global-io: [name:report&]BUG: KASAN: use-after-free in filemap_fault_cache_page+0x60/0x14c [moto_mmap_fault]
[ 1870.506590][T24426] ela_global-io: [name:report&]Read of size 8 at addr ffffff80c936a2f0 by task ela_global-io/24426
[ 1870.506607][T24426] ela_global-io: [name:report&]
[ 1870.506634][T24426] ela_global-io: CPU: 0 PID: 24426 Comm: ela_global-io Tainted: P W O 5.10.168-android12-9-g8b5ca9694820-dirty #1
[ 1870.506651][T24426] ela_global-io: Hardware name: MT6879V_T/ZA (DT)
[ 1870.506670][T24426] ela_global-io: Call trace:
[ 1870.506701][T24426] ela_global-io: dump_backtrace+0x0/0x480
[ 1870.506722][T24426] ela_global-io: show_stack+0x1c/0x2c
[ 1870.506745][T24426] ela_global-io: dump_stack_lvl+0x13c/0x190
[ 1870.506769][T24426] ela_global-io: print_address_description+0x80/0x2ac
[ 1870.506791][T24426] ela_global-io: __kasan_report+0xf8/0x1a8
[ 1870.506811][T24426] ela_global-io: kasan_report+0x4c/0x88
[ 1870.506832][T24426] ela_global-io: __asan_report_load8_noabort+0x48/0x58
[ 1870.506856][T24426] ela_global-io: filemap_fault_cache_page+0x60/0x14c [moto_mmap_fault]
[ 1870.506882][T24426] ela_global-io: __traceiter_android_vh_filemap_fault_cache_page+0x84/0xc0
[ 1870.506906][T24426] ela_global-io: filemap_fault+0x14e0/0x163c
Change-Id: I915f54a5151a11284f828ae940c10b1e38b2460b
Reviewed-on: https://gerrit.mot.com/2683986
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Zonghua Liu <a17671@motorola.com>
Reviewed-by: Zhangqing Huang <huangzq2@motorola.com>
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
Reviewed-on: https://gerrit.mot.com/2700717
2023-08-06 22:22:09 -05:00
Xiaojun Ji 7106c1eae9 Revert "(CR) build: Only include modules needed by product"
After apply https://gerrit.mot.com/#/c/2078132/, the FPS is available after
flashing GKI but the touch(focaltech_v2_mmi) will be unavailable on courfr

This reverts commit 284e4b4bb7693a6c9552afefe5b4fe8944baa0b0.

Change-Id: I9f6ff86b0d9179aedc66c09e9358a052a01b3fc4
Reviewed-on: https://gerrit.mot.com/2078503
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Reviewed-by: Jianlin Nie <niejl1@motorola.com>
Submit-Approved: Jira Key
2021-09-28 04:39:34 -05:00