diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2026-09-16 18:46:40 +1000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2026-09-23 18:38:39 +1000 |
| commit | 9fa551ef513777ffca5583d2f9ff8f7d9da3e7ed (patch) | |
| tree | 21a83217d8b635a815bbe204ad0e430426589b07 /include/linux/rhashtable.h | |
| parent | eeaf1ccd4c05d9c6ad67345862b36670e8e4dfc2 (diff) | |
rhashtable: Use separate lockdep keys for each lock
Use separate lockdep keys for the different types of locks in
rhashtable (mutex, spin lock, and bucket locks). They are
separate and not normally nested with respect to each other.
Also move the rhashtable_init/rhltable_init kdoc to the header
file as that's where the macros are defined.
Fixes: 4333ab90aaae ("rhashtable: use private lockdep class for all locks.")
Reported-by: syzbot+4d0e4d2db6dfde01b52f@syzkaller.appspotmail.com
Assisted-by: Gemini:gemini-3.6-flash
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: NeilBrown <neil@brown.name>
Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/linux/rhashtable.h')
| -rw-r--r-- | include/linux/rhashtable.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h index 6c5e6d9accba..ec853c1b9af3 100644 --- a/include/linux/rhashtable.h +++ b/include/linux/rhashtable.h @@ -328,8 +328,7 @@ static inline unsigned long rht_lock_nested(struct bucket_table *tbl, local_irq_save(flags); bit_spin_lock(0, (unsigned long *)bucket); - /* subclass 0 is used for ->lock and 1 for ->mutex. 2+ for bitlocks */ - lock_acquire_exclusive(&tbl->dep_map, subclass+2, 0, NULL, _THIS_IP_); + lock_acquire_exclusive(&tbl->dep_map, subclass, 0, NULL, _THIS_IP_); return flags; } |