diff options
Diffstat (limited to 'fs/ocfs2/ocfs2_fs.h')
| -rw-r--r-- | fs/ocfs2/ocfs2_fs.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h index 6ef876759a73..3633edd3982f 100644 --- a/fs/ocfs2/ocfs2_fs.h +++ b/fs/ocfs2/ocfs2_fs.h @@ -231,6 +231,20 @@ struct ocfs2_space_resv { #define OCFS2_IOC_RESVSP64 _IOW ('X', 42, struct ocfs2_space_resv) #define OCFS2_IOC_UNRESVSP64 _IOW ('X', 43, struct ocfs2_space_resv) +/* Used to pass group descriptor data when online resize is done */ +struct ocfs2_new_group_input { + __u64 group; /* Group descriptor's blkno. */ + __u32 clusters; /* Total number of clusters in this group */ + __u32 frees; /* Total free clusters in this group */ + __u16 chain; /* Chain for this group */ + __u16 reserved1; + __u32 reserved2; +}; + +#define OCFS2_IOC_GROUP_EXTEND _IOW('o', 1, int) +#define OCFS2_IOC_GROUP_ADD _IOW('o', 2,struct ocfs2_new_group_input) +#define OCFS2_IOC_GROUP_ADD64 _IOW('o', 3,struct ocfs2_new_group_input) + /* * Journal Flags (ocfs2_dinode.id1.journal1.i_flags) */ @@ -256,6 +270,14 @@ struct ocfs2_space_resv { /* Journal limits (in bytes) */ #define OCFS2_MIN_JOURNAL_SIZE (4 * 1024 * 1024) +/* + * Default local alloc size (in megabytes) + * + * The value chosen should be such that most allocations, including new + * block groups, use local alloc. + */ +#define OCFS2_DEFAULT_LOCAL_ALLOC_SIZE 8 + struct ocfs2_system_inode_info { char *si_name; int si_iflags; |