retrieves the number of pages migrated due to compaction for
> the whole time of this pool's existence and the third one returns
> the huge class size.
>
> This API extension is done to align zpool API with zsmalloc API.
>
> Signed-off-by: Vitaly Wool
Seems reasonable to me.
On Fri, Oct 11, 2019 at 7:40 PM Maciej S. Szmigiero
wrote:
>
> The compressed cache for swap pages (zswap) currently needs from 1 to 3
> extra kernel command line parameters in order to make it work: it has to be
> enabled by adding a "zswap.enabled=1" command line parameter and if one
> wants a d
On Tue, Oct 8, 2019 at 4:07 AM Hui Zhu wrote:
>
> This is the fourth version of this patch. The perious versions
> are in [1], [2] and [3].
>
> The parameters read_in_flight_limit and write_in_flight_limit were
> replaced by io_switch_enabled_enabled in this verion to make this
> function more cl
On Fri, Sep 27, 2019 at 2:19 PM Greg Kroah-Hartman
wrote:
>
> On Fri, Sep 27, 2019 at 09:04:02AM -0400, Dan Streetman wrote:
> > The dummy vio_bus_device creates the /sys/devices/vio directory, which
> > contains real vio devices under it; since it represents itself a
On Sat, Sep 28, 2019 at 3:41 AM Greg Kroah-Hartman
wrote:
>
> On Fri, Sep 27, 2019 at 03:48:49PM -0400, Dan Streetman wrote:
> > On Fri, Sep 27, 2019 at 2:19 PM Greg Kroah-Hartman
> > wrote:
> > >
> > > On Fri, Sep 27, 2019 at 09:04:02AM -0400, Da
On Fri, Sep 27, 2019 at 2:19 PM Greg Kroah-Hartman
wrote:
>
> On Fri, Sep 27, 2019 at 09:04:02AM -0400, Dan Streetman wrote:
> > The dummy vio_bus_device creates the /sys/devices/vio directory, which
> > contains real vio devices under it; since it represents itself a
do nothing and return 0.
Signed-off-by: Dan Streetman
---
arch/powerpc/platforms/pseries/vio.c | 11 ---
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/vio.c
b/arch/powerpc/platforms/pseries/vio.c
index 79e2287991db..63bc16631680 100644
---
On Mon, Sep 23, 2019 at 4:14 PM Dan Streetman wrote:
>
> On Sun, Sep 22, 2019 at 11:32 PM Hui Zhu wrote:
> >
> > This is the third version of this patch. The first and second version
> > is in [1] and [2].
> > This verion is updated according to the commen
On Sun, Sep 22, 2019 at 11:32 PM Hui Zhu wrote:
>
> This is the third version of this patch. The first and second version
> is in [1] and [2].
> This verion is updated according to the comments from Randy Dunlap
> in [3].
>
> Currently, I use a VM that has 2 CPUs, 4G memory and 4G swap file.
> I
it slows things down for z3fold.
>
> Since there's hardly a point in unmapping a handle _that_ fast as
> zswap_writeback_entry() does when it reads swpentry, the
> suggestion is to keep the handle mapped till the end.
LGTM
>
> Signed-off-by: Vitaly Wool
Reviewed-by: D
43916 usecs = 503280 KB/s
> 79386 usecs to free memory
> 2415919104 bytes / 20136015 usecs = 117167 KB/s
> 4411 usecs to free memory
> 1207959552 bytes / 1833403 usecs = 643419 KB/s
> 70452 usecs to free memory
> ...
> killall usemem
> ./usemem -a -n 1 $((7 * 1024 *
On Wed, Aug 28, 2019 at 1:59 PM Ville Syrjälä
wrote:
>
> On Wed, Aug 28, 2019 at 08:50:51PM +0300, Ville Syrjälä wrote:
> > On Wed, Aug 28, 2019 at 01:34:07PM -0400, Dan Streetman wrote:
> > > It looks like this patch got lost at some point:
> > > https://lore.ker
It looks like this patch got lost at some point:
https://lore.kernel.org/patchwork/patch/902126/#1138115
but it seems to still be a problem and I'd like to pull it into Ubuntu:
https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1759836
Ville, did you ever follow up with a v2 for that patch and/
On Tue, Jan 29, 2019 at 3:33 PM Greg Kroah-Hartman
wrote:
>
> On Tue, Jan 29, 2019 at 02:46:30PM -0500, Dan Streetman wrote:
> > On Tue, Jan 22, 2019 at 10:23 AM Greg Kroah-Hartman
> > wrote:
> > >
> > > When calling debugfs functions, there is no need to eve
On Tue, Jan 22, 2019 at 10:23 AM Greg Kroah-Hartman
wrote:
>
> When calling debugfs functions, there is no need to ever check the
> return value. The function can work or not, but the code logic should
> never do something different based on this.
