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ANDROID: vendor_hook: add hooks in dm_bufio.c

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1. android_vh_dm_bufio_shrink_scan_bypass
To adjust dm_bufio-buffer shrinker's policy in some cases.
2. cleanup_old_buffers_bypass
To adjust the policy of dm_bufio-buffer periodic eviction
in some cases.

Bug: 281467813

Signed-off-by: Peifeng Li <lipeifeng@oppo.com>
Change-Id: I29a9d91d18d2e279170533db83b59cfc3b17ebe2
This commit is contained in:
Peifeng Li
2023-05-08 14:52:00 +08:00
parent f03258701d
commit 64c7044d39
3 changed files with 27 additions and 0 deletions
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8
include/trace/hooks/mm.h
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@@ -126,6 +126,14 @@ DECLARE_HOOK(android_vh_save_track_hash,
DECLARE_HOOK(android_vh_vmpressure,
TP_PROTO(struct mem_cgroup *memcg, bool *bypass),
TP_ARGS(memcg, bypass));
DECLARE_HOOK(android_vh_dm_bufio_shrink_scan_bypass,
TP_PROTO(unsigned long dm_bufio_current_allocated, bool *bypass),
TP_ARGS(dm_bufio_current_allocated, bypass));
DECLARE_HOOK(android_vh_cleanup_old_buffers_bypass,
TP_PROTO(unsigned long dm_bufio_current_allocated,
unsigned long *max_age_hz,
bool *bypass),
TP_ARGS(dm_bufio_current_allocated, max_age_hz, bypass));
DECLARE_HOOK(android_vh_mem_cgroup_alloc,
TP_PROTO(struct mem_cgroup *memcg),
TP_ARGS(memcg));