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From: Josef Bacik <josef@toxicpanda.com>
To: linux-btrfs@vger.kernel.org, kernel-team@fb.com
Cc: Nikolay Borisov <nborisov@suse.com>
Subject: [PATCH v4 07/12] btrfs: check reclaim_size in need_preemptive_reclaim
Date: Tue, 26 Jan 2021 16:24:31 -0500	[thread overview]
Message-ID: <90d587ce068421771a24ab819969de3e498dce61.1611695838.git.josef@toxicpanda.com> (raw)
In-Reply-To: <cover.1611695838.git.josef@toxicpanda.com>

If we're flushing space for tickets then we have
space_info->reclaim_size set and we do not need to do background
reclaim.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
---
 fs/btrfs/space-info.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/btrfs/space-info.c b/fs/btrfs/space-info.c
index e68cd73b4222..c3c586b33b4b 100644
--- a/fs/btrfs/space-info.c
+++ b/fs/btrfs/space-info.c
@@ -812,6 +812,13 @@ static bool need_preemptive_reclaim(struct btrfs_fs_info *fs_info,
 	if ((space_info->bytes_used + space_info->bytes_reserved) >= thresh)
 		return 0;
 
+	/*
+	 * We have tickets queued, bail so we don't compete with the async
+	 * flushers.
+	 */
+	if (space_info->reclaim_size)
+		return 0;
+
 	if (!btrfs_calc_reclaim_metadata_size(fs_info, space_info))
 		return 0;
 
-- 
2.26.2


  parent reply	other threads:[~2021-01-26 23:09 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-26 21:24 [PATCH v4 00/12] Improve preemptive ENOSPC flushing Josef Bacik
2021-01-26 21:24 ` [PATCH v4 01/12] btrfs: make flush_space take a enum btrfs_flush_state instead of int Josef Bacik
2021-01-26 21:24 ` [PATCH v4 02/12] btrfs: add a trace point for reserve tickets Josef Bacik
2021-01-26 21:24 ` [PATCH v4 03/12] btrfs: track ordered bytes instead of just dio ordered bytes Josef Bacik
2021-01-26 21:24 ` [PATCH v4 04/12] btrfs: introduce a FORCE_COMMIT_TRANS flush operation Josef Bacik
2021-01-26 21:24 ` [PATCH v4 05/12] btrfs: improve preemptive background space flushing Josef Bacik
2021-01-26 21:24 ` [PATCH v4 06/12] btrfs: rename need_do_async_reclaim Josef Bacik
2021-01-26 21:24 ` Josef Bacik [this message]
2021-01-26 21:24 ` [PATCH v4 08/12] btrfs: rework btrfs_calc_reclaim_metadata_size Josef Bacik
2021-01-26 21:24 ` [PATCH v4 09/12] btrfs: simplify the logic in need_preemptive_flushing Josef Bacik
2021-01-26 21:24 ` [PATCH v4 10/12] btrfs: implement space clamping for preemptive flushing Josef Bacik
2021-01-26 21:24 ` [PATCH v4 11/12] btrfs: adjust the flush trace point to include the source Josef Bacik
2021-01-26 21:24 ` [PATCH v4 12/12] btrfs: add a trace class for dumping the current ENOSPC state Josef Bacik
2021-01-27 15:03 ` [PATCH v4 00/12] Improve preemptive ENOSPC flushing David Sterba

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