[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 1/2] gnttab: Introduce rwlock to protect updates to grant table state
On 2014/12/02 13:35, Julien Grall wrote: > Hi Christoph, > > On 02/12/14 10:06, Christoph Egger wrote: >> diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c >> index 522c43d..37c13b1 100644 >> --- a/xen/arch/x86/mm.c >> +++ b/xen/arch/x86/mm.c >> @@ -4565,7 +4565,7 @@ int xenmem_add_to_physmap_one( >> mfn = virt_to_mfn(d->shared_info); >> break; >> case XENMAPSPACE_grant_table: >> - spin_lock(&d->grant_table->lock); >> + write_lock(&d->grant_table->lock); >> >> if ( d->grant_table->gt_version == 0 ) >> d->grant_table->gt_version = 1; >> @@ -4587,7 +4587,7 @@ int xenmem_add_to_physmap_one( >> mfn = virt_to_mfn(d->grant_table->shared_raw[idx]); >> } >> >> - spin_unlock(&d->grant_table->lock); >> + write_unlock(&d->grant_table->lock); >> break; >> case XENMAPSPACE_gmfn_range: >> case XENMAPSPACE_gmfn: > > You forgot to modify the ARM bits which is using the spinlock. See > arch/arm/mm.c I can do the change. But I don't have ARM hardware nor the build infrastructure. I need your help with compiling and testing on/for ARM. Alternatively you can send me a patch I can add to or squash into my patch series. Christoph _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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