diff options
Diffstat (limited to 'fs/gfs2/lops.h')
| -rw-r--r-- | fs/gfs2/lops.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/gfs2/lops.h b/fs/gfs2/lops.h index 965bc65c7c6..41a00df7558 100644 --- a/fs/gfs2/lops.h +++ b/fs/gfs2/lops.h @@ -13,6 +13,13 @@ #include <linux/list.h> #include "incore.h" +#define BUF_OFFSET \ + ((sizeof(struct gfs2_log_descriptor) + sizeof(__be64) - 1) & \ + ~(sizeof(__be64) - 1)) +#define DATABUF_OFFSET \ + ((sizeof(struct gfs2_log_descriptor) + (2 * sizeof(__be64) - 1)) & \ + ~(2 * sizeof(__be64) - 1)) + extern const struct gfs2_log_operations gfs2_glock_lops; extern const struct gfs2_log_operations gfs2_buf_lops; extern const struct gfs2_log_operations gfs2_revoke_lops; @@ -21,6 +28,22 @@ extern const struct gfs2_log_operations gfs2_databuf_lops; extern const struct gfs2_log_operations *gfs2_log_ops[]; +static inline unsigned int buf_limit(struct gfs2_sbd *sdp) +{ + unsigned int limit; + + limit = (sdp->sd_sb.sb_bsize - BUF_OFFSET) / sizeof(__be64); + return limit; +} + +static inline unsigned int databuf_limit(struct gfs2_sbd *sdp) +{ + unsigned int limit; + + limit = (sdp->sd_sb.sb_bsize - DATABUF_OFFSET) / (2 * sizeof(__be64)); + return limit; +} + static inline void lops_init_le(struct gfs2_log_element *le, const struct gfs2_log_operations *lops) { |