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atrace: make fs-specific sysfs entries optional 

The availability of these sysfs entries will vary based on the kernel's
supported filesystems, so don't block the disk category if some of them
are missing.

Bug: 18467498

Change-Id: I96200f1b5cf3f1a8fa8186602552adc96ddffc04
Signed-off-by: Greg Hackmann <ghackmann@google.com>
This commit is contained in:
Greg Hackmann 2014-11-20 12:59:44 -08:00
parent 6b9454d1fe
commit e80d32c3c2
1 changed files with 8 additions and 8 deletions
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16
cmds/atrace/atrace.cpp
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@ -106,14 +106,14 @@ static const TracingCategory k_categories[] = {
{ REQ, "/sys/kernel/debug/tracing/events/power/cpu_idle/enable" },
} },
{ "disk", "Disk I/O", 0, {
{ REQ, "/sys/kernel/debug/tracing/events/f2fs/f2fs_sync_file_enter/enable" },
{ REQ, "/sys/kernel/debug/tracing/events/f2fs/f2fs_sync_file_exit/enable" },
{ REQ, "/sys/kernel/debug/tracing/events/f2fs/f2fs_write_begin/enable" },
{ REQ, "/sys/kernel/debug/tracing/events/f2fs/f2fs_write_end/enable" },
{ REQ, "/sys/kernel/debug/tracing/events/ext4/ext4_da_write_begin/enable" },
{ REQ, "/sys/kernel/debug/tracing/events/ext4/ext4_da_write_end/enable" },
{ REQ, "/sys/kernel/debug/tracing/events/ext4/ext4_sync_file_enter/enable" },
{ REQ, "/sys/kernel/debug/tracing/events/ext4/ext4_sync_file_exit/enable" },
{ OPT, "/sys/kernel/debug/tracing/events/f2fs/f2fs_sync_file_enter/enable" },
{ OPT, "/sys/kernel/debug/tracing/events/f2fs/f2fs_sync_file_exit/enable" },
{ OPT, "/sys/kernel/debug/tracing/events/f2fs/f2fs_write_begin/enable" },
{ OPT, "/sys/kernel/debug/tracing/events/f2fs/f2fs_write_end/enable" },
{ OPT, "/sys/kernel/debug/tracing/events/ext4/ext4_da_write_begin/enable" },
{ OPT, "/sys/kernel/debug/tracing/events/ext4/ext4_da_write_end/enable" },
{ OPT, "/sys/kernel/debug/tracing/events/ext4/ext4_sync_file_enter/enable" },
{ OPT, "/sys/kernel/debug/tracing/events/ext4/ext4_sync_file_exit/enable" },
{ REQ, "/sys/kernel/debug/tracing/events/block/block_rq_issue/enable" },
{ REQ, "/sys/kernel/debug/tracing/events/block/block_rq_complete/enable" },
} },