LU-15162 osd: improve OI lookup concurrency

[fs/lustre-release.git] / lustre / osd-ldiskfs / osd_compat.c

diff --git a/lustre/osd-ldiskfs/osd_compat.c b/lustre/osd-ldiskfs/osd_compat.c
index a67533e..eb94da2 100644 (file)
--- a/lustre/osd-ldiskfs/osd_compat.c
+++ b/lustre/osd-ldiskfs/osd_compat.c
@@ -51,6 +51,11 @@
 #include "osd_internal.h"
 #include "osd_oi.h"
 
+#ifndef HAVE_INODE_LOCK_SHARED
+#define inode_lock_shared(dir) inode_lock(dir)
+#define inode_unlock_shared(dir) inode_unlock(dir)
+#endif
+
 static void osd_push_ctxt(const struct osd_device *dev,
                          struct lvfs_run_ctxt *newctxt,
                          struct lvfs_run_ctxt *save)
@@ -1087,9 +1092,9 @@ int osd_obj_map_lookup(struct osd_thread_info *info, struct osd_device *dev,
        child->d_name.len = strlen(name);
 
        dir = d_seq->d_inode;
-       inode_lock(dir);
+       inode_lock_shared(dir);
        bh = osd_ldiskfs_find_entry(dir, &child->d_name, &de, NULL, NULL);
-       inode_unlock(dir);
+       inode_unlock_shared(dir);
 
        if (IS_ERR(bh))
                RETURN(PTR_ERR(bh));