>
> Cc: Seth Jennings
> Cc
On Thu, Sep 27, 2018 at 5:15 PM Alex Xu (Hello71) wrote:
>
> Spinlocks are always lockable on UP systems, even if they were just
> locked.
>
> Cc: Dan Streetman
I cc'ed Vitaly also, as this code is from him, but the change
certainly looks correct to me.
Acked-by: Dan Stre
On Thu, Sep 27, 2018 at 4:27 PM Alex Xu (Hello71) wrote:
>
> Spinlocks are always lockable on UP systems, even if they were just
> locked.
i think it would be much better to just use either
assert_spin_locked() or just spin_is_locked(), instead of an #ifdef.
>
> Cc: Dan Streetma
On Mon, Jun 25, 2018 at 4:08 AM Li Wang wrote:
>
> On 30 May 2018 at 20:53, Dan Streetman wrote:
> > On Wed, May 30, 2018 at 6:39 AM, Li Wang wrote:
> >> The '/sys/../zswap/stored_pages:' keep raising in zswap test with
> >> "zswap.max_pool_perce
w under the max_pool_percent, and
> not to compress/store if reach its limitaion.
>
> Signed-off-by: Li Wang
Acked-by: Dan Streetman
> Cc: Seth Jennings
> Cc: Dan Streetman
> Cc: Huang Ying
> Cc: Yu Zhao
> ---
> mm/zswap.c | 9 +
> 1 file changed, 9 in
On Tue, May 29, 2018 at 10:57 PM, Li Wang wrote:
> Hi Dan,
>
> On Wed, May 30, 2018 at 5:14 AM, Dan Streetman wrote:
>>
>> On Thu, May 24, 2018 at 5:57 AM, Li Wang wrote:
>> > The '/sys/../zswap/stored_pages:' keep raising in zswap test with
>&g
nother page,
without re-checking zswap_is_full(). If you're trying to fix that,
then I would ack a patch that adds a second zswap_is_full() check
after zswap_shrink() to make sure it's now under the max_pool_percent
(or somehow otherwise fixes that behavior).
>
> Signed-off-by: Li
On Fri, May 11, 2018 at 5:19 AM, Dmitry Vyukov wrote:
> On Thu, May 10, 2018 at 12:23 PM, Dan Streetman wrote:
>>>>>>>> wrote:
>>>>>>>>> On 20.02.2018 18:26, Neil Horman wrote:
>>>>>>>>>>
>>>>>
On Thu, May 10, 2018 at 2:46 AM, Dmitry Vyukov wrote:
> On Mon, Apr 16, 2018 at 9:42 PM, Dan Streetman wrote:
>>>>>> On Wed, Feb 21, 2018 at 3:53 PM, Tommi Rantala
>>>>>> wrote:
>>>>>>> On 20.02.2018 18:26, Neil Horman wrote:
>&g
On Mon, Apr 16, 2018 at 3:35 AM, Dmitry Vyukov wrote:
> On Fri, Apr 13, 2018 at 5:54 PM, Dmitry Vyukov wrote:
>> On Fri, Apr 13, 2018 at 2:43 PM, Dan Streetman wrote:
>>> On Thu, Apr 12, 2018 at 8:15 AM, Dmitry Vyukov wrote:
>>>> On Wed, Feb 21, 2018 at 3:53
On Thu, Apr 12, 2018 at 8:15 AM, Dmitry Vyukov wrote:
> On Wed, Feb 21, 2018 at 3:53 PM, Tommi Rantala
> wrote:
>> On 20.02.2018 18:26, Neil Horman wrote:
>>>
>>> On Tue, Feb 20, 2018 at 09:14:41AM +0100, Dmitry Vyukov wrote:
On Tue, Feb 20, 2018 at 8:56 AM, Tommi Rantala
wrote:
>
d-off-by: Markus Elfring
Reviewed-by: Dan Streetman
> ---
> drivers/crypto/nx/nx-842-pseries.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/crypto/nx/nx-842-pseries.c
> b/drivers/crypto/nx/nx-842-pseries.c
> index bf52cd1d7fca..6686997
age is saved. After swapping
> > > in, tail pages will not be restored to its original contents, so cause
> > > the memory corruption in the applications.
