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Commit 2633f816 authored by Florian Mayer's avatar Florian Mayer
Browse files

Expose filesystem read events in filesystem perms. 

Without this, we only have visibility into writes.

Looking at traces, we realised for many of the files we care about (.dex, .apk)
most filesystem events are actually reads.

See aosp/661781 for matching SELinux change.

Bug: 73625480

Change-Id: Ic4dbf4f0505a12de8b1ed133499813b6466c3cbe
parent df68da1c

cmds/atrace/atrace.rc

+10 −0
Original line number Diff line number Diff line
@@ -83,6 +83,10 @@ on post-fs 
    chmod 0666 /sys/kernel/tracing/events/lowmemorykiller/enable



    # disk

    chmod 0666 /sys/kernel/tracing/events/f2fs/f2fs_get_data_block/enable

    chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_get_data_block/enable

    chmod 0666 /sys/kernel/tracing/events/f2fs/f2fs_iget/enable

    chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_iget/enable

    chmod 0666 /sys/kernel/tracing/events/f2fs/f2fs_sync_file_enter/enable

    chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_sync_file_enter/enable

    chmod 0666 /sys/kernel/tracing/events/f2fs/f2fs_sync_file_exit/enable
@@ -95,6 +99,12 @@ on post-fs 
    chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_da_write_begin/enable

    chmod 0666 /sys/kernel/tracing/events/ext4/ext4_da_write_end/enable

    chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_da_write_end/enable

    chmod 0666 /sys/kernel/tracing/events/ext4/ext4_es_lookup_extent_enter/enable

    chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_es_lookup_extent_enter/enable

    chmod 0666 /sys/kernel/tracing/events/ext4/ext4_es_lookup_extent_exit/enable

    chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_es_lookup_extent_exit/enable

    chmod 0666 /sys/kernel/tracing/events/ext4/ext4_load_inode/enable

    chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_load_inode/enable

    chmod 0666 /sys/kernel/tracing/events/ext4/ext4_sync_file_enter/enable

    chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_sync_file_enter/enable

    chmod 0666 /sys/kernel/tracing/events/ext4/ext4_sync_file_exit/enable