From: Nikolay Borisov <nborisov@suse.com>
To: Dennis Zhou <dennis@kernel.org>, David Sterba <dsterba@suse.com>,
Josef Bacik <josef@toxicpanda.com>, Chris Mason <clm@fb.com>,
Omar Sandoval <osandov@osandov.com>,
Nick Terrell <terrelln@fb.com>
Cc: kernel-team@fb.com, linux-btrfs@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 04/11] btrfs: unify compression ops with workspace_manager
Date: Tue, 29 Jan 2019 09:54:20 +0200 [thread overview]
Message-ID: <415fbefb-1a69-5b80-02c4-aab8b204375c@suse.com> (raw)
In-Reply-To: <20190128212437.11597-5-dennis@kernel.org>
On 28.01.19 г. 23:24 ч., Dennis Zhou wrote:
> Make the workspace_manager own the interface operations rather than
> managing index-paired arrays for the workspace_manager and compression
> operations.
>
> Signed-off-by: Dennis Zhou <dennis@kernel.org>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
> ---
> fs/btrfs/compression.c | 11 +++++++----
> 1 file changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
> index bda7e8d2cbc7..b7e986e16640 100644
> --- a/fs/btrfs/compression.c
> +++ b/fs/btrfs/compression.c
> @@ -777,6 +777,7 @@ const struct btrfs_compress_op btrfs_heuristic_compress = {
> };
>
> struct workspace_manager {
> + const struct btrfs_compress_op *ops;
> struct list_head idle_ws;
> spinlock_t ws_lock;
> /* Number of free workspaces */
> @@ -802,6 +803,8 @@ void __init btrfs_init_compress(void)
> int i;
>
> for (i = 0; i < BTRFS_COMPRESS_TYPES; i++) {
> + wsm[i].ops = btrfs_compress_op[i];
> +
> INIT_LIST_HEAD(&wsm[i].idle_ws);
> spin_lock_init(&wsm[i].ws_lock);
> atomic_set(&wsm[i].total_ws, 0);
> @@ -811,7 +814,7 @@ void __init btrfs_init_compress(void)
> * Preallocate one workspace for each compression type so
> * we can guarantee forward progress in the worst case
> */
> - workspace = btrfs_compress_op[i]->alloc_workspace();
> + workspace = wsm[i].ops->alloc_workspace();
> if (IS_ERR(workspace)) {
> pr_warn("BTRFS: cannot preallocate compression workspace, will try later\n");
> } else {
> @@ -874,7 +877,7 @@ static struct list_head *find_workspace(int type)
> * context of btrfs_compress_bio/btrfs_compress_pages
> */
> nofs_flag = memalloc_nofs_save();
> - workspace = btrfs_compress_op[type]->alloc_workspace();
> + workspace = wsm[type].ops->alloc_workspace();
> memalloc_nofs_restore(nofs_flag);
>
> if (IS_ERR(workspace)) {
> @@ -932,7 +935,7 @@ static void free_workspace(int type, struct list_head *workspace)
> }
> spin_unlock(ws_lock);
>
> - btrfs_compress_op[type]->free_workspace(workspace);
> + wsm[type].ops->free_workspace(workspace);
> atomic_dec(total_ws);
> wake:
> cond_wake_up(ws_wait);
> @@ -950,7 +953,7 @@ static void free_workspaces(void)
> while (!list_empty(&wsm[i].idle_ws)) {
> workspace = wsm[i].idle_ws.next;
> list_del(workspace);
> - btrfs_compress_op[i]->free_workspace(workspace);
> + wsm[i].ops->free_workspace(workspace);
> atomic_dec(&wsm[i].total_ws);
> }
> }
>
next prev parent reply other threads:[~2019-01-29 7:54 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-28 21:24 [PATCH 00/11] btrfs: add zstd compression level support Dennis Zhou
2019-01-28 21:24 ` [PATCH 01/11] btrfs: add macros for compression type and level Dennis Zhou
2019-01-29 7:26 ` Nikolay Borisov
2019-01-29 17:57 ` Josef Bacik
2019-01-29 22:30 ` Omar Sandoval
2019-01-31 16:00 ` David Sterba
2019-01-31 16:17 ` Dennis Zhou
2019-01-28 21:24 ` [PATCH 02/11] btrfs: rename workspaces_list to workspace_manager Dennis Zhou
2019-01-29 7:27 ` Nikolay Borisov
2019-01-29 17:58 ` Josef Bacik
2019-01-28 21:24 ` [PATCH 03/11] btrfs: manage heuristic workspace as index 0 Dennis Zhou
2019-01-29 7:53 ` Nikolay Borisov
2019-01-29 22:43 ` Dennis Zhou
2019-01-29 18:02 ` Josef Bacik
2019-01-31 16:10 ` David Sterba
2019-01-28 21:24 ` [PATCH 04/11] btrfs: unify compression ops with workspace_manager Dennis Zhou
2019-01-29 7:54 ` Nikolay Borisov [this message]
2019-01-29 18:03 ` Josef Bacik
2019-01-28 21:24 ` [PATCH 05/11] btrfs: add helper methods for workspace manager init and cleanup Dennis Zhou
2019-01-29 7:58 ` Nikolay Borisov
2019-01-29 18:04 ` Josef Bacik
2019-01-28 21:24 ` [PATCH 06/11] btrfs: add compression interface in (get/put)_workspace() Dennis Zhou
2019-01-29 18:06 ` Josef Bacik
2019-01-28 21:24 ` [PATCH 07/11] btrfs: move to fn pointers for get/put workspaces Dennis Zhou
2019-01-29 8:22 ` Nikolay Borisov
2019-01-29 23:35 ` Dennis Zhou
2019-01-29 18:17 ` Josef Bacik
2019-01-29 18:44 ` Josef Bacik
2019-01-28 21:24 ` [PATCH 08/11] btrfs: plumb level through the compression interface Dennis Zhou
2019-01-29 8:08 ` Nikolay Borisov
2019-01-29 18:17 ` Josef Bacik
2019-01-28 21:24 ` [PATCH 09/11] btrfs: change set_level() to bound the level passed in Dennis Zhou
2019-01-29 8:14 ` Nikolay Borisov
2019-01-30 22:06 ` Dennis Zhou
2019-01-28 21:24 ` [PATCH 10/11] btrfs: zstd use the passed through level instead of default Dennis Zhou
2019-01-29 8:15 ` Nikolay Borisov
2019-01-28 21:24 ` [PATCH 11/11] btrfs: add zstd compression level support Dennis Zhou
2019-01-29 7:25 ` Nikolay Borisov
2019-01-29 22:50 ` Dennis Zhou
2019-01-31 18:10 ` David Sterba
2019-01-31 18:13 ` David Sterba
2019-01-29 17:18 ` [PATCH 00/11] " David Sterba
2019-01-29 21:12 ` Nick Terrell
2019-01-30 17:40 ` Dennis Zhou
2019-01-31 14:04 ` David Sterba
2019-01-31 15:56 ` Dennis Zhou
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