extern void gfs2_remove_from_ail(struct gfs2_bufdata *bd);
extern bool gfs2_log_is_empty(struct gfs2_sbd *sdp);
extern void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks);
-extern int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks);
+extern void gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks);
extern void gfs2_write_log_header(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
u64 seq, u32 tail, u32 lblock, u32 flags,
int op_flags);