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| author | Yuyang Du <duyuyang@gmail.com> | 2019-05-06 16:19:22 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-06-03 11:55:41 +0200 |
| commit | d16dbd1b8a29bb9f8aca2c2f3bd1a0d2b7621126 (patch) | |
| tree | 17ce6db51ad493d0157743f54dbfa33e66f69518 | |
| parent | 834494b28024b39d45aea6bcc642b0fe94fe2503 (diff) | |
| download | linux-d16dbd1b8a29bb9f8aca2c2f3bd1a0d2b7621126.tar.bz2 | |
locking/lockdep: Update obsolete struct field description
The lock_chain struct definition has outdated comment, update it and add
struct member description.
Signed-off-by: Yuyang Du <duyuyang@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bvanassche@acm.org
Cc: frederic@kernel.org
Cc: ming.lei@redhat.com
Cc: will.deacon@arm.com
Link: https://lkml.kernel.org/r/20190506081939.74287-7-duyuyang@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | include/linux/lockdep.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h index 6e2377e6c1d6..851d44fa5457 100644 --- a/include/linux/lockdep.h +++ b/include/linux/lockdep.h @@ -203,11 +203,17 @@ struct lock_list { struct lock_list *parent; }; -/* - * We record lock dependency chains, so that we can cache them: +/** + * struct lock_chain - lock dependency chain record + * + * @irq_context: the same as irq_context in held_lock below + * @depth: the number of held locks in this chain + * @base: the index in chain_hlocks for this chain + * @entry: the collided lock chains in lock_chain hash list + * @chain_key: the hash key of this lock_chain */ struct lock_chain { - /* see BUILD_BUG_ON()s in lookup_chain_cache() */ + /* see BUILD_BUG_ON()s in add_chain_cache() */ unsigned int irq_context : 2, depth : 6, base : 24; |