LU-3557 mdt: fix open existing file with O_CREAT for ro mount

[fs/lustre-release.git] / lustre / mdt / mdt_handler.c

diff --git a/lustre/mdt/mdt_handler.c b/lustre/mdt/mdt_handler.c
index 15f6c4b..0de83de 100644 (file)
--- a/lustre/mdt/mdt_handler.c
+++ b/lustre/mdt/mdt_handler.c
@@ -3537,7 +3537,14 @@ static struct mdt_it_flavor {
         },
         [MDT_IT_OCREAT]   = {
                 .it_fmt   = &RQF_LDLM_INTENT,
         },
         [MDT_IT_OCREAT]   = {
                 .it_fmt   = &RQF_LDLM_INTENT,

-                .it_flags = MUTABOR,
+               /*
+                * OCREAT is not a MUTABOR request as if the file
+                * already exists.
+                * We do the extra check of OBD_CONNECT_RDONLY in
+                * mdt_reint_open() when we really need to create
+                * the object.
+                */
+               .it_flags = 0,

                 .it_act   = mdt_intent_reint,
                 .it_reint = REINT_OPEN
         },
                 .it_act   = mdt_intent_reint,
                 .it_reint = REINT_OPEN
         },