> > >
> > > This is fixed via splitting THP before writing the page to swap device
> > > if
i?id=97811
Signed-off-by: Dan Streetman
---
include/net/net_namespace.h | 10 ++
net/ipv4/tcp.c | 3 +++
net/ipv4/tcp_timer.c| 15 +++
3 files changed, 28 insertions(+)
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index f8
> + zpool->evictable = driver->shrink && ops && ops->evict;
Since the ops->evict comes from zswap (and is never omitted), if we do
restore zs_zpool_shrink() in the future to call the zsmalloc shrinker
(and not do eviction), we'll have to add a driv
On Tue, Jan 9, 2018 at 5:47 PM, Yu Zhao wrote:
> On Tue, Jan 09, 2018 at 01:25:18PM -0500, Dan Streetman wrote:
>> On Mon, Jan 8, 2018 at 5:51 PM, Yu Zhao wrote:
>> > We waste sizeof(swp_entry_t) for zswap header when using zsmalloc
>> > as zpool driver because zsmall
include the header info that
zswap_writeback_entry (i.e. ops->evict) later needs, so yeah it does
make more sense to call it zpool_evictable() and zpool->evictable.
However, I think the function should still be zpool_shrink() and
zpool->driver->shrink(), because it should be possible for
On Tue, Jan 2, 2018 at 5:03 AM, Joey Pabalinas wrote:
> `zwap_has_pool` is a simple boolean, so it should be tested first
> to avoid unnecessarily calling `strcmp()`. Test `zswap_has_pool`
> first to take advantage of the short-circuiting behavior of && in
> `__zswap_param_set()`.
>
> Signed-off-b
On Tue, Jan 2, 2018 at 5:03 AM, Joey Pabalinas wrote:
> The characters pointed to by `zswap_compressor`, `type`, and `compressor`
> aren't ever modified. Add const to the static variable and both parameters in
> `zswap_pool_find_get()`, `zswap_pool_create()`, and `__zswap_param_set()`
>
> Signed-o
_enabled parameter.
>
> Updated zswap document with details on same-value filled
> pages identification feature.
> The usage of zswap.same_filled_pages_enabled module parameter
> is explained.
>
> Signed-off-by: Srividya Desireddy
Acked-by: Dan Streetman
> ---
> Documentation/
On Wed, Nov 29, 2017 at 10:34 AM, Srividya Desireddy
wrote:
> From: Srividya Desireddy
> Date: Wed, 29 Nov 2017 20:23:15 +0530
> Subject: [PATCH] zswap: Update with same-value filled page feature
>
> Updated zswap document with details on same-value filled
> pages identification feature.
> The us
On Mon, Nov 20, 2017 at 6:46 PM, Andrew Morton
wrote:
>
> On Wed, 18 Oct 2017 10:48:32 + Srividya Desireddy
> wrote:
>
> > +/* Enable/disable handling same-value filled pages (enabled by default) */
> > +static bool zswap_same_filled_pages_enabled = true;
> > +module_param_named(same_filled_
which is optimised for this specific job.
>
> I have tested this patch using memset_l() function in zswap_fill_page() on
> x86 64-bit system with 2GB RAM. The performance remains same.
> But, memset_l() funcion might be optimised in future.
> @Seth Jennings/Dan Streetman: Should I u
On Wed, Oct 18, 2017 at 5:31 PM, Timofey Titovets wrote:
>> +static int zswap_is_page_same_filled(void *ptr, unsigned long *value)
>> +{
>> + unsigned int pos;
>> + unsigned long *page;
>> +
>> + page = (unsigned long *)ptr;
>> + for (pos = 1; pos < PAGE_SIZE / sizeof(*page
e, but it's not huge. Considering that most systems will
probably be swapping pages that aren't similar to the worst case
(although I don't have any data to know that), I'd say the improvement
is worth the possible worst-case performance impact.
