| commit | 6c9076ec9cd448f43bbda871352a7067f456ee26 | |
| author | Ingo Molnar <mingo@elte.hu> | |
| Mon, 3 Jul 2006 07:24:51 +0000 (3 00:24 -0700) | ||
| committer | Linus Torvalds <torvalds@g5.osdl.org> | |
| Mon, 3 Jul 2006 22:27:04 +0000 (3 15:27 -0700) | ||
| tree | 8691366aa511f20146eb9cfe942e0d94c4136e1a | treesnapshot (tar.gz zip) |
| parent | fbb9ce9530fd9b66096d5187fa6a115d16d9746c | commitdiff |
[PATCH] lockdep: allow read_lock() recursion of same class
From: Ingo Molnar <mingo@elte.hu>
lockdep so far only allowed read-recursion for the same lock instance.
This is enough in the overwhelming majority of cases, but a hostap case
triggered and reported by Miles Lane relies on same-class
different-instance recursion. So we relax the restriction on read-lock
recursion.
(This change does not allow rwsem read-recursion, which is still
forbidden.)
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
From: Ingo Molnar <mingo@elte.hu>
lockdep so far only allowed read-recursion for the same lock instance.
This is enough in the overwhelming majority of cases, but a hostap case
triggered and reported by Miles Lane relies on same-class
different-instance recursion. So we relax the restriction on read-lock
recursion.
(This change does not allow rwsem read-recursion, which is still
forbidden.)
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| kernel/lockdep.c | diffblobblamehistory | |
| lib/locking-selftest.c | diffblobblamehistory |