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| author | Mark Salyzyn <salyzyn@google.com> | 2019-03-13 10:18:24 -0700 |
|---|---|---|
| committer | Mark Salyzyn <salyzyn@google.com> | 2019-03-15 11:54:38 -0700 |
| commit | a73ed22cb7d2fec0b330401b764fa8c9b934d0da (patch) | |
| tree | 6e32ba0b5e995fb7ef238e73a737de8347c9b43d /libcutils/sockets_unix.cpp | |
| parent | 0e5b74deff69312063e9f71d3b62f1f806b29526 (diff) | |
init: add MountHandler property handler
Set properties dev.mnt.blk.<mount_point>=<device_block_class> for mount
and umount operations by setting up an Epoll handler to catch
EPOLLERR or EPOLLPRI signals when /proc/mounts is changed. Only
update properties associated with block devices. For the mount
point of /, use the designation of /root instead.
Can use the properties in init rc expansion like:
on property dev.mnt.blk.root=*
write /sys/block/${dev.mnt.blk.root}/queue/read_ahead_kb ${boot_read_ahead_kb:-2048}
on property dev.mnt.blk.data=*
write /sys/block/${dev.mnt.blk.data}/queue/read_ahead_kb ${boot_read_ahead_kb:-2048}
on late-fs
setprop boot_read_ahead_kb 128
write /sys/block/${dev.mnt.blk.root}/queue/read_ahead_kb ${boot_read_ahead_kb}
write /sys/block/${dev.mnt.blk.data}/queue/read_ahead_kb ${boot_read_ahead_kb}
Test: boot and inspect getprop results.
Bug: 124072565
Change-Id: I1b8aff44f922ba372cd926de2919c215c40ee874
Diffstat (limited to 'libcutils/sockets_unix.cpp')
0 files changed, 0 insertions, 0 deletions