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| author | Marco Crivellari <marco.crivellari@suse.com> | 2025-09-16 10:29:04 +0200 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-09-19 16:15:07 +0200 |
| commit | 7a4f92d39f66f890cbb157dd4d7daf6a9298324a (patch) | |
| tree | 70b2617533d7f8f20eecaaeb8661e48470f34156 /fs/ext4 | |
| parent | Linux 6.17-rc1 (diff) | |
| download | linux-7a4f92d39f66f890cbb157dd4d7daf6a9298324a.tar.gz linux-7a4f92d39f66f890cbb157dd4d7daf6a9298324a.zip | |
fs: replace use of system_unbound_wq with system_dfl_wq
Currently if a user enqueue a work item using schedule_delayed_work() the
used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use
WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to
schedule_work() that is using system_wq and queue_work(), that makes use
again of WORK_CPU_UNBOUND.
This lack of consistentcy cannot be addressed without refactoring the API.
system_unbound_wq should be the default workqueue so as not to enforce
locality constraints for random work whenever it's not required.
Adding system_dfl_wq to encourage its use when unbound work should be used.
The old system_unbound_wq will be kept for a few release cycles.
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Link: https://lore.kernel.org/20250916082906.77439-2-marco.crivellari@suse.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/mballoc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 5898d92ba19f..8b18802e83eb 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -3995,7 +3995,7 @@ void ext4_process_freed_data(struct super_block *sb, tid_t commit_tid) list_splice_tail(&freed_data_list, &sbi->s_discard_list); spin_unlock(&sbi->s_md_lock); if (wake) - queue_work(system_unbound_wq, &sbi->s_discard_work); + queue_work(system_dfl_wq, &sbi->s_discard_work); } else { list_for_each_entry_safe(entry, tmp, &freed_data_list, efd_list) kmem_cache_free(ext4_free_data_cachep, entry); |