nilfs2: move mount options to nilfs object
This moves mount_opt local variable to nilfs object from nilfs_sb_info
struct.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index fd85e4c..4382780 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -72,6 +72,7 @@
* @ns_cptree: rb-tree of all mounted checkpoints (nilfs_root)
* @ns_cptree_lock: lock protecting @ns_cptree
* @ns_gc_inodes: dummy inodes to keep live blocks
+ * @ns_mount_opt: mount options
* @ns_blocksize_bits: bit length of block size
* @ns_blocksize: block size
* @ns_nsegments: number of segments in filesystem
@@ -148,6 +149,9 @@
/* GC inode list */
struct list_head ns_gc_inodes;
+ /* Mount options */
+ unsigned long ns_mount_opt;
+
/* Disk layout information (static) */
unsigned int ns_blocksize_bits;
unsigned int ns_blocksize;
@@ -180,6 +184,20 @@
THE_NILFS_FNS(GC_RUNNING, gc_running)
THE_NILFS_FNS(SB_DIRTY, sb_dirty)
+/*
+ * Mount option operations
+ */
+#define nilfs_clear_opt(nilfs, opt) \
+ do { (nilfs)->ns_mount_opt &= ~NILFS_MOUNT_##opt; } while (0)
+#define nilfs_set_opt(nilfs, opt) \
+ do { (nilfs)->ns_mount_opt |= NILFS_MOUNT_##opt; } while (0)
+#define nilfs_test_opt(nilfs, opt) ((nilfs)->ns_mount_opt & NILFS_MOUNT_##opt)
+#define nilfs_write_opt(nilfs, mask, opt) \
+ do { (nilfs)->ns_mount_opt = \
+ (((nilfs)->ns_mount_opt & ~NILFS_MOUNT_##mask) | \
+ NILFS_MOUNT_##opt); \
+ } while (0)
+
/**
* struct nilfs_root - nilfs root object
* @cno: checkpoint number