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* [PATCH] btrfs: auto enable discard=async when possible
@ 2022-07-27 15:01 David Sterba
  2022-07-27 18:46 ` Boris Burkov
                   ` (3 more replies)
  0 siblings, 4 replies; 6+ messages in thread
From: David Sterba @ 2022-07-27 15:01 UTC (permalink / raw)
  To: linux-btrfs

There's a request to automatically enable async discard for capable
devices. We can do that, the async mode is designed to wait for larger
freed extents and is not intrusive, with limits to iops, kbps or latency.

The status and tunables will be exported in /sys/fs/btrfs/FSID/discard .

The automatic selection is done if there's at least one discard capable
device in the filesystem (not capable devices are skipped). Mounting
with any other discard option will honor that option, notably mounting
with nodiscard will keep it disabled.

Link: https://lore.kernel.org/linux-btrfs/CAEg-Je_b1YtdsCR0zS5XZ_SbvJgN70ezwvRwLiCZgDGLbeMB=w@mail.gmail.com/
Signed-off-by: David Sterba <dsterba@suse.com>
---
 fs/btrfs/ctree.h   |  1 +
 fs/btrfs/disk-io.c | 14 ++++++++++++++
 fs/btrfs/super.c   |  2 ++
 fs/btrfs/volumes.c |  3 +++
 fs/btrfs/volumes.h |  2 ++
 5 files changed, 22 insertions(+)

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 4db85b9dc7ed..0a338311f8e2 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1503,6 +1503,7 @@ enum {
 	BTRFS_MOUNT_DISCARD_ASYNC		= (1UL << 28),
 	BTRFS_MOUNT_IGNOREBADROOTS		= (1UL << 29),
 	BTRFS_MOUNT_IGNOREDATACSUMS		= (1UL << 30),
+	BTRFS_MOUNT_NODISCARD			= (1UL << 31),
 };
 
 #define BTRFS_DEFAULT_COMMIT_INTERVAL	(30)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 3fac429cf8a4..8f8e33219d4d 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3767,6 +3767,20 @@ int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device
 		btrfs_set_and_info(fs_info, SSD, "enabling ssd optimizations");
 	}
 
+	/*
+	 * For devices supporting discard turn on discard=async automatically,
+	 * unless it's already set or disabled. This could be turned off by
+	 * nodiscard for the same mount.
+	 */
+	if (!(btrfs_test_opt(fs_info, DISCARD_SYNC) ||
+	      btrfs_test_opt(fs_info, DISCARD_ASYNC) ||
+	      btrfs_test_opt(fs_info, NODISCARD)) &&
+	    fs_info->fs_devices->discardable) {
+		btrfs_set_and_info(fs_info, DISCARD_ASYNC,
+				"auto enabling discard=async");
+	      btrfs_clear_opt(fs_info->mount_opt, NODISCARD);
+	}
+
 	/*
 	 * Mount does not set all options immediately, we can do it now and do
 	 * not have to wait for transaction commit
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 4c7089b1681b..1032aaa2c2f4 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -915,12 +915,14 @@ int btrfs_parse_options(struct btrfs_fs_info *info, char *options,
 				ret = -EINVAL;
 				goto out;
 			}
+			btrfs_clear_opt(info->mount_opt, NODISCARD);
 			break;
 		case Opt_nodiscard:
 			btrfs_clear_and_info(info, DISCARD_SYNC,
 					     "turning off discard");
 			btrfs_clear_and_info(info, DISCARD_ASYNC,
 					     "turning off async discard");
+			btrfs_set_opt(info->mount_opt, NODISCARD);
 			break;
 		case Opt_space_cache:
 		case Opt_space_cache_version:
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 272901514b0c..22bfc7806ccb 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -639,6 +639,9 @@ static int btrfs_open_one_device(struct btrfs_fs_devices *fs_devices,
 	if (!bdev_nonrot(bdev))
 		fs_devices->rotating = true;
 