>
> Signed-off-by: Srividya Desire
On Sat, Aug 26, 2017 at 1:41 PM, Arvind Yadav wrote:
> kernel_param_ops are not supposed to change at runtime. All functions
> working with kernel_param_ops provided by work
> with const kernel_param_ops. So mark the non-const structs as const.
>
> Signed-off-by: Arvind Yadav
R
On Mon, Aug 14, 2017 at 7:16 AM, SF Markus Elfring
wrote:
> From: Markus Elfring
> Date: Mon, 14 Aug 2017 13:04:33 +0200
>
> Add a jump target so that a bit of exception handling can be better reused
> in this function.
>
> Signed-off-by: Markus Elfring
Acked-by: Dan St
d-off-by: Markus Elfring
Acked-by: Dan Streetman
> ---
> mm/zpool.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/mm/zpool.c b/mm/zpool.c
> index fd3ff719c32c..fe1943f7d844 100644
> --- a/mm/zpool.c
> +++ b/mm/zpool.c
> @@ -172,7 +172,6 @@ struct zpool *zpoo
On Thu, Jul 6, 2017 at 5:29 AM, Srividya Desireddy
wrote:
> On Wed, Jul 6, 2017 at 10:49 AM, Sergey Senozhatsky wrote:
>> On (07/02/17 20:28), Seth Jennings wrote:
>>> On Sun, Jul 2, 2017 at 9:19 AM, Srividya Desireddy
>>> > Zswap is a cache which compresses the pages that are being swapped out
>>
>
> Link:
> http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
> Signed-off-by: Markus Elfring
Acked-by: Dan Streetman
> ---
> mm/zswap.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/mm/zswap.c b/mm/zswa
ize
> determination a bit safer according to the Linux coding style convention.
>
> Signed-off-by: Markus Elfring
Acked-by: Dan Streetman
> ---
> mm/zswap.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/zswap.c b/mm/zswap.c
> index 18d8e871
>
> Link:
> http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
> Signed-off-by: Markus Elfring
Acked-by: Dan Streetman
> ---
> mm/zswap.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/mm/zswap.c b/mm/zswap.c
>
On Sat, Apr 1, 2017 at 1:25 PM, Haren Myneni wrote:
> [PATCH] crypto/nx: Update MAINTAINERS entry for 842 compression
>
> Signed-off-by: Haren Myneni
Acked-by: Dan Streetman
>
> ---
> MAINTAINERS | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>
On Fri, Mar 24, 2017 at 9:33 PM, Boris Ostrovsky
wrote:
>
>>
>> I think we can all agree that the *ideal* situation would be, for the
>> balloon driver to not immediately hotplug memory so it can add 11 more
>> pages, so maybe I just need to figure out why the balloon driver
>> thinks it needs 11
On Fri, Mar 24, 2017 at 5:10 PM, Konrad Rzeszutek Wilk
wrote:
> On Fri, Mar 24, 2017 at 04:34:23PM -0400, Dan Streetman wrote:
>> On Wed, Mar 22, 2017 at 10:13 PM, Boris Ostrovsky
>> wrote:
>> >
>> >
>> > On 03/22/2017 05:16 PM, Dan Streetman wrote:
>
On Wed, Mar 22, 2017 at 10:13 PM, Boris Ostrovsky
wrote:
>
>
> On 03/22/2017 05:16 PM, Dan Streetman wrote:
>>
>> I have a question about a problem introduced by this commit:
>> c275a57f5ec3056f732843b11659d892235faff7
>> "xen/balloon: Set balloon's in
On Thu, Mar 23, 2017 at 3:56 AM, Juergen Gross wrote:
> On 23/03/17 03:13, Boris Ostrovsky wrote:
>>
>>
>> On 03/22/2017 05:16 PM, Dan Streetman wrote:
>>> I have a question about a problem introduced by this commit:
>>> c275a57f5ec3056f732843b11659d8922
I have a question about a problem introduced by this commit:
c275a57f5ec3056f732843b11659d892235faff7
"xen/balloon: Set balloon's initial state to number of existing RAM pages"
It changed the xen balloon current_pages calculation to start with the
number of physical pages in the system, instead of
On Thu, Mar 16, 2017 at 12:33 PM, Herbert Xu
wrote:
> On Wed, Mar 08, 2017 at 12:38:40PM -0500, Dan Streetman wrote:
>>
>>
>> setting the ASYNC bit makes it synchronous? that seems backwards...?
