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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-12-21 03:14:03 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-12-21 03:14:03 +0100
commite219aafe50fd546b8686582ddbafd24c3c2eda04 (patch)
treea665e08ca8d42f20ac8e5dcc8565d666cffb26bd /fs/ext2/super.c
parentffe12855a5f7f195589130197558e6a5c276caa4 (diff)
parent24c96dc79c5e76d3cff7a33f955a4d3244644766 (diff)
Merge back earlier 'pm-domains' material for v4.5.
Diffstat (limited to 'fs/ext2/super.c')
-rw-r--r--fs/ext2/super.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 900e19cf9ef6f..748d35afc9026 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -192,6 +192,9 @@ static void init_once(void *foo)
init_rwsem(&ei->xattr_sem);
#endif
mutex_init(&ei->truncate_mutex);
+#ifdef CONFIG_FS_DAX
+ init_rwsem(&ei->dax_sem);
+#endif
inode_init_once(&ei->vfs_inode);
}
@@ -566,6 +569,8 @@ static int parse_options(char *options, struct super_block *sb)
/* Fall through */
case Opt_dax:
#ifdef CONFIG_FS_DAX
+ ext2_msg(sb, KERN_WARNING,
+ "DAX enabled. Warning: EXPERIMENTAL, use at your own risk");
set_opt(sbi->s_mount_opt, DAX);
#else
ext2_msg(sb, KERN_INFO, "dax option not supported");