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[387/622] lustre: osc: cancel osc_lock list traversal once found the lock is being used

Message ID 1582838290-17243-388-git-send-email-jsimmons@infradead.org
State New, archived
Headers show
Series lustre: sync closely to 2.13.52 | expand

Commit Message

James Simmons Feb. 27, 2020, 9:14 p.m. UTC
From: Gu Zheng <gzheng@ddn.com>

Currently, in osc_ldlm_weigh_ast, it walks osc_lock list (oo_ol_list)
to check whether target dlm is being used, normally, if found, it needs
to skip the rest ones and cancel the traversal, but it doesn't, let's
fix it here.

Fixes: 3f3a24dc5d7d ("LU-3259 clio: cl_lock simplification")
WC-bug-id: https://jira.whamcloud.com/browse/LU-11518
Lustre-commit: eb9aa909343b ("LU-11518 osc: cancel osc_lock list traversal once found the lock is being used")
Signed-off-by: Gu Zheng <gzheng@ddn.com>
Reviewed-on: https://review.whamcloud.com/35396
Reviewed-by: Patrick Farrell <pfarrell@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Li Xi <lixi@ddn.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
 fs/lustre/osc/osc_lock.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
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diff --git a/fs/lustre/osc/osc_lock.c b/fs/lustre/osc/osc_lock.c
index 29d8373..e01bf5f 100644
--- a/fs/lustre/osc/osc_lock.c
+++ b/fs/lustre/osc/osc_lock.c
@@ -687,9 +687,10 @@  unsigned long osc_ldlm_weigh_ast(struct ldlm_lock *dlmlock)
 	list_for_each_entry(oscl, &obj->oo_ol_list, ols_nextlock_oscobj) {
-		if (oscl->ols_dlmlock && oscl->ols_dlmlock != dlmlock)
-			continue;
-		found = true;
+		if (oscl->ols_dlmlock == dlmlock) {
+			found = true;
+			break;
+		}
 	if (found) {