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| author | Qu Wenruo <wqu@suse.com> | 2019-10-17 10:38:37 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-29 09:20:07 +0100 |
| commit | 0b95aaae783fa422bc213337de29b710898ff8ec (patch) | |
| tree | 0f55003aa6fb7fd3cdd879c315f77374e67179e6 /scripts/gcc-plugins/sancov_plugin.c | |
| parent | 1b921b5bc47f33bb99189a8141d31e49528571d5 (diff) | |
btrfs: tracepoints: Fix bad entry members of qgroup events
commit 1b2442b4ae0f234daeadd90e153b466332c466d8 upstream.
[BUG]
For btrfs:qgroup_meta_reserve event, the trace event can output garbage:
qgroup_meta_reserve: 9c7f6acc-b342-4037-bc47-7f6e4d2232d7: refroot=5(FS_TREE) type=DATA diff=2
qgroup_meta_reserve: 9c7f6acc-b342-4037-bc47-7f6e4d2232d7: refroot=5(FS_TREE) type=0x258792 diff=2
The @type can be completely garbage, as DATA type is not possible for
trace_qgroup_meta_reserve() trace event.
[CAUSE]
Ther are several problems related to qgroup trace events:
- Unassigned entry member
Member entry::type of trace_qgroup_update_reserve() and
trace_qgourp_meta_reserve() is not assigned
- Redundant entry member
Member entry::type is completely useless in
trace_qgroup_meta_convert()
Fixes: 4ee0d8832c2e ("btrfs: qgroup: Update trace events for metadata reservation")
CC: stable@vger.kernel.org # 4.10+
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/gcc-plugins/sancov_plugin.c')
0 files changed, 0 insertions, 0 deletions