On 7/8/20 2:20 AM, Damien Le Moal wrote:
Triggerring reclaim only based on the percentage of unmapped cache
zones can fail to detect cases where reclaim is needed, e.g. if the
target has only 2 or 3 cache zones and only one unmapped cache zone,
the percentage of free cache zone is higher than
Enable support for zoned block devices. This is done by:
1) implementing the target report_zones method
2) adding the DM_TARGET_ZONED_HM flag to the target features
3) Introducing inline write encryption completion to preserve write
ordering
The last point is implemented by introducing the
On 7/8/20 2:20 AM, Damien Le Moal wrote:
In dmz_reclaim_work(), the variables nr_unmap_rnd and nr_rnd are set but
unused. Remove them.
Fixes: f97809aec589 ("dm zoned: per-device reclaim")
Signed-off-by: Damien Le Moal
---
drivers/md/dm-zoned-reclaim.c | 5 +
1 file changed, 1
kobject_uevent may allocate memory and it may be called while there are dm
devices suspended. The allocation may recurse into a suspended device,
causing a deadlock. We must set the noio flag when sending a uevent.
This is the observed deadlock:
iSCSI-write
holding: rx_queue_mutex
On Sat, Jun 27 2020 at 3:31am -0400,
Christoph Hellwig wrote:
> bio_uninit is the proper API to clean up a BIO that has been allocated
> on stack or inside a structure that doesn't come from the BIO allocator.
> Switch dm to use that instead of bio_disassociate_blkg, which really is
> an
On Tue, Jul 07 2020 at 8:20pm -0400,
Damien Le Moal wrote:
> In dmz_reclaim_work(), the variables nr_unmap_rnd and nr_rnd are set but
> unused. Remove them.
>
> Fixes: f97809aec589 ("dm zoned: per-device reclaim")
> Signed-off-by: Damien Le Moal
> ---
> drivers/md/dm-zoned-reclaim.c | 5
On 7/7/20 1:37 AM, Ignat Korchagin wrote:
> Changes from v2:
> * dropped nobacklog boolean - ciphers are OK to backlog requests
> * moved some conditionals inline dropping the extra local variables
> * renamed "noresched" -> "atomic"
>
> This is a follow up from [1]. Consider the following
Mikulas Patocka writes:
> kobject_uevent may allocate memory and it may be called while there are dm
> devices suspended. The allocation may recurse into a suspended device,
> causing a deadlock. We must set the noio flag when sending a uevent.
If I understand it correctly, considering the
On Wed, Jul 08 2020 at 2:26pm -0400,
Gabriel Krisman Bertazi wrote:
> Mikulas Patocka writes:
>
> > kobject_uevent may allocate memory and it may be called while there are dm
> > devices suspended. The allocation may recurse into a suspended device,
> > causing a deadlock. We must set the
Mike Snitzer writes:
> On Wed, Jul 08 2020 at 2:26pm -0400,
> Gabriel Krisman Bertazi wrote:
>
>> If I understand it correctly, considering the deadlock you shared, this
>> doesn't solve the entire issue. For instance, kobject_uevent_env on the
>> GFP_NOIO thread waits on uevent_sock_mutex,
On 7/1/20 3:06 AM, Christoph Hellwig wrote:
> Hi Jens,
>
> we have a lot of bdi congestion related code that is left around without
> any use. This series removes it in preparation of sorting out the bdi
> lifetime rules properly.
Please run series like this through a full compilation, for both
tree:
https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git
for-next
head: d88c192d8c466e0d004f451091c409aa87c5ca89
commit: 20f93ea74f9c3274879328b9e1a2a85bc0cca5fd [16/21] dm dust: add interface
to list all badblocks
config: riscv-allyesconfig (attached as .config)
On Wed, Jul 08, 2020 at 05:14:29PM -0600, Jens Axboe wrote:
> On 7/1/20 3:06 AM, Christoph Hellwig wrote:
> > Hi Jens,
> >
> > we have a lot of bdi congestion related code that is left around without
> > any use. This series removes it in preparation of sorting out the bdi
> > lifetime rules
Eric Biggers wrote:
>
> @@ -875,14 +873,21 @@ static void cbcmac_exit_tfm(struct crypto_tfm *tfm)
>
> static int cbcmac_create(struct crypto_template *tmpl, struct rtattr **tb)
> {
> + struct crypto_attr_type *algt;
>struct shash_instance *inst;
>struct crypto_cipher_spawn
On 2020/07/09 0:14, Mike Snitzer wrote:
> On Tue, Jul 07 2020 at 8:20pm -0400,
> Damien Le Moal wrote:
>
>> In dmz_reclaim_work(), the variables nr_unmap_rnd and nr_rnd are set but
>> unused. Remove them.
>>
>> Fixes: f97809aec589 ("dm zoned: per-device reclaim")
>> Signed-off-by: Damien Le
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