search for: page_poison_en

Displaying 13 results from an estimated 13 matches for "page_poison_en".

2020 Apr 27
1
[PATCH v2] virtio-balloon: Disable free page reporting if page poison reporting is not enabled
...g makes sense, yes. And we inform it via the poison feature, if > possible. This discussion is about "what happens if the poison feature > is not there, but we do have want_init_on_free()." My preference is to err on the side of caution. I view want_init_on free() as equivalent to page_poison_enabled with CONFIG_PAGE_POISONING_ZERO and treated the same way. So if we are going to let one by then we would want to let the other by as well. > > want_init_on_free rather than not providing that information to QEMU. > > This way, if in the future we decide to change the implementatio...
2018 Jun 27
0
[PATCH v34 0/4] Virtio-balloon: support free page reporting
...omments to explain about access to cmd_id_received without > locks; > - add_one_sg: add TODO to comments about possible improvement. > v29->v30: > - mm/walk_free_mem_block: add cond_sched() for each order > v28->v29: > - mm/page_poison: only expose page_poison_enabled(), rather than more > changes did in v28, as we are not 100% confident about that for now. > - virtio-balloon: use a separate buffer for the stop cmd, instead of > having the start and stop cmd use the same buffer. This avoids the > corner case that the start...
2020 Apr 27
2
[PATCH v2] virtio-balloon: Disable free page reporting if page poison reporting is not enabled
On Mon, Apr 27, 2020 at 1:08 AM David Hildenbrand <david at redhat.com> wrote: > > On 24.04.20 18:24, Alexander Duyck wrote: > > From: Alexander Duyck <alexander.h.duyck at linux.intel.com> > > > > We should disable free page reporting if page poisoning is enabled in the > > kernel but we cannot report it via the balloon interface. This way we can >
2020 Apr 27
2
[PATCH v2] virtio-balloon: Disable free page reporting if page poison reporting is not enabled
On Mon, Apr 27, 2020 at 1:08 AM David Hildenbrand <david at redhat.com> wrote: > > On 24.04.20 18:24, Alexander Duyck wrote: > > From: Alexander Duyck <alexander.h.duyck at linux.intel.com> > > > > We should disable free page reporting if page poisoning is enabled in the > > kernel but we cannot report it via the balloon interface. This way we can >
2018 Jun 15
10
[PATCH v33 0/4] Virtio-balloon: support free page reporting
...host; and add more comments to explain about access to cmd_id_received without locks; - add_one_sg: add TODO to comments about possible improvement. v29->v30: - mm/walk_free_mem_block: add cond_sched() for each order v28->v29: - mm/page_poison: only expose page_poison_enabled(), rather than more changes did in v28, as we are not 100% confident about that for now. - virtio-balloon: use a separate buffer for the stop cmd, instead of having the start and stop cmd use the same buffer. This avoids the corner case that the start cmd is overridden by...
2018 Jun 15
10
[PATCH v33 0/4] Virtio-balloon: support free page reporting
...host; and add more comments to explain about access to cmd_id_received without locks; - add_one_sg: add TODO to comments about possible improvement. v29->v30: - mm/walk_free_mem_block: add cond_sched() for each order v28->v29: - mm/page_poison: only expose page_poison_enabled(), rather than more changes did in v28, as we are not 100% confident about that for now. - virtio-balloon: use a separate buffer for the stop cmd, instead of having the start and stop cmd use the same buffer. This avoids the corner case that the start cmd is overridden by...
2018 Apr 10
4
[PATCH v32 0/4] Virtio-balloon: support free page reporting
...host; and add more comments to explain about access to cmd_id_received without locks; - add_one_sg: add TODO to comments about possible improvement. v29->v30: - mm/walk_free_mem_block: add cond_sched() for each order v28->v29: - mm/page_poison: only expose page_poison_enabled(), rather than more changes did in v28, as we are not 100% confident about that for now. - virtio-balloon: use a separate buffer for the stop cmd, instead of having the start and stop cmd use the same buffer. This avoids the corner case that the start cmd is overridden by...
2018 Jun 25
9
[PATCH v34 0/4] Virtio-balloon: support free page reporting
...host; and add more comments to explain about access to cmd_id_received without locks; - add_one_sg: add TODO to comments about possible improvement. v29->v30: - mm/walk_free_mem_block: add cond_sched() for each order v28->v29: - mm/page_poison: only expose page_poison_enabled(), rather than more changes did in v28, as we are not 100% confident about that for now. - virtio-balloon: use a separate buffer for the stop cmd, instead of having the start and stop cmd use the same buffer. This avoids the corner case that the start cmd is overridden by...
2018 Jun 25
9
[PATCH v34 0/4] Virtio-balloon: support free page reporting
...host; and add more comments to explain about access to cmd_id_received without locks; - add_one_sg: add TODO to comments about possible improvement. v29->v30: - mm/walk_free_mem_block: add cond_sched() for each order v28->v29: - mm/page_poison: only expose page_poison_enabled(), rather than more changes did in v28, as we are not 100% confident about that for now. - virtio-balloon: use a separate buffer for the stop cmd, instead of having the start and stop cmd use the same buffer. This avoids the corner case that the start cmd is overridden by...
2018 Mar 26
7
[PATCH v29 0/4] Virtio-balloon: support free page reporting
...- Live Migration Time (average) Optimization v.s. Legacy = 1260ms v.s. 2634ms --> ~51% reduction - Linux Compilation Time Optimization v.s. Legacy = 4min58s v.s. 5min3s --> no obvious difference ChangeLog: v28->v29: - mm/page_poison: only expose page_poison_enabled(), rather than more changes did in v28, as we are not 100% confident about that for now. - virtio-balloon: use a separate buffer for the stop cmd, instead of having the start and stop cmd use the same buffer. This avoids the corner case that the start cmd is overridden by...
2018 Apr 03
5
[PATCH v30 0/4] Virtio-balloon: support free page reporting
...ms v.s. 2634ms --> ~51% reduction - Linux Compilation Time Optimization v.s. Legacy = 4min56s v.s. 5min3s --> no obvious difference ChangeLog: v29->v30: - mm/walk_free_mem_block: add cond_sched() for each order v28->v29: - mm/page_poison: only expose page_poison_enabled(), rather than more changes did in v28, as we are not 100% confident about that for now. - virtio-balloon: use a separate buffer for the stop cmd, instead of having the start and stop cmd use the same buffer. This avoids the corner case that the start cmd is overridden by...
2018 Apr 06
5
[PATCH v31 0/4] Virtio-balloon: support free page reporting
...host; and add more comments to explain about access to cmd_id_received without locks - add_one_sg: add TODO to comments about possible improvement. v29->v30: - mm/walk_free_mem_block: add cond_sched() for each order v28->v29: - mm/page_poison: only expose page_poison_enabled(), rather than more changes did in v28, as we are not 100% confident about that for now. - virtio-balloon: use a separate buffer for the stop cmd, instead of having the start and stop cmd use the same buffer. This avoids the corner case that the start cmd is overridden by...
2018 Jul 10
7
[PATCH v35 0/5] Virtio-balloon: support free page reporting
...host; and add more comments to explain about access to cmd_id_received without locks; - add_one_sg: add TODO to comments about possible improvement. v29->v30: - mm/walk_free_mem_block: add cond_sched() for each order v28->v29: - mm/page_poison: only expose page_poison_enabled(), rather than more changes did in v28, as we are not 100% confident about that for now. - virtio-balloon: use a separate buffer for the stop cmd, instead of having the start and stop cmd use the same buffer. This avoids the corner case that the start cmd is overridden by...