search for: d6abfdb20223

...which would cause horraneous > >>> Compiler warnings (Linus, David Vbriel, PeterZ, Ingo) > >> > >>What is the git commit id of this in Linus's tree? What > >>stable tree(s) do you want this applied to? > > > >It's: > > > > d6abfdb20223 x86/spinlocks/paravirt: Fix memory corruption on unlock > > Yes, This is the original patch. Please note I have taken out the > READ_ONCE changes from the original patch to avoid build warnings > mentioned below. > (Those READ_ONCE changes were cosmetic and was not present in the &g...

...which would cause horraneous > >>> Compiler warnings (Linus, David Vbriel, PeterZ, Ingo) > >> > >>What is the git commit id of this in Linus's tree? What > >>stable tree(s) do you want this applied to? > > > >It's: > > > > d6abfdb20223 x86/spinlocks/paravirt: Fix memory corruption on unlock > > Yes, This is the original patch. Please note I have taken out the > READ_ONCE changes from the original patch to avoid build warnings > mentioned below. > (Those READ_ONCE changes were cosmetic and was not present in the &g...

Am 25.02.2015 um 11:08 schrieb Ingo Molnar: > > * Greg KH <gregkh at linuxfoundation.org> wrote: > >>>> It's: >>>> >>>> d6abfdb20223 x86/spinlocks/paravirt: Fix memory corruption on unlock >>> >>> Yes, This is the original patch. Please note I have taken out the >>> READ_ONCE changes from the original patch to avoid build warnings >>> mentioned below. >>> (Those READ_ONCE changes were...

Am 25.02.2015 um 11:08 schrieb Ingo Molnar: > > * Greg KH <gregkh at linuxfoundation.org> wrote: > >>>> It's: >>>> >>>> d6abfdb20223 x86/spinlocks/paravirt: Fix memory corruption on unlock >>> >>> Yes, This is the original patch. Please note I have taken out the >>> READ_ONCE changes from the original patch to avoid build warnings >>> mentioned below. >>> (Those READ_ONCE changes were...

* Greg KH <gregkh at linuxfoundation.org> wrote: > > >It's: > > > > > > d6abfdb20223 x86/spinlocks/paravirt: Fix memory corruption on unlock > > > > Yes, This is the original patch. Please note I have taken out the > > READ_ONCE changes from the original patch to avoid build warnings > > mentioned below. > > (Those READ_ONCE changes were cosmetic and...

* Greg KH <gregkh at linuxfoundation.org> wrote: > > >It's: > > > > > > d6abfdb20223 x86/spinlocks/paravirt: Fix memory corruption on unlock > > > > Yes, This is the original patch. Please note I have taken out the > > READ_ONCE changes from the original patch to avoid build warnings > > mentioned below. > > (Those READ_ONCE changes were cosmetic and...

...table: > > - Don't replace the ACCESS_ONCE to READ_ONCE which would cause horraneous > > Compiler warnings (Linus, David Vbriel, PeterZ, Ingo) > > What is the git commit id of this in Linus's tree? What > stable tree(s) do you want this applied to? It's: d6abfdb20223 x86/spinlocks/paravirt: Fix memory corruption on unlock You'll also need this fix from Linus to avoid (harmless) build warnings: dd36929720f4 kernel: make READ_ONCE() valid on const arguments Thanks, Ingo

...table: > > - Don't replace the ACCESS_ONCE to READ_ONCE which would cause horraneous > > Compiler warnings (Linus, David Vbriel, PeterZ, Ingo) > > What is the git commit id of this in Linus's tree? What > stable tree(s) do you want this applied to? It's: d6abfdb20223 x86/spinlocks/paravirt: Fix memory corruption on unlock You'll also need this fix from Linus to avoid (harmless) build warnings: dd36929720f4 kernel: make READ_ONCE() valid on const arguments Thanks, Ingo

...he ACCESS_ONCE to READ_ONCE which would cause horraneous > > > Compiler warnings (Linus, David Vbriel, PeterZ, Ingo) > > > > What is the git commit id of this in Linus's tree? What > > stable tree(s) do you want this applied to? > > It's: > > d6abfdb20223 x86/spinlocks/paravirt: Fix memory corruption on unlock > > You'll also need this fix from Linus to avoid (harmless) > build warnings: > > dd36929720f4 kernel: make READ_ONCE() valid on const arguments Great. But what stable kernel trees should it be backported to? Just 3....

...he ACCESS_ONCE to READ_ONCE which would cause horraneous > > > Compiler warnings (Linus, David Vbriel, PeterZ, Ingo) > > > > What is the git commit id of this in Linus's tree? What > > stable tree(s) do you want this applied to? > > It's: > > d6abfdb20223 x86/spinlocks/paravirt: Fix memory corruption on unlock > > You'll also need this fix from Linus to avoid (harmless) > build warnings: > > dd36929720f4 kernel: make READ_ONCE() valid on const arguments Great. But what stable kernel trees should it be backported to? Just 3....

...place the ACCESS_ONCE to READ_ONCE which would cause horraneous >>> Compiler warnings (Linus, David Vbriel, PeterZ, Ingo) >> >> What is the git commit id of this in Linus's tree? What >> stable tree(s) do you want this applied to? > > It's: > > d6abfdb20223 x86/spinlocks/paravirt: Fix memory corruption on unlock Yes, This is the original patch. Please note I have taken out the READ_ONCE changes from the original patch to avoid build warnings mentioned below. (Those READ_ONCE changes were cosmetic and was not present in the previous versions) > &g...

...place the ACCESS_ONCE to READ_ONCE which would cause horraneous >>> Compiler warnings (Linus, David Vbriel, PeterZ, Ingo) >> >> What is the git commit id of this in Linus's tree? What >> stable tree(s) do you want this applied to? > > It's: > > d6abfdb20223 x86/spinlocks/paravirt: Fix memory corruption on unlock Yes, This is the original patch. Please note I have taken out the READ_ONCE changes from the original patch to avoid build warnings mentioned below. (Those READ_ONCE changes were cosmetic and was not present in the previous versions) > &g...

Paravirt spinlock clears slowpath flag after doing unlock. As explained by Linus currently it does: prev = *lock; add_smp(&lock->tickets.head, TICKET_LOCK_INC); /* add_smp() is a full mb() */ if (unlikely(lock->tickets.tail & TICKET_SLOWPATH_FLAG)) __ticket_unlock_slowpath(lock, prev); which is

Paravirt spinlock clears slowpath flag after doing unlock. As explained by Linus currently it does: prev = *lock; add_smp(&lock->tickets.head, TICKET_LOCK_INC); /* add_smp() is a full mb() */ if (unlikely(lock->tickets.tail & TICKET_SLOWPATH_FLAG)) __ticket_unlock_slowpath(lock, prev); which is