From: Kent Overstreet <kent.overstreet@linux.dev>
To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
linux-fsdevel@vger.kernel.org
Cc: Kent Overstreet <kent.overstreet@linux.dev>,
peterz@infradead.org, boqun.feng@gmail.com
Subject: [PATCH 0/4] lockdep cmp fn conversions
Date: Fri, 26 Jan 2024 21:08:27 -0500 [thread overview]
Message-ID: <20240127020833.487907-1-kent.overstreet@linux.dev> (raw)
rationale:
*_lock_nested() is fundamentally broken - in order for lockdep to work
we need to be able to check that we're following some defined ordering,
and it's not possible to define a total ordering of an arbitrary number
of objects with only a small fixed size enum.
so it needs to go. awhile back I added the ability to set a comparison
function for a lock class, and this is the start of hopefully a slow
steady trickle of patches as time allows to convert code to use it.
Kent Overstreet (4):
fs/pipe: Convert to lockdep_cmp_fn
pktcdvd: kill mutex_lock_nested() usage
net: Convert sk->sk_peer_lock to lock_set_cmp_fn_ptr_order()
af_unix: convert to lock_cmp_fn
drivers/block/pktcdvd.c | 8 ++---
fs/pipe.c | 77 ++++++++++++++++------------------------
include/linux/lockdep.h | 3 ++
include/net/af_unix.h | 3 --
kernel/locking/lockdep.c | 6 ++++
net/core/sock.c | 1 +
net/unix/af_unix.c | 24 ++++++-------
net/unix/diag.c | 2 +-
8 files changed, 55 insertions(+), 69 deletions(-)
--
2.43.0
next reply other threads:[~2024-01-27 2:08 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-27 2:08 Kent Overstreet [this message]
2024-01-27 2:08 ` [PATCH 1/4] fs/pipe: Convert to lockdep_cmp_fn Kent Overstreet
2024-02-02 12:03 ` Jan Kara
2024-02-02 12:25 ` Sedat Dilek
2024-02-05 9:53 ` Jan Kara
2024-02-05 9:59 ` Sedat Dilek
2024-02-02 12:47 ` Kent Overstreet
2024-02-05 10:09 ` Jan Kara
2024-01-27 2:08 ` [PATCH 2/4] pktcdvd: kill mutex_lock_nested() usage Kent Overstreet
2024-01-28 4:29 ` kernel test robot
2024-01-28 6:48 ` kernel test robot
2024-01-27 2:08 ` [PATCH 3/4] net: Convert sk->sk_peer_lock to lock_set_cmp_fn_ptr_order() Kent Overstreet
2024-01-28 9:17 ` Kuniyuki Iwashima
2024-01-27 2:08 ` [PATCH 4/4] af_unix: convert to lock_cmp_fn Kent Overstreet
2024-01-28 8:28 ` Kuniyuki Iwashima
2024-01-28 19:38 ` Kent Overstreet
2024-01-28 20:56 ` Kuniyuki Iwashima
2024-01-29 1:34 ` Kent Overstreet
-- strict thread matches above, loose matches on Subject: below --
2024-01-27 2:01 [PATCH 0/4] lockdep cmp fn conversions Kent Overstreet
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