Merge changes Ib70a8498,I06f7450c into main am: d53c1a7b62 am: 974ed3575d
Original change: https://android-review.googlesource.com/c/platform/system/core/+/2671361
Change-Id: Ib4586f5e4861b0fe8fed30492cca216e4ec95e5c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/fs_mgr/libsnapshot/partition_cow_creator.cpp b/fs_mgr/libsnapshot/partition_cow_creator.cpp
index 7057223..5bc7e65 100644
--- a/fs_mgr/libsnapshot/partition_cow_creator.cpp
+++ b/fs_mgr/libsnapshot/partition_cow_creator.cpp
@@ -131,15 +131,28 @@
return is_optimized;
}
-void WriteExtent(DmSnapCowSizeCalculator* sc, const chromeos_update_engine::Extent& de,
+bool WriteExtent(DmSnapCowSizeCalculator* sc, const chromeos_update_engine::Extent& de,
unsigned int sectors_per_block) {
const auto block_boundary = de.start_block() + de.num_blocks();
for (auto b = de.start_block(); b < block_boundary; ++b) {
for (unsigned int s = 0; s < sectors_per_block; ++s) {
- const auto sector_id = b * sectors_per_block + s;
+ // sector_id = b * sectors_per_block + s;
+ uint64_t block_start_sector_id;
+ if (__builtin_mul_overflow(b, sectors_per_block, &block_start_sector_id)) {
+ LOG(ERROR) << "Integer overflow when calculating sector id (" << b << " * "
+ << sectors_per_block << ")";
+ return false;
+ }
+ uint64_t sector_id;
+ if (__builtin_add_overflow(block_start_sector_id, s, §or_id)) {
+ LOG(ERROR) << "Integer overflow when calculating sector id ("
+ << block_start_sector_id << " + " << s << ")";
+ return false;
+ }
sc->WriteSector(sector_id);
}
}
+ return true;
}
std::optional<uint64_t> PartitionCowCreator::GetCowSize() {
@@ -167,7 +180,7 @@
// Allocate space for extra extents (if any). These extents are those that can be
// used for error corrections or to store verity hash trees.
for (const auto& de : extra_extents) {
- WriteExtent(&sc, de, sectors_per_block);
+ if (!WriteExtent(&sc, de, sectors_per_block)) return std::nullopt;
}
if (update == nullptr) return sc.cow_size_bytes();
@@ -182,7 +195,7 @@
}
for (const auto& de : written_op->dst_extents()) {
- WriteExtent(&sc, de, sectors_per_block);
+ if (!WriteExtent(&sc, de, sectors_per_block)) return std::nullopt;
}
}
diff --git a/libprocessgroup/profiles/cgroups.json b/libprocessgroup/profiles/cgroups.json
index d013ec8..3e4393d 100644
--- a/libprocessgroup/profiles/cgroups.json
+++ b/libprocessgroup/profiles/cgroups.json
@@ -1,6 +1,13 @@
{
"Cgroups": [
{
+ "Controller": "blkio",
+ "Path": "/dev/blkio",
+ "Mode": "0775",
+ "UID": "system",
+ "GID": "system"
+ },
+ {
"Controller": "cpu",
"Path": "/dev/cpuctl",
"Mode": "0755",
@@ -32,12 +39,6 @@
{
"Controller": "freezer",
"Path": "."