+	if (bdev_max_discard_sectors(bdev))
+		fs_devices->discardable = true;
+
 	device->bdev = bdev;
 	clear_bit(BTRFS_DEV_STATE_IN_FS_METADATA, &device->dev_state);
 	device->mode = flags;
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 5639961b3626..4c716603449d 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -329,6 +329,8 @@ struct btrfs_fs_devices {
 	 * nonrot flag set
 	 */
 	bool rotating;
+	/* Devices support TRIM/discard commands */
+	bool discardable;
 
 	struct btrfs_fs_info *fs_info;
 	/* sysfs kobjects */
-- 
2.36.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread
* Re: [PATCH] btrfs: auto enable discard=async when possible
  2022-07-27 15:01 [PATCH] btrfs: auto enable discard=async when possible David Sterba
@ 2022-07-27 18:46 ` Boris Burkov
  2022-07-27 18:47 ` Roman Mamedov
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 6+ messages in thread
From: Boris Burkov @ 2022-07-27 18:46 UTC (permalink / raw)
  To: dsterba, linux-btrfs

On Wed, Jul 27, 2022 at 05:01:58PM +0200, David Sterba wrote:
> There's a request to automatically enable async discard for capable
> devices. We can do that, the async mode is designed to wait for larger
> freed extents and is not intrusive, with limits to iops, kbps or latency.
> 
> The status and tunables will be exported in /sys/fs/btrfs/FSID/discard .
> 
> The automatic selection is done if there's at least one discard capable
> device in the filesystem (not capable devices are skipped). Mounting
> with any other discard option will honor that option, notably mounting
> with nodiscard will keep it disabled.
> 
> Link: https://lore.kernel.org/linux-btrfs/CAEg-Je_b1YtdsCR0zS5XZ_SbvJgN70ezwvRwLiCZgDGLbeMB=w@mail.gmail.com/
> Signed-off-by: David Sterba <dsterba@suse.com>
Works for me, on mount and ro mount.
Reviewed-by: Boris Burkov <boris@bur.io>
> ---
>  fs/btrfs/ctree.h   |  1 +
>  fs/btrfs/disk-io.c | 14 ++++++++++++++
>  fs/btrfs/super.c   |  2 ++
>  fs/btrfs/volumes.c |  3 +++
>  fs/btrfs/volumes.h |  2 ++
>  5 files changed, 22 insertions(+)
> 
> diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
> index 4db85b9dc7ed..0a338311f8e2 100644
> --- a/fs/btrfs/ctree.h
> +++ b/fs/btrfs/ctree.h
> @@ -1503,6 +1503,7 @@ enum {
>  	BTRFS_MOUNT_DISCARD_ASYNC		= (1UL << 28),
>  	BTRFS_MOUNT_IGNOREBADROOTS		= (1UL << 29),
>  	BTRFS_MOUNT_IGNOREDATACSUMS		= (1UL << 30),
> +	BTRFS_MOUNT_NODISCARD			= (1UL << 31),
>  };
>  
>  #define BTRFS_DEFAULT_COMMIT_INTERVAL	(30)
> diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
