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xieliujie 260bfad693 ANDROID: vendor_hook: Add hooks to support reader optimistic spin in rwsem 
Since upstream commit 617f3ef951 ("locking/rwsem: Remove
reader optimistic spinning"), vendors have seen increased
contention and blocking on rwsems.

There are attempts to actively fix this upstream:
  https://lore.kernel.org/lkml/20240406081126.8030-1-bongkyu7.kim@samsung.com/

But in the meantime, provide vendorhooks so that vendors can
implement their own optimistic spin routine. In doing so,
vendors see improvements in cold launch times on important apps.

Bug: 331742151
Change-Id: I7466413de9ee1293e86f73880931235d7a9142ac
Signed-off-by: xieliujie <xieliujie@oppo.com>
[jstultz: Rewrote commit message]
Signed-off-by: John Stultz <jstultz@google.com>
2024-04-24 10:30:39 +08:00
..
acpi
asm-generic Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1" 2024-04-02 19:49:12 +00:00
clocksource
crypto Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1" 2024-04-02 19:49:12 +00:00
drm Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1" 2024-04-02 19:49:12 +00:00
dt-bindings Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1" 2024-04-02 19:49:12 +00:00
keys
kunit kunit: add macro to allow conditionally exposing static symbols to tests 2023-11-20 11:52:08 +01:00
kvm Merge 6.1.47 into android14-6.1-lts 2023-09-13 19:35:46 +00:00
linux ANDROID: GKI: fix ABI breakage in struct userfaultfd_ctx 2024-04-22 18:09:14 +00:00
math-emu
media Revert "media: cec: core: add adap_nb_transmit_canceled() callback" 2023-10-12 14:10:23 +00:00
memory
misc
net UPSTREAM: af_unix: Do not use atomic ops for unix_sk(sk)->inflight. 2024-04-22 16:22:57 -07:00
pcmcia
ras
rdma RDMA/core: Fix umem iterator when PAGE_SIZE is greater then HCA pgsz 2023-12-13 18:39:15 +01:00
rv
scsi scsi: sd: Fix system start for ATA devices 2023-12-08 08:51:14 +01:00
soc
sound Revert "ASoC: soc-card: Add storage for PCI SSID" 2023-12-12 18:42:07 +00:00
target
trace ANDROID: vendor_hook: Add hooks to support reader optimistic spin in rwsem 2024-04-24 10:30:39 +08:00
uapi BACKPORT: userfaultfd: UFFDIO_MOVE uABI 2024-04-22 18:09:14 +00:00
ufs
vdso
video
xen xen: simplify evtchn_do_upcall() call maze 2023-12-08 08:51:20 +01:00