LU-8900 snapshot: user interface for write barrier on MDT

[fs/lustre-release.git] / lustre / mgs / mgs_internal.h

diff --git a/lustre/mgs/mgs_internal.h b/lustre/mgs/mgs_internal.h
index 46979e9..b9b1ea4 100644 (file)
--- a/lustre/mgs/mgs_internal.h
+++ b/lustre/mgs/mgs_internal.h
@@ -132,6 +132,8 @@ struct fs_db {
        unsigned long     fsdb_flags;
        __u32             fsdb_barrier_status;
        __u32             fsdb_barrier_timeout;
+       __u32             fsdb_barrier_expected;
+       int               fsdb_barrier_result;
        time_t            fsdb_barrier_latest_create_time;
 
         /* in-memory copy of the srpc rules, guarded by fsdb_lock */
@@ -258,6 +260,11 @@ int mgs_client_free(struct obd_export *exp);
 int mgs_fs_setup(const struct lu_env *env, struct mgs_device *m);
 int mgs_fs_cleanup(const struct lu_env *env, struct mgs_device *m);
 
+/* mgs_barrier.c */
+int mgs_iocontrol_barrier(const struct lu_env *env,
+                         struct mgs_device *mgs,
+                         struct obd_ioctl_data *data);
+
 #ifdef CONFIG_PROC_FS
 int lproc_mgs_setup(struct mgs_device *mgs, const char *osd_name);
 void lproc_mgs_cleanup(struct mgs_device *mgs);
@@ -298,6 +305,7 @@ struct mgs_thread_info {
        char                    mgi_fsname[MTI_NAME_MAXLEN];
        struct cfg_marker       mgi_marker;
        struct temp_comp        mgi_comp;
+       union ldlm_gl_desc      mgi_gl_desc;
 };
 
 extern struct lu_context_key mgs_thread_key;