From: Nikolay Borisov <nborisov@suse.com>
To: Josef Bacik <josef@toxicpanda.com>,
linux-btrfs@vger.kernel.org, kernel-team@fb.com
Subject: Re: [PATCH 08/20] btrfs: call btrfs_try_granting_tickets when reserving space
Date: Fri, 31 Jan 2020 13:37:37 +0200 [thread overview]
Message-ID: <b9cbda5b-bc4d-1cfa-4b90-6d355904869f@suse.com> (raw)
In-Reply-To: <20200129235024.24774-9-josef@toxicpanda.com>
On 30.01.20 г. 1:50 ч., Josef Bacik wrote:
> If we have compression on we could free up more space than we reserved,
> and thus be able to make a space reservation. Add the call for this
> scenario.
>
> Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
> ---
> fs/btrfs/block-group.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c
> index 616d0dd69394..aca4510f1f2d 100644
> --- a/fs/btrfs/block-group.c
> +++ b/fs/btrfs/block-group.c
> @@ -2899,6 +2899,13 @@ int btrfs_add_reserved_bytes(struct btrfs_block_group *cache,
> space_info, -ram_bytes);
> if (delalloc)
> cache->delalloc_bytes += num_bytes;
> +
> + /*
> + * Compression can use less space than we reserved, so wake
> + * tickets if that happens.
> + */
> + if (num_bytes < ram_bytes)
> + btrfs_try_granting_tickets(cache->fs_info, space_info);
> }
> spin_unlock(&cache->lock);
> spin_unlock(&space_info->lock);
>
next prev parent reply other threads:[~2020-01-31 11:37 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-29 23:50 [PATCH 00/20][RFC] Convert data reservations to the ticketing infrastructure Josef Bacik
2020-01-29 23:50 ` [PATCH 01/20] btrfs: change nr to u64 in btrfs_start_delalloc_roots Josef Bacik
2020-01-30 12:06 ` Nikolay Borisov
2020-01-31 15:07 ` Josef Bacik
2020-01-31 15:13 ` Nikolay Borisov
2020-01-29 23:50 ` [PATCH 02/20] btrfs: remove orig from shrink_delalloc Josef Bacik
2020-01-30 11:44 ` Nikolay Borisov
2020-01-29 23:50 ` [PATCH 03/20] btrfs: handle U64_MAX for shrink_delalloc Josef Bacik
2020-01-30 11:46 ` Nikolay Borisov
2020-01-29 23:50 ` [PATCH 04/20] btrfs: make shrink_delalloc take space_info as an arg Josef Bacik
2020-01-30 12:15 ` Nikolay Borisov
2020-01-30 12:35 ` Nikolay Borisov
2020-01-29 23:50 ` [PATCH 05/20] btrfs: make ALLOC_CHUNK use the space info flags Josef Bacik
2020-01-30 13:19 ` Nikolay Borisov
2020-01-29 23:50 ` [PATCH 06/20] btrfs: call btrfs_try_granting_tickets when freeing reserved bytes Josef Bacik
2020-01-31 11:16 ` Nikolay Borisov
2020-01-29 23:50 ` [PATCH 07/20] btrfs: call btrfs_try_granting_tickets when unpinning anything Josef Bacik
2020-01-31 11:25 ` Nikolay Borisov
2020-01-29 23:50 ` [PATCH 08/20] btrfs: call btrfs_try_granting_tickets when reserving space Josef Bacik
2020-01-31 11:37 ` Nikolay Borisov [this message]
2020-01-29 23:50 ` [PATCH 09/20] btrfs: use the btrfs_space_info_free_bytes_may_use helper for delalloc Josef Bacik
2020-01-31 11:56 ` Nikolay Borisov
2020-01-29 23:50 ` [PATCH 10/20] btrfs: add flushing states for handling data reservations Josef Bacik
2020-01-29 23:50 ` [PATCH 11/20] btrfs: add btrfs_reserve_data_bytes and use it Josef Bacik
2020-01-29 23:50 ` [PATCH 12/20] btrfs: use ticketing for data space reservations Josef Bacik
2020-01-29 23:50 ` [PATCH 13/20] btrfs: run delayed iputs before committing the transaction for data Josef Bacik
2020-01-29 23:50 ` [PATCH 14/20] btrfs: flush delayed refs when trying to reserve data space Josef Bacik
2020-01-29 23:50 ` [PATCH 15/20] btrfs: serialize data reservations if we are flushing Josef Bacik
2020-01-29 23:50 ` [PATCH 16/20] btrfs: rework chunk allocate for data reservations Josef Bacik
2020-01-29 23:50 ` [PATCH 17/20] btrfs: drop the commit_cycles stuff " Josef Bacik
2020-01-29 23:50 ` [PATCH 18/20] btrfs: use the same helper for data and metadata reservations Josef Bacik
2020-01-29 23:50 ` [PATCH 19/20] btrfs: do async reclaim for data reservations Josef Bacik
2020-01-29 23:50 ` [PATCH 20/20] btrfs: kill the priority_reclaim_space helper Josef Bacik
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