>
> You set the ASYNC bit in the mask and leave it clear in the type.
>
On Thu, Mar 9, 2017 at 4:39 AM, Herbert Xu wrote:
> On Wed, Mar 08, 2017 at 12:38:40PM -0500, Dan Streetman wrote:
>>
>> It looks like the crypto_scomp interface is buried under
>> include/crypto/internal/scompress.h, however that's exactly what zswap
>> should be
On Mon, Feb 27, 2017 at 9:40 AM, Mahipal Reddy
wrote:
> Hi Dan,
> Thanks for your reply.
>
> On Sat, Feb 25, 2017 at 3:51 AM, Dan Streetman wrote:
>> On Fri, Feb 24, 2017 at 11:05 AM, Mahipal Challa
>> wrote:
>>> This adds support for kernel's new cry
On Wed, Mar 8, 2017 at 6:47 AM, Srividya Desireddy
wrote:
>
> On Sat, Mar 4, 2017 at 02:55 AM, Dan Streetman wrote:
>> On Sat, Feb 25, 2017 at 12:18 PM, Sarbojit Ganguly
>> wrote:
>>> On 25 February 2017 at 20:12, Srividya Desireddy
>>> wrote:
>>>&
On Sat, Feb 25, 2017 at 12:18 PM, Sarbojit Ganguly
wrote:
> On 25 February 2017 at 20:12, Srividya Desireddy
> wrote:
>> From: Srividya Desireddy
>> Date: Thu, 23 Feb 2017 15:04:06 +0530
>> Subject: [PATCH] zswap: Zero-filled pages handling
your email is base64-encoded; please send plain text e
On Fri, Feb 24, 2017 at 11:05 AM, Mahipal Challa
wrote:
> This adds support for kernel's new crypto acomp/scomp framework
> to zswap.
I don't understand the point of this, zswap can't compress pages
asynchronously, so what benefit do we get from using the async crypto
api and then immediately wai
On Fri, Jan 13, 2017 at 5:30 PM, Konrad Rzeszutek Wilk
wrote:
> On Fri, Jan 13, 2017 at 03:07:51PM -0500, Dan Streetman wrote:
>> Revert the main part of commit:
>> af42b8d12f8a ("xen: fix MSI setup and teardown for PV on HVM guests")
>>
>> That commit in
On Wed, Aug 17, 2016 at 6:18 AM, Srividya Desireddy
wrote:
> From: Srividya Desireddy
> Date: Wed, 17 Aug 2016 14:34:14 +0530
> Subject: [PATCH 3/4] zswap: Zero-filled pages handling
>
> This patch adds a check in zswap_frontswap_store() to identify zero-filled
> page before compression of the pa
On Wed, Aug 17, 2016 at 6:07 AM, Srividya Desireddy
wrote:
> From: Srividya Desireddy
> Date: Wed, 17 Aug 2016 14:31:01 +0530
> Subject: [PATCH 1/4] zswap: Share zpool memory of duplicate pages
>
> This patch shares the compressed pool memory of duplicate pages and reduces
> compressed pool memor
of headless pages.
>
> Signed-off-by: Vitaly Wool
Reviewed-by: Dan Streetman
> ---
> mm/z3fold.c | 151
> ++--
> 1 file changed, 66 insertions(+), 85 deletions(-)
>
> diff --git a/mm/z3fold.c b/mm/z3fold.c
> i
age spinlock (or rwlock) has been around for some time.
>
> This patch implements spinlock-based per-page locking mechanism which
> is lightweight enough to normally fit ok into the z3fold header.
>
> Signed-off-by: Vitaly Wool
Reviewed-by: Dan Streetman
there, if the gap between them is big
> enough.
>
> This patch adds the relevant code, using BIG_CHUNK_GAP define as
> a threshold for middle chunk to be worth moving.
