mm, swap: use cluster lock for HDD

Browse source

Cluster lock (ci->lock) was introduced to reduce contention for certain
operations.  Using cluster lock for HDD is not helpful as HDD have a poor
performance, so locking isn't the bottleneck.  But having different set of
locks for HDD / non-HDD prevents further rework of device lock (si->lock).

This commit just changed all lock_cluster_or_swap_info to lock_cluster,
which is a safe and straight conversion since cluster info is always
allocated now, also removed all cluster_info related checks.

Link: https://lkml.kernel.org/r/20250113175732.48099-5-ryncsn@gmail.com
Signed-off-by: Kairui Song <kasong@tencent.com>
Suggested-by: Chris Li <chrisl@kernel.org>
Reviewed-by: Baoquan He <bhe@redhat.com>
Cc: Barry Song <v-songbaohua@oppo.com>
Cc: "Huang, Ying" <ying.huang@linux.alibaba.com>
Cc: Hugh Dickens <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Yosry Ahmed <yosryahmed@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

...

This commit is contained in:

Kairui Song 2025-01-14 01:57:23 +08:00 • committed by Andrew Morton

parent 7277433096

commit 0b310d9cfd

1 changed files with 35 additions and 74 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

109

mm/swapfile.c

View file