> index 3fac429cf8a4..8f8e33219d4d 100644
> --- a/fs/btrfs/disk-io.c
> +++ b/fs/btrfs/disk-io.c
> @@ -3767,6 +3767,20 @@ int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device
>  		btrfs_set_and_info(fs_info, SSD, "enabling ssd optimizations");
>  	}
>  
> +	/*
> +	 * For devices supporting discard turn on discard=async automatically,
> +	 * unless it's already set or disabled. This could be turned off by
> +	 * nodiscard for the same mount.
> +	 */
> +	if (!(btrfs_test_opt(fs_info, DISCARD_SYNC) ||
> +	      btrfs_test_opt(fs_info, DISCARD_ASYNC) ||
> +	      btrfs_test_opt(fs_info, NODISCARD)) &&
> +	    fs_info->fs_devices->discardable) {
> +		btrfs_set_and_info(fs_info, DISCARD_ASYNC,
> +				"auto enabling discard=async");
> +	      btrfs_clear_opt(fs_info->mount_opt, NODISCARD);
> +	}
> +
>  	/*
>  	 * Mount does not set all options immediately, we can do it now and do
>  	 * not have to wait for transaction commit
> diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
> index 4c7089b1681b..1032aaa2c2f4 100644
> --- a/fs/btrfs/super.c
> +++ b/fs/btrfs/super.c
> @@ -915,12 +915,14 @@ int btrfs_parse_options(struct btrfs_fs_info *info, char *options,
>  				ret = -EINVAL;
>  				goto out;
>  			}
> +			btrfs_clear_opt(info->mount_opt, NODISCARD);
>  			break;
>  		case Opt_nodiscard:
>  			btrfs_clear_and_info(info, DISCARD_SYNC,
>  					     "turning off discard");
>  			btrfs_clear_and_info(info, DISCARD_ASYNC,
>  					     "turning off async discard");
> +			btrfs_set_opt(info->mount_opt, NODISCARD);
>  			break;
>  		case Opt_space_cache:
>  		case Opt_space_cache_version:
> diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
> index 272901514b0c..22bfc7806ccb 100644
> --- a/fs/btrfs/volumes.c
> +++ b/fs/btrfs/volumes.c
> @@ -639,6 +639,9 @@ static int btrfs_open_one_device(struct btrfs_fs_devices *fs_devices,
>  	if (!bdev_nonrot(bdev))
>  		fs_devices->rotating = true;
>  
> +	if (bdev_max_discard_sectors(bdev))
> +		fs_devices->discardable = true;
> +
>  	device->bdev = bdev;
>  	clear_bit(BTRFS_DEV_STATE_IN_FS_METADATA, &device->dev_state);
>  	device->mode = flags;
> diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
> index 5639961b3626..4c716603449d 100644
> --- a/fs/btrfs/volumes.h
> +++ b/fs/btrfs/volumes.h
> @@ -329,6 +329,8 @@ struct btrfs_fs_devices {
>  	 * nonrot flag set
>  	 */
>  	bool rotating;
> +	/* Devices support TRIM/discard commands */
> +	bool discardable;
>  
>  	struct btrfs_fs_info *fs_info;
>  	/* sysfs kobjects */
> -- 
> 2.36.1
> 