>
> Signed-off-by: Vitaly Wool
Reviewed-by: Dan Streetman
> ---
> mm/z3fold.c | 26 ++
f the z3fold header in chunks.
>
> Fixed also are the calculation of num_free_chunks() and the address to
> move the middle chunk to in case of in-page compaction in
> z3fold_compact_page().
>
> Signed-off-by: Vitaly Wool
Reviewed-by: Dan Streetma
On Tue, Jan 31, 2017 at 3:39 PM, Vitaly Wool wrote:
> This patch converts pages_nr per-pool counter to atomic64_t.
>
> Signed-off-by: Vitaly Wool
Reviewed-by: Dan Streetman
> ---
> mm/z3fold.c | 20 +---
> 1 file changed, 9 insertions(+), 11 deletions(-)
&
9b42c3529e ("zswap: use charp for zswap param strings")
Reported-by: Sergey Senozhatsky
Signed-off-by: Dan Streetman
---
Andrew, I'll leave it up to you if you want to send this to -stable;
personally I don't think it's needed. For the stable kernels, only
the first hunk of t
On Tue, Jan 24, 2017 at 7:24 PM, Sergey Senozhatsky
wrote:
>
> just a note,
>
> On (01/24/17 15:02), Dan Streetman wrote:
> [..]
>> @@ -692,6 +702,15 @@ static int __zswap_param_set(const char *val, const
>> struct kernel_param *kp,
>>*/
>>
Add myself as zbud maintainer.
Cc: Seth Jennings
Signed-off-by: Dan Streetman
---
MAINTAINERS | 1 +
1 file changed, 1 insertion(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index e5575d5..0bd4b33 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -13681,6 +13681,7 @@ F: drivers/net/hamradio
On Tue, Jan 24, 2017 at 4:24 PM, Andrew Morton
wrote:
> On Tue, 24 Jan 2017 15:02:57 -0500 Dan Streetman wrote:
>
>> Add zswap_init_failed bool that prevents changing any of the module
>> params, if init_zswap() fails, and set zswap_enabled to false. Change
>> 'enab
Add myself as zswap maintainer.
Cc: Seth Jennings
Signed-off-by: Dan Streetman
---
You'd think I could get this simple patch right. oops!
Since v1: fixed Seth's email in Cc: line
Seth, I'd meant to send this last year, I assume you're still ok
adding me. Did yo
Add myself as zswap maintainer.
Cc: Seth Jennings
Signed-off-by: Dan Streetman
---
Seth, I'd meant to send this last year, I assume you're still ok
adding me. Did you want to stay on as maintainer also?
MAINTAINERS | 1 +
1 file changed, 1 insertion(+)
diff --git a/MAINTAINERS b/M
will result in a WARNING because zswap didn't expect them to be changed if
initialization failed.
These patches fix that assumption, as well as allowing pool creation after
a failed initialization, if only the zpool and/or compressor creation
failed.
Dan Streetman (3):
zswap: disable changing
this WARNING:
[ 429.723476] WARNING: CPU: 0 PID: 5140 at mm/zswap.c:503
__zswap_pool_current+0x56/0x60
Fixes: 90b0fc26d5db ("zswap: change zpool/compressor at runtime")
Cc: sta...@vger.kernel.org
Signed-off-by: Dan Streetman
---
mm/zswap.c | 30 +-
1 file
Allow zswap to initialize at boot even if it can't create its pool
due to a failure to create a zpool and/or compressor. Allow those
to be created later, from the sysfs module param interface.
