diff options
Diffstat (limited to 'fs/gfs2/incore.h')
| -rw-r--r-- | fs/gfs2/incore.h | 49 |
1 files changed, 44 insertions, 5 deletions
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h index 97742a7ea9cc..4d546df58ac9 100644 --- a/fs/gfs2/incore.h +++ b/fs/gfs2/incore.h @@ -19,6 +19,8 @@ #include <linux/rculist_bl.h> #include <linux/completion.h> #include <linux/rbtree.h> +#include <linux/ktime.h> +#include <linux/percpu.h> #define DIO_WAIT 0x00000010 #define DIO_METADATA 0x00000020 @@ -205,6 +207,22 @@ struct gfs2_glock_operations { }; enum { + GFS2_LKS_SRTT = 0, /* Non blocking smoothed round trip time */ + GFS2_LKS_SRTTVAR = 1, /* Non blocking smoothed variance */ + GFS2_LKS_SRTTB = 2, /* Blocking smoothed round trip time */ + GFS2_LKS_SRTTVARB = 3, /* Blocking smoothed variance */ + GFS2_LKS_SIRT = 4, /* Smoothed Inter-request time */ + GFS2_LKS_SIRTVAR = 5, /* Smoothed Inter-request variance */ + GFS2_LKS_DCOUNT = 6, /* Count of dlm requests */ + GFS2_LKS_QCOUNT = 7, /* Count of gfs2_holder queues */ + GFS2_NR_LKSTATS +}; + +struct gfs2_lkstats { + s64 stats[GFS2_NR_LKSTATS]; +}; + +enum { /* States */ HIF_HOLDER = 6, /* Set for gh that "holds" the glock */ HIF_FIRST = 7, @@ -238,10 +256,12 @@ enum { GLF_QUEUED = 12, GLF_LRU = 13, GLF_OBJECT = 14, /* Used only for tracing */ + GLF_BLOCKING = 15, }; struct gfs2_glock { struct hlist_bl_node gl_list; + struct gfs2_sbd *gl_sbd; unsigned long gl_flags; /* GLF_... */ struct lm_lockname gl_name; atomic_t gl_ref; @@ -261,16 +281,14 @@ struct gfs2_glock { struct list_head gl_holders; const struct gfs2_glock_operations *gl_ops; - char gl_strname[GDLM_STRNAME_BYTES]; + ktime_t gl_dstamp; + struct gfs2_lkstats gl_stats; struct dlm_lksb gl_lksb; char gl_lvb[32]; unsigned long gl_tchange; void *gl_object; struct list_head gl_lru; - - struct gfs2_sbd *gl_sbd; - struct list_head gl_ail_list; atomic_t gl_ail_count; atomic_t gl_revokes; @@ -560,8 +578,14 @@ struct lm_lockstruct { uint32_t *ls_recover_result; /* result of last jid recovery */ }; +struct gfs2_pcpu_lkstats { + /* One struct for each glock type */ + struct gfs2_lkstats lkstats[10]; +}; + struct gfs2_sbd { struct super_block *sd_vfs; + struct gfs2_pcpu_lkstats __percpu *sd_lkstats; struct kobject sd_kobj; unsigned long sd_flags; /* SDF_... */ struct gfs2_sb_host sd_sb; @@ -725,8 +749,23 @@ struct gfs2_sbd { unsigned long sd_last_warning; struct dentry *debugfs_dir; /* debugfs directory */ - struct dentry *debugfs_dentry_glocks; /* for debugfs */ + struct dentry *debugfs_dentry_glocks; + struct dentry *debugfs_dentry_glstats; + struct dentry *debugfs_dentry_sbstats; }; +static inline void gfs2_glstats_inc(struct gfs2_glock *gl, int which) +{ + gl->gl_stats.stats[which]++; +} + +static inline void gfs2_sbstats_inc(const struct gfs2_glock *gl, int which) +{ + const struct gfs2_sbd *sdp = gl->gl_sbd; + preempt_disable(); + this_cpu_ptr(sdp->sd_lkstats)->lkstats[gl->gl_name.ln_type].stats[which]++; + preempt_enable(); +} + #endif /* __INCORE_DOT_H__ */ |