^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: [PATCH] btrfs: auto enable discard=async when possible
  2022-07-27 15:01 [PATCH] btrfs: auto enable discard=async when possible David Sterba
  2022-07-27 18:46 ` Boris Burkov
@ 2022-07-27 18:47 ` Roman Mamedov
  2022-07-28 11:57   ` David Sterba
  2022-08-06  7:29 ` Neal Gompa
  2022-11-06  5:08 ` Wang Yugui
  3 siblings, 1 reply; 6+ messages in thread
From: Roman Mamedov @ 2022-07-27 18:47 UTC (permalink / raw)
  To: David Sterba; +Cc: linux-btrfs

On Wed, 27 Jul 2022 17:01:58 +0200
David Sterba <dsterba@suse.com> wrote:

> --- a/fs/btrfs/ctree.h
> +++ b/fs/btrfs/ctree.h
> @@ -1503,6 +1503,7 @@ enum {
>  	BTRFS_MOUNT_DISCARD_ASYNC		= (1UL << 28),
>  	BTRFS_MOUNT_IGNOREBADROOTS		= (1UL << 29),
>  	BTRFS_MOUNT_IGNOREDATACSUMS		= (1UL << 30),
> +	BTRFS_MOUNT_NODISCARD			= (1UL << 31),
>  };
>  
>  #define BTRFS_DEFAULT_COMMIT_INTERVAL	(30)
> diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
> index 3fac429cf8a4..8f8e33219d4d 100644
> --- a/fs/btrfs/disk-io.c
> +++ b/fs/btrfs/disk-io.c
> @@ -3767,6 +3767,20 @@ int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device
>  		btrfs_set_and_info(fs_info, SSD, "enabling ssd optimizations");
>  	}
>  
> +	/*
> +	 * For devices supporting discard turn on discard=async automatically,
> +	 * unless it's already set or disabled. This could be turned off by
> +	 * nodiscard for the same mount.
> +	 */
> +	if (!(btrfs_test_opt(fs_info, DISCARD_SYNC) ||
> +	      btrfs_test_opt(fs_info, DISCARD_ASYNC) ||
> +	      btrfs_test_opt(fs_info, NODISCARD)) &&
> +	    fs_info->fs_devices->discardable) {
> +		btrfs_set_and_info(fs_info, DISCARD_ASYNC,
> +				"auto enabling discard=async");
> +	      btrfs_clear_opt(fs_info->mount_opt, NODISCARD);

Spaces are used in the above line instead of a 2nd TAB.

Also I am probably clueless, but it seems the condition just checked that
NODISCARD was not set, so what is the purpose of also clearing it?

Thanks

-- 
With respect,
Roman

^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: [PATCH] btrfs: auto enable discard=async when possible
  2022-07-27 18:47 ` Roman Mamedov
@ 2022-07-28 11:57   ` David Sterba
  0 siblings, 0 replies; 6+ messages in thread
From: David Sterba @ 2022-07-28 11:57 UTC (permalink / raw)
  To: Roman Mamedov; +Cc: David Sterba, linux-btrfs

On Wed, Jul 27, 2022 at 11:47:58PM +0500, Roman Mamedov wrote:
> On Wed, 27 Jul 2022 17:01:58 +0200
> David Sterba <dsterba@suse.com> wrote:
> 
> > --- a/fs/btrfs/ctree.h
> > +++ b/fs/btrfs/ctree.h
> > @@ -1503,6 +1503,7 @@ enum {
> >  	BTRFS_MOUNT_DISCARD_ASYNC		= (1UL << 28),
> >  	BTRFS_MOUNT_IGNOREBADROOTS		= (1UL << 29),
> >  	BTRFS_MOUNT_IGNOREDATACSUMS		= (1UL << 30),
> > +	BTRFS_MOUNT_NODISCARD			= (1UL << 31),
> >  };
> >  
> >  #define BTRFS_DEFAULT_COMMIT_INTERVAL	(30)
> > diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
> > index 3fac429cf8a4..8f8e33219d4d 100644
> > --- a/fs/btrfs/disk-io.c
> > +++ b/fs/btrfs/disk-io.c
> > @@ -3767,6 +3767,20 @@ int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device
> >  		btrfs_set_and_info(fs_info, SSD, "enabling ssd optimizations");
> >  	}
> >  
> > +	/*
> > +	 * For devices supporting discard turn on discard=async automatically,
> > +	 * unless it's already set or disabled. This could be turned off by
> > +	 * nodiscard for the same mount.
> > +	 */
> > +	if (!(btrfs_test_opt(fs_info, DISCARD_SYNC) ||
> > +	      btrfs_test_opt(fs_info, DISCARD_ASYNC) ||
> > +	      btrfs_test_opt(fs_info, NODISCARD)) &&
> > +	    fs_info->fs_devices->discardable) {
> > +		btrfs_set_and_info(fs_info, DISCARD_ASYNC,
> > +				"auto enabling discard=async");
> > +	      btrfs_clear_opt(fs_info->mount_opt, NODISCARD);
> 
> Spaces are used in the above line instead of a 2nd TAB.
> 
> Also I am probably clueless, but it seems the condition just checked that
> NODISCARD was not set, so what is the purpose of also clearing it?

I think it's out of habit and consistency with other option handling to
make it clear what's the new state (compression and datacow/datasum), but
you're right that here it's a bit redundant.