Signed-off-by: Dan Streetman
---
mm/zswap.c | 46 ++--
: Dan Streetman
---
mm/zswap.c | 49 +
1 file changed, 37 insertions(+), 12 deletions(-)
diff --git a/mm/zswap.c b/mm/zswap.c
index 77cb847..9e8565d 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -76,6 +76,8 @@ static u64 zswap_duplicate_entry
On Fri, Jan 13, 2017 at 3:00 PM, Boris Ostrovsky
wrote:
> On 01/13/2017 01:44 PM, Stefano Stabellini wrote:
>> On Fri, 13 Jan 2017, Dan Streetman wrote:
>>> On Wed, Jan 11, 2017 at 6:25 PM, Dan Streetman wrote:
>>>> On Wed, Jan 11, 2017 at 1:46 PM, Stefano Stabel
en.org/archives/html/xen-devel/2017-01/msg00447.html
Fixes: af42b8d12f8a ("xen: fix MSI setup and teardown for PV on HVM guests")
Signed-off-by: Dan Streetman
---
arch/x86/pci/xen.c | 23 +++
1 file changed, 7 insertions(+), 16 deletions(-)
diff --git a/arch/x86/pci/
On Wed, Jan 11, 2017 at 6:25 PM, Dan Streetman wrote:
> On Wed, Jan 11, 2017 at 1:46 PM, Stefano Stabellini
> wrote:
>> On Wed, 11 Jan 2017, Dan Streetman wrote:
>>> On Tue, Jan 10, 2017 at 8:25 PM, Stefano Stabellini
>>> wrote:
>>> > On Tue, 10 Jan 201
On Wed, Jan 11, 2017 at 3:51 PM, Vitaly Wool wrote:
> On Wed, 11 Jan 2017 13:03:06 -0500
> Dan Streetman wrote:
>
>
>> >>> provided that I take the lock for the headless case above. That will
>> >>> work won't it?
>> >>
>> >&g
On Wed, Jan 11, 2017 at 3:52 PM, Vitaly Wool wrote:
> On Wed, 11 Jan 2017 17:43:13 +0100
> Vitaly Wool wrote:
>
>> On Wed, Jan 11, 2017 at 5:28 PM, Dan Streetman wrote:
>> > On Wed, Jan 11, 2017 at 10:06 AM, Vitaly Wool wrote:
>> >> z3fold_compact_page()
On Wed, Jan 11, 2017 at 1:46 PM, Stefano Stabellini
wrote:
> On Wed, 11 Jan 2017, Dan Streetman wrote:
>> On Tue, Jan 10, 2017 at 8:25 PM, Stefano Stabellini
>> wrote:
>> > On Tue, 10 Jan 2017, Dan Streetman wrote:
>> >> On Tue, Jan 10, 2017 at 2:03
On Wed, Jan 11, 2017 at 12:51 PM, Vitaly Wool wrote:
> On Wed, Jan 11, 2017 at 6:39 PM, Dan Streetman wrote:
>> On Wed, Jan 11, 2017 at 12:27 PM, Vitaly Wool wrote:
>>> On Wed, Jan 11, 2017 at 6:08 PM, Dan Streetman wrote:
>>>> On Wed, Jan 11, 2017 at 10:06 AM,
On Wed, Jan 11, 2017 at 12:27 PM, Vitaly Wool wrote:
> On Wed, Jan 11, 2017 at 6:08 PM, Dan Streetman wrote:
>> On Wed, Jan 11, 2017 at 10:06 AM, Vitaly Wool wrote:
>>> With both coming and already present locking optimizations,
>>> introducing kref to reference-
On Wed, Jan 11, 2017 at 10:06 AM, Vitaly Wool wrote:
> With both coming and already present locking optimizations,
> introducing kref to reference-count z3fold objects is the right
> thing to do. Moreover, it makes buddied list no longer necessary,
> and allows for a simpler handling of headless p
On Wed, Jan 11, 2017 at 5:52 AM, Vitaly Wool wrote:
> On Wed, Jan 4, 2017 at 7:42 PM, Dan Streetman wrote:
>> On Sun, Dec 25, 2016 at 7:40 PM, Vitaly Wool wrote:
>>> With both coming and already present locking optimizations,
>>> introducing kref to reference-count
een the page and
pool locks...but I don't see anything specifically wrong so
Reviewed-by: Dan Streetman
> ---
> mm/z3fold.c | 148
> +++-
> 1 file changed, 106 insertions(+), 42 deletions(-)
>
> diff --git a/mm/z3fo
On Wed, Jan 11, 2017 at 10:06 AM, Vitaly Wool wrote:
> z3fold_compact_page() currently only handles the situation when
> there's a single middle chunk within the z3fold page. However it
> may be worth it to move middle chunk closer to either first or
> last chunk, whichever is there, if the gap be
f the z3fold header in chunks.
