From: Erez_Zadok <ezk@cs.sunysb.edu>
Date: Fri, 16 Nov 2007 18:46:35 +0000 (-0500)
Subject: Unionfs: support CONFIG_PREEMPT_RT
X-Git-Url: https://git.fsl.cs.sunysb.edu/?a=commitdiff_plain;h=b53dee43d05dbbb2dfedad42457a7899ac6535d8;p=unionfs-odf.git

Unionfs: support CONFIG_PREEMPT_RT

Use compat_rw_semaphore when using the real-time preemption patches.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
---

diff --git a/fs/unionfs/union.h b/fs/unionfs/union.h
index 2675b6bcf3..98bc39da11 100644
--- a/fs/unionfs/union.h
+++ b/fs/unionfs/union.h
@@ -174,7 +174,11 @@ struct unionfs_sb_info {
 	 *   2) any new operations do not execute until the currently
 	 *      running branch management operation completes
 	 */
+#ifdef CONFIG_PREEMPT_RT
+	struct compat_rw_semaphore rwsem;
+#else /* not CONFIG_PREEMPT_RT */
 	struct rw_semaphore rwsem;
+#endif /* not CONFIG_PREEMPT_RT */
 	int high_branch_id;	/* last unique branch ID given */
 	struct odf_sb_info odf;
 	struct unionfs_data *data;