^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: [PATCH] btrfs: auto enable discard=async when possible
  2022-07-27 15:01 [PATCH] btrfs: auto enable discard=async when possible David Sterba
  2022-07-27 18:46 ` Boris Burkov
  2022-07-27 18:47 ` Roman Mamedov
@ 2022-08-06  7:29 ` Neal Gompa
  2022-11-06  5:08 ` Wang Yugui
  3 siblings, 0 replies; 6+ messages in thread
From: Neal Gompa @ 2022-08-06  7:29 UTC (permalink / raw)
  To: dsterba, linux-btrfs

On Wed, Jul 27, 2022 at 11:28 AM David Sterba <dsterba@suse.com> wrote:
>
> There's a request to automatically enable async discard for capable
> devices. We can do that, the async mode is designed to wait for larger
> freed extents and is not intrusive, with limits to iops, kbps or latency.
>
> The status and tunables will be exported in /sys/fs/btrfs/FSID/discard .
>
> The automatic selection is done if there's at least one discard capable
> device in the filesystem (not capable devices are skipped). Mounting
> with any other discard option will honor that option, notably mounting
> with nodiscard will keep it disabled.
>
> Link: https://lore.kernel.org/linux-btrfs/CAEg-Je_b1YtdsCR0zS5XZ_SbvJgN70ezwvRwLiCZgDGLbeMB=w@mail.gmail.com/
> Signed-off-by: David Sterba <dsterba@suse.com>

Looks great.

Reviewed-by: Neal Gompa <ngompa@fedoraproject.org>

-- 
Neal Gompa (FAS: ngompa)

^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: [PATCH] btrfs: auto enable discard=async when possible
  2022-07-27 15:01 [PATCH] btrfs: auto enable discard=async when possible David Sterba
                   ` (2 preceding siblings ...)
  2022-08-06  7:29 ` Neal Gompa
@ 2022-11-06  5:08 ` Wang Yugui
  3 siblings, 0 replies; 6+ messages in thread
From: Wang Yugui @ 2022-11-06  5:08 UTC (permalink / raw)
  To: dsterba, linux-btrfs

Hi,

> There's a request to automatically enable async discard for capable
> devices. We can do that, the async mode is designed to wait for larger
> freed extents and is not intrusive, with limits to iops, kbps or latency.
> 
> The status and tunables will be exported in /sys/fs/btrfs/FSID/discard .
> 
> The automatic selection is done if there's at least one discard capable
> device in the filesystem (not capable devices are skipped). Mounting
> with any other discard option will honor that option, notably mounting
> with nodiscard will keep it disabled.
> 
> Link: https://lore.kernel.org/linux-btrfs/CAEg-Je_b1YtdsCR0zS5XZ_SbvJgN70ezwvRwLiCZgDGLbeMB=w@mail.gmail.com/
> Signed-off-by: David Sterba <dsterba@suse.com>
> ---
>  fs/btrfs/ctree.h   |  1 +
>  fs/btrfs/disk-io.c | 14 ++++++++++++++
>  fs/btrfs/super.c   |  2 ++
>  fs/btrfs/volumes.c |  3 +++
>  fs/btrfs/volumes.h |  2 ++
>  5 files changed, 22 insertions(+)
> 
> diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
> index 4db85b9dc7ed..0a338311f8e2 100644
> --- a/fs/btrfs/ctree.h
> +++ b/fs/btrfs/ctree.h
> @@ -1503,6 +1503,7 @@ enum {
>  	BTRFS_MOUNT_DISCARD_ASYNC		= (1UL << 28),
>  	BTRFS_MOUNT_IGNOREBADROOTS		= (1UL << 29),
>  	BTRFS_MOUNT_IGNOREDATACSUMS		= (1UL << 30),
> +	BTRFS_MOUNT_NODISCARD			= (1UL << 31),
>  };
>  
>  #define BTRFS_DEFAULT_COMMIT_INTERVAL	(30)
> diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
> index 3fac429cf8a4..8f8e33219d4d 100644
> --- a/fs/btrfs/disk-io.c
> +++ b/fs/btrfs/disk-io.c
> @@ -3767,6 +3767,20 @@ int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device
>  		btrfs_set_and_info(fs_info, SSD, "enabling ssd optimizations");
>  	}
>  
> +	/*
> +	 * For devices supporting discard turn on discard=async automatically,
> +	 * unless it's already set or disabled. This could be turned off by
> +	 * nodiscard for the same mount.
> +	 */
> +	if (!(btrfs_test_opt(fs_info, DISCARD_SYNC) ||
> +	      btrfs_test_opt(fs_info, DISCARD_ASYNC) ||
> +	      btrfs_test_opt(fs_info, NODISCARD)) &&
> +	    fs_info->fs_devices->discardable) {
> +		btrfs_set_and_info(fs_info, DISCARD_ASYNC,
> +				"auto enabling discard=async");
> +	      btrfs_clear_opt(fs_info->mount_opt, NODISCARD);

