search for: pv_spinlock

...7 04:58 PM, Waiman Long wrote: > +/* TODO: To be removed in a future kernel version */ > static __init int xen_parse_nopvspin(char *arg) > { > - xen_pvspin = false; > + pr_warn("xen_nopvspin is deprecated, replace it with \"pvlock_type=queued\"!\n"); > + if (!pv_spinlock_type) > + pv_spinlock_type = locktype_queued; Since we currently end up using unfair locks and because you are deprecating xen_nopvspin I wonder whether it would be better to set this to locktype_unfair so that current behavior doesn't change. (Sorry, I haven't responded to your earlie...

...7 04:58 PM, Waiman Long wrote: > +/* TODO: To be removed in a future kernel version */ > static __init int xen_parse_nopvspin(char *arg) > { > - xen_pvspin = false; > + pr_warn("xen_nopvspin is deprecated, replace it with \"pvlock_type=queued\"!\n"); > + if (!pv_spinlock_type) > + pv_spinlock_type = locktype_queued; Since we currently end up using unfair locks and because you are deprecating xen_nopvspin I wonder whether it would be better to set this to locktype_unfair so that current behavior doesn't change. (Sorry, I haven't responded to your earlie...

...wrote: >> +/* TODO: To be removed in a future kernel version */ >> static __init int xen_parse_nopvspin(char *arg) >> { >> - xen_pvspin = false; >> + pr_warn("xen_nopvspin is deprecated, replace it with \"pvlock_type=queued\"!\n"); >> + if (!pv_spinlock_type) >> + pv_spinlock_type = locktype_queued; > Since we currently end up using unfair locks and because you are > deprecating xen_nopvspin I wonder whether it would be better to set this > to locktype_unfair so that current behavior doesn't change. (Sorry, I > haven't r...

v1->v2: - Make pv_spinlock_type a bit mask for easier checking. - Add patch 2 to deprecate xen_nopvspin v1 - https://lkml.org/lkml/2017/11/1/381 Patch 1 adds a new pvlock_type parameter for the administrators to specify the type of lock to be used in a para-virtualized kernel. Patch 2 deprecates Xen's xen_nopvspin pa...

v1->v2: - Make pv_spinlock_type a bit mask for easier checking. - Add patch 2 to deprecate xen_nopvspin v1 - https://lkml.org/lkml/2017/11/1/381 Patch 1 adds a new pvlock_type parameter for the administrators to specify the type of lock to be used in a para-virtualized kernel. Patch 2 deprecates Xen's xen_nopvspin pa...