LU-11193 llog: Do not write to read-only devices

[fs/lustre-release.git] / lustre / obdclass / llog.c

diff --git a/lustre/obdclass/llog.c b/lustre/obdclass/llog.c
index dc33905..7f491ac 100644 (file)
--- a/lustre/obdclass/llog.c
+++ b/lustre/obdclass/llog.c
@@ -169,6 +169,9 @@ int llog_destroy(const struct lu_env *env, struct llog_handle *handle)
 
        dt = lu2dt_dev(handle->lgh_obj->do_lu.lo_dev);
 
+       if (unlikely(unlikely(dt->dd_rdonly)))
+               RETURN(-EROFS);
+
        th = dt_trans_create(env, dt);
        if (IS_ERR(th))
                RETURN(PTR_ERR(th));
@@ -221,6 +224,9 @@ int llog_cancel_rec(const struct lu_env *env, struct llog_handle *loghandle,
 
        dt = lu2dt_dev(loghandle->lgh_obj->do_lu.lo_dev);
 
+       if (unlikely(unlikely(dt->dd_rdonly)))
+               RETURN(0);
+
        th = dt_trans_create(env, dt);
        if (IS_ERR(th))
                RETURN(PTR_ERR(th));
@@ -1117,6 +1123,9 @@ int llog_open_create(const struct lu_env *env, struct llog_ctxt *ctxt,
 
        d = lu2dt_dev((*res)->lgh_obj->do_lu.lo_dev);
 
+       if (unlikely(unlikely(d->dd_rdonly)))
+               RETURN(-EROFS);
+
        th = dt_trans_create(env, d);
        if (IS_ERR(th))
                GOTO(out, rc = PTR_ERR(th));
@@ -1195,6 +1204,9 @@ int llog_write(const struct lu_env *env, struct llog_handle *loghandle,
 
        dt = lu2dt_dev(loghandle->lgh_obj->do_lu.lo_dev);
 
+       if (unlikely(unlikely(dt->dd_rdonly)))
+               RETURN(-EROFS);
+
        th = dt_trans_create(env, dt);
        if (IS_ERR(th))
                RETURN(PTR_ERR(th));