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Re: [Qemu-devel] [PATCH 2/8] exec: move rcu_read_lock/unlock to address_
From: |
Jan Kiszka |
Subject: |
Re: [Qemu-devel] [PATCH 2/8] exec: move rcu_read_lock/unlock to address_space_translate callers |
Date: |
Thu, 19 Mar 2015 14:27:36 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
On 2015-03-18 14:21, Paolo Bonzini wrote:
> @@ -2591,9 +2596,12 @@ void *address_space_map(AddressSpace *as,
> }
>
> l = len;
> + rcu_read_lock();
> mr = address_space_translate(as, addr, &xlat, &l, is_write);
> +
> if (!memory_access_is_direct(mr, is_write)) {
> if (atomic_xchg(&bounce.in_use, true)) {
Doesn't apply due to differences in the line above.
What is this patch based on? Do you have a public branch where I can
find the series and its dependencies?
> + rcu_read_unlock();
> return NULL;
> }
> /* Avoid unbounded allocations */
Jan
--
Siemens AG, Corporate Technology, CT RTC ITP SES-DE
Corporate Competence Center Embedded Linux
- [Qemu-devel] [PATCH for-2.4 0/8] memory: enable unlocked PIO/MMIO in KVM, Paolo Bonzini, 2015/03/18
- [Qemu-devel] [PATCH 4/8] kvm: First step to push iothread lock out of inner run loop, Paolo Bonzini, 2015/03/18
- [Qemu-devel] [PATCH 6/8] exec: mark unassigned_io_ops as unlocked, Paolo Bonzini, 2015/03/18
- [Qemu-devel] [PATCH 7/8] acpi: mark PMTIMER as unlocked, Paolo Bonzini, 2015/03/18
- [Qemu-devel] [PATCH 5/8] kvm: Switch to unlocked PIO, Paolo Bonzini, 2015/03/18
- [Qemu-devel] [PATCH 8/8] kvm: Switch to unlocked MMIO, Paolo Bonzini, 2015/03/18
- Re: [Qemu-devel] [PATCH for-2.4 0/8] memory: enable unlocked PIO/MMIO in KVM, Jan Kiszka, 2015/03/18