From: Paolo Bonzini <pbonzini@redhat.com>
To: Fam Zheng <famz@redhat.com>
Cc: borntraeger@de.ibm.com, qemu-devel@nongnu.org, stefanha@redhat.com
Subject: Re: [Qemu-devel] [PATCH 10/15] exec: RCUify AddressSpaceDispatch
Date: Tue, 03 Feb 2015 11:07:06 +0100 [thread overview]
Message-ID: <54D09DCA.4000006@redhat.com> (raw)
In-Reply-To: <20150128054515.GA10117@ad.nay.redhat.com>
On 28/01/2015 06:45, Fam Zheng wrote:
> If I understand it, this code doesn't hold iothread lock when releasing the
> memory region, but in one of the memroy region destructors,
> memory_region_destructor_ram_from_ptr:
>
> void qemu_ram_free_from_ptr(ram_addr_t addr)
> {
> RAMBlock *block;
>
> /* This assumes the iothread lock is taken here too. */
> qemu_mutex_lock_ramlist();
> QTAILQ_FOREACH(block, &ram_list.blocks, next) {
> ...
>
> Is the comment stale or I missed something?
No, you're right.
Paolo
next prev parent reply other threads:[~2015-02-03 10:07 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-22 14:47 [Qemu-devel] [PATCH v2 00/15] RCUification of the memory API, parts 1 and 2 Paolo Bonzini
2015-01-22 14:47 ` [Qemu-devel] [PATCH 01/15] rcu: add rcu library Paolo Bonzini
2015-01-26 3:13 ` Fam Zheng
2015-01-22 14:47 ` [Qemu-devel] [PATCH 02/15] rcu: add rcutorture Paolo Bonzini
2015-01-26 3:31 ` Fam Zheng
2015-01-22 14:47 ` [Qemu-devel] [PATCH 03/15] rcu: allow nesting of rcu_read_lock/rcu_read_unlock Paolo Bonzini
2015-01-26 3:32 ` Fam Zheng
2015-01-22 14:47 ` [Qemu-devel] [PATCH 04/15] rcu: add call_rcu Paolo Bonzini
2015-01-26 6:04 ` Fam Zheng
2015-01-22 14:47 ` [Qemu-devel] [PATCH 05/15] memory: remove assertion on memory_region_destroy Paolo Bonzini
2015-01-26 6:04 ` Fam Zheng
2015-01-22 14:47 ` [Qemu-devel] [PATCH 06/15] memory: protect current_map by RCU Paolo Bonzini
2015-01-26 6:16 ` Fam Zheng
2015-01-22 14:47 ` [Qemu-devel] [PATCH 07/15] memory: avoid ref/unref in memory_region_find Paolo Bonzini
2015-01-26 6:24 ` Fam Zheng
2015-01-26 9:19 ` Paolo Bonzini
2015-01-22 14:47 ` [Qemu-devel] [PATCH 08/15] exec: introduce cpu_reload_memory_map Paolo Bonzini
2015-01-22 14:47 ` [Qemu-devel] [PATCH 09/15] exec: make iotlb RCU-friendly Paolo Bonzini
2015-01-22 14:47 ` [Qemu-devel] [PATCH 10/15] exec: RCUify AddressSpaceDispatch Paolo Bonzini
2015-01-28 5:45 ` Fam Zheng
2015-01-28 9:44 ` Paolo Bonzini
2015-02-03 10:07 ` Paolo Bonzini [this message]
2015-01-22 14:47 ` [Qemu-devel] [PATCH 11/15] rcu: introduce RCU-enabled QLIST Paolo Bonzini
2015-01-22 14:47 ` [Qemu-devel] [PATCH 12/15] exec: protect mru_block with RCU Paolo Bonzini
2015-01-22 14:47 ` [Qemu-devel] [PATCH 13/15] cosmetic changes preparing for the following patches Paolo Bonzini
2015-01-22 14:47 ` [Qemu-devel] [PATCH 14/15] exec: convert ram_list to QLIST Paolo Bonzini
2015-01-22 14:47 ` [Qemu-devel] [PATCH 15/15] Convert ram_list to RCU Paolo Bonzini
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