diff options
Diffstat (limited to 'fs/nilfs2/the_nilfs.h')
| -rw-r--r-- | fs/nilfs2/the_nilfs.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h index fd85e4c05c6b..438278041d80 100644 --- a/fs/nilfs2/the_nilfs.h +++ b/fs/nilfs2/the_nilfs.h @@ -72,6 +72,7 @@ enum { * @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 @@ struct the_nilfs { /* 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(DISCONTINUED, discontinued) 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 |