From: Andrew Perepechko <andrew.perepechko@hpe.com>
Date: Sun, 11 Dec 2022 11:22:49 +0000 (+0300)
Subject: LU-16381 ofd: fix soft_sync_limit lprocfs write handler
X-Git-Tag: 2.15.55~85
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;h=0adebb70a48c12ce6d537174c9470b5f9f918e3d;p=fs%2Flustre-release.git

LU-16381 ofd: fix soft_sync_limit lprocfs write handler

soft_sync_limit_store() must return the size of the input buffer
in the success case, otherwise the writer may loop forever.

Change-Id: I2d926eaba7062c495a56c6ee32e1b82e08df63ce
Signed-off-by: Andrew Perepechko <andrew.perepechko@hpe.com>
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/49362
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
---

diff --git a/lustre/ofd/lproc_ofd.c b/lustre/ofd/lproc_ofd.c
index ae1ca11..74020a6 100644
--- a/lustre/ofd/lproc_ofd.c
+++ b/lustre/ofd/lproc_ofd.c
@@ -584,7 +584,7 @@ static ssize_t soft_sync_limit_store(struct kobject *kobj,
 		return rc;
 
 	ofd->ofd_soft_sync_limit = val;
-	return 0;
+	return count;
 }
 LUSTRE_RW_ATTR(soft_sync_limit);