LU-4684 llite: add lock for dir layout data

[fs/lustre-release.git] / lustre / llite / llite_internal.h

diff --git a/lustre/llite/llite_internal.h b/lustre/llite/llite_internal.h
index a9a7d96..45cf1a0 100644 (file)
--- a/lustre/llite/llite_internal.h
+++ b/lustre/llite/llite_internal.h
@@ -166,6 +166,8 @@ struct ll_inode_info {
                        unsigned int                    lli_sa_enabled:1;
                        /* generation for statahead */
                        unsigned int                    lli_sa_generation;
+                       /* rw lock protects lli_lsm_md */
+                       struct rw_semaphore             lli_lsm_sem;
                        /* directory stripe information */
                        struct lmv_stripe_md            *lli_lsm_md;
                        /* default directory stripe offset.  This is extracted
@@ -978,6 +980,7 @@ enum {
        LUSTRE_OPC_ANY          = 5,
 };
 
+void ll_unlock_md_op_lsm(struct md_op_data *op_data);
 struct md_op_data *ll_prep_md_op_data(struct md_op_data *op_data,
                                      struct inode *i1, struct inode *i2,
                                      const char *name, size_t namelen,