We do not need 'btrfs_clear_opt(fs_info->mount_opt, NODISCARD);' here?

Best Regards
Wang Yugui (wangyugui@e16-tech.com)
2022/11/06

> +	}
> +
>  	/*
>  	 * Mount does not set all options immediately, we can do it now and do
>  	 * not have to wait for transaction commit
> diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
> index 4c7089b1681b..1032aaa2c2f4 100644
> --- a/fs/btrfs/super.c
> +++ b/fs/btrfs/super.c
> @@ -915,12 +915,14 @@ int btrfs_parse_options(struct btrfs_fs_info *info, char *options,
>  				ret = -EINVAL;
>  				goto out;
>  			}
> +			btrfs_clear_opt(info->mount_opt, NODISCARD);
>  			break;
>  		case Opt_nodiscard:
>  			btrfs_clear_and_info(info, DISCARD_SYNC,
>  					     "turning off discard");
>  			btrfs_clear_and_info(info, DISCARD_ASYNC,
>  					     "turning off async discard");
> +			btrfs_set_opt(info->mount_opt, NODISCARD);
>  			break;
>  		case Opt_space_cache:
>  		case Opt_space_cache_version:
> diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
> index 272901514b0c..22bfc7806ccb 100644
> --- a/fs/btrfs/volumes.c
> +++ b/fs/btrfs/volumes.c
> @@ -639,6 +639,9 @@ static int btrfs_open_one_device(struct btrfs_fs_devices *fs_devices,
>  	if (!bdev_nonrot(bdev))
>  		fs_devices->rotating = true;
>  
> +	if (bdev_max_discard_sectors(bdev))
> +		fs_devices->discardable = true;
> +
>  	device->bdev = bdev;
>  	clear_bit(BTRFS_DEV_STATE_IN_FS_METADATA, &device->dev_state);
>  	device->mode = flags;
> diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
> index 5639961b3626..4c716603449d 100644
> --- a/fs/btrfs/volumes.h
> +++ b/fs/btrfs/volumes.h
> @@ -329,6 +329,8 @@ struct btrfs_fs_devices {
>  	 * nonrot flag set
>  	 */
>  	bool rotating;
> +	/* Devices support TRIM/discard commands */
> +	bool discardable;
>  
>  	struct btrfs_fs_info *fs_info;
>  	/* sysfs kobjects */
> -- 
> 2.36.1



^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2022-11-06  5:08 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-07-27 15:01 [PATCH] btrfs: auto enable discard=async when possible David Sterba
2022-07-27 18:46 ` Boris Burkov
2022-07-27 18:47 ` Roman Mamedov
2022-07-28 11:57   ` David Sterba
2022-08-06  7:29 ` Neal Gompa
2022-11-06  5:08 ` Wang Yugui

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