- },
- {
- "Controller": "io",
- "Path": ".",
- "NeedsActivation": true,
- "Optional": true
}
]
}
diff --git a/libprocessgroup/profiles/task_profiles.json b/libprocessgroup/profiles/task_profiles.json
index 12f7b44..1fc66ba 100644
--- a/libprocessgroup/profiles/task_profiles.json
+++ b/libprocessgroup/profiles/task_profiles.json
@@ -76,24 +76,6 @@
"Name": "FreezerState",
"Controller": "freezer",
"File": "cgroup.freeze"
- },
- {
- "Name": "BfqWeight",
- "Controller": "io",
- "File": "blkio.bfq.weight",
- "FileV2": "io.bfq.weight"
- },
- {
- "Name": "CfqGroupIdle",
- "Controller": "io",
- "File": "blkio.group_idle",
- "FileV2": "io.group_idle"
- },
- {
- "Name": "CfqWeight",
- "Controller": "io",
- "File": "blkio.weight",
- "FileV2": "io.weight"
}
],
@@ -457,30 +439,11 @@
"Name": "LowIoPriority",
"Actions": [
{
- "Name": "SetAttribute",
+ "Name": "JoinCgroup",
"Params":
{
- "Name": "BfqWeight",
- "Value": "10",
- "Optional": "true"
- }
- },
- {
- "Name": "SetAttribute",
- "Params":
- {
- "Name": "CfqGroupIdle",
- "Value": "0",
- "Optional": "true"
- }
- },
- {
- "Name": "SetAttribute",
- "Params":
- {
- "Name": "CfqWeight",
- "Value": "200",
- "Optional": "true"
+ "Controller": "blkio",
+ "Path": "background"
}
}
]
@@ -489,30 +452,11 @@
"Name": "NormalIoPriority",
"Actions": [
{
- "Name": "SetAttribute",
+ "Name": "JoinCgroup",
"Params":
{
- "Name": "BfqWeight",
- "Value": "100",
- "Optional": "true"
- }
- },
- {
- "Name": "SetAttribute",
- "Params":
- {
- "Name": "CfqGroupIdle",
- "Value": "0",
- "Optional": "true"
- }
- },
- {
- "Name": "SetAttribute",
- "Params":
- {
- "Name": "CfqWeight",
- "Value": "1000",
- "Optional": "true"
+ "Controller": "blkio",
+ "Path": ""
}
}
]
@@ -521,30 +465,11 @@
"Name": "HighIoPriority",
"Actions": [
{
- "Name": "SetAttribute",
+ "Name": "JoinCgroup",
"Params":
{
- "Name": "BfqWeight",
- "Value": "100",
- "Optional": "true"
- }
- },
- {
- "Name": "SetAttribute",
- "Params":
- {
- "Name": "CfqGroupIdle",
- "Value": "0",
- "Optional": "true"
- }
- },
- {
- "Name": "SetAttribute",
- "Params":
- {
- "Name": "CfqWeight",
- "Value": "1000",
- "Optional": "true"
+ "Controller": "blkio",
+ "Path": ""
}
}
]
@@ -553,30 +478,11 @@
"Name": "MaxIoPriority",
"Actions": [
{
- "Name": "SetAttribute",
+ "Name": "JoinCgroup",
"Params":
{
- "Name": "BfqWeight",
- "Value": "100",
- "Optional": "true"
- }
- },
- {
- "Name": "SetAttribute",
- "Params":
- {
- "Name": "CfqGroupIdle",
- "Value": "0",
- "Optional": "true"
- }
- },
- {
- "Name": "SetAttribute",
- "Params":
- {
- "Name": "CfqWeight",
- "Value": "1000",
- "Optional": "true"
+ "Controller": "blkio",
+ "Path": ""
}
}
]
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 8f01d93..951934f 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -221,6 +221,26 @@
write /dev/stune/nnapi-hal/schedtune.boost 1
write /dev/stune/nnapi-hal/schedtune.prefer_idle 1
+ # Create blkio group and apply initial settings.
+ # This feature needs kernel to support it, and the
+ # device's init.rc must actually set the correct values.
+ mkdir /dev/blkio/background
+ chown system system /dev/blkio
+ chown system system /dev/blkio/background
+ chown system system /dev/blkio/tasks
+ chown system system /dev/blkio/background/tasks
+ chown system system /dev/blkio/cgroup.procs
+ chown system system /dev/blkio/background/cgroup.procs
+ chmod 0664 /dev/blkio/tasks
+ chmod 0664 /dev/blkio/background/tasks
+ chmod 0664 /dev/blkio/cgroup.procs
+ chmod 0664 /dev/blkio/background/cgroup.procs
+ write /dev/blkio/blkio.weight 1000
+ write /dev/blkio/background/blkio.weight 200
+ write /dev/blkio/background/blkio.bfq.weight 10
+ write /dev/blkio/blkio.group_idle 0
+ write /dev/blkio/background/blkio.group_idle 0
+
restorecon_recursive /mnt
mount configfs none /config nodev noexec nosuid