diff options
| author | Marco Elver <elver@google.com> | 2021-09-07 19:56:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-09-08 11:50:24 -0700 |
| commit | 4bbf04aa9aa88ae41205e387d35743a9bf5e933d (patch) | |
| tree | a1ecd87116814143015200c912623f34311ebe82 /mm/kfence/kfence.h | |
| parent | 110860541f443f950c1274f217a1a3e298670a33 (diff) | |
kfence: show cpu and timestamp in alloc/free info
Record cpu and timestamp on allocations and frees, and show them in
reports. Upon an error, this can help correlate earlier messages in the
kernel log via allocation and free timestamps.
Link: https://lkml.kernel.org/r/20210714175312.2947941-1-elver@google.com
Suggested-by: Joern Engel <joern@purestorage.com>
Signed-off-by: Marco Elver <elver@google.com>
Acked-by: Alexander Potapenko <glider@google.com>
Acked-by: Joern Engel <joern@purestorage.com>
Cc: Yuanyuan Zhong <yzhong@purestorage.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/kfence/kfence.h')
| -rw-r--r-- | mm/kfence/kfence.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/kfence/kfence.h b/mm/kfence/kfence.h index 24065321ff8a..c1f23c61e5f9 100644 --- a/mm/kfence/kfence.h +++ b/mm/kfence/kfence.h @@ -36,6 +36,8 @@ enum kfence_object_state { /* Alloc/free tracking information. */ struct kfence_track { pid_t pid; + int cpu; + u64 ts_nsec; int num_stack_entries; unsigned long stack_entries[KFENCE_STACK_DEPTH]; }; |