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authorAlexander Aring <aahringo@redhat.com>2024-04-15 21:39:42 +0300
committerDavid Teigland <teigland@redhat.com>2024-04-16 22:45:31 +0300
commite91313591b29ce724fe2f1bdf29f2482878fc275 (patch)
treef3058f289d907f09b98a946527b388e6e6f57a93 /fs/dlm/recover.c
parentb1f2381c1a8d52b973944090ed8b42c750152533 (diff)
downloadlinux-e91313591b29ce724fe2f1bdf29f2482878fc275.tar.xz
dlm: use rwlock for rsb hash table
The conversion to rhashtable introduced a hash table lock per lockspace, in place of per bucket locks. To make this more scalable, switch to using a rwlock for hash table access. The common case fast path uses it as a read lock. Signed-off-by: Alexander Aring <aahringo@redhat.com> Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm/recover.c')
-rw-r--r--fs/dlm/recover.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/dlm/recover.c b/fs/dlm/recover.c
index 960a14b95605..f493d5f30c58 100644
--- a/fs/dlm/recover.c
+++ b/fs/dlm/recover.c
@@ -884,7 +884,7 @@ void dlm_clear_toss(struct dlm_ls *ls)
struct dlm_rsb *r, *safe;
unsigned int count = 0;
- spin_lock_bh(&ls->ls_rsbtbl_lock);
+ write_lock_bh(&ls->ls_rsbtbl_lock);
list_for_each_entry_safe(r, safe, &ls->ls_toss, res_rsbs_list) {
list_del(&r->res_rsbs_list);
rhashtable_remove_fast(&ls->ls_rsbtbl, &r->res_node,
@@ -897,7 +897,7 @@ void dlm_clear_toss(struct dlm_ls *ls)
free_toss_rsb(r);
count++;
}
- spin_unlock_bh(&ls->ls_rsbtbl_lock);
+ write_unlock_bh(&ls->ls_rsbtbl_lock);
if (count)
log_rinfo(ls, "dlm_clear_toss %u done", count);