[lustre-devel] [PATCH 522/622] lustre: llite: statfs to use NODELAY with MDS

[James Simmons]

From: Alex Zhuravlev <bzzz at whamcloud.com>

otherwise client umount can get stuck if MDS is down
for a reason. recovery-small/110k simulates this.

WC-bug-id: https://jira.whamcloud.com/browse/LU-12809
Lustre-commit: a7ae8da24229 ("LU-12809 llite: statfs to use NODELAY with MDS")
Signed-off-by: Alex Zhuravlev <bzzz at whamcloud.com>
Reviewed-on: https://review.whamcloud.com/36297
Reviewed-by: Andreas Dilger <adilger at whamcloud.com>
Reviewed-by: Mike Pershin <mpershin at whamcloud.com>
Signed-off-by: James Simmons <jsimmons at infradead.org>
---
 fs/lustre/llite/llite_lib.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/lustre/llite/llite_lib.c b/fs/lustre/llite/llite_lib.c
index 84472fb..1245336 100644
--- a/fs/lustre/llite/llite_lib.c
+++ b/fs/lustre/llite/llite_lib.c
@@ -1869,6 +1869,9 @@ int ll_statfs_internal(struct ll_sb_info *sbi, struct obd_statfs *osfs,
 
 	max_age = ktime_get_seconds() - sbi->ll_statfs_max_age;
 
+	if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
+		flags |= OBD_STATFS_NODELAY;
+
 	rc = obd_statfs(NULL, sbi->ll_md_exp, osfs, max_age, flags);
 	if (rc)
 		return rc;
@@ -1882,9 +1885,6 @@ int ll_statfs_internal(struct ll_sb_info *sbi, struct obd_statfs *osfs,
 	if (osfs->os_state & OS_STATE_SUM)
 		goto out;
 
-	if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
-		flags |= OBD_STATFS_NODELAY;
-
 	rc = obd_statfs(NULL, sbi->ll_dt_exp, &obd_osfs, max_age, flags);
 	if (rc) {
 		/* Possibly a filesystem with no OSTs.  Report MDT totals. */
-- 
1.8.3.1