>
> Fixed also are the calculation of num_free_chunks() and the address to
> move the middle chunk to in case of in-page compaction in
> z3fold_compact_page().
>
> Signed-off-by: Vitaly Wool
Acked-by: Dan Streetma
On Wed, Jan 11, 2017 at 10:06 AM, Vitaly Wool wrote:
> This patch converts pages_nr per-pool counter to atomic64_t.
>
> Signed-off-by: Vitaly Wool
Acked-by: Dan Streetman
> ---
> mm/z3fold.c | 20 +---
> 1 file changed, 9 insertions(+), 11 deletions(-)
&
On Tue, Jan 10, 2017 at 8:25 PM, Stefano Stabellini
wrote:
> On Tue, 10 Jan 2017, Dan Streetman wrote:
>> On Tue, Jan 10, 2017 at 2:03 PM, Stefano Stabellini
>> wrote:
>> > On Tue, 10 Jan 2017, Dan Streetman wrote:
>> >> On Tue, Jan 10, 2017 at 10:57 AM, Dan S
On Tue, Jan 10, 2017 at 2:03 PM, Stefano Stabellini
wrote:
> On Tue, 10 Jan 2017, Dan Streetman wrote:
>> On Tue, Jan 10, 2017 at 10:57 AM, Dan Streetman wrote:
>> > On Mon, Jan 9, 2017 at 2:30 PM, Stefano Stabellini
>> > wrote:
>> >> On Mon, 9 Jan 2017,
On Tue, Jan 10, 2017 at 10:57 AM, Dan Streetman wrote:
> On Mon, Jan 9, 2017 at 2:30 PM, Stefano Stabellini
> wrote:
>> On Mon, 9 Jan 2017, Konrad Rzeszutek Wilk wrote:
>>> On Mon, Jan 09, 2017 at 10:42:41AM -0500, Dan Streetman wrote:
>>> > On Mon, Jan 9,
On Mon, Jan 9, 2017 at 2:30 PM, Stefano Stabellini
wrote:
> On Mon, 9 Jan 2017, Konrad Rzeszutek Wilk wrote:
>> On Mon, Jan 09, 2017 at 10:42:41AM -0500, Dan Streetman wrote:
>> > On Mon, Jan 9, 2017 at 9:59 AM, Boris Ostrovsky
>> > wrote:
>> > > On 01/
On Mon, Jan 9, 2017 at 9:59 AM, Boris Ostrovsky
wrote:
> On 01/06/2017 08:06 PM, Konrad Rzeszutek Wilk wrote:
>> On Thu, Jan 05, 2017 at 02:28:56PM -0500, Dan Streetman wrote:
>>> Do not read a pci device's msi message data to see if a pirq was
>>> previously conf
use
the same pirq that it had before; but that pirq was allocated to
controller B, and thus the Xen event channel for controller A's re-used
pirq fails to map its irq to that pirq; the hypervisor already has the
pirq mapped elsewhere.
Signed-off-by: Dan Streetman
---
arch/x86/pci/xen.c | 23 +
On Sun, Dec 25, 2016 at 7:40 PM, Vitaly Wool wrote:
> With both coming and already present locking optimizations,
> introducing kref to reference-count z3fold objects is the right
> thing to do. Moreover, it makes buddied list no longer necessary,
> and allows for a simpler handling of headless pa
On Sun, Dec 25, 2016 at 7:39 PM, Vitaly Wool wrote:
> Currently the whole kernel build will be stopped if the size of struct
> z3fold_header is greater than the size of one chunk, which is 64 bytes by
> default. This patch instead defines the offset for z3fold objects as the
> size of the z3fold h
On Sun, Dec 25, 2016 at 7:37 PM, Vitaly Wool wrote:
> Most of z3fold operations are in-page, such as modifying z3fold page
> header or moving z3fold objects within a page. Taking per-pool spinlock
> to protect per-page objects is therefore suboptimal, and the idea of
> having a per-page spinlock
On Sun, Dec 25, 2016 at 7:34 PM, Vitaly Wool wrote:
> z3fold_compact_page() currently only handles the situation where there's a
> single middle chunk within the z3fold page. However it may be worth it to
> move middle chunk closer to either first or last chunk, whichever is
> there, if the gap b
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